Authenticate connections to web_config service

- Require all requests to use a session path.
 - Use a redirect file to avoid exposing the URL on the command line, as
   it contains the session path.

Fix for CVE-2014-2914.
Closes #1438.

.clang-format

@@ -1,10 +0,0 @@
-# Use the Google style with these modifications:
-#
-# 1) lines can be up to 100 chars long rather than 80, and
-# 2) use a four space indent rather than two spaces.
-#
-BasedOnStyle: Google
-ColumnLimit: 100
-IndentWidth: 4
-# We don't want OCLint pragmas to be reformatted.
-CommentPragmas: '^!OCLINT'

.cppcheck.rules

@@ -1,35 +0,0 @@
-<?xml version="1.0"?>
-
-<![CDATA[
-<!-- Sadly we can't enable the following two rules since doing so causes false
-     positives in standard header files rather than just project specific
-     source files. If we can find a way to enable these rules by also
-     excluding system include files we should do so.
-<rule version="1">
-    <pattern> wcwidth \(</pattern>
-    <message>
-        <id>wcwidthForbidden</id>
-        <severity>warning</severity>
-        <summary>Always use fish_wcwidth rather than wcwidth.</summary>
-    </message>
-</rule>
-
-<rule version="1">
-    <pattern> wcswidth \(</pattern>
-    <message>
-        <id>wcswidthForbidden</id>
-        <severity>warning</severity>
-        <summary>Always use fish_wcswidth rather than wcswidth.</summary>
-    </message>
-</rule>
-<--!>
-]]>
-
-<rule>
-    <pattern>flock \(</pattern>
-    <message>
-        <id>flockSemanticsWarning</id>
-        <severity>warning</severity>
-        <summary>flock has a fallback implemented in terms of fcntl; ensure that the fcntl semantics will apply (see http://0pointer.de/blog/projects/locking.html)</summary>
-    </message>
-</rule>

.cppcheck.suppressions

@@ -1,14 +0,0 @@
-// suppress all instances of varFuncNullUB: "Passing NULL after the last typed
-// argument to a variadic function leads to undefined behaviour." That's
-// because all the places we do this are valid and won't cause problems even
-// on a ILP64 platform because we're careful about using NULL rather than 0.
-varFuncNullUB
-// Suppress the warning about unmatched suppressions. At the moment these
-// warnings are emitted even when removing the suppression comment results in
-// the warning being suppressed. In other words this unmatchedSuppression
-// warnings are false positives.
-unmatchedSuppression
-
-memleak:src/env_universal_common.cpp
-flockSemanticsWarning:src/env_universal_common.cpp
-flockSemanticsWarning:src/history.cpp

.editorconfig

@@ -1,21 +0,0 @@
-root = true
-
-[*]
-indent_size = 4
-indent_style = space
-end_of_line = lf
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
-
-[{Makefile,*.in}]
-indent_style = tab
-
-[*.md]
-trim_trailing_whitespace = false
-
-[*.{sh,ac}]
-indent_size = 2
-
-[Dockerfile]
-indent_size = 2

.gitattributes

@@ -1,42 +1,4 @@
-# normalize newlines
-* text=auto
-*.fish text
-*.bat eol=crlf
-
-# let git show off diff hunk headers, help git diff -L:
-# https://git-scm.com/docs/gitattributes
-*.cpp diff=cpp
-*.py diff=py
-# add a [diff "fish"] to git config with pattern
-*.fish diff=fish
-
-# omit from git archive
 .gitattributes export-ignore
 .gitignore export-ignore
-.travis.yml export-ignore
-fish.spec.in export-ignore
-/build_tools/make_svn_completions.fish export-ignore
-/build_tools/make_hg_completions.fish export-ignore
-/build_tools/make_vcs_completions.fish export-ignore
-/build_tools/make_vcs_completions_generic.fish export-ignore
-/build_tools/osx_package_resources export-ignore
-/build_tools/osx_package_resources/* export-ignore
-/build_tools/make_csv_completions.fish export-ignore
-/build_tools/osx_distribution.xml export-ignore
-/build_tools/make_tarball.sh export-ignore
-/build_tools/osx_package_scripts export-ignore
-/build_tools/osx_package_scripts/* export-ignore
-/build_tools/make_pkg.sh export-ignore
-/build_tools/make_darcs_completions.fish export-ignore
-/debian export-ignore
-/debian/* export-ignore
-/.github export-ignore
-/.github/* export-ignore
+/build_tools export-ignore
 
-# for linguist; let github identify our project as C++ instead of C due to pcre2
-/pcre2-10.21/ linguist-vendored
-/pcre2-10.21/* linguist-vendored
-angular.js linguist-vendored
-/doc_src/* linguist-documentation
-*.fish linguist-language=fish
-tests/*.in linguist-language=fish

.github/ISSUE_TEMPLATE.md

@@ -1,21 +0,0 @@
-<!-- check if this problem is already solved! github.com/issues?q=is:issue+user:fish-shell -->
-- [ ] Have you checked if problem occurs with [fish 2.4.0](/fish-shell/fish-shell/releases/tag/2.4.0)?
-- [ ] Tried fish without third-party customizations *(check `sh -c 'env HOME=$(mktemp -d) fish'`)*?
-
-**fish version installed** *(`fish --version`)*:
-
-**OS/terminal used**: 
-
-Talk about the the issue here. 
-
-## Reproduction steps
-1. step one
-2. …
-
-<!-- Hard to explain? Post a screen recording on asciinema.org then link it here -->
-
-## Results
-```console
-~ $ math 2 + 2
-5
-```

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,10 +0,0 @@
-## Description
-
-Talk about your changes here.
-
-Fixes issue #
-
-## TODOs:
-<!-- Just check off what what we know been done so far. We can help you with this stuff. -->
-- [ ] Changes to fish usage are reflected in user documenation/manpages.
-- [ ] Tests have been added for regressions fixed

.gitignore

@@ -1,99 +1,34 @@
-# Note that some of the patterns below should be in an individual's
-# ~/.config/git/ignore file. For example, ".DS_Store" from people working on
-# MacOS.
-
-# File extensions that should never be checked in regardless of which project
-# directory they reside in.
-*.exe
-*.app
-*.out
-*.so
-*.dylib
-*.dll
-*.lai
-*.la
-*.a
-*.lib
 *.o
-*.obj
-*.lo
-*.slo
-*.d
-*.gch
-*.pch
-*.xccheckout
 *~
-*~HEAD
-*bak
-*.new
-*.orig
-*.log
-.Trash-*
-*.DS_Store
-.AppleDouble
-.LSOverride
-._*
-Thumbs.db
-ehthumbs.db
-Desktop.ini
 
-
-# These file names can appear anywhere in the hierarchy. They tend to be OS
-# or build system artifacts.
-autom4te.cache
-aclocal.m4
+Doxyfile.help
 Makefile
+autom4te.cache/
+build/
+command_list.txt
+confdefs.h
 config.h
-config.cache
 config.h.in
+config.log
 config.status
 configure
-messages.pot
-.directory
-.fuse_hidden*
-
-
-# Directories that only contain transitory files from building and testing.
-/doc/
-/obj/
-/share/man/
-/share/doc/
-/test/
-/user_doc/
-
-# File names that can appear in the project root that represent artifacts from
-# building and testing.
-/FISH-BUILD-VERSION-FILE
-/command_list.txt
-/command_list_toc.txt
-/compile_commands.json
-/confdefs.h
-/doc.h
-/fish
-/fish.pc
-/fish_indent
-/fish_key_reader
-/fish_tests
-/lexicon.txt
-/lexicon_filter
-/toc.txt
-/version
-
-# File names that can appear below the project root that represent artifacts
-# from building and testing.
-/doc_src/commands.hdr
-/doc_src/index.hdr
-/po/*.gmo
-/share/__fish_build_paths.fish
-/tests/*.tmp.*
-/share/pkgconfig
-
-# xcode 
-## Build generated
-build/
-DerivedData/
-xcuserdata/
-*.moved-aside
-*.xccheckout
-*.xcscmblueprin
-
+doc.h
+doc_src/commands.hdr
+doc_src/index.hdr
+po/*.gmo
+fish
+fish.spec
+fish_indent
+fish_pager
+fish_tests
+fishd
+mimedb
+seq
+set_color
+share/config.fish
+share/man/
+toc.txt
+user_doc/
+xcuserdata
+tests/*tmp.*
+tests/foo.txt

.oclint

@@ -1,67 +0,0 @@
-rules:
-rule-configurations:
-    #
-    # This is the default value (as of the time I wrote this) but I'm making
-    # it explicit since it needs to agree with the value used by clang-format.
-    # Thus, if we ever change the fish style to allow longer or shorter lines
-    # this should be changed (as well as the corresponding .clang-format file).
-    #
-    - key: LONG_LINE
-      value: 100
-    #
-    # The default limit for the length of variable names is 20. Long names are
-    # problematic but twenty chars results in way too many errors. So increase
-    # the limit to something more reasonable.
-    #
-    - key: LONG_VARIABLE_NAME
-      value: 30
-    #
-    # This allows us to avoid peppering our code with inline comments such as
-    #
-    #   scoped_lock locker(m_lock);  //!OCLINT(side-effect)
-    #
-    # Specifically, this config key tells oclint that the named classes have
-    # RAII behavior so the local vars are actually used.
-    #
-    - key: RAII_CUSTOM_CLASSES
-      value: scoped_lock scoped_buffer_t builtin_commandline_scoped_transient_t scoped_push
-
-disable-rules:
-    #
-    # A few instances of "useless parentheses" errors are meaningful. Mostly
-    # in the context of the `return` statement. Unfortunately the vast
-    # majority would result in removing parentheses that decreases
-    # readability. So we're going to ignore this warning and rely on humans to
-    # notice when the parentheses are truly not needed.
-    #
-    # Also, some macro expansions, such as FD_SET(), trigger this warning and
-    # we don't want to suppress each of those individually.
-    #
-    - UselessParentheses
-    #
-    # OCLint wants variable names to be at least three characters in length.
-    # Which would be fine if it supported a reasonable set of exceptions
-    # (e.g., "i", "j", "k") and allowed adding additional exceptions to match
-    # conventions employed by a project. Since it doesn't, and thus generates
-    # a lot of really annoying warnings, we're going to disable this rule.
-    #
-    - ShortVariableName
-    #
-    # This rule flags perfectly reasonable conditions like `if (!some_condition)`
-    # and is therefore just noise. Disable this rule.
-    #
-    - InvertedLogic
-    #
-    # The idea behind the "double negative" rule is sound since constructs
-    # like "!!(var & flag)" should be written as "static_cast<bool>(var &
-    # flag)". Unfortunately this rule has way too many false positives;
-    # especially in the context of assert statements. So disable this rule.
-    #
-    - DoubleNegative
-    #
-    # Avoiding bitwise operators in a conditional is a good idea with one
-    # exception: testing whether a bit flag is set. Which happens to be the
-    # only time you'll see something like `if (j->flags & JOB_CONSTRUCTED)`
-    # in fish source.
-    #
-    - BitwiseOperatorInConditional

.travis.yml

@@ -1,76 +0,0 @@
-language: cpp
-dist: trusty
-sudo: required
-
-matrix:
-  include:
-    - os: linux
-      compiler: gcc
-      addons:
-        apt:
-          packages:
-            - bc
-            - expect
-            - gettext
-            - libncurses5-dev
-    - os: linux
-      compiler: gcc
-      addons:
-        apt:
-          packages:
-            - bc
-            - expect
-            - gettext
-            - lib32ncurses5-dev
-            - g++-multilib
-      env:
-        - CXXFLAGS="-g -m32" CFLAGS="-g -m32"
-    - os: linux
-      compiler: clang
-      env:
-          - CXXFLAGS="-g -fno-omit-frame-pointer -fsanitize=address" ASAN_OPTIONS=check_initialization_order=1:detect_stack_use_after_return=1:detect_leaks=1
-      before_install: export CXX=clang++-3.8
-      addons:
-        apt:
-          sources:
-            - llvm-toolchain-precise-3.8
-            - ubuntu-toolchain-r-test
-          packages:
-            - clang-3.8
-            - llvm-3.8 # for llvm-symbolizer
-            - bc
-            - expect
-            - gettext
-            - libncurses5-dev
-    - os: osx
-      osx_image: xcode8
-      before_install:
-        - brew update
-        - brew install pcre2 # use system PCRE2
-        - brew outdated xctool || brew upgrade xctool # for xcode... soon.
-      env:
-        - CXXFLAGS="-g -lstdc++"
-  fast_finish: true
-
-script:
-  - autoreconf
-  - ./configure --prefix=$HOME/prefix || cat config.log
-  - make -j2
-  - make install
-  - make test DESTDIR=$HOME/prefix/ SHOW_INTERACTIVE_LOG=1
-
-notifications:
-  # Some items are encrypted so that notifications from other repositories
-  # don't flood the official repositories.
-  irc:
-    channels:
-        #- "irc.oftc.net#fish"
-        secure: "eRk9KGZ5+mrlD2SoI8yg2Sp8OYrh7YPyGe3WCDQUwTnNgNDII34rbM9a6UOA/l7AeWSNY8joLq5xVLCU4wpFgUcJ11SYIpMnLosZK29OW4ubDOHmdBDvJ971rLgAVG9cXngZtIxEVVxN/jnS1Qr8GKZx4DjkaTMgz1pemb4WxCc="
-    template:
-      - "%{repository}#%{build_number} (%{commit} on %{branch} by %{author}): %{message} Details at %{build_url}"
-    use_notice: true
-    skip_join: true
-  webhooks:
-    urls:
-      #- https://webhooks.gitter.im/e/61821cec3015bf0f8bb1
-      secure: fPfOmxnC3MCsfR1oocVFeWLawGcRZkn+8fNHlSOeZ+SqqoZfcCHgQTvQ22TqmVl1yvkXbNlaXjo6dbVzTOAh7r7H0bRMEKBVh3dQS7wqjB1sKivpXd8PAS3BTj5MQpGeJzdHnDuwVlwDktGtfHfhGeq1Go/4IosOq8u+6RTe28g=

CHANGELOG

@@ -0,0 +1,3 @@
+24-01-2012 Jan Kanis
+  * Added a changelog file
+  * removed unescaping if the 'commandline' builtin is called without the -o (tokenise) flag

CHANGELOG.md

@@ -1,567 +0,0 @@
-# fish 2.5b1 (released January 14, 2017)
-
-## Platform Changes
-
-Starting with version 2.5, fish requires a more up-to-date version of C++, specifically C++11 (from 2011). This affects some older platforms:
-
-### Linux
-
-For users building from source, GCC's g++ 4.8 or later, or LLVM's clang 3.3 or later, are known to work. Older platforms may require a newer compiler installed.
-
-Unfortunately, because of the complexity of the toolchain, binary packages are no longer published by the fish-shell developers for the following platforms:
-
- - Red Hat Enterprise Linux and CentOS 5 & 6 for 64-bit builds
- - Ubuntu 12.04 (EoLTS April 2017)
- - Debian 7 (EoLTS May 2018)
-
-Installing newer version of fish on these systems will require building from source.
-
-### OS X SnowLeopard
-
-Starting with version 2.5, fish requires a C++11 standard library on OS X 10.6 ("SnowLeopard"). If this library is not installed, you will see this error: `dyld: Library not loaded: /usr/lib/libc++.1.dylib`
-
-MacPorts is the easiest way to obtain this library. After installing the SnowLeopard MacPorts release from the install page, run:
-
-```
-sudo port -v install libcxx
-```
-
-Now fish should launch successfully. (Please open an issue if it does not.)
-
-This is only necessary on 10.6. OS X 10.7 and later include the required library by default.
-
-## Other significant changes
-
-- Attempting to exit with running processes in the background produces a warning, then signals them to terminate if a second attempt to exit is made. This brings the behaviour for running background processes into line with stopped processes. (#3497)
-- `random` can now have start, stop and step values specified, or the new `choice` subcommand can be used to pick an argument from a list (#3619).
-- A new key bindings preset, `fish_hybrid_key_bindings`, including all the Emacs-style and Vi-style bindings, which behaves like `fish_vi_key_bindings` in fish 2.3.0 (#3556).
-- `function` now returns an error when called with invalid options, rather than defining the function anyway (#3574). This was a regression present in fish 2.3 and 2.4.0.
-- fish no longer prints a warning when it identifies a running instance of an old version (2.1.0 and earlier). Changes to universal variables may not propagate between these old versions and 2.5b1.
-- Improved compatiblity with Android (#3585), MSYS/mingw (#2360), Solaris (#3456, #3340)
-- Like other shells, the `test` builting now returns an error for numeric operations on invalid integers (#3346, #3581).
-- `complete` no longer recognises `--authoritative` and `--unauthoritative` options, and they are marked as obsolete.
-- `status` accepts subcommands, and should be used like `status is-interactive`. The old options continue to be supported for the foreseeable future (#3526), although only one subcommand or option can be specified at a time.
-- Selection mode (used with "begin-selection") no longer selects a character the cursor does not move over (#3684).
-- List indexes are handled better, and a bit more liberally in some cases (`echo $PATH[1 .. 3]` is now valid) (#3579).
-- The `fish_mode_prompt` function is now simply a stub around `fish_default_mode_prompt`, which allows the mode prompt to be included more easily in customised prompt functions (#3641).
-
-## Notable fixes and improvements
-- `alias`, run without options or arguments, lists all defined aliases, and aliases now include a description in the function signature that identifies them.
-- `complete` accepts empty strings as descriptions (#3557).
-- `command` accepts `-q`/`--quiet` in combination with `--search` (#3591), providing a simple way of checking whether a command exists in scripts.
-- Abbreviations can now be renamed with `abbr --rename OLD_KEY NEW_KEY` (#3610).
-- The command synopses printed by `--help` options work better with copying and pasting (#2673).
-- `help` launches the browser specified by the `$fish_help_browser variable` if it is set (#3131).
-- History merging could lose items under certain circumstances and is now fixed (#3496).
-- The `$status` variable is now set to 123 when a syntactically invalid command is entered (#3616).
-- Exiting fish now signals all background processes to terminate, not just stopped jobs (#3497).
-- A new `prompt_hostname` function which prints a hostname suitable for use in prompts (#3482).
-- The `__fish_man_page` function (bound to Alt-h by default) now tries to recognize subcommands (e.g. `git add` will now open the "git-add" man page) (#3678).
-- A new function `edit_command_buffer` (bound to Alt-e & Alt-v by default) to edit the command buffer in an external editor (#1215, #3627).
-- `set_color` now supports italics (`--italics`), dim (`--dim`) and reverse (`--reverse`) modes (#3650).
-- Filesystems with very slow locking (eg incorrectly-configured NFS) will no longer slow fish down (#685).
-- Improved completions for `apt` (#3695), `fusermount` (#3642), `make` (#3628), `netctl-auto` (#3378), `nmcli` (#3648), `pygmentize` (#3378), and `tar` (#3719).
-- Added completions for:
- - `VBoxHeadless` (#3378)
- - `VBoxSDL` (#3378)
- - `base64` (#3378)
- - `caffeinate` (#3524)
- - `dconf` (#3638)
- - `dig` (#3495)
- - `dpkg-reconfigure` (#3521 & #3522)
- - `feh` (#3378)
- - `launchctl` (#3682)
- - `lxc` (#3554 & #3564),
- - `mddiagnose` (#3524)
- - `mdfind` (#3524)
- - `mdimport`  (#3524)
- - `mdls` (#3524)
- - `mdutil` (#3524)
- - `mkvextract` (#3492)
- - `nvram` (#3524)
- - `objdump` (#3378)
- - `sysbench` (#3491)
- - `tmutil` (#3524)
-
----
-
-# fish 2.4.0 (released November 8, 2016)
-
-There are no major changes between 2.4b1 and 2.4.0.
-
-## Notable fixes and improvements
-- The documentation is now generated properly and with the correct version identifier.
-- Automatic cursor changes are now only enabled on the subset of XTerm versions known to support them, resolving a problem where older versions printed garbage to the terminal before and after every prompt (#3499).
-- Improved the title set in Apple Terminal.app.
-- Added completions for `defaults` and improved completions for `diskutil` (#3478).
-
----
-
-# fish 2.4b1 (released October 18, 2016)
-
-## Significant changes
-- The clipboard integration has been revamped with explicit bindings. The killring commands no longer copy from, or paste to, the X11 clipboard - use the new copy (`C-x`) and paste (`C-v`) bindings instead. The clipboard is now available on OS X as well as systems using X11 (e.g. Linux). (#3061)
-- `history` uses subcommands (`history delete`) rather than options (`history --delete`) for its actions (#3367). You can no longer specify multiple actions via flags (e.g., `history --delete --save something`).
-- New `history` options have been added, including `--max=n` to limit the number of history entries, `--show-time` option to show timestamps (#3175, #3244), and `--null` to null terminate history entries in the search output.
-- `history search` is now case-insensitive by default (which also affects `history delete`) (#3236).
-- `history delete` now correctly handles multiline commands (#31).
-- Vi-style bindings no longer include all of the default emacs-style bindings; instead, they share some definitions (#3068).
-- If there is no locale set in the environment, various known system configuration files will be checked for a default. If no locale can be found, `en_US-UTF.8` will be used (#277).
-- A number followed by a caret (e.g. `5^`) is no longer treated as a redirection (#1873).
-- The `$version` special variable can be overwritten, so that it can be used for other purposes if required.
-
-## Notable fixes and improvements
-- The `fish_realpath` builtin has been renamed to `realpath` and made compatible with GNU `realpath` when run without arguments (#3400). It is used only for systems without a `realpath` or `grealpath` utility (#3374).
-- Improved color handling on terminals/consoles with 8-16 colors, particularly the use of bright named color (#3176, #3260).
-- `fish_indent` can now read from files given as arguments, rather than just standard input (#3037).
-- Fuzzy tab completions behave in a less surprising manner (#3090, #3211).
-- `jobs` should only print its header line once (#3127).
-- Wildcards in redirections are highlighted appropriately (#2789).
-- Suggestions will be offered more often, like after removing characters (#3069).
-- `history --merge` now correctly interleaves items in chronological order (#2312).
-- Options for `fish_indent` have been aligned with the other binaries - in particular, `-d` now means `--debug`. The `--dump` option has been renamed to `--dump-parse-tree` (#3191).
-- The display of bindings in the Web-based configuration has been greatly improved (#3325), as has the rendering of prompts (#2924).
-- fish should no longer hang using 100% CPU in the C locale (#3214).
-- A bug in FreeBSD 11 & 12, Dragonfly BSD & illumos prevented fish from working correctly on these platforms under UTF-8 locales; fish now avoids the buggy behaviour (#3050).
-- Prompts which show git repository information (via `__fish_git_prompt`) are faster in large repositories (#3294) and slow filesystems (#3083).
-- fish 2.3.0 reintroduced a problem where the greeting was printed even when using `read`; this has been corrected again (#3261).
-- Vi mode changes the cursor depending on the current mode (#3215).
-- Command lines with escaped space characters at the end tab-complete correctly (#2447).
-- Added completions for:
-  - `arcanist` (#3256)
-  - `connmanctl` (#3419)
-  - `figlet` (#3378)
-  - `mdbook` (#3378)
-  -  `ninja` (#3415)
-  -  `p4`, the Perforce client (#3314)
-  -  `pygmentize` (#3378)
-  -  `ranger` (#3378)
-- Improved completions for `aura` (#3297), `abbr` (#3267), `brew` (#3309), `chown` (#3380, #3383),`cygport` (#3392), `git` (#3274, #3226, #3225, #3094, #3087, #3035, #3021, #2982, #3230), `kill` & `pkill` (#3200), `screen` (#3271), `wget` (#3470), and `xz` (#3378).
-- Distributors, packagers and developers will notice that the build process produces more succinct output by default; use `make V=1` to get verbose output (#3248).
-- Improved compatibility with minor platforms including musl (#2988), Cygwin (#2993), Android (#3441, #3442), Haiku (#3322) and Solaris .
-
----
-
-# fish 2.3.1 (released July 3, 2016)
-
-This is a functionality and bugfix release. This release does not contain all the changes to fish since the last release, but fixes a number of issues directly affecting users at present and includes a small number of new features.
-
-## Significant changes
-- A new `fish_key_reader` binary for decoding interactive keypresses (#2991).
-- `fish_mode_prompt` has been updated to reflect the changes in the way the Vi input mode is set up (#3067), making this more reliable.
-- `fish_config` can now properly be launched from the OS X app bundle (#3140).
-
-## Notable fixes and improvements
-
-- Extra lines were sometimes inserted into the output under Windows (Cygwin and Microsoft Windows Subsystem for Linux) due to TTY timestamps not being updated (#2859).
-- The `string` builtin's `match` mode now handles the combination of `-rnv` (match, invert and count) correctly (#3098).
-- Improvements to TTY special character handling (#3064), locale handling (#3124) and terminal environment variable handling (#3060).
-- Work towards handling the terminal modes for external commands launched from initialisation files (#2980).
-- Ease the upgrade path from fish 2.2.0 and before by warning users to restart fish if the `string` builtin is not available (#3057).
-- `type -a` now syntax-colorizes function source output.
-- Added completions for `alsamixer`, `godoc`, `gofmt`, `goimports`, `gorename`, `lscpu`, `mkdir`, `modinfo`, `netctl-auto`, `poweroff`, `termite`, `udisksctl` and `xz` (#3123).
-- Improved completions for `apt` (#3097), `aura` (#3102),`git` (#3114), `npm` (#3158), `string` and `suspend` (#3154).
-
----
-
-# fish 2.3.0 (released May 20, 2016)
-
-There are no significant changes between 2.3.0 and 2.3b2.
-
-## Other notable fixes and improvements
-
-- `abbr` now allows non-letter keys (#2996).
-- Define a few extra colours on first start (#2987).
-- Multiple documentation updates.
-- Added completions for rmmod (#3007).
-- Improved completions for git (#2998).
-
-## Known issues
-
-- Interactive commands started from fish configuration files or from the `-c` option may, under certain circumstances, be started with incorrect terminal modes and fail to behave as expected. A fix is planned but requires further testing (#2619).
-
----
-
-# fish 2.3b2 (released May 5, 2016)
-
-## Significant changes
-
-- A new `fish_realpath` builtin and associated function to allow the use of `realpath` even on those platforms that don't ship an appropriate command (#2932).
-- Alt-# toggles the current command line between commented and uncommented states, making it easy to save a command in history without executing it.
-- The `fish_vi_mode` function is now deprecated in favour of `fish_vi_key_bindings`.
-
-## Other notable fixes and improvements
-
-- Fix the build on Cygwin (#2952) and RedHat Enterprise Linux/CentOS 5 (#2955).
-- Avoid confusing the terminal line driver with non-printing characters in `fish_title` (#2453).
-- Improved completions for busctl, git (#2585, #2879, #2984), and netctl.
-
----
-
-# fish 2.3b1 (released April 19, 2016)
-
-## Significant Changes
-
-- A new `string` builtin to handle... strings! This builtin will measure, split, search and replace text strings, including using regular expressions. It can also be used to turn lists into plain strings using `join`. `string` can be used in place of `sed`, `grep`, `tr`, `cut`, and `awk` in many situations. (#2296)
-- Allow using escape as the Meta modifier key, by waiting after seeing an escape character wait up to 300ms for an additional character. This is consistent with readline (e.g. bash) and can be configured via the `fish_escape_delay_ms variable`. This allows using escape as the Meta modifier. (#1356)
-- Add new directories for vendor functions and configuration snippets (#2500)
-- A new `fish_realpath` builtin and associated `realpath` function should allow scripts to resolve path names via `realpath` regardless of whether there is an external command of that name; albeit with some limitations. See the associated documentation.
-
-## Backward-incompatible changes
-
-- Unmatched globs will now cause an error, except when used with `for`, `set` or `count` (#2719)
-- `and` and `or` will now bind to the closest `if` or `while`, allowing compound conditions without `begin` and `end` (#1428)
-- `set -ql` now searches up to function scope for variables (#2502)
-- `status -f` will now behave the same when run as the main script or using `source` (#2643)
-- `source` no longer puts the file name in `$argv` if no arguments are given (#139)
-- History files are stored under the `XDG_DATA_HOME` hierarchy (by default, in `~/.local/share`), and existing history will be moved on first use (#744)
-
-## Other notable fixes and improvements
-
-- Fish no longer silences errors in config.fish (#2702)
-- Directory autosuggestions will now descend as far as possible if there is only one child directory (#2531)
-- Add support for bright colors (#1464)
-- Allow Ctrl-J (\cj) to be bound separately from Ctrl-M (\cm) (#217)
-- psub now has a "-s"/"–suffix" option to name the temporary file with that suffix
-- Enable 24-bit colors on select terminals (#2495)
-- Support for SVN status in the prompt (#2582)
-- Mercurial and SVN support have been added to the Classic + Git (now Classic + VCS) prompt (via the new \__fish_vcs_prompt function) (#2592)
-- export now handles variables with a "=" in the value (#2403)
-- New completions for:
-    -   alsactl
-    -   Archlinux's asp, makepkg
-    -   Atom's apm (#2390)
-    -   entr - the "Event Notify Test Runner" (#2265)
-    -   Fedora's dnf (#2638)
-    -   OSX diskutil (#2738)
-    -   pkgng (#2395)
-    -   pulseaudio's pacmd and pactl
-    -   rust's rustc and cargo (#2409)
-    -   sysctl (#2214)
-    -   systemd's machinectl (#2158), busctl (#2144), systemd-nspawn, systemd-analyze, localectl, timedatectl
-    -   and more
-- Fish no longer has a function called sgrep, freeing it for user customization (#2245)
-- A rewrite of the completions for cd, fixing a few bugs (#2299, #2300, #562)
-- Linux VTs now run in a simplified mode to avoid issues (#2311)
-- The vi-bindings now inherit from the emacs bindings
-- Fish will also execute `fish_user_key_bindings` when in vi-mode
-- `funced` will now also check $VISUAL (#2268)
-- A new `suspend` function (#2269)
-- Subcommand completion now works better with split /usr (#2141)
-- The command-not-found-handler can now be overridden by defining a function called `__fish_command_not_found_handler` in config.fish (#2332)
-- A few fixes to the Sorin theme
-- PWD shortening in the prompt can now be configured via the `fish_prompt_pwd_dir_length` variable, set to the length per path component (#2473)
-- fish no longer requires `/etc/fish/config.fish` to correctly start, and now ships a skeleton file that only contains some documentation (#2799)
-
----
-
-# fish 2.2.0 (released July 12, 2015)
-
-### Significant changes ###
-
- * Abbreviations: the new `abbr` command allows for interactively-expanded abbreviations, allowing quick access to frequently-used commands (#731).
- * Vi mode: run `fish_vi_mode` to switch fish into the key bindings and prompt familiar to users of the Vi editor (#65).
- * New inline and interactive pager, which will be familiar to users of zsh (#291).
- * Underlying architectural changes: the `fishd` universal variable server has been removed as it was a source of many bugs and security problems. Notably, old fish sessions will not be able to communicate universal variable changes with new fish sessions. For best results, restart all running instances of `fish`.
- * The web-based configuration tool has been redesigned, featuring a prompt theme chooser and other improvements.
- * New German, Brazilian Portuguese, and Chinese translations.
-
-### Backward-incompatible changes ###
-
-These are kept to a minimum, but either change undocumented features or are too hard to use in their existing forms. These changes may break existing scripts.
-
- * `commandline` no longer interprets functions "in reverse", instead behaving as expected (#1567).
- * The previously-undocumented `CMD_DURATION` variable is now set for all commands and contains the execution time of the last command in milliseconds (#1585). It is no longer exported to other commands (#1896).
- * `if` / `else` conditional statements now return values consistent with the Single Unix Specification, like other shells (#1443).
- * A new "top-level" local scope has been added, allowing local variables declared on the commandline to be visible to subsequent commands. (#1908)
-
-### Other notable fixes and improvements ###
-
- * New documentation design (#1662), which requires a Doxygen version 1.8.7 or newer to build.
- * Fish now defines a default directory for other packages to provide completions. By default this is `/usr/share/fish/vendor-completions.d`; on systems with `pkgconfig` installed this path is discoverable with `pkg-config --variable completionsdir fish`.
- * A new parser removes many bugs; all existing syntax should keep working.
- * New `fish_preexec` and `fish_postexec` events are fired before and after job execution respectively (#1549).
- * Unmatched wildcards no longer prevent a job from running. Wildcards used interactively will still print an error, but the job will proceed and the wildcard will expand to zero arguments (#1482).
- * The `.` command is deprecated and the `source` command is preferred (#310).
- * `bind` supports "bind modes", which allows bindings to be set for a particular named mode, to support the implementation of Vi mode.
- * A new `export` alias, which behaves like other shells (#1833).
- * `command` has a new `--search` option to print the name of the disk file that would be executed, like other shells' `command -v` (#1540).
- * `commandline` has a new `--paging-mode` option to support the new pager.
- * `complete` has a new `--wraps` option, which allows a command to (recursively) inherit the completions of a wrapped command (#393), and `complete -e` now correctly erases completions (#380).
- * Completions are now generated from manual pages by default on the first run of fish (#997).
- * `fish_indent` can now produce colorized (`--ansi`) and HTML (`--html`) output (#1827).
- * `functions --erase` now prevents autoloaded functions from being reloaded in the current session.
- * `history` has a new `--merge` option, to incorporate history from other sessions into the current session (#825).
- * `jobs` returns 1 if there are no active jobs (#1484).
- * `read` has several new options:
-  * `--array` to break input into an array (#1540)
-  * `--null` to break lines on NUL characters rather than newlines (#1694)
-  * `--nchars` to read a specific number of characters (#1616)
-  * `--right-prompt` to display a right-hand-side prompt during interactive read (#1698).
- * `type` has a new `-q` option to suppress output (#1540 and, like other shells, `type -a` now prints all matches for a command (#261).
- * Pressing F1 now shows the manual page for the current command (#1063).
- * `fish_title` functions have access to the arguments of the currently running argument as `$argv[1]` (#1542).
- * The OS command-not-found handler is used on Arch Linux (#1925), nixOS (#1852), openSUSE and Fedora (#1280).
- * `Alt`+`.` searches backwards in the token history, mapping to the same behavior as inserting the last argument of the previous command, like other shells (#89).
- * The `SHLVL` environment variable is incremented correctly (#1634 & #1693).
- * Added completions for `adb` (#1165 & #1211), `apt` (#2018), `aura` (#1292), `composer` (#1607), `cygport` (#1841), `dropbox` (#1533), `elixir` (#1167), `fossil`, `heroku` (#1790), `iex` (#1167), `kitchen` (#2000), `nix` (#1167), `node`/`npm` (#1566), `opam` (#1615), `setfacl` (#1752), `tmuxinator` (#1863), and `yast2` (#1739).
- * Improved completions for `brew` (#1090 & #1810), `bundler` (#1779), `cd` (#1135), `emerge` (#1840),`git` (#1680, #1834 & #1951), `man` (#960), `modprobe` (#1124), `pacman` (#1292), `rpm` (#1236), `rsync` (#1872), `scp` (#1145), `ssh` (#1234), `sshfs` (#1268), `systemctl` (#1462, #1950 & #1972), `tmux` (#1853), `vagrant` (#1748), `yum` (#1269), and `zypper` (#1787).
-
----
-
-# fish 2.1.2  (released Feb 24, 2015)
-
-fish 2.1.2 contains a workaround for a filesystem bug in Mac OS X Yosemite. #1859
-
-Specifically, after installing fish 2.1.1 and then rebooting, "Verify Disk" in Disk Utility will report "Invalid number of hard links." We don't have any reports of data loss or other adverse consequences. fish 2.1.2 avoids triggering the bug, but does not repair an already affected filesystem. To repair the filesystem, you can boot into Recovery Mode and use Repair Disk from Disk Utility. Linux and versions of OS X prior to Yosemite are believed to be unaffected.
-
-There are no other changes in this release.
-
----
-
-# fish 2.1.1 (released September 26, 2014)
-
-__Important:__ if you are upgrading, stop all running instances of `fishd` as soon as possible after installing this release; it will be restarted automatically. On most systems, there will be no further action required. Note that some environments (where `XDG_RUNTIME_DIR` is set), such as Fedora 20, will require a restart of all running fish processes before universal variables work as intended.
-
-Distributors are highly encouraged to call `killall fishd`, `pkill fishd` or similar in installation scripts, or to warn their users to do so.
-
-### Security fixes
- * The fish_config web interface now uses an authentication token to protect requests and only responds to requests from the local machine with this token, preventing a remote code execution attack. (closing CVE-2014-2914). #1438
- * `psub` and `funced` are no longer vulnerable to attacks which allow local privilege escalation and data tampering (closing CVE-2014-2906 and CVE-2014-3856). #1437
- * `fishd` uses a secure path for its socket, preventing a local privilege escalation attack (closing CVE-2014-2905). #1436
- * `__fish_print_packages` is no longer vulnerable to attacks which would allow local privilege escalation and data tampering (closing CVE-2014-3219). #1440
-
-### Other fixes
- * `fishd` now ignores SIGPIPE, fixing crashes using tools like GNU Parallel and which occurred more often as a result of the other `fishd` changes. #1084 & #1690
-
----
-
-# fish 2.1.0
-
-Significant Changes
--------------------
-
-* **Tab completions will fuzzy-match files.** #568
-
-  When tab-completing a file, fish will first attempt prefix matches (`foo` matches `foobar`), then substring matches (`ooba` matches `foobar`), and lastly subsequence matches (`fbr` matches `foobar`). For example, in a directory with files foo1.txt, foo2.txt, foo3.txt…, you can type only the numeric part and hit tab to fill in the rest.
-
-  This feature is implemented for files and executables. It is not yet implemented for options (like `--foobar`), and not yet implemented across path components (like `/u/l/b` to match `/usr/local/bin`).
-
-* **Redirections now work better across pipelines.** #110, #877
-
-  In particular, you can pipe stderr and stdout together, for example, with `cmd ^&1 | tee log.txt`, or the more familiar `cmd 2>&1 | tee log.txt`.
-
-* **A single `%` now expands to the last job backgrounded.** #1008
-
-  Previously, a single `%` would pid-expand to either all backgrounded jobs, or all jobs owned by your user. Now it expands to the last job backgrounded. If no job is in the background, it will fail to expand. In particular, `fg %` can be used to put the most recent background job in the foreground.
-
-Other Notable Fixes
--------------------
-
-* alt-U and alt+C now uppercase and capitalize words, respectively. #995
-
-* VTE based terminals should now know the working directory. #906
-
-* The autotools build now works on Mavericks. #968
-
-* The end-of-line binding (ctrl+E) now accepts autosuggestions. #932
-
-* Directories in `/etc/paths` (used on OS X) are now prepended instead of appended, similar to other shells. #927
-
-* Option-right-arrow (used for partial autosuggestion completion) now works on iTerm2. #920
-
-* Tab completions now work properly within nested subcommands. #913
-
-* `printf` supports \e, the escape character. #910
-
-* `fish_config history` no longer shows duplicate items. #900
-
-* `$fish_user_paths` is now prepended to $PATH instead of appended. #888
-
-* Jobs complete when all processes complete. #876
-
-
-  For example, in previous versions of fish, `sleep 10 | echo Done` returns control immediately, because echo does not read from stdin. Now it does not complete until sleep exits (presumably after 10 seconds).
-
-* Better error reporting for square brackets. #875
-
-* fish no longer tries to add `/bin` to `$PATH` unless PATH is totally empty. #852
-
-* History token substitution (alt-up) now works correctly inside subshells. #833
-
-* Flow control is now disabled, freeing up ctrl-S and ctrl-Q for other uses. #814
-
-* sh-style variable setting like `foo=bar` now produces better error messages. #809
-
-* Commands with wildcards no longer produce autosuggestions. #785
-
-* funced no longer freaks out when supplied with no arguments. #780
-
-* fish.app now works correctly in a directory containing spaces. #774
-
-* Tab completion cycling no longer occasionally fails to repaint. #765
-
-* Comments now work in eval'd strings. #684
-
-* History search (up-arrow) now shows the item matching the autosuggestion, if that autosuggestion was truncated. #650
-
-* Ctrl-T now transposes characters, as in other shells. #128
-
----
-
-# fish 2.0.0
-
-Significant Changes
--------------------
-
-* **Command substitutions now modify `$status` #547.**
-  Previously the exit status of command substitutions (like `(pwd)`) was ignored; however now it modifies $status. Furthermore, the `set` command now only sets $status on failure; it is untouched on success. This allows for the following pattern:
-
-  ```sh
-  if set python_path (which python)
-     ...
-  end
-  ```
-  Because set does not modify $status on success, the if branch effectively tests whether `which` succeeded, and if so, whether the `set` also succeeded.
-* **Improvements to $PATH handling.**
-    * There is a new variable, `$fish_user_paths`, which can be set universally, and whose contents are appended to $PATH #527
-    * /etc/paths and /etc/paths.d are now respected on OS X
-    * fish no longer modifies $PATH to find its own binaries
-* **Long lines no longer use ellipsis for line breaks**, and copy and paste
-  should no longer include a newline even if the line was broken #300
-* **New syntax for index ranges** (sometimes known as "slices") #212
-* **fish now supports an `else if` statement** #134
-* **Process and pid completion now works on OS X** #129
-* **fish is now relocatable**, and no longer depends on compiled-in paths #125
-* **fish now supports a right prompt (RPROMPT)** through the fish_right_prompt function #80
-* **fish now uses posix_spawn instead of fork when possible**, which is much faster on BSD and OS X #11
-
-Other Notable Fixes
--------------------
-
-* Updated VCS completions (darcs, cvs, svn, etc.)
-* Avoid calling getcwd on the main thread, as it can hang #696
-* Control-D (forward delete) no longer stops at a period #667
-* Completions for many new commands
-* fish now respects rxvt's unique keybindings #657
-* xsel is no longer built as part of fish. It will still be invoked if installed separately #633
-* __fish_filter_mime no longer spews #628
-* The --no-execute option to fish no longer falls over when reaching the end of a block #624
-* fish_config knows how to find fish even if it's not in the $PATH #621
-* A leading space now prevents writing to history, as is done in bash and zsh #615
-* Hitting enter after a backslash only goes to a new line if it is followed by whitespace or the end of the line #613
-* printf is now a builtin #611
-* Event handlers should no longer fire if signals are blocked #608
-* set_color is now a builtin #578
-* man page completions are now located in a new generated_completions directory, instead of your completions directory #576
-* tab now clears autosuggestions #561
-* tab completion from within a pair of quotes now attempts to "appropriate" the closing quote #552
-* $EDITOR can now be a list: for example, `set EDITOR gvim -f`) #541
-* `case` bodies are now indented #530
-* The profile switch `-p` no longer crashes #517
-* You can now control-C out of `read` #516
-* `umask` is now functional on OS X #515
-* Avoid calling getpwnam on the main thread, as it can hang #512
-* Alt-F or Alt-right-arrow (Option-F or option-right-arrow) now accepts one word of an autosuggestion #435
-* Setting fish as your login shell no longer kills OpenSUSE #367
-* Backslashes now join lines, instead of creating multiple commands #347
-* echo now implements the -e flag to interpret escapes #337
-* When the last token in the user's input contains capital letters, use its case in preference to that of the autosuggestion #335
-* Descriptions now have their own muted color #279
-* Wildcards beginning with a . (for example, `ls .*`) no longer match . and .. #270
-* Recursive wildcards now handle symlink loops #268
-* You can now delete history items from the fish_config web interface #250
-* The OS X build now weak links `wcsdup` and `wcscasecmp` #240
-* fish now saves and restores the process group, which prevents certain processes from being erroneously reported as stopped #197
-* funced now takes an editor option #187
-* Alternating row colors are available in fish pager through `fish_pager_color_secondary` #186
-* Universal variable values are now stored based on your MAC address, not your hostname #183
-* The caret ^ now only does a stderr redirection if it is the first character of a token, making git users happy #168
-* Autosuggestions will no longer cause line wrapping #167
-* Better handling of Unicode combining characters #155
-* fish SIGHUPs processes more often #138
-* fish no longer causes `sudo` to ask for a password every time
-* fish behaves better under Midnight Commander #121
-* `set -e` no longer crashes #100
-* fish now will automatically import history from bash, if there is no fish history #66
-* Backslashed-newlines inside quoted strings now behave more intuitively #52
-* Tab titles should be shown correctly in iTerm2 #47
-* scp remote path completion now sometimes works #42
-* The `read` builtin no longer shows autosuggestions #29
-* Custom key bindings can now be set via the `fish_user_key_bindings` function #21
-* All Python scripts now run correctly under both Python 2 and Python 3 #14
-* The "accept autosuggestion" key can now be configured #19
-* Autosuggestions will no longer suggest invalid commands #6
-
----
-
-# fishfish Beta r2
-
-Bug Fixes
----------
-
-* **Implicit cd** is back, for paths that start with one or two dots, a slash, or a tilde.
-* **Overrides of default functions should be fixed.** The "internalized scripts" feature is disabled for now.
-* **Disabled delayed suspend.** This is a strange job-control feature of BSD systems, including OS X. Disabling it frees up Control Y for other purposes; in particular, for yank, which now works on OS X.
-* **fish_indent is fixed.** In particular, the `funced` and `funcsave` functions work again.
-* A SIGTERM now ends the whole execution stack again (resolving #13).
-* Bumped the __fish_config_interactive version number so the default fish_color_autosuggestion kicks in.
-* fish_config better handles combined term256 and classic colors like "555 yellow". 
-
-New Features
-------------
-
-* **A history builtin**, and associated interactive function that enables deleting history items. Example usage:
-      * Print all history items beginning with echo: `history --prefix echo`
-      * Print all history items containing foo: `history --contains foo`
-      * Interactively delete some items containing foo: `history --delete --contains foo`
-
-Credit to @siteshwar for implementation. Thanks @siteshwar!
-
----
-
-# fishfish Beta r1
-
-## Scripting
-* No changes! All existing fish scripts, config files, completions, etc. from trunk should continue to work.
-
-## New Features
-* **Autosuggestions**. Think URL fields in browsers. When you type a command, fish will suggest the rest of the command after the cursor, in a muted gray when possible. You can accept the suggestion with the right arrow key or Ctrl-F. Suggestions come from command history, completions, and some custom code for cd; there's a lot of potential for improvement here. The suggestions are computed on a background pthread, so they never slow down your typing. The autosuggestion feature is incredible. I miss it dearly every time I use anything else.
-
-* **term256 support** where available, specifically modern xterms and OS X Lion. You can specify colors the old way ('set_color cyan') or by specifying RGB hex values ('set_color FF3333'); fish will pick the closest supported color. Some xterms do not advertise term256 support either in the $TERM or terminfo max_colors field, but nevertheless support it. For that reason, fish will default into using it on any xterm (but it can be disabled with an environment variable).
-
-* **Web-based configuration** page. There is a new function 'fish_config'. This spins up a simple Python web server and opens a browser window to it. From this web page, you can set your shell colors and view your functions, variables, and history; all changes apply immediately to all running shells. Eventually all configuration ought to be supported via this mechanism (but in addition to, not instead of, command line mechanisms).
-
-* **Man page completions**. There is a new function 'fish_update_completions'. This function reads all the man1 files from your manpath, removes the roff formatting, parses them to find the commands and options, and outputs fish completions into ~/.config/fish/completions. It won't overwrite existing completion files (except ones that it generated itself).
-
-## Programmatic Changes
-* fish is now entirely in C++. I have no particular love for C++, but it provides a ready memory-model to replace halloc. We've made an effort to keep it to a sane and portable subset (no C++11, no boost, no going crazy with templates or smart pointers), but we do use the STL and a little tr1.
-* halloc is entirely gone, replaced by normal C++ ownership semantics. If you don't know what halloc is, well, now you have two reasons to be happy.
-* All the crufty C data structures are entirely gone. array_list_t, priority_queue_t, hash_table_t, string_buffer_t have been removed and replaced by STL equivalents like std::vector, std::map, and std::wstring. A lot of the string handling now uses std::wstring instead of wchar_t *
-* fish now spawns pthreads for tasks like syntax highlighting that require blocking I/O.
-* History has been completely rewritten. History files now use an extensible YAML-style syntax. History "merging" (multiple shells writing to the same history file) now works better. There is now a maximum history length of about 250k items (256 * 1024).
-* The parser has been "instanced," so you can now create more than one.
-* Total #LoC has shrunk slightly even with the new features.
-
-## Performance
-* fish now runs syntax highlighting in a background thread, so typing commands is always responsive even on slow filesystems.
-* echo, test, and pwd are now builtins, which eliminates many forks.
-* The files in share/functions and share/completions now get 'internalized' into C strings that get compiled in with fish. This substantially reduces the number of files touched at startup. A consequence is that you cannot change these functions without recompiling, but often other functions depend on these "standard" functions, so changing them is perhaps not a good idea anyways.
-
-Here are some system call counts for launching and then exiting fish with the default configuration, on OS X. The first column is fish trunk, the next column is with our changes, and the last column is bash for comparison. This data was collected via dtrace.
-
-<table>
-<tr> <th> <th> before <th> after <th> bash
-<tr> <th> open <td> 9 <td> 4 <td> 5
-<tr> <th> fork <td> 28 <td> 14 <td> 0
-<tr> <th> stat <td> 131 <td> 85 <td> 11
-<tr> <th> lstat <td> 670 <td> 0 <td> 0
-<tr> <th> read <td> 332 <td> 80 <td> 4
-<tr> <th> write <td> 172 <td> 149 <td> 0
-</table>
-
-The large number of forks relative to bash are due to fish's insanely expensive default prompt, which is unchanged in my version. If we switch to a prompt comparable to bash's (lame) default, the forks drop to 16 with trunk, 4 after our changes.
-
-The large reduction in lstat() numbers is due to fish no longer needing to call ttyname() on OS X.
-
-We've got some work to do to be as lean as bash, but we're on the right track. 

CONTRIBUTING.md

@@ -1,255 +0,0 @@
-
-# Guidelines For Developers
-
-This document provides guidelines for making changes to the fish-shell project. This includes rules for how to format the code, naming conventions, etc. It also includes recommended best practices such as creating a Travis-CI account so you can verify your changes pass all the tests before making a pull-request.
-
-See the bottom of this document for help on installing the linting and style reformatting tools discussed in the following sections.
-
-Fish source should limit the C++ features it uses to those available in C++03. That allows fish to use a few components from [C++TR1](https://en.wikipedia.org/wiki/C%2B%2B_Technical_Report_1) such as `shared_ptr`. It also allows fish to be built and run on OS X Snow Leopard (released in 2009); the oldest OS X release we still support.
-
-## Include What You Use
-
-You should not depend on symbols being visible to a `*.cpp` module from `#include` statements inside another header file. In other words if your module does `#include "common.h"` and that header does `#include "signal.h"` your module should pretend that sub-include is not present. It should instead directly `#include "signal.h"` if it needs any symbol from that header. That makes the actual dependencies much clearer. It also makes it easy to modify the headers included by a specific header file without having to worry that will break any module (or header) that includes a particular header.
-
-To help enforce this rule the `make lint` (and `make lint-all`) command will run the [include-what-you-use](http://include-what-you-use.org/) tool. The IWYU you project is on [github](https://github.com/include-what-you-use/include-what-you-use).
-
-To install the tool on OS X you'll need to add a [formula](https://github.com/jasonmp85/homebrew-iwyu) then install it:
-
-```
-brew tap jasonmp85/iwyu
-brew install iwyu
-```
-
-On Ubuntu you can install it via `sudo apt-get install iwyu`.
-
-## Lint Free Code
-
-Automated analysis tools like cppcheck and oclint can point out potential bugs. They also help ensure the code has a consistent style and that it avoids patterns that tend to confuse people.
-
-Ultimately we want lint free code. However, at the moment a lot of cleanup is required to reach that goal. For now simply try to avoid introducing new lint.
-
-To make linting the code easy there are two make targets: `lint` and `lint-all`. The latter does just what the name implies. The former will lint any modified but not committed `*.cpp` files. If there is no uncommitted work it will lint the files in the most recent commit.
-
-Fish has custom cppcheck rules in the file `.cppcheck.rule`. These help catch mistakes such as using `wcwidth()` rather than `fish_wcwidth()`. Please add a new rule if you find similar mistakes being made.
-
-### Dealing With Lint Warnings
-
-You are strongly encouraged to address a lint warning by refactoring the code, changing variable names, or whatever action is implied by the warning.
-
-### Suppressing Lint Warnings
-
-Once in a while the lint tools emit a false positive warning. For example, cppcheck might suggest a memory leak is present when that is not the case. To suppress that cppcheck warning you should insert a line like the following immediately prior to the line cppcheck warned about:
-
-```
-// cppcheck-suppress memleak // addr not really leaked
-```
-
-The explanatory portion of the suppression comment is optional. For other types of warnings replace "memleak" with the value inside the parenthesis (e.g., "nullPointerRedundantCheck") from a warning like the following:
-
-```
-[src/complete.cpp:1727]: warning (nullPointerRedundantCheck): Either the condition 'cmd_node' is redundant or there is possible null pointer dereference: cmd_node.
-```
-
-Suppressing oclint warnings is more complicated to describe so I'll refer you to the [OCLint HowTo](http://docs.oclint.org/en/latest/howto/suppress.html#annotations) on the topic.
-
-## Ensuring Your Changes Conform to the Style Guides
-
-The following sections discuss the specific rules for the style that should be used when writing fish code. To ensure your changes conform to the style rules you simply need to run
-
-```
-make style
-```
-
-before commiting your change. That will run `git-clang-format` to rewrite just the lines you're modifying.
-
-If you've already committed your changes that's okay since it will then check the files in the most recent commit. This can be useful after you've merged someone elses change and want to check that it's style is acceptable. However, in that case it will run `clang-format` to ensure the entire file, not just the lines modified by the commit, conform to the style.
-
-If you want to check the style of the entire code base run
-
-```
-make style-all
-```
-
-That command will refuse to restyle any files if you have uncommitted changes.
-
-### Configuring Your Editor for Fish C++ Code
-
-#### ViM
-
-As of ViM 7.4 it does not recognize triple-slash comments as used by Doxygen and the OS X Xcode IDE to flag comments that explain the following C symbol. This means the `gq` key binding to reformat such comments doesn't behave as expected. You can fix that by adding the following to your vimrc:
-
-```
-autocmd Filetype c,cpp setlocal comments^=:///
-```
-
-If you use ViM I recommend the [vim-clang-format plugin](https://github.com/rhysd/vim-clang-format) by [@rhysd](https://github.com/rhysd).
-
-You can also get ViM to provide reasonably correct behavior by installing
-
-http://www.vim.org/scripts/script.php?script_id=2636
-
-#### Emacs
-
-If you use Emacs: TBD
-
-### Configuring Your Editor for Fish Scripts
-
-If you use ViM: TBD
-
-If you use Emacs: Install [fish-mode](https://github.com/wwwjfy/emacs-fish) (also available in melpa and melpa-stable) and `(setq-default indent-tabs-mode nil)` for it (via a hook or in `use-package`s ":init" block). It can also be made to run fish_indent via e.g.
-
-```elisp
-(add-hook 'fish-mode-hook (lambda ()
-    (add-hook 'before-save-hook 'fish_indent-before-save)))
-```
-
-### Suppressing Reformatting of C++ Code
-
-If you have a good reason for doing so you can tell `clang-format` to not reformat a block of code by enclosing it in comments like this:
-
-```
-// clang-format off
-code to ignore
-// clang-format on
-```
-
-## Fish Script Style Guide
-
-1. Fish scripts such as those in the *share/functions* and *tests* directories should be formatted using the `fish_indent` command.
-
-1. Function names should be all lowercase with undescores separating words. Private functions should begin with an underscore. The first word should be `fish` if the function is unique to fish.
-
-1. The first word of global variable names should generally be `fish` for public vars or `_fish` for private vars to minimize the possibility of name clashes with user defined vars.
-
-## C++ Style Guide
-
-1. The [Google C++ Style Guide](https://google.github.io/styleguide/cppguide.html) forms the basis of the fish C++ style guide. There are two major deviations for the fish project. First, a four, rather than two, space indent. Second, line lengths up to 100, rather than 80, characters.
-
-1. The `clang-format` command is authoritative with respect to indentation, whitespace around operators, etc. **Note**: this rule should be ignored at this time. After the code is cleaned up this rule will become mandatory.
-
-1. All names in code should be `small_snake_case`. No Hungarian notation is used. Classes and structs names should be followed by `_t`.
-
-1. Always attach braces to the surrounding context.
-
-1. Indent with spaces, not tabs and use four spaces per indent.
-
-1. Comments should always use the C++ style; i.e., each line of the comment should begin with a `//` and should be limited to 100 characters. Comments that do not begin a line should be separated from the previous text by two spaces.
-
-1. Comments that document the purpose of a function or class should begin with three slashes, `///`, so that OS X Xcode (and possibly other ideas) will extract the comment and show it in the "Quick Help" window when the cursor is on the symbol.
-
-## Testing
-
-The source code for fish includes a large collection of tests. If you are making any changes to fish, running these tests is highly recommended to make sure the behaviour remains consistent.
-
-You are also strongly encouraged to add tests when changing the functionality of fish. Especially if you are fixing a bug to help ensure there are no regressions in the future (i.e., we don't reintroduce the bug).
-
-### Local testing
-
-The tests can be run on your local computer on all operating systems.
-
-Running the tests is only supported from the autotools build and not xcodebuild. On OS X, you will need to install autoconf — we suggest using [Homebrew](http://brew.sh/) to install these tools.
-
-    autoconf
-    ./configure
-    make test [gmake on BSD]
-
-### Travis CI Build and Test
-
-The Travis Continuous Integration services can be used to test your changes using multiple configurations. This is the same service that the fish shell project uses to ensure new changes haven't broken anything. Thus it is a really good idea that you leverage Travis CI before making a pull-request to avoid embarrasment at breaking the build.
-
-You will need to [fork the fish-shell repository on GitHub](https://help.github.com/articles/fork-a-repo/). Then setup Travis to test your changes before you make a pull-request:
-
-1. [Sign in to Travis CI](https://travis-ci.org/auth) with your GitHub account, accepting the GitHub access permissions confirmation.
-1. Once you're signed in, and your repositories are synchronised, go to your [profile page](https://travis-ci.org/profile) and enable the fish-shell repository.
-1. Push your changes to GitHub.
-
-You'll receive an email when the tests are complete telling you whether or not any tests failed.
-
-You'll find the configuration used to control Travis in the `.travis.yml` file.
-
-### Git hooks
-
-Since developers sometimes forget to run the tests, it can be helpful to use git hooks (see githooks(5)) to automate it.
-
-One possibility is a pre-push hook script like this one:
-
-```sh
-#!/bin/sh
-#### A pre-push hook for the fish-shell project
-# This will run the tests when a push to master is detected, and will stop that if the tests fail
-# Save this as .git/hooks/pre-push and make it executable
-
-protected_branch='master'
-
-# Git gives us lines like "refs/heads/frombranch SOMESHA1 refs/heads/tobranch SOMESHA1"
-# We're only interested in the branches
-while read from _ to _; do
-    if [ "x$to" = "xrefs/heads/$protected_branch" ]; then
-        isprotected=1
-    fi
-done
-if [ "x$isprotected" = x1 ]; then
-    echo "Running tests before push to master"
-    make test
-    RESULT=$?
-    if [ $RESULT -ne 0 ]; then
-        echo "Tests failed for a push to master, we can't let you do that" >&2
-        exit 1
-    fi
-fi
-exit 0
-```
-
-This will check if the push is to the master branch and, if it is, will run `make test` and only allow the push if that succeeds. In some circumstances it might be advisable to circumvent it with `git push --no-verify`, but usually that should not be necessary.
-
-To install the hook, put it in .git/hooks/pre-push and make it executable.
-
-### Coverity Scan
-
-We use Coverity's static analysis tool which offers free access to open source projects. While access to the tool itself is
-restricted, fish-shell organization members should know that they can login
-[here with their GitHub account](https://scan.coverity.com/projects/fish-shell-fish-shell?tab=overview).
-Currently, tests are triggered upon merging the `master` branch into `coverity_scan_master`.
-Even if you are not a fish developer, you can keep an eye on our statistics there.
-
-## Installing the Required Tools
-
-### Installing the Linting Tools
-
-To install the lint checkers on Mac OS X using HomeBrew:
-
-```
-brew tap oclint/formulae
-brew install oclint
-brew install cppcheck
-```
-
-To install the lint checkers on Linux distros that use Apt:
-
-```
-sudo apt-get install clang
-sudo apt-get install oclint
-sudo apt-get install cppcheck
-```
-
-### Installing the Reformatting Tools
-
-To install the reformatting tool on Mac OS X using HomeBrew:
-
-```
-brew install clang-format
-```
-
-To install the reformatting tool on Linux distros that use Apt:
-
-```
-apt-cache search clang-format
-```
-
-That will list the versions available. Pick the newest one available (3.6 for Ubuntu 14.04 as I write this) and install it:
-
-```
-sudo apt-get install clang-format-3.6
-sudo ln -s /usr/bin/clang-format-3.6 /usr/bin/clang-format
-
-```

COPYING

@@ -1,19 +0,0 @@
-Fish is a smart and user-friendly command line shell.
-
-Copyright (C) 2005-2009 Axel Liljencrantz
-
-fish is free software.
-
-Most of fish is licensed under the GNU General Public License version 2, and
-you can redistribute it and/or modify it under the terms of the GNU GPL as
-published by the Free Software Foundation.
-
-fish also includes software licensed under the GNU Lesser General Public
-License version 2, the OpenBSD license, the ISC license, and the NetBSD license.
-
-Full licensing information is contained in doc_src/license.hdr.
-
-This program is distributed in the hope that it will be useful, but WITHOUT
-ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-more details.

Dockerfile

@@ -1,19 +0,0 @@
-FROM centos:latest
-
-# Build dependency
-RUN yum update -y &&\
-  yum install -y autoconf automake bc clang gcc-c++ make ncurses-devel &&\
-  yum clean all
-
-# Test dependency
-RUN yum install -y expect vim-common
-
-ADD . /src
-WORKDIR /src
-
-# Build fish
-RUN autoreconf &&\
-  ./configure &&\
-  make &&\
-  make install
-

README.md

@@ -1,33 +1,25 @@
-[fish](http://fishshell.com/) - the friendly interactive shell [![Build Status](https://travis-ci.org/fish-shell/fish-shell.svg?branch=master)](https://travis-ci.org/fish-shell/fish-shell)
+[fish](http://ridiculousfish.com/shell/) - the friendly interactive shell
 ================================================
 
 fish is a smart and user-friendly command line shell for OS X, Linux, and the rest of the family. fish includes features like syntax highlighting, autosuggest-as-you-type, and fancy tab completions that just work, with no configuration required.
 
-For more on fish's design philosophy, see the [design document](http://fishshell.com/docs/current/design.html).
+For more on fish's design philosophy, see the [design document](http://ridiculousfish.com/shell/user_doc/html/design.html).
 
 ## Quick Start
 
-fish generally works like other shells, like bash or zsh. A few important differences can be found at <http://fishshell.com/docs/current/tutorial.html> by searching for the magic phrase "unlike other shells".
+fish generally works like other shells, like bash or zsh. A few important differences are documented at <http://ridiculousfish.com/shell/faq.html>
 
-Detailed user documentation is available by running `help` within fish, and also at <http://fishshell.com/docs/current/index.html>
+Detailed user documentation is available by running `help` within fish, and also at <http://ridiculousfish.com/shell/user_doc/html/>
 
 ## Building
 
-fish requires a C++11 compiler. It builds successfully with g++ 4.8 or later, or with clang 3.3 or later.
+fish is written in a sane subset of C++98, with a few components from C++TR1. It builds successfully with g++ 4.2 or later, and with clang. It also will build as C++11.
 
-fish can be built using autotools or Xcode. autoconf 2.60 or later, as well as automake 1.13 or later, are required to build from git versions. These are not required to build from released tarballs.
-
-fish depends on a curses implementation, such as ncurses. The headers and libraries are required for building.
-
-fish requires PCRE2 due to the regular expression support contained in the `string` builtin. A copy is included with the source code, and will be used automatically if it does not already exist on your system.
-
-fish requires gettext for translation support.
-
-Building the documentation requires Doxygen 1.8.7 or newer.
+fish can be built using autotools or Xcode.
 
 ### Autotools Build
 
-    autoreconf --no-recursive [if building from Git]
+    autoconf
     ./configure
     make [gmake on BSD]
     sudo make install
@@ -48,31 +40,15 @@ If fish reports that it could not find curses, try installing a curses developme
 
 On Debian or Ubuntu you want:
 
-    sudo apt-get install build-essential ncurses-dev libncurses5-dev gettext autoconf
+	sudo apt-get install libncurses5-dev libncursesw5-dev
 
-On RedHat, CentOS, or Amazon EC2:
+on RedHat, CentOS, or Amazon EC2:
 
     sudo yum install ncurses-devel
 
-## Runtime Dependencies
-
-fish requires a curses implementation, such as ncurses, to run.
-
-fish requires PCRE2 due to the regular expression support contained in the `string` builtin. A bundled version will be compiled in automatically at build time if required.
-
-fish requires a number of utilities to operate, which should be present on any Unix, GNU/Linux or OS X system. These include (but are not limited to) hostname, grep, awk, sed, which, and getopt. fish also requires the bc program.
-
-Translation support requires the gettext program.
-
-Usage output for builtin functions is generated on-demand from the installed manpages using `nroff` and `ul`.
-
-Some optional features of fish, such as the manual page completion parser and the web configuration tool, require Python.
-
-In order to generate completions from man pages compressed with either lzma or xz, you may need to install an extra Python package. Python versions prior to 2.6 are not supported.  To process lzma-compresed manpages, backports.lzma is needed for Python 3.2 or older. From version 3.3 onwards, Python already includes the required module.
-
 ## Packages for Linux
 
-Instructions on how to find builds for several Linux distros are at <https://github.com/fish-shell/fish-shell/wiki/Nightly-builds>
+Nightly builds for several Linux distros can be downloaded from <http://download.opensuse.org/repositories/home:/siteshwar/>
 
 ## Switching to fish
 
@@ -80,11 +56,7 @@ If you wish to use fish as your default shell, use the following command:
 
 	chsh -s /usr/local/bin/fish
 
-chsh will prompt you for your password, and change your default shell. Substitute "/usr/local/bin/fish" with whatever path to fish is in your /etc/shells file.
-
-Use the following command if you didn't already add your fish path to /etc/shells.
-
-    echo /usr/local/bin/fish | sudo tee -a /etc/shells
+chsh will prompt you for your password, and change your default shell.
 
 To switch your default shell back, you can run:
 
@@ -92,14 +64,8 @@ To switch your default shell back, you can run:
 
 Substitute /bin/bash with /bin/tcsh or /bin/zsh as appropriate.
 
-You may need to logout/login for the change (chsh) to take effect.
-
-## Contributing Changes to the Code
-
-See the [Guide for Developers](CONTRIBUTING.md).
-
 ## Contact Us
 
-Questions, comments, rants and raves can be posted to the official fish mailing list at <https://lists.sourceforge.net/lists/listinfo/fish-users> or join us on our [gitter.im channel](https://gitter.im/fish-shell/fish-shell) or IRC channel [#fish at irc.oftc.net](https://webchat.oftc.net/?channels=fish). Or use the [fish tag on Stackoverflow](https://stackoverflow.com/questions/tagged/fish).
+Questions, comments, rants and raves can be posted to the official fish mailing list at <https://lists.sourceforge.net/lists/listinfo/fish-users> or join us on our IRC channel #fish at irc.oftc.net
 
 Found a bug? Have an awesome idea? Please open an issue on this github page.

STYLEGUIDE.md

@@ -0,0 +1,105 @@
+# Style guide
+
+This is style guide for fish contributors. You should use it for any new code
+that you would add to this project and try to format existing code to use this
+style.
+
+## Formatting
+
+1. fish uses the Allman/BSD style of indentation.
+2. Indent with spaces, not tabs.
+3. Use 4 spaces per indent (unless needed like `Makefile`).
+4. Opening curly bracket is on the following line:
+
+        // ✔:
+        struct name
+        {
+          // code
+        };
+
+        void func()
+        {
+          // code
+        }
+
+        if (...)
+        {
+          // code
+        }
+
+        // ✗:
+        void func() {
+          // code
+        }
+
+5. Put space after `if`, `while` and `for` before conditions.
+
+        // ✔:
+        if () {}
+
+        // ✗:
+        if() {}
+
+6. Put spaces before and after operators excluding increment and decrement;
+
+        // ✔:
+        int a = 1 + 2 * 3;
+        a++;
+
+        // ✗:
+        int a=1+2*3;
+        a ++;
+
+7. Never put spaces between function name and parameters list.
+
+        // ✔:
+        func(args);
+
+        // ✗:
+        func (args);
+
+8. Never put spaces after `(` and before `)`.
+9. Always put space after comma and semicolon.
+
+        // ✔:
+        func(arg1, arg2);
+
+        for (int i = 0; i < LENGTH; i++) {}
+
+        // ✗:
+        func(arg1,arg2);
+
+        for (int i = 0;i<LENGTH;i++) {}
+
+## Documentation
+
+Document your code using [Doxygen][dox].
+
+1. Documentation comment should use double star notation or tripple slash:
+
+        // ✔:
+        /// Some var
+        int var;
+
+        /**
+         * Some func
+         */
+        void func();
+
+2. Use slash as tag mark:
+
+        // ✔:
+
+        /**
+         * \param a an integer argument.
+         * \param s a constant character pointer.
+         * \return The results
+         */
+        int foo(int a, const char *s);
+
+## Naming
+
+All names in code should be `small_snake_case`. No Hungarian notation is used.
+Classes and structs names should be followed by `_t`.
+
+[dox]: http://www.stack.nl/~dimitri/doxygen/ "Doxygen homepage"

autoload.cpp

@@ -0,0 +1,376 @@
+/** \file autoload.cpp
+
+The classes responsible for autoloading functions and completions.
+*/
+
+#include "config.h"
+#include "autoload.h"
+#include "wutil.h"
+#include "common.h"
+#include "signal.h"
+#include "env.h"
+#include "exec.h"
+#include <assert.h>
+#include <algorithm>
+
+/* The time before we'll recheck an autoloaded file */
+static const int kAutoloadStalenessInterval = 15;
+
+file_access_attempt_t access_file(const wcstring &path, int mode)
+{
+    //printf("Touch %ls\n", path.c_str());
+    file_access_attempt_t result = {0};
+    struct stat statbuf;
+    if (wstat(path, &statbuf))
+    {
+        result.error = errno;
+    }
+    else
+    {
+        result.mod_time = statbuf.st_mtime;
+        if (waccess(path, mode))
+        {
+            result.error = errno;
+        }
+        else
+        {
+            result.accessible = true;
+        }
+    }
+
+    // Note that we record the last checked time after the call, on the assumption that in a slow filesystem, the lag comes before the kernel check, not after.
+    result.stale = false;
+    result.last_checked = time(NULL);
+    return result;
+}
+
+autoload_t::autoload_t(const wcstring &env_var_name_var, const builtin_script_t * const scripts, size_t script_count) :
+    lock(),
+    env_var_name(env_var_name_var),
+    builtin_scripts(scripts),
+    builtin_script_count(script_count),
+    last_path(),
+    is_loading_set()
+{
+    pthread_mutex_init(&lock, NULL);
+}
+
+autoload_t::~autoload_t()
+{
+    pthread_mutex_destroy(&lock);
+}
+
+void autoload_t::node_was_evicted(autoload_function_t *node)
+{
+    // This should only ever happen on the main thread
+    ASSERT_IS_MAIN_THREAD();
+
+    // Tell ourselves that the command was removed if it was loaded
+    if (! node->is_loaded)
+        this->command_removed(node->key);
+    delete node;
+}
+
+int autoload_t::unload(const wcstring &cmd)
+{
+    return this->evict_node(cmd);
+}
+
+int autoload_t::load(const wcstring &cmd, bool reload)
+{
+    int res;
+    CHECK_BLOCK(0);
+    ASSERT_IS_MAIN_THREAD();
+
+    env_var_t path_var = env_get_string(env_var_name);
+
+    /*
+      Do we know where to look?
+    */
+    if (path_var.empty())
+        return 0;
+
+    /* Check if the lookup path has changed. If so, drop all loaded files. path_var may only be inspected on the main thread. */
+    if (path_var != this->last_path)
+    {
+        this->last_path = path_var;
+        scoped_lock locker(lock);
+        this->evict_all_nodes();
+    }
+
+    /** Warn and fail on infinite recursion. It's OK to do this because this function is only called on the main thread. */
+    if (this->is_loading(cmd))
+    {
+        debug(0,
+              _(L"Could not autoload item '%ls', it is already being autoloaded. "
+                L"This is a circular dependency in the autoloading scripts, please remove it."),
+              cmd.c_str());
+        return 1;
+    }
+
+    /* Mark that we're loading this */
+    is_loading_set.insert(cmd);
+
+    /* Get the list of paths from which we will try to load */
+    std::vector<wcstring> path_list;
+    tokenize_variable_array(path_var, path_list);
+
+    /* Try loading it */
+    res = this->locate_file_and_maybe_load_it(cmd, true, reload, path_list);
+
+    /* Clean up */
+    bool erased = !! is_loading_set.erase(cmd);
+    assert(erased);
+
+    return res;
+}
+
+bool autoload_t::can_load(const wcstring &cmd, const env_vars_snapshot_t &vars)
+{
+    const env_var_t path_var = vars.get(env_var_name);
+    if (path_var.missing_or_empty())
+        return false;
+
+    std::vector<wcstring> path_list;
+    tokenize_variable_array(path_var, path_list);
+    return this->locate_file_and_maybe_load_it(cmd, false, false, path_list);
+}
+
+static bool script_name_precedes_script_name(const builtin_script_t &script1, const builtin_script_t &script2)
+{
+    return wcscmp(script1.name, script2.name) < 0;
+}
+
+void autoload_t::unload_all(void)
+{
+    scoped_lock locker(lock);
+    this->evict_all_nodes();
+}
+
+/** Check whether the given command is loaded. */
+bool autoload_t::has_tried_loading(const wcstring &cmd)
+{
+    scoped_lock locker(lock);
+    autoload_function_t * func = this->get_node(cmd);
+    return func != NULL;
+}
+
+static bool is_stale(const autoload_function_t *func)
+{
+    /** Return whether this function is stale. Internalized functions can never be stale. */
+    return ! func->is_internalized && time(NULL) - func->access.last_checked > kAutoloadStalenessInterval;
+}
+
+autoload_function_t *autoload_t::get_autoloaded_function_with_creation(const wcstring &cmd, bool allow_eviction)
+{
+    ASSERT_IS_LOCKED(lock);
+    autoload_function_t *func = this->get_node(cmd);
+    if (! func)
+    {
+        func = new autoload_function_t(cmd);
+        if (allow_eviction)
+        {
+            this->add_node(func);
+        }
+        else
+        {
+            this->add_node_without_eviction(func);
+        }
+    }
+    return func;
+}
+
+/**
+   This internal helper function does all the real work. By using two
+   functions, the internal function can return on various places in
+   the code, and the caller can take care of various cleanup work.
+
+     cmd: the command name ('grep')
+     really_load: whether to actually parse it as a function, or just check it it exists
+     reload: whether to reload it if it's already loaded
+     path_list: the set of paths to check
+
+     Result: if really_load is true, returns whether the function was loaded. Otherwise returns whether the function existed.
+*/
+bool autoload_t::locate_file_and_maybe_load_it(const wcstring &cmd, bool really_load, bool reload, const wcstring_list_t &path_list)
+{
+    /* Note that we are NOT locked in this function! */
+    size_t i;
+    bool reloaded = 0;
+
+    /* Try using a cached function. If we really want the function to be loaded, require that it be really loaded. If we're not reloading, allow stale functions. */
+    {
+        bool allow_stale_functions = ! reload;
+
+        /* Take a lock */
+        scoped_lock locker(lock);
+
+        /* Get the function */
+        autoload_function_t * func = this->get_node(cmd);
+
+        /* Determine if we can use this cached function */
+        bool use_cached;
+        if (! func)
+        {
+            /* Can't use a function that doesn't exist */
+            use_cached = false;
+        }
+        else if (really_load && ! func->is_placeholder && ! func->is_loaded)
+        {
+            /* Can't use an unloaded function */
+            use_cached = false;
+        }
+        else if (! allow_stale_functions && is_stale(func))
+        {
+            /* Can't use a stale function */
+            use_cached = false;
+        }
+        else
+        {
+            /* I guess we can use it */
+            use_cached = true;
+        }
+
+        /* If we can use this function, return whether we were able to access it */
+        if (use_cached)
+        {
+            return func->is_internalized || func->access.accessible;
+        }
+    }
+    /* The source of the script will end up here */
+    wcstring script_source;
+    bool has_script_source = false;
+
+    /* Whether we found an accessible file */
+    bool found_file = false;
+
+    /* Look for built-in scripts via a binary search */
+    const builtin_script_t *matching_builtin_script = NULL;
+    if (builtin_script_count > 0)
+    {
+        const builtin_script_t test_script = {cmd.c_str(), NULL};
+        const builtin_script_t *array_end = builtin_scripts + builtin_script_count;
+        const builtin_script_t *found = std::lower_bound(builtin_scripts, array_end, test_script, script_name_precedes_script_name);
+        if (found != array_end && ! wcscmp(found->name, test_script.name))
+        {
+            /* We found it */
+            matching_builtin_script = found;
+        }
+    }
+    if (matching_builtin_script)
+    {
+        has_script_source = true;
+        script_source = str2wcstring(matching_builtin_script->def);
+
+        /* Make a node representing this function */
+        scoped_lock locker(lock);
+        autoload_function_t *func = this->get_autoloaded_function_with_creation(cmd, really_load);
+
+        /* This function is internalized */
+        func->is_internalized = true;
+
+        /* It's a fiction to say the script is loaded at this point, but we're definitely going to load it down below. */
+        if (really_load) func->is_loaded = true;
+    }
+
+    if (! has_script_source)
+    {
+        /* Iterate over path searching for suitable completion files */
+        for (i=0; i<path_list.size(); i++)
+        {
+            wcstring next = path_list.at(i);
+            wcstring path = next + L"/" + cmd + L".fish";
+
+            const file_access_attempt_t access = access_file(path, R_OK);
+            if (access.accessible)
+            {
+                /* Found it! */
+                found_file = true;
+
+                /* Now we're actually going to take the lock. */
+                scoped_lock locker(lock);
+                autoload_function_t *func = this->get_node(cmd);
+
+                /* Generate the source if we need to load it */
+                bool need_to_load_function = really_load && (func == NULL || func->access.mod_time != access.mod_time || ! func->is_loaded);
+                if (need_to_load_function)
+                {
+
+                    /* Generate the script source */
+                    wcstring esc = escape_string(path, 1);
+                    script_source = L". " + esc;
+                    has_script_source = true;
+
+                    /* Remove any loaded command because we are going to reload it. Note that this will deadlock if command_removed calls back into us. */
+                    if (func && func->is_loaded)
+                    {
+                        command_removed(cmd);
+                        func->is_placeholder = false;
+                    }
+
+                    /* Mark that we're reloading it */
+                    reloaded = true;
+                }
+
+                /* Create the function if we haven't yet. This does not load it. Do not trigger eviction unless we are actually loading, because we don't want to evict off of the main thread. */
+                if (! func)
+                {
+                    func = get_autoloaded_function_with_creation(cmd, really_load);
+                }
+
+                /* It's a fiction to say the script is loaded at this point, but we're definitely going to load it down below. */
+                if (need_to_load_function) func->is_loaded = true;
+
+                /* Unconditionally record our access time */
+                func->access = access;
+
+                break;
+            }
+        }
+
+        /*
+          If no file or builtin script was found we insert a placeholder function.
+          Later we only research if the current time is at least five seconds later.
+          This way, the files won't be searched over and over again.
+        */
+        if (! found_file && ! has_script_source)
+        {
+            scoped_lock locker(lock);
+            /* Generate a placeholder */
+            autoload_function_t *func = this->get_node(cmd);
+            if (! func)
+            {
+                func = new autoload_function_t(cmd);
+                func->is_placeholder = true;
+                if (really_load)
+                {
+                    this->add_node(func);
+                }
+                else
+                {
+                    this->add_node_without_eviction(func);
+                }
+            }
+            func->access.last_checked = time(NULL);
+        }
+    }
+
+    /* If we have a script, either built-in or a file source, then run it */
+    if (really_load && has_script_source)
+    {
+        if (exec_subshell(script_source, false /* do not apply exit status */) == -1)
+        {
+            /* Do nothing on failure */
+        }
+
+    }
+
+    if (really_load)
+    {
+        return reloaded;
+    }
+    else
+    {
+        return found_file || has_script_source;
+    }
+}

autoload.h

@@ -0,0 +1,138 @@
+/** \file autoload.h
+
+    The classes responsible for autoloading functions and completions.
+*/
+
+#ifndef FISH_AUTOLOAD_H
+#define FISH_AUTOLOAD_H
+
+#include <wchar.h>
+#include <map>
+#include <set>
+#include <list>
+#include "common.h"
+#include "lru.h"
+
+/** A struct responsible for recording an attempt to access a file. */
+struct file_access_attempt_t
+{
+    time_t mod_time; /** The modification time of the file */
+    time_t last_checked; /** When we last checked the file */
+    bool accessible; /** Whether we believe we could access this file */
+    bool stale; /** Whether the access attempt is stale */
+    int error; /** If we could not access the file, the error code */
+};
+
+file_access_attempt_t access_file(const wcstring &path, int mode);
+
+struct autoload_function_t : public lru_node_t
+{
+    autoload_function_t(const wcstring &key) : lru_node_t(key), access(), is_loaded(false), is_placeholder(false), is_internalized(false) { }
+    file_access_attempt_t access; /** The last access attempt */
+    bool is_loaded; /** Whether we have actually loaded this function */
+    bool is_placeholder; /** Whether we are a placeholder that stands in for "no such function". If this is true, then is_loaded must be false. */
+    bool is_internalized; /** Whether this function came from a builtin "internalized" script */
+};
+
+struct builtin_script_t
+{
+    const wchar_t *name;
+    const char *def;
+};
+
+struct builtin_script_t;
+class env_vars_snapshot_t;
+
+/**
+  A class that represents a path from which we can autoload, and the autoloaded contents.
+ */
+class autoload_t : private lru_cache_t<autoload_function_t>
+{
+private:
+
+    /** Lock for thread safety */
+    pthread_mutex_t lock;
+
+    /** The environment variable name */
+    const wcstring env_var_name;
+
+    /** Builtin script array */
+    const struct builtin_script_t *const builtin_scripts;
+
+    /** Builtin script count */
+    const size_t builtin_script_count;
+
+    /** The path from which we most recently autoloaded */
+    wcstring last_path;
+
+    /**
+       A table containing all the files that are currently being
+       loaded. This is here to help prevent recursion.
+    */
+    std::set<wcstring> is_loading_set;
+
+    bool is_loading(const wcstring &name) const
+    {
+        return is_loading_set.find(name) != is_loading_set.end();
+    }
+
+    void remove_all_functions(void)
+    {
+        this->evict_all_nodes();
+    }
+
+    bool locate_file_and_maybe_load_it(const wcstring &cmd, bool really_load, bool reload, const wcstring_list_t &path_list);
+
+    virtual void node_was_evicted(autoload_function_t *node);
+
+    autoload_function_t *get_autoloaded_function_with_creation(const wcstring &cmd, bool allow_eviction);
+
+protected:
+    /** Overridable callback for when a command is removed */
+    virtual void command_removed(const wcstring &cmd) { }
+
+public:
+
+    /** Create an autoload_t for the given environment variable name */
+    autoload_t(const wcstring &env_var_name_var, const builtin_script_t *scripts, size_t script_count);
+
+    /** Destructor */
+    virtual ~autoload_t();
+
+    /**
+       Autoload the specified file, if it exists in the specified path. Do
+       not load it multiple times unless its timestamp changes or
+       parse_util_unload is called.
+
+       Autoloading one file may unload another.
+
+       \param cmd the filename to search for. The suffix '.fish' is always added to this name
+       \param on_unload a callback function to run if a suitable file is found, which has not already been run. unload will also be called for old files which are unloaded.
+       \param reload wheter to recheck file timestamps on already loaded files
+    */
+    int load(const wcstring &cmd, bool reload);
+
+    /** Check whether we have tried loading the given command. Does not do any I/O. */
+    bool has_tried_loading(const wcstring &cmd);
+
+    /**
+       Tell the autoloader that the specified file, in the specified path,
+       is no longer loaded.
+
+       \param cmd the filename to search for. The suffix '.fish' is always added to this name
+       \param on_unload a callback function which will be called before (re)loading a file, may be used to unload the previous file.
+       \return non-zero if the file was removed, zero if the file had not yet been loaded
+    */
+    int unload(const wcstring &cmd);
+
+    /**
+       Unloads all files.
+    */
+    void unload_all();
+
+    /** Check whether the given command could be loaded, but do not load it. */
+    bool can_load(const wcstring &cmd, const env_vars_snapshot_t &vars);
+
+};
+
+#endif

build_tools/build_documentation.sh

@@ -20,9 +20,10 @@ else
 fi
 
 # Determine which man pages we don't want to generate.
+# Don't make a test man page. fish's test is conforming, so the system man pages
+# are applicable and generally better.
 # on OS X, don't make a man page for open, since we defeat fish's open function on OS X.
-# This is also done in the Makefile, but the Xcode build doesn't use that
-CONDEMNED_PAGES=
+CONDEMNED_PAGES=test.1
 if test `uname` = 'Darwin'; then
 	CONDEMNED_PAGES="$CONDEMNED_PAGES open.1"
 fi
@@ -38,18 +39,13 @@ resolve_path()
 # Expand relative paths
 DOXYFILE=`resolve_path "$DOXYFILE"`
 INPUTDIR=`resolve_path "$INPUTDIR"`
-INPUTFILTER=`resolve_path "$INPUT_FILTER"`
 OUTPUTDIR=`resolve_path "$OUTPUTDIR"`
 
 echo "      doxygen file: $DOXYFILE"
 echo "   input directory: $INPUTDIR"
-echo "      input filter: $INPUTFILTER"
 echo "  output directory: $OUTPUTDIR"
 echo "          skipping: $CONDEMNED_PAGES"
 
-#Until now the makefile likely has been affecting our output, reset for upcoming warnings
-tput sgr0
-
 # Make sure INPUTDIR is found
 if test ! -d "$INPUTDIR"; then
 	echo >&2 "Could not find input directory '${INPUTDIR}'"
@@ -72,12 +68,6 @@ if test -z "$DOXYGENPATH"; then
     exit 0
 fi
 
-# Check we have the lexicon filter
-if test -z "$INPUT_FILTER"; then
-    echo >&2 "Lexicon filter is not available. Continuing without."
-    INPUTFILTER=''
-fi
-
 # Determine where our output should go
 if ! mkdir -p "${OUTPUTDIR}" ; then
     echo "Could not create output directory '${OUTPUTDIR}'"
@@ -98,8 +88,7 @@ done
 # Input is kept as . because we cd to the input directory beforehand
 # This prevents doxygen from generating "documentation" for intermediate directories
 DOXYPARAMS=$(cat <<EOF
-PROJECT_NUMBER=$PROJECT_NUMBER
-INPUT_FILTER=$INPUTFILTER
+PROJECT_NUMBER=2.0.0
 INPUT=.
 OUTPUT_DIRECTORY=$OUTPUTDIR
 QUIET=YES
@@ -113,7 +102,7 @@ find "${OUTPUTDIR}" -name "*.1" -delete
 
 # Run doxygen
 cd "$TMPLOC"
-(cat "${DOXYFILE}" ; echo "$DOXYPARAMS";) | "$DOXYGENPATH" -
+(cat "${DOXYFILE}" ; echo "$DOXYPARAMS";) | "$DOXYGENPATH" - 
 
 # Remember errors
 RESULT=$?
@@ -123,31 +112,25 @@ if test "$RESULT" = 0 ; then
 
 	# Postprocess the files
 	for i in "$INPUTDIR"/*.txt; do
-		# It would be nice to use -i here for edit in place, but that is not portable
+		# It would be nice to use -i here for edit in place, but that is not portable 
 		CMD_NAME=`basename "$i" .txt`;
-		sed < ${CMD_NAME}.1 > ${CMD_NAME}.1.tmp \
-            -e "/.SH \"$CMD_NAME/d" \
-            -e "s/^$CMD_NAME * \\\- \([^ ]*\) /\\\fB\1\\\fP -/"
+		sed -e "s/\(.\)\\.SH/\1/" -e "s/$CMD_NAME *\\\\- *\"\(.*\)\"/\1/" "${CMD_NAME}.1" > "${CMD_NAME}.1.tmp"
 		mv "${CMD_NAME}.1.tmp" "${CMD_NAME}.1"
 	done
-
+	
 	# Erase condemned pages
 	rm -f $CONDEMNED_PAGES
+	
 fi
 
 # Destroy TMPLOC
-if test "$RESULT" -ne 0; then
-	echo "Cleaning up '$TMPLOC'"
-fi
+echo "Cleaning up '$TMPLOC'"
 rm -Rf "$TMPLOC"
 
-if test "$RESULT" -ne 0; then
-	tput smso 2> /dev/null || true
-	echo "Doxygen failed creating manpages. See the output log for details."
-	tput sgr0 2> /dev/null || true
+if test "$RESULT" = 0; then
+    # Tell the user what we did
+    echo "Output man pages into '${OUTPUTDIR}'"
 else
-	tput bold 2> /dev/null || true
-	echo Built manpages
-	tput sgr0 2> /dev/null || true
+    echo "Doxygen failed. See the output log for details."
 fi
 exit $RESULT

build_tools/cppcheck.sh

@@ -1,3 +0,0 @@
-#!/usr/local/bin/fish
-
-cppcheck --enable=all --std=posix --quiet ./src/

build_tools/description-pak

@@ -0,0 +1,3 @@
+This is the_ridiculous'fish s delightful fork of, fish friendly interactive shell. For more information, visit http://ridiculousfish.com/shell/ .
+
+This installer will install fish, but will not modify your /etc/shells file or your default shell. I trust you know how to do that yourself if you care to!

build_tools/git_version_gen.sh

@@ -1,28 +0,0 @@
-#!/bin/sh
-# Originally from the git sources (GIT-VERSION-GEN)
-# Presumably (C) Junio C Hamano <junkio@cox.net>
-# Reused under GPL v2.0
-# Modified for fish by David Adam <zanchey@ucc.gu.uwa.edu.au>
-
-FBVF=FISH-BUILD-VERSION-FILE
-DEF_VER=unknown
-
-# First see if there is a version file (included in release tarballs),
-# then try git-describe, then default.
-if test -f version
-then
-	VN=$(cat version) || VN="$DEF_VER"
-elif ! VN=$(git describe --always --dirty 2>/dev/null); then
-	VN="$DEF_VER"
-fi
-
-if test -r $FBVF
-then
-	VC=$(sed -e 's/^FISH_BUILD_VERSION = //' <$FBVF)
-else
-	VC=unset
-fi
-test "$VN" = "$VC" || {
-	echo >&2 "FISH_BUILD_VERSION = $VN"
-	echo "FISH_BUILD_VERSION = $VN" >$FBVF
-}

build_tools/iwyu.linux.imp

@@ -1,28 +0,0 @@
-# Map file for the include-what-you-use tool on Linux.
-[
-    { include: ["<bits/fcntl-linux.h>", "private", "<fcntl.h>", "public"] },
-    { include: ["<bits/mman-linux.h>", "private", "<sys/mman.h>", "public"] },
-    { include: ["<bits/socket-linux.h>", "private", "<sys/socket.h>", "public"] },
-    { include: ["<bits/socket_type.h>", "private", "<sys/socket.h>", "public"] },
-    { include: ["<bits/local_lim.h>", "private", "<limits.h>", "public"] },
-    { include: ["<tr1/memory>", "public", "<memory>", "public"] },
-    { include: ["<features.h>", "public", "<stdio.h>", "public"] },
-    { include: ["<features.h>", "public", "<stddef.h>", "public"] },
-    { include: ["<features.h>", "public", "<unistd.h>", "public"] },
-
-    { symbol: ["size_t", "private", "<unistd.h>", "public"] },
-    { symbol: ["size_t", "private", "<stddef.h>", "public"] },
-    { symbol: ["size_t", "private", "<stdlib.h>", "public"] },
-    { symbol: ["intmax_t", "private", "<sys/stdint.h>", "public"] },
-    { symbol: ["intmax_t", "private", "<sys/types.h>", "public"] },
-    { symbol: ["uint32_t", "private", "<sys/stdint.h>", "public"] },
-    { symbol: ["uint32_t", "private", "<sys/types.h>", "public"] },
-    { symbol: ["uint64_t", "private", "<sys/stdint.h>", "public"] },
-    { symbol: ["uint64_t", "private", "<sys/types.h>", "public"] },
-    { symbol: ["uintmax_t", "private", "<sys/stdint.h>", "public"] },
-    { symbol: ["uintmax_t", "private", "<sys/types.h>", "public"] },
-    { symbol: ["clock_gettime", "private", "<sys/time.h>", "public"] },
-    { symbol: ["timespec", "private", "<sys/time.h>", "public"] },
-    { symbol: ["memset", "private", "<string.h>", "public"] },
-    { symbol: ["strerror", "private", "<string.h>", "public"] },
-]

build_tools/iwyu.osx.imp

@@ -1,98 +0,0 @@
-# Map file for the include-what-you-use tool on OS X. For some reason
-# the version installed by HomeBrew doesn't have useful mappings for the
-# system provided private headers.
-[
-    { include: ["<sys/_pthread/_pthread_once_t.h>", "private", "<pthread.h>", "public"] },
-    { include: ["<sys/_pthread/_pthread_mutex_t.h>", "private", "<pthread.h>", "public"] },
-    { include: ["<sys/_pthread/_pthread_rwlock_t.h>", "private", "<pthread.h>", "public"] },
-    { include: ["<sys/_pthread/_pthread_mutexattr_t.h>", "private", "<pthread.h>", "public"] },
-    { include: ["<sys/_pthread/_pthread_cond_t.h>", "private", "<pthread.h>", "public"] },
-    { include: ["<sys/_pthread/_pthread_t.h>", "private", "<pthread.h>", "public"] },
-    { include: ["<sys/_pthread/_pthread_key_t.h>", "private", "<pthread.h>", "public"] },
-    { include: ["<sys/_types/_posix_vdisable.h>", "private", "<pthread.h>", "public"] },
-    { include: ["<sys/_types/_time_t.h>", "private", "<time.h>", "public"] },
-    { include: ["<sys/_types/_suseconds_t.h>", "private", "<time.h>", "public"] },
-    { include: ["<sys/_types/_suseconds_t.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/errno.h>", "private", "<errno.h>", "public"] },
-    { include: ["<sys/unistd.h>", "private", "<unistd.h>", "public"] },
-    { include: ["<_wctype.h>", "private", "<wctype.h>", "public"] },
-    { include: ["<sys/fcntl.h>", "private", "<fcntl.h>", "public"] },
-    { include: ["<sys/_types/_seek_set.h>", "private", "<fcntl.h>", "public"] },
-    { include: ["<sys/_types/_mbstate_t.h>", "private", "<wchar.h>", "public"] },
-    { include: ["<iosfwd>", "private", "<string>", "public"] },
-    { include: ["<sys/_types/_s_ifmt.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_size_t.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_size_t.h>", "private", "<stdlib.h>", "public"] },
-    { include: ["<sys/_types/_mode_t.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_pid_t.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_fd_def.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_fd_isset.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_fd_set.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_fd_zero.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_timeval.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_uid_t.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<_types/_intmax_t.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<_types/_uintmax_t.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<_types/_uint8_t.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_int32_t.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<_types/_uint64_t.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_uintptr_t.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_dev_t.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_ino_t.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_va_list.h>", "private", "<stdio.h>", "public"] },
-    { include: ["<__functional_base>", "private", "<memory>", "public"] },
-    { include: ["<__functional_base>", "private", "<vector>", "public"] },
-    { include: ["<__functional_base>", "private", "<string>", "public"] },
-    { include: ["<__tree>", "private", "<map>", "public"] },
-    { include: ["<__tree>", "private", "<set>", "public"] },
-    { include: ["<_types/_uint32_t.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_va_list.h>", "private", "<sys/types.h>", "public"] },
-    { include: ["<sys/_types/_sigset_t.h>", "private", "<signal.h>", "public"] },
-    { include: ["<sys/signal.h>", "private", "<signal.h>", "public"] },
-    { include: ["<strings.h>", "private", "<string.h>", "public"] },
-    { include: ["<sys/termios.h>", "private", "<termios.h>", "public"] },
-    { include: ["<sys/ttycom.h>", "private", "<termios.h>", "public"] },
-    { include: ["<sys/syslimits.h>", "private", "<limits.h>", "public"] },
-    { include: ["<i386/limits.h>", "private", "<limits.h>", "public"] },
-    { include: ["<sys/_types/_wint_t.h>", "private", "<stddef.h>", "public"] },
-    { include: ["<sys/_select.h>", "private", "<select.h>", "public"] },
-    { include: ["<sys/cdefs.h>", "private", "<unistd.h>", "public"] },
-    { include: ["<istream>", "private", "<iostream>", "public"] },
-    { include: ["<sys/_endian.h>", "private", "<netinet/in.h>", "public"] },
-    { include: ["<sys/_types/_timespec.h>", "private", "<time.h>", "public"] },
-    { include: ["<sys/spawn.h>", "private", "<spawn.h>", "public"] },
-    { include: ["<sys/dirent.h>", "private", "<dirent.h>", "public"] },
-#   { include: ["<>", "private", "<>", "public"] },
-
-    { symbol: ["NULL", "private", "<stddef.h>", "public"] },
-    { symbol: ["NULL", "private", "<stdlib.h>", "public"] },
-    { symbol: ["NULL", "private", "<stdio.h>", "public"] },
-    { symbol: ["NULL", "private", "<unistd.h>", "public"] },
-    { symbol: ["off_t", "private", "<unistd.h>", "public"] },
-    { symbol: ["size_t", "private", "<unistd.h>", "public"] },
-    { symbol: ["size_t", "private", "<stddef.h>", "public"] },
-    { symbol: ["size_t", "private", "<stdlib.h>", "public"] },
-    { symbol: ["off_t", "private", "<sys/types.h>", "public"] },
-    { symbol: ["size_t", "private", "<sys/types.h>", "public"] },
-    { symbol: ["ssize_t", "private", "<sys/types.h>", "public"] },
-    { symbol: ["intptr_t", "private", "<unistd.h>", "public"] },
-    { symbol: ["ssize_t", "private", "<unistd.h>", "public"] },
-    { symbol: ["gid_t", "private", "<unistd.h>", "public"] },
-    { symbol: ["uid_t", "private", "<unistd.h>", "public"] },
-    { symbol: ["pid_t", "private", "<unistd.h>", "public"] },
-    { symbol: ["pid_t", "private", "<sys/types.h>", "public"] },
-    { symbol: ["uid_t", "private", "<sys/types.h>", "public"] },
-    { symbol: ["gid_t", "private", "<sys/types.h>", "public"] },
-    { symbol: ["timeval", "private", "<sys/time.h>", "public"] },
-    { symbol: ["uint32_t", "private", "<sys/types.h>", "public"] },
-    { symbol: ["uint32_t", "private", "<stdint.h>", "public"] },
-    { symbol: ["intptr_t", "private", "<stdint.h>", "public"] },
-    { symbol: ["size_t", "private", "<stdint.h>", "public"] },
-    { symbol: ["tparm", "private", "<ncurses.h>", "public"] },
-    { symbol: ["ERR", "private", "<ncurses.h>", "public"] },
-    { symbol: ["select", "private", "<sys/select.h>", "public"] },
-    { symbol: ["_LIBCPP_VERSION", "private", "<stddef.h>", "public"] },
-    { symbol: ["_LIBCPP_VERSION", "private", "<unistd.h>", "public"] },
-    { symbol: ["MB_CUR_MAX", "private", "<xlocale.h>", "public"] },
-    { symbol: ["MB_CUR_MAX", "private", "<stdlib.h>", "public"] },
-]

build_tools/iwyu.sh

@@ -1,4 +0,0 @@
-#!/bin/sh
-# Reminder of how to run Include What You Use
-
-make iwyu

build_tools/lint.fish

@@ -1,157 +0,0 @@
-#!/usr/bin/env fish
-#
-# This is meant to be run by "make lint" or "make lint-all". It is not meant to
-# be run directly from a shell prompt.
-#
-set cppchecks warning,performance,portability,information,missingInclude
-set cppcheck_args
-set c_files
-set all no
-set kernel_name (uname -s)
-set machine_type (uname -m)
-
-set -gx CXX $argv[1]
-set -e argv[1]
-
-if test "$argv[1]" = "--all"
-    set all yes
-    set cppchecks "$cppchecks,unusedFunction"
-    set -e argv[1]
-end
-
-if test $kernel_name = Linux
-    # This is an awful hack. However, the include-what-you-use program spews lots of errors like
-    #   /usr/include/unistd.h:226:10: fatal error: 'stddef.h' file not found
-    # if we don't explicitly tell it where to find the system headers on Linux. See
-    # http://stackoverflow.com/questions/19642590/libtooling-cant-find-stddef-h-nor-other-headers/
-    set -l sys_includes (eval $CXX -v -c src/builtin.cpp 2>&1 | \
-        sed -n -e '/^#include <...> search/,/^End of search list/s/^ *//p')[2..-2]
-    set -x CPLUS_INCLUDE_PATH (string join ':' $sys_includes)
-end
-
-# We only want -D and -I options to be passed thru to cppcheck.
-for arg in $argv
-    if string match -q -- '-D*' $arg
-        set cppcheck_args $cppcheck_args $arg
-    else if string match -q -- '-I*' $arg
-        set cppcheck_args $cppcheck_args $arg
-    end
-end
-
-# Not sure when this became necessary but without these flags cppcheck no longer works on macOS.
-# It complains that "Cppcheck cannot find all the include files." It appears that cppcheck used
-# to, but no longer, recognizes the -iquote flag. So switch to hardcoding the appropriate -I flags.
-set cppcheck_args $cppcheck_args -I . -I ./src
-
-if test "$machine_type" = "x86_64"
-    set cppcheck_args -D__x86_64__ -D__LP64__ $cppcheck_args
-end
-
-if test $all = yes
-    set c_files src/*.cpp
-else
-    # We haven't been asked to lint all the source. If there are uncommitted
-    # changes lint those, else lint the files in the most recent commit.
-    # Select (cached files) (modified but not cached, and untracked files)
-    set files (git diff-index --cached HEAD --name-only)
-    set files $files (git ls-files --exclude-standard --others --modified)
-    if not set -q files[1]
-        # No pending changes so lint the files in the most recent commit.
-        set files (git diff-tree --no-commit-id --name-only -r HEAD)
-    end
-
-    # Extract just the C/C++ files that exist.
-    set c_files
-    for file in (string match -r '.*\.c(?:pp)?$' -- $files)
-        test -f $file; and set c_files $c_files $file
-    end
-end
-
-# We now have a list of files to check so run the linters.
-if set -q c_files[1]
-    if type -q iwyu
-        echo
-        echo ========================================
-        echo Running IWYU
-        echo ========================================
-        # The stderr to stdout redirection is because cppcheck, incorrectly IMHO, writes its
-        # diagnostic messages to stderr. Anyone running this who wants to capture its output will
-        # expect those messages to be written to stdout.
-        for c_file in $c_files
-            switch $kernel_name
-                case Darwin
-                    include-what-you-use -Xiwyu --no_default_mappings -Xiwyu \
-                        --mapping_file=build_tools/iwyu.osx.imp --std=c++11 \
-                        $cppcheck_args $c_file 2>&1
-                case Linux
-                    include-what-you-use -Xiwyu --mapping_file=build_tools/iwyu.linux.imp \
-                        $cppcheck_args $c_file 2>&1
-                case '*' # hope for the best
-                    include-what-you-use $cppcheck_args $c_file 2>&1
-            end
-        end
-    end
-
-    if type -q cppcheck
-        echo
-        echo ========================================
-        echo Running cppcheck
-        echo ========================================
-        # The stderr to stdout redirection is because cppcheck, incorrectly IMHO, writes its
-        # diagnostic messages to stderr. Anyone running this who wants to capture its output will
-        # expect those messages to be written to stdout.
-        set -l cn (set_color normal)
-        set -l cb (set_color --bold)
-        set -l cu (set_color --underline)
-        set -l cm (set_color magenta)
-        set -l cbrm (set_color brmagenta)
-        set -l template "[$cb$cu{file}$cn$cb:{line}$cn] $cbrm{severity}$cm ({id}):$cn\n {message}"
-        set cppcheck_args -q --verbose --std=c++11 --std=posix --language=c++ --template $template \
-            --suppress=missingIncludeSystem --inline-suppr --enable=$cppchecks \
-            --rule-file=.cppcheck.rules --suppressions-list=.cppcheck.suppressions $cppcheck_args
-
-        cppcheck $cppcheck_args $c_files 2>&1
-
-        echo
-        echo ========================================
-        echo 'Running `cppcheck --check-config` to identify missing includes similar problems.'
-        echo 'Ignore unmatchedSuppression warnings as they are probably false positives we'
-        echo 'cannot suppress.'
-        echo ========================================
-        cppcheck $cppcheck_args --check-config $c_files 2>&1
-    end
-
-    if type -q oclint
-        echo
-        echo ========================================
-        echo Running oclint
-        echo ========================================
-        # The stderr to stdout redirection is because oclint, incorrectly writes its final summary
-        # counts of the errors detected to stderr. Anyone running this who wants to capture its
-        # output will expect those messages to be written to stdout.
-        if test "$kernel_name" = "Darwin"
-            if not test -f compile_commands.json
-                xcodebuild -alltargets >xcodebuild.log
-                oclint-xcodebuild xcodebuild.log >/dev/null
-            end
-            if test $all = yes
-                oclint-json-compilation-database -e '/pcre2-10.21/' -- -enable-global-analysis 2>&1
-            else
-                set i_files
-                for f in $c_files
-                    set i_files $i_files -i $f
-                end
-                echo oclint-json-compilation-database -e '/pcre2-10.21/' $i_files
-                oclint-json-compilation-database -e '/pcre2-10.21/' $i_files 2>&1
-            end
-        else
-            # Presumably we're on Linux or other platform not requiring special
-            # handling for oclint to work.
-            oclint $c_files -- $argv 2>&1
-        end
-    end
-else
-    echo
-    echo 'WARNING: No C/C++ files to check'
-    echo
-end

build_tools/make_deb.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+# Terminate on error
+set -e
+
+sudo rm -Rf /tmp/fishfish
+mkdir /tmp/fishfish
+git archive --format=tar fish_fish | tar -x -C /tmp/fishfish
+mkdir /tmp/fishfish/doc-pak
+cp README INSTALL CHANGELOG release_notes.html /tmp/fishfish/doc-pak/
+cp build_tools/description-pak /tmp/fishfish/
+cd /tmp/fishfish
+autoconf
+./configure
+make -j 3
+sudo checkinstall --default --pakdir ~/fish_built/ --pkgversion 0.9 make install
+mv ~/fish_built/fishfish_0.9-1_i386.deb ~/fish_built/fishfish_0.9_i386.deb
+

build_tools/make_pkg.sh

@@ -1,15 +1,9 @@
 #!/bin/sh
 
-# Script to produce an OS X installer .pkg and .app(.zip)
-
-VERSION=`git describe --always --dirty 2>/dev/null`
+VERSION=`sed -E -n 's/^.*PACKAGE_VERSION "([0-9.]+)"/\1/p' osx/config.h`
 if test -z "$VERSION" ; then
-  echo "Could not get version from git"
-  VERSION=`sed -E -n 's/^.*PACKAGE_VERSION "([0-9a-z.\-]+)"/\1/p' osx/config.h`
-  if test -z "$VERSION"; then
-    echo "Could not get version from osx/config.h"
-    exit 1
-  fi
+  echo "Could not get version from osx/config.h"
+  exit 1
 fi
 
 echo "Version is $VERSION"
@@ -17,25 +11,13 @@ echo "Version is $VERSION"
 set -x
 
 make distclean
+rm -Rf /tmp/fish_pkg
 
 #Exit on error
 set -e
 
-PKGDIR=`mktemp -d`
+mkdir -p /tmp/fish_pkg/root /tmp/fish_pkg/intermediates /tmp/fish_pkg/dst
+xcodebuild install -scheme install_tree -configuration Release DSTROOT=/tmp/fish_pkg/root/
+pkgbuild --scripts build_tools/osx_package_scripts --root /tmp/fish_pkg/root/ --identifier 'com.ridiculousfish.fish-shell-pkg' --version "$VERSION"  /tmp/fish_pkg/intermediates/fish.pkg
 
-OUTPUT_PATH=${FISH_ARTEFACT_PATH:-~/fish_built}
-
-mkdir -p $PKGDIR/root $PKGDIR/intermediates $PKGDIR/dst
-xcodebuild install -scheme install_tree -configuration Release DSTROOT=$PKGDIR/root/
-pkgbuild --scripts build_tools/osx_package_scripts --root $PKGDIR/root/ --identifier 'com.ridiculousfish.fish-shell-pkg' --version "$VERSION"  $PKGDIR/intermediates/fish.pkg
-
-productbuild  --package-path $PKGDIR/intermediates --distribution build_tools/osx_distribution.xml --resources build_tools/osx_package_resources/ $OUTPUT_PATH/fish-$VERSION.pkg
-
-
-# Make the app
-xcodebuild -scheme fish.app -configuration Release DSTROOT=/tmp/fish_app/ SYMROOT=DerivedData/fish/Build/Products
-
-cd DerivedData/fish/Build/Products/Release/
-zip -r $OUTPUT_PATH/fish-$VERSION.app.zip fish.app
-
-rm -r $PKGDIR
+productbuild  --package-path /tmp/fish_pkg/intermediates --distribution build_tools/osx_distribution.xml --resources build_tools/osx_package_resources/ ~/fish_built/fish.pkg

build_tools/make_tarball.sh

@@ -4,74 +4,43 @@
 # We use git to output a tree. But we also want to build the user documentation
 # and put that in the tarball, so that nobody needs to have doxygen installed
 # to build it.
-# Outputs to $FISH_ARTEFACT_PATH or ~/fish_built by default
 
 # Exit on error
 set -e
 
-# We wil generate a tarball with a prefix "fish-VERSION"
+# We wil generate a tarball with a prefix "fish"
 # git can do that automatically for us via git-archive
-# but to get the documentation in, we need to make a symlink called "fish-VERSION"
+# but to get the documentation in, we need to make a symlink called "fish"
 # and tar from that, so that the documentation gets the right prefix
 
-# We need GNU tar as that supports the --mtime option
-# BSD tar supports --mtree but keeping them in sync sounds too hard
-TAR=notfound
-for try in tar gtar gnutar; do
-  if $try -Pcf /dev/null --mtime now /dev/null >/dev/null 2>&1; then
-    TAR=$try
-    break
-  fi
-done
-
-if [ "$TAR" = "notfound" ]; then
-  echo 'No suitable tar (supporting --mtime) found as tar/gtar/gnutar in PATH'
-  exit 1
-fi
-
 # Get the current directory, which we'll use for symlinks
 wd="$PWD"
 
-# Get the version from git-describe
-VERSION=`git describe --dirty 2>/dev/null`
-
 # The name of the prefix, which is the directory that you get when you untar
-prefix="fish-$VERSION"
+prefix="fish"
 
 # The path where we will output the tar file
-# Defaults to ~/fish_built
-path=${FISH_ARTEFACT_PATH:-~/fish_built}/$prefix.tar
+path=~/fish_built/fish-2.0.tar
 
 # Clean up stuff we've written before
 rm -f "$path" "$path".gz
 
 # git starts the archive
-git archive --format=tar --prefix="$prefix"/ HEAD > "$path"
-
-# tarball out the documentation, generate a configure script and version file
-autoreconf --no-recursive
-./configure --with-doxygen
-make doc share/man
-echo $VERSION > version
-
-PREFIX_TMPDIR=`mktemp -d`
-cd $PREFIX_TMPDIR
+git archive --format=tar --prefix="$prefix"/ master > "$path"
 
+# tarball out the documentation
+make user_doc
+make share/man
+cd /tmp
+rm -f "$prefix"
 ln -s "$wd" "$prefix"
-TAR_APPEND="$TAR --append --file=$path --mtime=now --owner=0 --group=0 --mode=g+w,a+rX"
-$TAR_APPEND --no-recursion "$prefix"/user_doc
-$TAR_APPEND "$prefix"/user_doc/html "$prefix"/share/man
-$TAR_APPEND "$prefix"/version
-$TAR_APPEND "$prefix"/configure "$prefix"/config.h.in
-rm "$prefix"/version
-unlink "$prefix"
-
-cd -
-rmdir $PREFIX_TMPDIR
+tar --append --file="$path" "$prefix"/user_doc/html
+tar --append --file="$path" "$prefix"/share/man
+rm -f "$prefix"
 
 # gzip it
 gzip "$path"
 
 # Output what we did, and the sha1 hash
 echo "Tarball written to $path".gz
-openssl dgst -sha256 "$path".gz
+openssl sha1 "$path".gz

build_tools/osx_package_resources/welcome.rtf

@@ -1,16 +1,15 @@
-{\rtf1\ansi\ansicpg1252\cocoartf1485\cocoasubrtf410
-{\fonttbl\f0\fnil\fcharset0 HelveticaNeue;\f1\fnil\fcharset0 Menlo-Regular;}
+{\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf370
+{\fonttbl\f0\fswiss\fcharset0 Helvetica;\f1\fnil\fcharset0 Monaco;}
 {\colortbl;\red255\green255\blue255;}
-{\*\expandedcolortbl;\csgenericrgb\c100000\c100000\c100000;}
 {\info
 {\author dlkfjslfjsfdlkfk}}\margl1440\margr1440\vieww10800\viewh8400\viewkind0
-\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural\partightenfactor0
+\pard\tx720\tx1440\tx2160\tx2880\tx3600\tx4320\tx5040\tx5760\tx6480\tx7200\tx7920\tx8640\pardirnatural
 
-\f0\fs30 \cf0 Fish is a smart and user friendly command line shell. For more information, visit {\field{\*\fldinst{HYPERLINK "https://fishshell.com"}}{\fldrslt https://fishshell.com}}\
+\f0\fs30 \cf0 The fish shell is a smart and user friendly command line shell. For more information, visit {\field{\*\fldinst{HYPERLINK "http://fishshell.com"}}{\fldrslt http://fishshell.com}}.\
 \
-fish will be installed into 
+fish will be installed into
 \f1\fs26 /usr/local/
-\f0\fs30 , and fish will be added to 
+\f0\fs30 , and fish will be added to
 \f1\fs26 /etc/shells
 \f0\fs30  if necessary.\
 \

build_tools/style.fish

@@ -1,117 +0,0 @@
-#!/usr/bin/env fish
-#
-# This is meant to be run by "make style" or "make style-all". It is not meant to
-# be run directly from a shell prompt although it can be.
-#
-# This runs C++ files and fish scripts (*.fish) through their respective code
-# formatting programs.
-#
-set git_clang_format no
-set c_files
-set f_files
-set all no
-
-if test "$argv[1]" = "--all"
-    set all yes
-    set -e argv[1]
-end
-
-if set -q argv[1]
-    echo "Unexpected arguments: '$argv'"
-    exit 1
-end
-
-if test $all = yes
-    set files (git status --porcelain --short --untracked-files=all | sed -e 's/^ *[^ ]* *//')
-    if set -q files[1]
-        echo
-        echo You have uncommited changes. Cowardly refusing to restyle the entire code base.
-        echo
-        exit 1
-    end
-    set c_files src/*.h src/*.cpp
-    # For now we don't restyle all fish scripts other than completion scripts. That's because people
-    # really like to vertically align the elements of the `complete` command and fish_indent
-    # currently does not honor that whitespace.
-    set f_files (printf '%s\n' share/***.fish | grep -v /completions/)
-else
-    # We haven't been asked to reformat all the source. If there are uncommitted changes reformat
-    # those using `git clang-format`. Else reformat the files in the most recent commit.
-    # Select (cached files) (modified but not cached, and untracked files)
-    set files (git diff-index --cached HEAD --name-only) (git ls-files --exclude-standard --others --modified)
-    if set -q files[1]
-        set git_clang_format yes
-    else
-        # No pending changes so lint the files in the most recent commit.
-        set files (git diff-tree --no-commit-id --name-only -r HEAD)
-    end
-
-    # Extract just the C/C++ files that exist.
-    set c_files
-    for file in (string match -r '^.*\.(?:c|cpp|h)$' -- $files)
-        test -f $file; and set c_files $c_files $file
-    end
-    # Extract just the fish files.
-    set f_files (string match -r '^.*\.fish$' -- $files)
-end
-
-# Run the C++ reformatter if we have any C++ files.
-if set -q c_files[1]
-    if test $git_clang_format = yes
-        if type -q git-clang-format
-            echo
-            echo ========================================
-            echo Running git-clang-format
-            echo ========================================
-            git add $c_files
-            git-clang-format
-        else
-            echo
-            echo 'WARNING: Cannot find git-clang-format command'
-            echo
-        end
-    else if type -q clang-format
-        echo
-        echo ========================================
-        echo Running clang-format
-        echo ========================================
-        for file in $c_files
-            cp $file $file.new # preserves mode bits
-            clang-format $file >$file.new
-            if cmp --quiet $file $file.new
-                echo $file was correctly formatted
-                rm $file.new
-            else
-                echo $file was NOT correctly formatted
-                mv $file.new $file
-            end
-        end
-    else
-        echo
-        echo 'WARNING: Cannot find clang-format command'
-        echo
-    end
-end
-
-# Run the fish reformatter if we have any fish files.
-if set -q f_files[1]
-    if not type -q fish_indent
-        make fish_indent
-        set PATH . $PATH
-    end
-    echo
-    echo ========================================
-    echo Running fish_indent
-    echo ========================================
-    for file in $f_files
-        cp $file $file.new # preserves mode bits
-        fish_indent <$file >$file.new
-        if cmp --quiet $file $file.new
-            echo $file was correctly formatted
-            rm $file.new
-        else
-            echo $file was NOT correctly formatted
-            mv $file.new $file
-        end
-    end
-end

build_tools/xcode_version_gen.sh

@@ -1,17 +0,0 @@
-#!/bin/bash
-# Expects to be called from Xcode (Run Script build phase),
-# write version number C preprocessor macro to header file.
-
-tmp="$SCRIPT_OUTPUT_FILE_1"
-ver="$SCRIPT_OUTPUT_FILE_0"
-
-./build_tools/git_version_gen.sh
-
-cat FISH-BUILD-VERSION-FILE | awk '{printf("#define %s \"%s\"\n",$1,$3)}' > "$tmp"
-
-cmp --quiet "$tmp" "$ver"
-if [ $? -ne 0 ]; then
-    /bin/mv "$tmp" "$ver"
-else
-    /bin/rm "$tmp"
-fi

builtin.h

@@ -0,0 +1,182 @@
+/** \file builtin.h
+  Prototypes for functions for executing builtin functions.
+*/
+
+#ifndef FISH_BUILTIN_H
+#define FISH_BUILTIN_H
+
+#include <wchar.h>
+
+#include "util.h"
+#include "io.h"
+#include "common.h"
+
+class parser_t;
+
+enum
+{
+    COMMAND_NOT_BUILTIN,
+    BUILTIN_REGULAR,
+    BUILTIN_FUNCTION
+}
+;
+
+/**
+   Error message on missing argument
+*/
+#define BUILTIN_ERR_MISSING _( L"%ls: Expected argument\n" )
+
+/**
+   Error message on invalid combination of options
+*/
+#define BUILTIN_ERR_COMBO _( L"%ls: Invalid combination of options\n" )
+
+/**
+   Error message on invalid combination of options
+*/
+#define BUILTIN_ERR_COMBO2 _( L"%ls: Invalid combination of options,\n%ls\n" )
+
+/**
+   Error message on multiple scope levels for variables
+*/
+#define BUILTIN_ERR_GLOCAL _( L"%ls: Variable scope can only be one of universal, global and local\n" )
+
+/**
+   Error message for specifying both export and unexport to set/read
+*/
+#define BUILTIN_ERR_EXPUNEXP _( L"%ls: Variable can't be both exported and unexported\n" )
+
+/**
+   Error message for unknown switch
+*/
+#define BUILTIN_ERR_UNKNOWN  _( L"%ls: Unknown option '%ls'\n" )
+
+/**
+   Error message for invalid character in variable name
+*/
+#define BUILTIN_ERR_VARCHAR _( L"%ls: Invalid character '%lc' in variable name. Only alphanumerical characters and underscores are valid in a variable name.\n" )
+
+/**
+   Error message for invalid (empty) variable name
+*/
+#define BUILTIN_ERR_VARNAME_ZERO _( L"%ls: Variable name can not be the empty string\n" )
+
+/**
+   Error message when second argument to for isn't 'in'
+*/
+#define BUILTIN_FOR_ERR_IN _( L"%ls: Second argument must be 'in'\n" )
+
+/**
+   Error message for insufficient number of arguments
+*/
+#define BUILTIN_FOR_ERR_COUNT _( L"%ls: Expected at least two arguments, got %d\n")
+
+#define BUILTIN_FOR_ERR_NAME _( L"%ls: '%ls' is not a valid variable name\n" )
+
+/** Error messages for 'else if' */
+#define BUILTIN_ELSEIF_ERR_COUNT _( L"%ls: can only take 'if' and then another command as an argument\n")
+#define BUILTIN_ELSEIF_ERR_ARGUMENT _( L"%ls: any second argument must be 'if'\n")
+
+/**
+   Error message when too many arguments are supplied to a builtin
+*/
+#define BUILTIN_ERR_TOO_MANY_ARGUMENTS _( L"%ls: Too many arguments\n" )
+
+/**
+   Error message when block types mismatch in the end builtin, e.g. 'begin; end for'
+*/
+#define BUILTIN_END_BLOCK_MISMATCH _( L"%ls: Block mismatch: '%ls' vs. '%ls'\n" )
+
+/**
+   Error message for unknown block type in the end builtin, e.g. 'begin; end beggin'
+*/
+#define BUILTIN_END_BLOCK_UNKNOWN _( L"%ls: Unknown block type '%ls'\n" )
+
+#define BUILTIN_ERR_NOT_NUMBER _( L"%ls: Argument '%ls' is not a number\n" )
+
+/** Get the string used to represent stdout and stderr */
+const wcstring &get_stdout_buffer();
+const wcstring &get_stderr_buffer();
+
+/** Output an error */
+void builtin_show_error(const wcstring &err);
+
+/**
+   Kludge. Tells builtins if output is to screen
+*/
+extern int builtin_out_redirect;
+
+/**
+   Kludge. Tells builtins if error is to screen
+*/
+extern int builtin_err_redirect;
+
+
+/**
+   Initialize builtin data.
+*/
+void builtin_init();
+
+/**
+   Destroy builtin data.
+*/
+void builtin_destroy();
+
+/**
+  Is there a builtin command with the given name?
+*/
+int builtin_exists(const wcstring &cmd);
+
+/**
+  Execute a builtin command
+
+  \param parser The parser being used
+  \param argv Array containing the command and parameters
+  of the builtin.  The list is terminated by a
+  null pointer. This syntax resembles the syntax
+  for exec.
+  \param io the io redirections to perform on this builtin.
+
+  \return the exit status of the builtin command
+*/
+int builtin_run(parser_t &parser, const wchar_t * const *argv, const io_chain_t &io);
+
+/** Returns a list of all builtin names */
+wcstring_list_t builtin_get_names(void);
+
+/** Insert all builtin names into list. */
+void builtin_get_names(std::vector<completion_t> &list);
+
+/**
+   Pushes a new set of input/output to the stack. The new stdin is supplied, a new set of output strings is created.
+*/
+void builtin_push_io(parser_t &parser, int stdin_fd);
+
+/**
+   Pops a set of input/output from the stack. The output strings are destroued, but the input file is not closed.
+*/
+void builtin_pop_io(parser_t &parser);
+
+
+/**
+   Return a one-line description of the specified builtin.
+*/
+wcstring builtin_get_desc(const wcstring &b);
+
+
+/**
+   Slightly kludgy function used with 'complete -C' in order to make
+   the commandline builtin operate on the string to complete instead
+   of operating on whatever is to be completed.
+*/
+const wchar_t *builtin_complete_get_temporary_buffer();
+
+
+/**
+   Run the __fish_print_help function to obtain the help information
+   for the specified command.
+*/
+
+wcstring builtin_help_get(parser_t &parser, const wchar_t *cmd);
+
+#endif

builtin_commandline.cpp

@@ -0,0 +1,642 @@
+/** \file builtin_commandline.c Functions defining the commandline builtin
+
+Functions used for implementing the commandline builtin.
+
+*/
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <wchar.h>
+#include <wctype.h>
+#include <sys/types.h>
+#include <termios.h>
+#include <signal.h>
+
+#include "fallback.h"
+#include "util.h"
+
+#include "wutil.h"
+#include "builtin.h"
+#include "common.h"
+#include "wgetopt.h"
+#include "reader.h"
+#include "proc.h"
+#include "parser.h"
+#include "tokenizer.h"
+#include "input_common.h"
+#include "input.h"
+
+#include "parse_util.h"
+
+/**
+   Which part of the comandbuffer are we operating on
+*/
+enum
+{
+    STRING_MODE=1, /**< Operate on entire buffer */
+    JOB_MODE, /**< Operate on job under cursor */
+    PROCESS_MODE, /**< Operate on process under cursor */
+    TOKEN_MODE /**< Operate on token under cursor */
+}
+;
+
+/**
+   For text insertion, how should it be done
+*/
+enum
+{
+    REPLACE_MODE=1, /**< Replace current text */
+    INSERT_MODE, /**< Insert at cursor position */
+    APPEND_MODE /**< Insert at end of current token/command/buffer */
+}
+;
+
+/**
+   Pointer to what the commandline builtin considers to be the current
+   contents of the command line buffer.
+ */
+static const wchar_t *current_buffer=0;
+/**
+   What the commandline builtin considers to be the current cursor
+   position.
+ */
+static size_t current_cursor_pos = (size_t)(-1);
+
+/**
+   Returns the current commandline buffer.
+*/
+static const wchar_t *get_buffer()
+{
+    return current_buffer;
+}
+
+/**
+   Returns the position of the cursor
+*/
+static size_t get_cursor_pos()
+{
+    return current_cursor_pos;
+}
+
+
+/**
+   Replace/append/insert the selection with/at/after the specified string.
+
+   \param begin beginning of selection
+   \param end end of selection
+   \param insert the string to insert
+   \param append_mode can be one of REPLACE_MODE, INSERT_MODE or APPEND_MODE, affects the way the test update is performed
+*/
+static void replace_part(const wchar_t *begin,
+                         const wchar_t *end,
+                         const wchar_t *insert,
+                         int append_mode)
+{
+    const wchar_t *buff = get_buffer();
+    size_t out_pos = get_cursor_pos();
+
+    wcstring out;
+
+    out.append(buff, begin - buff);
+
+    switch (append_mode)
+    {
+        case REPLACE_MODE:
+        {
+
+            out.append(insert);
+            out_pos = wcslen(insert) + (begin-buff);
+            break;
+
+        }
+        case APPEND_MODE:
+        {
+            out.append(begin, end-begin);
+            out.append(insert);
+            break;
+        }
+        case INSERT_MODE:
+        {
+            long cursor = get_cursor_pos() -(begin-buff);
+            out.append(begin, cursor);
+            out.append(insert);
+            out.append(begin+cursor, end-begin-cursor);
+            out_pos +=  wcslen(insert);
+            break;
+        }
+    }
+    out.append(end);
+    reader_set_buffer(out, out_pos);
+}
+
+/**
+   Output the specified selection.
+
+   \param begin start of selection
+   \param end  end of selection
+   \param cut_at_cursor whether printing should stop at the surrent cursor position
+   \param tokenize whether the string should be tokenized, printing one string token on every line and skipping non-string tokens
+*/
+static void write_part(const wchar_t *begin,
+                       const wchar_t *end,
+                       int cut_at_cursor,
+                       int tokenize)
+{
+    wcstring out;
+    wchar_t *buff;
+    size_t pos;
+
+    pos = get_cursor_pos()-(begin-get_buffer());
+
+    if (tokenize)
+    {
+        buff = wcsndup(begin, end-begin);
+//    fwprintf( stderr, L"Subshell: %ls, end char %lc\n", buff, *end );
+        out.clear();
+        tokenizer_t tok(buff, TOK_ACCEPT_UNFINISHED);
+        for (; tok_has_next(&tok); tok_next(&tok))
+        {
+            if ((cut_at_cursor) &&
+                    (tok_get_pos(&tok)+wcslen(tok_last(&tok)) >= pos))
+                break;
+
+            switch (tok_last_type(&tok))
+            {
+                case TOK_STRING:
+                {
+                    out.append(escape_string(tok_last(&tok), UNESCAPE_INCOMPLETE));
+                    out.push_back(L'\n');
+                    break;
+                }
+
+            }
+        }
+
+        stdout_buffer.append(out);
+
+        free(buff);
+    }
+    else
+    {
+        if (cut_at_cursor)
+        {
+            end = begin+pos;
+        }
+
+//    debug( 0, L"woot2 %ls -> %ls", buff, esc );
+
+        stdout_buffer.append(begin, end - begin);
+        stdout_buffer.append(L"\n");
+
+    }
+}
+
+
+/**
+   The commandline builtin. It is used for specifying a new value for
+   the commandline.
+*/
+static int builtin_commandline(parser_t &parser, wchar_t **argv)
+{
+
+    int buffer_part=0;
+    int cut_at_cursor=0;
+
+    int argc = builtin_count_args(argv);
+    int append_mode=0;
+
+    int function_mode = 0;
+
+    int tokenize = 0;
+
+    int cursor_mode = 0;
+    int line_mode = 0;
+    int search_mode = 0;
+    const wchar_t *begin, *end;
+
+    current_buffer = (wchar_t *)builtin_complete_get_temporary_buffer();
+    if (current_buffer)
+    {
+        current_cursor_pos = wcslen(current_buffer);
+    }
+    else
+    {
+        current_buffer = reader_get_buffer();
+        current_cursor_pos = reader_get_cursor_pos();
+    }
+
+    if (!get_buffer())
+    {
+        if (is_interactive_session)
+        {
+            /*
+              Prompt change requested while we don't have
+              a prompt, most probably while reading the
+              init files. Just ignore it.
+            */
+            return 1;
+        }
+
+        stderr_buffer.append(argv[0]);
+        stderr_buffer.append(L": Can not set commandline in non-interactive mode\n");
+        builtin_print_help(parser, argv[0], stderr_buffer);
+        return 1;
+    }
+
+    woptind=0;
+
+    while (1)
+    {
+        static const struct woption
+                long_options[] =
+        {
+            {
+                L"append", no_argument, 0, 'a'
+            }
+            ,
+            {
+                L"insert", no_argument, 0, 'i'
+            }
+            ,
+            {
+                L"replace", no_argument, 0, 'r'
+            }
+            ,
+            {
+                L"current-job", no_argument, 0, 'j'
+            }
+            ,
+            {
+                L"current-process", no_argument, 0, 'p'
+            }
+            ,
+            {
+                L"current-token", no_argument, 0, 't'
+            }
+            ,
+            {
+                L"current-buffer", no_argument, 0, 'b'
+            }
+            ,
+            {
+                L"cut-at-cursor", no_argument, 0, 'c'
+            }
+            ,
+            {
+                L"function", no_argument, 0, 'f'
+            }
+            ,
+            {
+                L"tokenize", no_argument, 0, 'o'
+            }
+            ,
+            {
+                L"help", no_argument, 0, 'h'
+            }
+            ,
+            {
+                L"input", required_argument, 0, 'I'
+            }
+            ,
+            {
+                L"cursor", no_argument, 0, 'C'
+            }
+            ,
+            {
+                L"line", no_argument, 0, 'L'
+            }
+            ,
+            {
+                L"search-mode", no_argument, 0, 'S'
+            }
+            ,
+            {
+                0, 0, 0, 0
+            }
+        }
+        ;
+
+        int opt_index = 0;
+
+        int opt = wgetopt_long(argc,
+                               argv,
+                               L"abijpctwforhI:CLS",
+                               long_options,
+                               &opt_index);
+        if (opt == -1)
+            break;
+
+        switch (opt)
+        {
+            case 0:
+                if (long_options[opt_index].flag != 0)
+                    break;
+                append_format(stderr_buffer,
+                              BUILTIN_ERR_UNKNOWN,
+                              argv[0],
+                              long_options[opt_index].name);
+                builtin_print_help(parser, argv[0], stderr_buffer);
+
+                return 1;
+
+            case L'a':
+                append_mode = APPEND_MODE;
+                break;
+
+            case L'b':
+                buffer_part = STRING_MODE;
+                break;
+
+
+            case L'i':
+                append_mode = INSERT_MODE;
+                break;
+
+            case L'r':
+                append_mode = REPLACE_MODE;
+                break;
+
+            case 'c':
+                cut_at_cursor=1;
+                break;
+
+            case 't':
+                buffer_part = TOKEN_MODE;
+                break;
+
+            case 'j':
+                buffer_part = JOB_MODE;
+                break;
+
+            case 'p':
+                buffer_part = PROCESS_MODE;
+                break;
+
+            case 'f':
+                function_mode=1;
+                break;
+
+            case 'o':
+                tokenize=1;
+                break;
+
+            case 'I':
+                current_buffer = woptarg;
+                current_cursor_pos = wcslen(woptarg);
+                break;
+
+            case 'C':
+                cursor_mode = 1;
+                break;
+
+            case 'L':
+                line_mode = 1;
+                break;
+
+            case 'S':
+                search_mode = 1;
+                break;
+
+            case 'h':
+                builtin_print_help(parser, argv[0], stdout_buffer);
+                return 0;
+
+            case L'?':
+                builtin_unknown_option(parser, argv[0], argv[woptind-1]);
+                return 1;
+        }
+    }
+
+    if (function_mode)
+    {
+        int i;
+
+        /*
+          Check for invalid switch combinations
+        */
+        if (buffer_part || cut_at_cursor || append_mode || tokenize || cursor_mode || line_mode || search_mode)
+        {
+            append_format(stderr_buffer,
+                          BUILTIN_ERR_COMBO,
+                          argv[0]);
+
+            builtin_print_help(parser, argv[0], stderr_buffer);
+            return 1;
+        }
+
+
+        if (argc == woptind)
+        {
+            append_format(stderr_buffer,
+                          BUILTIN_ERR_MISSING,
+                          argv[0]);
+
+            builtin_print_help(parser, argv[0], stderr_buffer);
+            return 1;
+        }
+        for (i=woptind; i<argc; i++)
+        {
+            wchar_t c = input_function_get_code(argv[i]);
+            if (c != (wchar_t)(-1))
+            {
+                /*
+                  input_unreadch inserts the specified keypress or
+                  readline function at the top of the stack of unused
+                  keypresses
+                */
+                input_unreadch(c);
+            }
+            else
+            {
+                append_format(stderr_buffer,
+                              _(L"%ls: Unknown input function '%ls'\n"),
+                              argv[0],
+                              argv[i]);
+                builtin_print_help(parser, argv[0], stderr_buffer);
+                return 1;
+            }
+        }
+
+        return 0;
+    }
+
+    /*
+      Check for invalid switch combinations
+    */
+    if ((search_mode || line_mode || cursor_mode) && (argc-woptind > 1))
+    {
+
+        append_format(stderr_buffer,
+                      argv[0],
+                      L": Too many arguments\n",
+                      NULL);
+        builtin_print_help(parser, argv[0], stderr_buffer);
+        return 1;
+    }
+
+    if ((buffer_part || tokenize || cut_at_cursor) && (cursor_mode || line_mode || search_mode))
+    {
+        append_format(stderr_buffer,
+                      BUILTIN_ERR_COMBO,
+                      argv[0]);
+
+        builtin_print_help(parser, argv[0], stderr_buffer);
+        return 1;
+    }
+
+
+    if ((tokenize || cut_at_cursor) && (argc-woptind))
+    {
+        append_format(stderr_buffer,
+                      BUILTIN_ERR_COMBO2,
+                      argv[0],
+                      L"--cut-at-cursor and --tokenize can not be used when setting the commandline");
+
+
+        builtin_print_help(parser, argv[0], stderr_buffer);
+        return 1;
+    }
+
+    if (append_mode && !(argc-woptind))
+    {
+        append_format(stderr_buffer,
+                      BUILTIN_ERR_COMBO2,
+                      argv[0],
+                      L"insertion mode switches can not be used when not in insertion mode");
+
+        builtin_print_help(parser, argv[0], stderr_buffer);
+        return 1;
+    }
+
+    /*
+      Set default modes
+    */
+    if (!append_mode)
+    {
+        append_mode = REPLACE_MODE;
+    }
+
+    if (!buffer_part)
+    {
+        buffer_part = STRING_MODE;
+    }
+
+    if (cursor_mode)
+    {
+        if (argc-woptind)
+        {
+            wchar_t *endptr;
+            long new_pos;
+            errno = 0;
+
+            new_pos = wcstol(argv[woptind], &endptr, 10);
+            if (*endptr || errno)
+            {
+                append_format(stderr_buffer,
+                              BUILTIN_ERR_NOT_NUMBER,
+                              argv[0],
+                              argv[woptind]);
+                builtin_print_help(parser, argv[0], stderr_buffer);
+            }
+
+            current_buffer = reader_get_buffer();
+            new_pos = maxi(0L, mini(new_pos, (long)wcslen(current_buffer)));
+            reader_set_buffer(current_buffer, (size_t)new_pos);
+            return 0;
+        }
+        else
+        {
+            append_format(stdout_buffer, L"%lu\n", (unsigned long)reader_get_cursor_pos());
+            return 0;
+        }
+
+    }
+
+    if (line_mode)
+    {
+        size_t pos = reader_get_cursor_pos();
+        const wchar_t *buff = reader_get_buffer();
+        append_format(stdout_buffer, L"%lu\n", (unsigned long)parse_util_lineno(buff, pos));
+        return 0;
+
+    }
+
+    if (search_mode)
+    {
+        return !reader_search_mode();
+    }
+
+
+    switch (buffer_part)
+    {
+        case STRING_MODE:
+        {
+            begin = get_buffer();
+            end = begin+wcslen(begin);
+            break;
+        }
+
+        case PROCESS_MODE:
+        {
+            parse_util_process_extent(get_buffer(),
+                                      get_cursor_pos(),
+                                      &begin,
+                                      &end);
+            break;
+        }
+
+        case JOB_MODE:
+        {
+            parse_util_job_extent(get_buffer(),
+                                  get_cursor_pos(),
+                                  &begin,
+                                  &end);
+            break;
+        }
+
+        case TOKEN_MODE:
+        {
+            parse_util_token_extent(get_buffer(),
+                                    get_cursor_pos(),
+                                    &begin,
+                                    &end,
+                                    0, 0);
+            break;
+        }
+
+    }
+
+    switch (argc-woptind)
+    {
+        case 0:
+        {
+            write_part(begin, end, cut_at_cursor, tokenize);
+            break;
+        }
+
+        case 1:
+        {
+            replace_part(begin, end, argv[woptind], append_mode);
+            break;
+        }
+
+        default:
+        {
+            wcstring sb = argv[woptind];
+            int i;
+
+            for (i=woptind+1; i<argc; i++)
+            {
+                sb.push_back(L'\n');
+                sb.append(argv[i]);
+            }
+
+            replace_part(begin, end, sb.c_str(), append_mode);
+
+            break;
+        }
+    }
+
+    return 0;
+}

builtin_complete.cpp

@@ -0,0 +1,626 @@
+/** \file builtin_complete.c Functions defining the complete builtin
+
+Functions used for implementing the complete builtin.
+
+*/
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <wchar.h>
+#include <wctype.h>
+#include <sys/types.h>
+#include <termios.h>
+#include <signal.h>
+
+#include "fallback.h"
+#include "util.h"
+
+#include "wutil.h"
+#include "builtin.h"
+#include "common.h"
+#include "complete.h"
+#include "wgetopt.h"
+#include "parser.h"
+#include "reader.h"
+
+
+/**
+   Internal storage for the builtin_complete_get_temporary_buffer() function.
+*/
+static const wchar_t *temporary_buffer;
+
+/*
+  builtin_complete_* are a set of rather silly looping functions that
+  make sure that all the proper combinations of complete_add or
+  complete_remove get called. This is needed since complete allows you
+  to specify multiple switches on a single commandline, like 'complete
+  -s a -s b -s c', but the complete_add function only accepts one
+  short switch and one long switch.
+*/
+
+/**
+   Silly function
+*/
+static void  builtin_complete_add2(const wchar_t *cmd,
+                                   int cmd_type,
+                                   const wchar_t *short_opt,
+                                   const wcstring_list_t &gnu_opt,
+                                   const wcstring_list_t &old_opt,
+                                   int result_mode,
+                                   const wchar_t *condition,
+                                   const wchar_t *comp,
+                                   const wchar_t *desc,
+                                   int flags)
+{
+    size_t i;
+    const wchar_t *s;
+
+    for (s=short_opt; *s; s++)
+    {
+        complete_add(cmd,
+                     cmd_type,
+                     *s,
+                     0,
+                     0,
+                     result_mode,
+                     condition,
+                     comp,
+                     desc,
+                     flags);
+    }
+
+    for (i=0; i<gnu_opt.size(); i++)
+    {
+        complete_add(cmd,
+                     cmd_type,
+                     0,
+                     gnu_opt.at(i).c_str(),
+                     0,
+                     result_mode,
+                     condition,
+                     comp,
+                     desc,
+                     flags);
+    }
+
+    for (i=0; i<old_opt.size(); i++)
+    {
+        complete_add(cmd,
+                     cmd_type,
+                     0,
+                     old_opt.at(i).c_str(),
+                     1,
+                     result_mode,
+                     condition,
+                     comp,
+                     desc,
+                     flags);
+    }
+
+    if (old_opt.empty() && gnu_opt.empty() && wcslen(short_opt) == 0)
+    {
+        complete_add(cmd,
+                     cmd_type,
+                     0,
+                     0,
+                     0,
+                     result_mode,
+                     condition,
+                     comp,
+                     desc,
+                     flags);
+    }
+}
+
+/**
+   Silly function
+*/
+static void  builtin_complete_add(const wcstring_list_t &cmd,
+                                  const wcstring_list_t &path,
+                                  const wchar_t *short_opt,
+                                  wcstring_list_t &gnu_opt,
+                                  wcstring_list_t &old_opt,
+                                  int result_mode,
+                                  int authoritative,
+                                  const wchar_t *condition,
+                                  const wchar_t *comp,
+                                  const wchar_t *desc,
+                                  int flags)
+{
+    for (size_t i=0; i<cmd.size(); i++)
+    {
+        builtin_complete_add2(cmd.at(i).c_str(),
+                              COMMAND,
+                              short_opt,
+                              gnu_opt,
+                              old_opt,
+                              result_mode,
+                              condition,
+                              comp,
+                              desc,
+                              flags);
+
+        if (authoritative != -1)
+        {
+            complete_set_authoritative(cmd.at(i).c_str(),
+                                       COMMAND,
+                                       authoritative);
+        }
+
+    }
+
+    for (size_t i=0; i<path.size(); i++)
+    {
+        builtin_complete_add2(path.at(i).c_str(),
+                              PATH,
+                              short_opt,
+                              gnu_opt,
+                              old_opt,
+                              result_mode,
+                              condition,
+                              comp,
+                              desc,
+                              flags);
+
+        if (authoritative != -1)
+        {
+            complete_set_authoritative(path.at(i).c_str(),
+                                       PATH,
+                                       authoritative);
+        }
+
+    }
+}
+
+/**
+   Silly function
+*/
+static void builtin_complete_remove3(const wchar_t *cmd,
+                                     int cmd_type,
+                                     wchar_t short_opt,
+                                     const wcstring_list_t &long_opt)
+{
+    for (size_t i=0; i<long_opt.size(); i++)
+    {
+        complete_remove(cmd,
+                        cmd_type,
+                        short_opt,
+                        long_opt.at(i).c_str());
+    }
+}
+
+/**
+   Silly function
+*/
+static void  builtin_complete_remove2(const wchar_t *cmd,
+                                      int cmd_type,
+                                      const wchar_t *short_opt,
+                                      const wcstring_list_t &gnu_opt,
+                                      const wcstring_list_t &old_opt)
+{
+    const wchar_t *s = (wchar_t *)short_opt;
+    if (*s)
+    {
+        for (; *s; s++)
+        {
+            if (old_opt.empty() && gnu_opt.empty())
+            {
+                complete_remove(cmd,
+                                cmd_type,
+                                *s,
+                                0);
+
+            }
+            else
+            {
+                builtin_complete_remove3(cmd,
+                                         cmd_type,
+                                         *s,
+                                         gnu_opt);
+                builtin_complete_remove3(cmd,
+                                         cmd_type,
+                                         *s,
+                                         old_opt);
+            }
+        }
+    }
+    else
+    {
+        builtin_complete_remove3(cmd,
+                                 cmd_type,
+                                 0,
+                                 gnu_opt);
+        builtin_complete_remove3(cmd,
+                                 cmd_type,
+                                 0,
+                                 old_opt);
+
+    }
+
+
+}
+
+/**
+   Silly function
+*/
+static void  builtin_complete_remove(const wcstring_list_t &cmd,
+                                     const wcstring_list_t &path,
+                                     const wchar_t *short_opt,
+                                     const wcstring_list_t &gnu_opt,
+                                     const wcstring_list_t &old_opt)
+{
+    for (size_t i=0; i<cmd.size(); i++)
+    {
+        builtin_complete_remove2(cmd.at(i).c_str(),
+                                 COMMAND,
+                                 short_opt,
+                                 gnu_opt,
+                                 old_opt);
+    }
+
+    for (size_t i=0; i<path.size(); i++)
+    {
+        builtin_complete_remove2(path.at(i).c_str(),
+                                 PATH,
+                                 short_opt,
+                                 gnu_opt,
+                                 old_opt);
+    }
+
+}
+
+
+const wchar_t *builtin_complete_get_temporary_buffer()
+{
+    ASSERT_IS_MAIN_THREAD();
+    return temporary_buffer;
+}
+
+/**
+   The complete builtin. Used for specifying programmable
+   tab-completions. Calls the functions in complete.c for any heavy
+   lifting. Defined in builtin_complete.c
+*/
+static int builtin_complete(parser_t &parser, wchar_t **argv)
+{
+    ASSERT_IS_MAIN_THREAD();
+    bool res=false;
+    int argc=0;
+    int result_mode=SHARED;
+    int remove = 0;
+    int authoritative = -1;
+    int flags = COMPLETE_AUTO_SPACE;
+
+    wcstring short_opt;
+    wcstring_list_t gnu_opt, old_opt;
+    const wchar_t *comp=L"", *desc=L"", *condition=L"";
+
+    bool do_complete = false;
+    wcstring do_complete_param;
+
+    wcstring_list_t cmd;
+    wcstring_list_t path;
+
+    static int recursion_level=0;
+
+    argc = builtin_count_args(argv);
+
+    woptind=0;
+
+    while (! res)
+    {
+        static const struct woption
+                long_options[] =
+        {
+            {
+                L"exclusive", no_argument, 0, 'x'
+            }
+            ,
+            {
+                L"no-files", no_argument, 0, 'f'
+            }
+            ,
+            {
+                L"require-parameter", no_argument, 0, 'r'
+            }
+            ,
+            {
+                L"path", required_argument, 0, 'p'
+            }
+            ,
+            {
+                L"command", required_argument, 0, 'c'
+            }
+            ,
+            {
+                L"short-option", required_argument, 0, 's'
+            }
+            ,
+            {
+                L"long-option", required_argument, 0, 'l'
+            }
+            ,
+            {
+                L"old-option", required_argument, 0, 'o'
+            }
+            ,
+            {
+                L"description", required_argument, 0, 'd'
+            }
+            ,
+            {
+                L"arguments", required_argument, 0, 'a'
+            }
+            ,
+            {
+                L"erase", no_argument, 0, 'e'
+            }
+            ,
+            {
+                L"unauthoritative", no_argument, 0, 'u'
+            }
+            ,
+            {
+                L"authoritative", no_argument, 0, 'A'
+            }
+            ,
+            {
+                L"condition", required_argument, 0, 'n'
+            }
+            ,
+            {
+                L"do-complete", optional_argument, 0, 'C'
+            }
+            ,
+            {
+                L"help", no_argument, 0, 'h'
+            }
+            ,
+            {
+                0, 0, 0, 0
+            }
+        }
+        ;
+
+        int opt_index = 0;
+
+        int opt = wgetopt_long(argc,
+                               argv,
+                               L"a:c:p:s:l:o:d:frxeuAn:C::h",
+                               long_options,
+                               &opt_index);
+        if (opt == -1)
+            break;
+
+        switch (opt)
+        {
+            case 0:
+                if (long_options[opt_index].flag != 0)
+                    break;
+                append_format(stderr_buffer,
+                              BUILTIN_ERR_UNKNOWN,
+                              argv[0],
+                              long_options[opt_index].name);
+                builtin_print_help(parser, argv[0], stderr_buffer);
+
+
+                res = true;
+                break;
+
+            case 'x':
+                result_mode |= EXCLUSIVE;
+                break;
+
+            case 'f':
+                result_mode |= NO_FILES;
+                break;
+
+            case 'r':
+                result_mode |= NO_COMMON;
+                break;
+
+            case 'p':
+            case 'c':
+            {
+                wcstring tmp = woptarg;
+                if (unescape_string(tmp, 1))
+                {
+                    if (opt=='p')
+                        path.push_back(tmp);
+                    else
+                        cmd.push_back(tmp);
+                }
+                else
+                {
+                    append_format(stderr_buffer, L"%ls: Invalid token '%ls'\n", argv[0], woptarg);
+                    res = true;
+                }
+                break;
+            }
+
+            case 'd':
+                desc = woptarg;
+                break;
+
+            case 'u':
+                authoritative=0;
+                break;
+
+            case 'A':
+                authoritative=1;
+                break;
+
+            case 's':
+                short_opt.append(woptarg);
+                break;
+
+            case 'l':
+                gnu_opt.push_back(woptarg);
+                break;
+
+            case 'o':
+                old_opt.push_back(woptarg);
+                break;
+
+            case 'a':
+                comp = woptarg;
+                break;
+
+            case 'e':
+                remove = 1;
+                break;
+
+            case 'n':
+                condition = woptarg;
+                break;
+
+            case 'C':
+                do_complete = true;
+                do_complete_param = woptarg ? woptarg : reader_get_buffer();
+                break;
+
+            case 'h':
+                builtin_print_help(parser, argv[0], stdout_buffer);
+                return 0;
+
+            case '?':
+                builtin_unknown_option(parser, argv[0], argv[woptind-1]);
+                res = true;
+                break;
+
+        }
+
+    }
+
+    if (!res)
+    {
+        if (condition && wcslen(condition))
+        {
+            if (parser.test(condition))
+            {
+                append_format(stderr_buffer,
+                              L"%ls: Condition '%ls' contained a syntax error\n",
+                              argv[0],
+                              condition);
+
+                parser.test(condition, NULL, &stderr_buffer, argv[0]);
+
+                res = true;
+            }
+        }
+    }
+
+    if (!res)
+    {
+        if (comp && wcslen(comp))
+        {
+            if (parser.test_args(comp, 0, 0))
+            {
+                append_format(stderr_buffer,
+                              L"%ls: Completion '%ls' contained a syntax error\n",
+                              argv[0],
+                              comp);
+
+                parser.test_args(comp, &stderr_buffer, argv[0]);
+
+                res = true;
+            }
+        }
+    }
+
+    if (!res)
+    {
+        if (do_complete)
+        {
+            const wchar_t *token;
+
+            parse_util_token_extent(do_complete_param.c_str(), do_complete_param.size(), &token, 0, 0, 0);
+
+            const wchar_t *prev_temporary_buffer = temporary_buffer;
+            temporary_buffer = do_complete_param.c_str();
+
+            if (recursion_level < 1)
+            {
+                recursion_level++;
+
+                std::vector<completion_t> comp;
+                complete(do_complete_param, comp, COMPLETION_REQUEST_DEFAULT);
+
+                for (size_t i=0; i< comp.size() ; i++)
+                {
+                    const completion_t &next =  comp.at(i);
+
+                    const wchar_t *prepend;
+
+                    if (next.flags & COMPLETE_REPLACES_TOKEN)
+                    {
+                        prepend = L"";
+                    }
+                    else
+                    {
+                        prepend = token;
+                    }
+
+
+                    if (!(next.description).empty())
+                    {
+                        append_format(stdout_buffer, L"%ls%ls\t%ls\n", prepend, next.completion.c_str(), next.description.c_str());
+                    }
+                    else
+                    {
+                        append_format(stdout_buffer, L"%ls%ls\n", prepend, next.completion.c_str());
+                    }
+                }
+
+                recursion_level--;
+            }
+
+            temporary_buffer = prev_temporary_buffer;
+
+        }
+        else if (woptind != argc)
+        {
+            append_format(stderr_buffer,
+                          _(L"%ls: Too many arguments\n"),
+                          argv[0]);
+            builtin_print_help(parser, argv[0], stderr_buffer);
+
+            res = true;
+        }
+        else if (cmd.empty() && path.empty())
+        {
+            /* No arguments specified, meaning we print the definitions of
+             * all specified completions to stdout.*/
+            complete_print(stdout_buffer);
+        }
+        else
+        {
+            if (remove)
+            {
+                builtin_complete_remove(cmd,
+                                        path,
+                                        short_opt.c_str(),
+                                        gnu_opt,
+                                        old_opt);
+            }
+            else
+            {
+                builtin_complete_add(cmd,
+                                     path,
+                                     short_opt.c_str(),
+                                     gnu_opt,
+                                     old_opt,
+                                     result_mode,
+                                     authoritative,
+                                     condition,
+                                     comp,
+                                     desc,
+                                     flags);
+            }
+
+        }
+    }
+
+    return res ? 1 : 0;
+}

builtin_jobs.cpp

@@ -0,0 +1,351 @@
+/** \file builtin_jobs.c
+  Functions for executing the jobs builtin.
+*/
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <wchar.h>
+#include <unistd.h>
+#include <termios.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <wctype.h>
+
+#include "fallback.h"
+#include "util.h"
+
+#include "wutil.h"
+#include "builtin.h"
+#include "proc.h"
+#include "parser.h"
+#include "common.h"
+#include "wgetopt.h"
+
+
+/**
+   Print modes for the jobs builtin
+*/
+enum
+{
+    JOBS_DEFAULT, /**< Print lots of general info */
+    JOBS_PRINT_PID, /**< Print pid of each process in job */
+    JOBS_PRINT_COMMAND, /**< Print command name of each process in job */
+    JOBS_PRINT_GROUP, /**< Print group id of job */
+}
+;
+
+
+
+#ifdef HAVE__PROC_SELF_STAT
+/**
+   Calculates the cpu usage (in percent) of the specified job.
+*/
+static int cpu_use(const job_t *j)
+{
+    double u=0;
+    process_t *p;
+
+    for (p=j->first_process; p; p=p->next)
+    {
+        struct timeval t;
+        int jiffies;
+        gettimeofday(&t, 0);
+        jiffies = proc_get_jiffies(p);
+
+        double t1 = 1000000.0*p->last_time.tv_sec+p->last_time.tv_usec;
+        double t2 = 1000000.0*t.tv_sec+t.tv_usec;
+
+        /*    fwprintf( stderr, L"t1 %f t2 %f p1 %d p2 %d\n",
+          t1, t2, jiffies, p->last_jiffies );
+        */
+
+        u += ((double)(jiffies-p->last_jiffies))/(t2-t1);
+    }
+    return u*1000000;
+}
+#endif
+
+/**
+   Print information about the specified job
+*/
+static void builtin_jobs_print(const job_t *j, int mode, int header)
+{
+    process_t *p;
+    switch (mode)
+    {
+        case JOBS_DEFAULT:
+        {
+
+            if (header)
+            {
+                /*
+                  Print table header before first job
+                */
+                stdout_buffer.append(_(L"Job\tGroup\t"));
+#ifdef HAVE__PROC_SELF_STAT
+                stdout_buffer.append(_(L"CPU\t"));
+#endif
+                stdout_buffer.append(_(L"State\tCommand\n"));
+            }
+
+            append_format(stdout_buffer, L"%d\t%d\t", j->job_id, j->pgid);
+
+#ifdef HAVE__PROC_SELF_STAT
+            append_format(stdout_buffer, L"%d%%\t", cpu_use(j));
+#endif
+            stdout_buffer.append(job_is_stopped(j)?_(L"stopped"):_(L"running"));
+            stdout_buffer.append(L"\t");
+            stdout_buffer.append(j->command_wcstr());
+            stdout_buffer.append(L"\n");
+            break;
+        }
+
+        case JOBS_PRINT_GROUP:
+        {
+            if (header)
+            {
+                /*
+                  Print table header before first job
+                */
+                stdout_buffer.append(_(L"Group\n"));
+            }
+            append_format(stdout_buffer, L"%d\n", j->pgid);
+            break;
+        }
+
+        case JOBS_PRINT_PID:
+        {
+            if (header)
+            {
+                /*
+                  Print table header before first job
+                */
+                stdout_buffer.append(_(L"Procces\n"));
+            }
+
+            for (p=j->first_process; p; p=p->next)
+            {
+                append_format(stdout_buffer, L"%d\n", p->pid);
+            }
+            break;
+        }
+
+        case JOBS_PRINT_COMMAND:
+        {
+            if (header)
+            {
+                /*
+                  Print table header before first job
+                */
+                stdout_buffer.append(_(L"Command\n"));
+            }
+
+            for (p=j->first_process; p; p=p->next)
+            {
+                append_format(stdout_buffer, L"%ls\n", p->argv0());
+            }
+            break;
+        }
+    }
+
+}
+
+
+
+/**
+   The jobs builtin. Used fopr printing running jobs. Defined in builtin_jobs.c.
+*/
+static int builtin_jobs(parser_t &parser, wchar_t **argv)
+{
+    int argc=0;
+    int found=0;
+    int mode=JOBS_DEFAULT;
+    int print_last = 0;
+    const job_t *j;
+
+    argc = builtin_count_args(argv);
+    woptind=0;
+
+    while (1)
+    {
+        static const struct woption
+                long_options[] =
+        {
+            {
+                L"pid", no_argument, 0, 'p'
+            }
+            ,
+            {
+                L"command", no_argument, 0, 'c'
+            }
+            ,
+            {
+                L"group", no_argument, 0, 'g'
+            }
+            ,
+            {
+                L"last", no_argument, 0, 'l'
+            }
+            ,
+            {
+                L"help", no_argument, 0, 'h'
+            }
+            ,
+            {
+                0, 0, 0, 0
+            }
+        }
+        ;
+
+        int opt_index = 0;
+
+        int opt = wgetopt_long(argc,
+                               argv,
+                               L"pclgh",
+                               long_options,
+                               &opt_index);
+        if (opt == -1)
+            break;
+
+        switch (opt)
+        {
+            case 0:
+                if (long_options[opt_index].flag != 0)
+                    break;
+                append_format(stderr_buffer,
+                              BUILTIN_ERR_UNKNOWN,
+                              argv[0],
+                              long_options[opt_index].name);
+
+                builtin_print_help(parser, argv[0], stderr_buffer);
+
+
+                return 1;
+
+
+            case 'p':
+                mode=JOBS_PRINT_PID;
+                break;
+
+            case 'c':
+                mode=JOBS_PRINT_COMMAND;
+                break;
+
+            case 'g':
+                mode=JOBS_PRINT_GROUP;
+                break;
+
+            case 'l':
+            {
+                print_last = 1;
+                break;
+            }
+
+            case 'h':
+                builtin_print_help(parser, argv[0], stdout_buffer);
+                return 0;
+
+            case '?':
+                builtin_unknown_option(parser, argv[0], argv[woptind-1]);
+                return 1;
+
+        }
+    }
+
+
+    /*
+      Do not babble if not interactive
+    */
+    if (builtin_out_redirect)
+    {
+        found=1;
+    }
+
+    if (print_last)
+    {
+        /*
+          Ignore unconstructed jobs, i.e. ourself.
+        */
+        job_iterator_t jobs;
+        const job_t *j;
+        while ((j = jobs.next()))
+        {
+
+            if ((j->flags & JOB_CONSTRUCTED) && !job_is_completed(j))
+            {
+                builtin_jobs_print(j, mode, !found);
+                return 0;
+            }
+        }
+
+    }
+    else
+    {
+        if (woptind < argc)
+        {
+            int i;
+
+            found = 1;
+
+            for (i=woptind; i<argc; i++)
+            {
+                int pid;
+                wchar_t *end;
+                errno=0;
+                pid=fish_wcstoi(argv[i], &end, 10);
+                if (errno || *end)
+                {
+                    append_format(stderr_buffer,
+                                  _(L"%ls: '%ls' is not a job\n"),
+                                  argv[0],
+                                  argv[i]);
+                    return 1;
+                }
+
+                j = job_get_from_pid(pid);
+
+                if (j && !job_is_completed(j))
+                {
+                    builtin_jobs_print(j, mode, !found);
+                }
+                else
+                {
+                    append_format(stderr_buffer,
+                                  _(L"%ls: No suitable job: %d\n"),
+                                  argv[0],
+                                  pid);
+                    return 1;
+                }
+            }
+        }
+        else
+        {
+            job_iterator_t jobs;
+            const job_t *j;
+            while ((j = jobs.next()))
+            {
+                /*
+                  Ignore unconstructed jobs, i.e. ourself.
+                */
+                if ((j->flags & JOB_CONSTRUCTED) && !job_is_completed(j))
+                {
+                    builtin_jobs_print(j, mode, !found);
+                    found = 1;
+                }
+            }
+        }
+    }
+
+    if (!found)
+    {
+        append_format(stdout_buffer,
+                      _(L"%ls: There are no jobs\n"),
+                      argv[0]);
+    }
+
+    return 0;
+}
+

builtin_printf.cpp

@@ -0,0 +1,777 @@
+/* printf - format and print data
+   Copyright (C) 1990-2007 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* Usage: printf format [argument...]
+
+   A front end to the printf function that lets it be used from the shell.
+
+   Backslash escapes:
+
+   \" = double quote
+   \\ = backslash
+   \a = alert (bell)
+   \b = backspace
+   \c = produce no further output
+   \f = form feed
+   \n = new line
+   \r = carriage return
+   \t = horizontal tab
+   \v = vertical tab
+   \ooo = octal number (ooo is 1 to 3 digits)
+   \xhh = hexadecimal number (hhh is 1 to 2 digits)
+   \uhhhh = 16-bit Unicode character (hhhh is 4 digits)
+   \Uhhhhhhhh = 32-bit Unicode character (hhhhhhhh is 8 digits)
+
+   Additional directive:
+
+   %b = print an argument string, interpreting backslash escapes,
+     except that octal escapes are of the form \0 or \0ooo.
+
+   The `format' argument is re-used as many times as necessary
+   to convert all of the given arguments.
+
+   David MacKenzie <djm@gnu.ai.mit.edu> */
+
+/* This file has been imported from source code of printf command in GNU Coreutils version 6.9 */
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <inttypes.h>
+
+#include "common.h"
+
+struct builtin_printf_state_t
+{
+    /* The status of the operation */
+    int exit_code;
+
+    /* Whether we should stop outputting. This gets set in the case of an error, and also with the \c escape. */
+    bool early_exit;
+
+    builtin_printf_state_t() : exit_code(0), early_exit(false)
+    {
+    }
+
+    void verify_numeric(const wchar_t *s, const wchar_t *end, int errcode);
+
+    void print_direc(const wchar_t *start, size_t length, wchar_t conversion,
+                     bool have_field_width, int field_width,
+                     bool have_precision, int precision,
+                     wchar_t const *argument);
+
+    int print_formatted(const wchar_t *format, int argc, wchar_t **argv);
+
+    void fatal_error(const wchar_t *format, ...);
+
+    long print_esc(const wchar_t *escstart, bool octal_0);
+    void print_esc_string(const wchar_t *str);
+    void print_esc_char(wchar_t c);
+
+    void append_output(wchar_t c);
+    void append_output(const wchar_t *c);
+    void append_format_output(const wchar_t *fmt, ...);
+};
+
+static bool is_octal_digit(wchar_t c)
+{
+    return c != L'\0' && wcschr(L"01234567", c) != NULL;
+}
+
+static bool is_hex_digit(wchar_t c)
+{
+    return c != L'\0' && wcschr(L"0123456789ABCDEFabcdef", c) != NULL;
+}
+
+static int hex_to_bin(const wchar_t &c)
+{
+    switch (c)
+    {
+        case L'0':
+            return 0;
+        case L'1':
+            return 1;
+        case L'2':
+            return 2;
+        case L'3':
+            return 3;
+        case L'4':
+            return 4;
+        case L'5':
+            return 5;
+        case L'6':
+            return 6;
+        case L'7':
+            return 7;
+        case L'8':
+            return 8;
+        case L'9':
+            return 9;
+        case L'a':
+        case L'A':
+            return 10;
+        case L'b':
+        case L'B':
+            return 11;
+        case L'c':
+        case L'C':
+            return 12;
+        case L'd':
+        case L'D':
+            return 13;
+        case L'e':
+        case L'E':
+            return 14;
+        case L'f':
+        case L'F':
+            return 15;
+        default:
+            return -1;
+    }
+}
+
+static int octal_to_bin(wchar_t c)
+{
+    switch (c)
+    {
+        case L'0':
+            return 0;
+        case L'1':
+            return 1;
+        case L'2':
+            return 2;
+        case L'3':
+            return 3;
+        case L'4':
+            return 4;
+        case L'5':
+            return 5;
+        case L'6':
+            return 6;
+        case L'7':
+            return 7;
+        default:
+            return -1;
+    }
+}
+
+/* This message appears in N_() here rather than just in _() below because
+   the sole use would have been in a #define.  */
+static wchar_t const *const cfcc_msg =
+    N_(L"warning: %ls: character(s) following character constant have been ignored");
+
+double C_STRTOD(wchar_t const *nptr, wchar_t **endptr)
+{
+    double r;
+
+    const wcstring saved_locale = wsetlocale(LC_NUMERIC, NULL);
+
+    if (!saved_locale.empty())
+    {
+        wsetlocale(LC_NUMERIC, L"C");
+    }
+
+    r = wcstod(nptr, endptr);
+
+    if (!saved_locale.empty())
+    {
+        wsetlocale(LC_NUMERIC, saved_locale.c_str());
+    }
+
+    return r;
+}
+
+static inline unsigned wchar_t to_uwchar_t(wchar_t ch)
+{
+    return ch;
+}
+
+void builtin_printf_state_t::fatal_error(const wchar_t *fmt, ...)
+{
+    // Don't error twice
+    if (early_exit)
+        return;
+
+    va_list va;
+    va_start(va, fmt);
+    wcstring errstr = vformat_string(fmt, va);
+    va_end(va);
+    stderr_buffer.append(errstr);
+    if (! string_suffixes_string(L"\n", errstr))
+        stderr_buffer.push_back(L'\n');
+
+    this->exit_code = STATUS_BUILTIN_ERROR;
+    this->early_exit = true;
+}
+
+void builtin_printf_state_t::append_output(wchar_t c)
+{
+    // Don't output if we're done
+    if (early_exit)
+        return;
+
+    stdout_buffer.push_back(c);
+}
+
+void builtin_printf_state_t::append_output(const wchar_t *c)
+{
+    // Don't output if we're done
+    if (early_exit)
+        return;
+
+    stdout_buffer.append(c);
+}
+
+void builtin_printf_state_t::append_format_output(const wchar_t *fmt, ...)
+{
+    // Don't output if we're done
+    if (early_exit)
+        return;
+
+    va_list va;
+    va_start(va, fmt);
+    append_formatv(stdout_buffer, fmt, va);
+    va_end(va);
+}
+
+
+void builtin_printf_state_t::verify_numeric(const wchar_t *s, const wchar_t *end, int errcode)
+{
+    if (errcode != 0)
+    {
+        this->fatal_error(L"%ls: %s", s, strerror(errcode));
+    }
+    else if (*end)
+    {
+        if (s == end)
+            this->fatal_error(_(L"%ls: expected a numeric value"), s);
+        else
+            this->fatal_error(_(L"%ls: value not completely converted"), s);
+    }
+}
+
+template<typename T>
+static T raw_string_to_scalar_type(const wchar_t *s, wchar_t ** end);
+
+// we use wcstoll instead of wcstoimax because FreeBSD 8 has busted wcstoumax and wcstoimax - see #626
+template<>
+intmax_t raw_string_to_scalar_type(const wchar_t *s, wchar_t ** end)
+{
+    return wcstoll(s, end, 0);
+}
+
+template<>
+uintmax_t raw_string_to_scalar_type(const wchar_t *s, wchar_t ** end)
+{
+    return wcstoull(s, end, 0);
+}
+
+template<>
+long double raw_string_to_scalar_type(const wchar_t *s, wchar_t ** end)
+{
+    return C_STRTOD(s, end);
+}
+
+template<typename T>
+static T string_to_scalar_type(const wchar_t *s, builtin_printf_state_t *state)
+{
+    T val;
+    if (*s == L'\"' || *s == L'\'')
+    {
+        unsigned wchar_t ch = *++s;
+        val = ch;
+    }
+    else
+    {
+        wchar_t *end = NULL;
+        errno = 0;
+        val = raw_string_to_scalar_type<T>(s, &end);
+        state->verify_numeric(s, end, errno);
+    }
+    return val;
+}
+
+/* Output a single-character \ escape.  */
+
+void builtin_printf_state_t::print_esc_char(wchar_t c)
+{
+    switch (c)
+    {
+        case L'a':			/* Alert. */
+            this->append_output(L'\a');
+            break;
+        case L'b':			/* Backspace. */
+            this->append_output(L'\b');
+            break;
+        case L'c':			/* Cancel the rest of the output. */
+            this->early_exit = true;
+            break;
+        case L'f':			/* Form feed. */
+            this->append_output(L'\f');
+            break;
+        case L'n':			/* New line. */
+            this->append_output(L'\n');
+            break;
+        case L'r':			/* Carriage return. */
+            this->append_output(L'\r');
+            break;
+        case L't':			/* Horizontal tab. */
+            this->append_output(L'\t');
+            break;
+        case L'v':			/* Vertical tab. */
+            this->append_output(L'\v');
+            break;
+        default:
+            this->append_output(c);
+            break;
+    }
+}
+
+/* Print a \ escape sequence starting at ESCSTART.
+   Return the number of characters in the escape sequence
+   besides the backslash.
+   If OCTAL_0 is nonzero, octal escapes are of the form \0ooo, where o
+   is an octal digit; otherwise they are of the form \ooo.  */
+long builtin_printf_state_t::print_esc(const wchar_t *escstart, bool octal_0)
+{
+    const wchar_t *p = escstart + 1;
+    int esc_value = 0;		/* Value of \nnn escape. */
+    int esc_length;		/* Length of \nnn escape. */
+
+    if (*p == L'x')
+    {
+        /* A hexadecimal \xhh escape sequence must have 1 or 2 hex. digits.  */
+        for (esc_length = 0, ++p; esc_length < 2 && is_hex_digit(*p); ++esc_length, ++p)
+            esc_value = esc_value * 16 + hex_to_bin(*p);
+        if (esc_length == 0)
+            this->fatal_error(_(L"missing hexadecimal number in escape"));
+        this->append_format_output(L"%lc", esc_value);
+    }
+    else if (is_octal_digit(*p))
+    {
+        /* Parse \0ooo (if octal_0 && *p == L'0') or \ooo (otherwise).
+        Allow \ooo if octal_0 && *p != L'0'; this is an undocumented
+        extension to POSIX that is compatible with Bash 2.05b.  */
+        for (esc_length = 0, p += octal_0 && *p == L'0'; esc_length < 3 && is_octal_digit(*p); ++esc_length, ++p)
+            esc_value = esc_value * 8 + octal_to_bin(*p);
+        this->append_format_output(L"%c", esc_value);
+    }
+    else if (*p && wcschr(L"\"\\abcfnrtv", *p))
+        print_esc_char(*p++);
+    else if (*p == L'u' || *p == L'U')
+    {
+        wchar_t esc_char = *p;
+        p++;
+        uint32_t uni_value = 0;
+        for (size_t esc_length = 0; esc_length < (esc_char == L'u' ? 4 : 8); esc_length++)
+        {
+            if (! is_hex_digit(*p))
+            {
+                /* Escape sequence must be done. Complain if we didn't get anything */
+                if (esc_length == 0)
+                {
+                    this->fatal_error(_(L"Missing hexadecimal number in Unicode escape"));
+                }
+                break;
+            }
+            uni_value = uni_value * 16 + hex_to_bin(*p);
+            p++;
+        }
+
+        /* PCA GNU printf respects the limitations described in ISO N717, about which universal characters "shall not" be specified. I believe this limitation is for the benefit of compilers; I see no reason to impose it in builtin_printf.
+
+          If __STDC_ISO_10646__ is defined, then it means wchar_t can and does hold Unicode code points, so just use that. If not defined, use the %lc printf conversion; this probably won't do anything good if your wide character set is not Unicode, but such platforms are exceedingly rare.
+        */
+        if (uni_value > 0x10FFFF)
+        {
+            this->fatal_error(_(L"Unicode character out of range: \\%c%0*x"), esc_char, (esc_char == L'u' ? 4 : 8), uni_value);
+        }
+        else
+        {
+#if defined(__STDC_ISO_10646__)
+            this->append_output(uni_value);
+#else
+            this->append_format_output(L"%lc", uni_value);
+#endif
+        }
+    }
+    else
+    {
+        this->append_output(L'\\');
+        if (*p)
+        {
+            this->append_output(*p);
+            p++;
+        }
+    }
+    return p - escstart - 1;
+}
+
+/* Print string STR, evaluating \ escapes. */
+
+void builtin_printf_state_t::print_esc_string(const wchar_t *str)
+{
+    for (; *str; str++)
+        if (*str == L'\\')
+            str += print_esc(str, true);
+        else
+            this->append_output(*str);
+}
+
+/* Evaluate a printf conversion specification.  START is the start of
+   the directive, LENGTH is its length, and CONVERSION specifies the
+   type of conversion.  LENGTH does not include any length modifier or
+   the conversion specifier itself.  FIELD_WIDTH and PRECISION are the
+   field width and precision for '*' values, if HAVE_FIELD_WIDTH and
+   HAVE_PRECISION are true, respectively.  ARGUMENT is the argument to
+   be formatted.  */
+
+void builtin_printf_state_t::print_direc(const wchar_t *start, size_t length, wchar_t conversion,
+        bool have_field_width, int field_width,
+        bool have_precision, int precision,
+        wchar_t const *argument)
+{
+    // Start with everything except the conversion specifier
+    wcstring fmt(start, length);
+
+    /*  Create a copy of the % directive, with an intmax_t-wide width modifier substituted for any existing integer length modifier. */
+    switch (conversion)
+    {
+        case L'd':
+        case L'i':
+        case L'u':
+            fmt.append(L"ll");
+            break;
+        case L'a':
+        case L'e':
+        case L'f':
+        case L'g':
+        case L'A':
+        case L'E':
+        case L'F':
+        case L'G':
+            fmt.append(L"L");
+            break;
+        case L's':
+            fmt.append(L"l");
+            break;
+        default:
+            break;
+    }
+
+    // Append the conversion itself
+    fmt.push_back(conversion);
+
+    switch (conversion)
+    {
+        case L'd':
+        case L'i':
+        {
+            intmax_t arg = string_to_scalar_type<intmax_t>(argument, this);
+            if (! have_field_width)
+            {
+                if (! have_precision)
+                    this->append_format_output(fmt.c_str(), arg);
+                else
+                    this->append_format_output(fmt.c_str(), precision, arg);
+            }
+            else
+            {
+                if (! have_precision)
+                    this->append_format_output(fmt.c_str(), field_width, arg);
+                else
+                    this->append_format_output(fmt.c_str(), field_width, precision, arg);
+            }
+        }
+        break;
+
+        case L'o':
+        case L'u':
+        case L'x':
+        case L'X':
+        {
+            uintmax_t arg = string_to_scalar_type<uintmax_t>(argument, this);
+            if (!have_field_width)
+            {
+                if (!have_precision)
+                    this->append_format_output(fmt.c_str(), arg);
+                else
+                    this->append_format_output(fmt.c_str(), precision, arg);
+            }
+            else
+            {
+                if (!have_precision)
+                    this->append_format_output(fmt.c_str(), field_width, arg);
+                else
+                    this->append_format_output(fmt.c_str(), field_width, precision, arg);
+            }
+        }
+        break;
+
+        case L'a':
+        case L'A':
+        case L'e':
+        case L'E':
+        case L'f':
+        case L'F':
+        case L'g':
+        case L'G':
+        {
+            long double arg = string_to_scalar_type<long double>(argument, this);
+            if (!have_field_width)
+            {
+                if (!have_precision)
+                    this->append_format_output(fmt.c_str(), arg);
+                else
+                    this->append_format_output(fmt.c_str(), precision, arg);
+            }
+            else
+            {
+                if (!have_precision)
+                    this->append_format_output(fmt.c_str(), field_width, arg);
+                else
+                    this->append_format_output(fmt.c_str(), field_width, precision, arg);
+            }
+        }
+        break;
+
+        case L'c':
+            if (!have_field_width)
+                this->append_format_output(fmt.c_str(), *argument);
+            else
+                this->append_format_output(fmt.c_str(), field_width, *argument);
+            break;
+        case L's':
+            if (!have_field_width)
+            {
+                if (!have_precision)
+                {
+                    this->append_format_output(fmt.c_str(), argument);
+                }
+                else
+                    this->append_format_output(fmt.c_str(), precision, argument);
+            }
+            else
+            {
+                if (!have_precision)
+                    this->append_format_output(fmt.c_str(), field_width, argument);
+                else
+                    this->append_format_output(fmt.c_str(), field_width, precision, argument);
+            }
+            break;
+    }
+}
+
+/* Print the text in FORMAT, using ARGV (with ARGC elements) for
+   arguments to any `%' directives.
+   Return the number of elements of ARGV used.  */
+
+int builtin_printf_state_t::print_formatted(const wchar_t *format, int argc, wchar_t **argv)
+{
+    int save_argc = argc;		/* Preserve original value.  */
+    const wchar_t *f;		/* Pointer into `format'.  */
+    const wchar_t *direc_start;	/* Start of % directive.  */
+    size_t direc_length;		/* Length of % directive.  */
+    bool have_field_width;	/* True if FIELD_WIDTH is valid.  */
+    int field_width = 0;		/* Arg to first '*'.  */
+    bool have_precision;		/* True if PRECISION is valid.  */
+    int precision = 0;		/* Arg to second '*'.  */
+    bool ok[UCHAR_MAX + 1] = { };	/* ok['x'] is true if %x is allowed.  */
+
+    for (f = format; *f != L'\0'; ++f)
+    {
+        switch (*f)
+        {
+            case L'%':
+                direc_start = f++;
+                direc_length = 1;
+                have_field_width = have_precision = false;
+                if (*f == L'%')
+                {
+                    this->append_output(L'%');
+                    break;
+                }
+                if (*f == L'b')
+                {
+                    /* FIXME: Field width and precision are not supported
+                    for %b, even though POSIX requires it.  */
+                    if (argc > 0)
+                    {
+                        print_esc_string(*argv);
+                        ++argv;
+                        --argc;
+                    }
+                    break;
+                }
+
+                ok['a'] = ok['A'] = ok['c'] = ok['d'] = ok['e'] = ok['E'] =
+                        ok['f'] = ok['F'] = ok['g'] = ok['G'] = ok['i'] = ok['o'] =
+                                ok['s'] = ok['u'] = ok['x'] = ok['X'] = true;
+
+                for (;; f++, direc_length++)
+                {
+                    switch (*f)
+                    {
+                        case L'I':
+                        case L'\'':
+                            ok['a'] = ok['A'] = ok['c'] = ok['e'] = ok['E'] =
+                                    ok['o'] = ok['s'] = ok['x'] = ok['X'] = false;
+                            break;
+                        case '-':
+                        case '+':
+                        case ' ':
+                            break;
+                        case L'#':
+                            ok['c'] = ok['d'] = ok['i'] = ok['s'] = ok['u'] = false;
+                            break;
+                        case '0':
+                            ok['c'] = ok['s'] = false;
+                            break;
+                        default:
+                            goto no_more_flag_characters;
+                    }
+                }
+no_more_flag_characters:
+                ;
+
+                if (*f == L'*')
+                {
+                    ++f;
+                    ++direc_length;
+                    if (argc > 0)
+                    {
+                        intmax_t width = string_to_scalar_type<intmax_t>(*argv, this);
+                        if (INT_MIN <= width && width <= INT_MAX)
+                            field_width = static_cast<int>(width);
+                        else
+                            this->fatal_error(_(L"invalid field width: %ls"), *argv);
+                        ++argv;
+                        --argc;
+                    }
+                    else
+                    {
+                        field_width = 0;
+                    }
+                    have_field_width = true;
+                }
+                else
+                {
+                    while (iswdigit(*f))
+                    {
+                        ++f;
+                        ++direc_length;
+                    }
+                }
+                if (*f == L'.')
+                {
+                    ++f;
+                    ++direc_length;
+                    ok['c'] = false;
+                    if (*f == L'*')
+                    {
+                        ++f;
+                        ++direc_length;
+                        if (argc > 0)
+                        {
+                            intmax_t prec = string_to_scalar_type<intmax_t>(*argv, this);
+                            if (prec < 0)
+                            {
+                                /* A negative precision is taken as if the
+                                precision were omitted, so -1 is safe
+                                here even if prec < INT_MIN.  */
+                                precision = -1;
+                            }
+                            else if (INT_MAX < prec)
+                                this->fatal_error(_(L"invalid precision: %ls"), *argv);
+                            else
+                            {
+                                precision = static_cast<int>(prec);
+                            }
+                            ++argv;
+                            --argc;
+                        }
+                        else
+                        {
+                            precision = 0;
+                        }
+                        have_precision = true;
+                    }
+                    else
+                    {
+                        while (iswdigit(*f))
+                        {
+                            ++f;
+                            ++direc_length;
+                        }
+                    }
+                }
+
+                while (*f == L'l' || *f == L'L' || *f == L'h' || *f == L'j' || *f == L't' || *f == L'z')
+                    ++f;
+
+                {
+                    unsigned wchar_t conversion = *f;
+                    if (! ok[conversion])
+                    {
+                        this->fatal_error(_(L"%.*ls: invalid conversion specification"), (int)(f + 1 - direc_start), direc_start);
+                        return 0;
+                    }
+                }
+
+                print_direc(direc_start, direc_length, *f,
+                            have_field_width, field_width,
+                            have_precision, precision,
+                            (argc <= 0 ? L"" : (argc--, *argv++)));
+                break;
+
+            case L'\\':
+                f += print_esc(f, false);
+                break;
+
+            default:
+                this->append_output(*f);
+        }
+    }
+    return save_argc - argc;
+}
+
+static int builtin_printf(parser_t &parser, wchar_t **argv)
+{
+    builtin_printf_state_t state;
+
+    wchar_t *format;
+    int args_used;
+    int argc = builtin_count_args(argv);
+
+    if (argc <= 1)
+    {
+        state.fatal_error(_(L"printf: not enough arguments"));
+        return STATUS_BUILTIN_ERROR;
+    }
+
+    format = argv[1];
+    argc -= 2;
+    argv += 2;
+
+    do
+    {
+        args_used = state.print_formatted(format, argc, argv);
+        argc -= args_used;
+        argv += args_used;
+    }
+    while (args_used > 0 && argc > 0 && ! state.early_exit);
+    return state.exit_code;
+}

builtin_set.cpp

@@ -0,0 +1,811 @@
+/** \file builtin_set.c Functions defining the set builtin
+
+Functions used for implementing the set builtin.
+
+*/
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <wchar.h>
+#include <wctype.h>
+#include <sys/types.h>
+#include <termios.h>
+#include <signal.h>
+#include <vector>
+#include <algorithm>
+#include "fallback.h"
+#include "util.h"
+
+#include "wutil.h"
+#include "builtin.h"
+#include "env.h"
+#include "expand.h"
+#include "common.h"
+#include "wgetopt.h"
+#include "proc.h"
+#include "parser.h"
+
+/* We know about these buffers */
+extern wcstring stdout_buffer, stderr_buffer;
+
+/**
+   Error message for invalid path operations
+*/
+#define BUILTIN_SET_PATH_ERROR L"%ls: Warning: path component %ls may not be valid in %ls.\n"
+
+/**
+   Hint for invalid path operation with a colon
+*/
+#define BUILTIN_SET_PATH_HINT L"%ls: Did you mean 'set %ls $%ls %ls'?\n"
+
+/**
+   Error for mismatch between index count and elements
+*/
+#define BUILTIN_SET_ARG_COUNT L"%ls: The number of variable indexes does not match the number of values\n"
+
+/**
+   Test if the specified variable should be subject to path validation
+*/
+static int is_path_variable(const wchar_t *env)
+{
+    return contains(env, L"PATH", L"CDPATH");
+}
+
+/**
+   Call env_set. If this is a path variable, e.g. PATH, validate the
+   elements. On error, print a description of the problem to stderr.
+*/
+static int my_env_set(const wchar_t *key, const wcstring_list_t &val, int scope)
+{
+    size_t i;
+    int retcode = 0;
+    const wchar_t *val_str=NULL;
+
+    if (is_path_variable(key))
+    {
+        /* Fix for https://github.com/fish-shell/fish-shell/issues/199 . Return success if any path setting succeeds. */
+        bool any_success = false;
+
+        /* Don't bother validating (or complaining about) values that are already present */
+        wcstring_list_t existing_values;
+        const env_var_t existing_variable = env_get_string(key);
+        if (! existing_variable.missing_or_empty())
+            tokenize_variable_array(existing_variable, existing_values);
+
+        for (i=0; i< val.size() ; i++)
+        {
+            const wcstring &dir = val.at(i);
+            if (list_contains_string(existing_values, dir))
+            {
+                any_success = true;
+                continue;
+            }
+
+            bool show_perror = false;
+            int show_hint = 0;
+            bool error = false;
+
+            struct stat buff;
+            if (wstat(dir, &buff))
+            {
+                error = true;
+                show_perror = true;
+            }
+
+            if (!(S_ISDIR(buff.st_mode)))
+            {
+                error = true;
+            }
+
+            if (!error)
+            {
+                any_success = true;
+            }
+            else
+            {
+                append_format(stderr_buffer, _(BUILTIN_SET_PATH_ERROR), L"set", dir.c_str(), key);
+                const wchar_t *colon = wcschr(dir.c_str(), L':');
+
+                if (colon && *(colon+1))
+                {
+                    show_hint = 1;
+                }
+
+            }
+
+            if (show_perror)
+            {
+                builtin_wperror(L"set");
+            }
+
+            if (show_hint)
+            {
+                append_format(stderr_buffer, _(BUILTIN_SET_PATH_HINT), L"set", key, key, wcschr(dir.c_str(), L':')+1);
+            }
+
+        }
+
+        /* Fail at setting the path if we tried to set it to something non-empty, but it wound up empty. */
+        if (! val.empty() && ! any_success)
+        {
+            return 1;
+        }
+
+    }
+
+    wcstring sb;
+    if (! val.empty())
+    {
+        for (i=0; i< val.size() ; i++)
+        {
+            sb.append(val[i]);
+            if (i<val.size() - 1)
+            {
+                sb.append(ARRAY_SEP_STR);
+            }
+        }
+        val_str = sb.c_str();
+    }
+
+    switch (env_set(key, val_str, scope | ENV_USER))
+    {
+        case ENV_PERM:
+        {
+            append_format(stderr_buffer, _(L"%ls: Tried to change the read-only variable '%ls'\n"), L"set", key);
+            retcode=1;
+            break;
+        }
+
+        case ENV_INVALID:
+        {
+            append_format(stderr_buffer, _(L"%ls: Unknown error"), L"set");
+            retcode=1;
+            break;
+        }
+    }
+
+    return retcode;
+}
+
+
+
+/**
+  Extract indexes from a destination argument of the form name[index1 index2...]
+
+  \param indexes the list to insert the new indexes into
+  \param src the source string to parse
+  \param name the name of the element. Return null if the name in \c src does not match this name
+  \param var_count the number of elements in the array to parse.
+
+  \return the total number of indexes parsed, or -1 on error
+*/
+static int parse_index(std::vector<long> &indexes,
+                       const wchar_t *src,
+                       const wchar_t *name,
+                       size_t var_count)
+{
+    size_t len;
+
+    int count = 0;
+    const wchar_t *src_orig = src;
+
+    if (src == 0)
+    {
+        return 0;
+    }
+
+    while (*src != L'\0' && (iswalnum(*src) || *src == L'_'))
+    {
+        src++;
+    }
+
+    if (*src != L'[')
+    {
+        append_format(stderr_buffer, _(BUILTIN_SET_ARG_COUNT), L"set");
+        return 0;
+    }
+
+    len = src-src_orig;
+
+    if ((wcsncmp(src_orig, name, len)!=0) || (wcslen(name) != (len)))
+    {
+        append_format(stderr_buffer,
+                      _(L"%ls: Multiple variable names specified in single call (%ls and %.*ls)\n"),
+                      L"set",
+                      name,
+                      len,
+                      src_orig);
+        return 0;
+    }
+
+    src++;
+
+    while (iswspace(*src))
+    {
+        src++;
+    }
+
+    while (*src != L']')
+    {
+        wchar_t *end;
+
+        long l_ind;
+
+        errno = 0;
+
+        l_ind = wcstol(src, &end, 10);
+
+        if (end==src || errno)
+        {
+            append_format(stderr_buffer, _(L"%ls: Invalid index starting at '%ls'\n"), L"set", src);
+            return 0;
+        }
+
+        if (l_ind < 0)
+        {
+            l_ind = var_count+l_ind+1;
+        }
+
+        src = end;
+        if (*src==L'.' && *(src+1)==L'.')
+        {
+            src+=2;
+            long l_ind2 = wcstol(src, &end, 10);
+            if (end==src || errno)
+            {
+                return 1;
+            }
+            src = end;
+
+            if (l_ind2 < 0)
+            {
+                l_ind2 = var_count+l_ind2+1;
+            }
+            int direction = l_ind2<l_ind ? -1 : 1 ;
+            for (long jjj = l_ind; jjj*direction <= l_ind2*direction; jjj+=direction)
+            {
+                // debug(0, L"Expand range [set]: %i\n", jjj);
+                indexes.push_back(jjj);
+                count++;
+            }
+        }
+        else
+        {
+            indexes.push_back(l_ind);
+            count++;
+        }
+        while (iswspace(*src)) src++;
+    }
+
+    return count;
+}
+
+static int update_values(wcstring_list_t &list,
+                         std::vector<long> &indexes,
+                         wcstring_list_t &values)
+{
+    size_t i;
+
+    /* Replace values where needed */
+    for (i = 0; i < indexes.size(); i++)
+    {
+        /*
+          The '- 1' below is because the indices in fish are
+          one-based, but the vector uses zero-based indices
+        */
+        long ind = indexes[i] - 1;
+        const wcstring newv = values[ i ];
+        if (ind < 0)
+        {
+            return 1;
+        }
+        if ((size_t)ind >= list.size())
+        {
+            list.resize(ind+1);
+        }
+
+//    free((void *) al_get(list, ind));
+        list[ ind ] = newv;
+    }
+
+    return 0;
+}
+
+/**
+   Erase from a list of wcstring values at specified indexes
+*/
+static void erase_values(wcstring_list_t &list, const std::vector<long> &indexes)
+{
+    // Make a set of indexes.
+    // This both sorts them into ascending order and removes duplicates.
+    const std::set<long> indexes_set(indexes.begin(), indexes.end());
+
+    // Now walk the set backwards, so we encounter larger indexes first, and remove elements at the given (1-based) indexes.
+    std::set<long>::const_reverse_iterator iter;
+    for (iter = indexes_set.rbegin(); iter != indexes_set.rend(); ++iter)
+    {
+        long val = *iter;
+        if (val > 0 && (size_t)val <= list.size())
+        {
+            // One-based indexing!
+            list.erase(list.begin() + val - 1);
+        }
+    }
+}
+
+
+/**
+   Print the names of all environment variables in the scope, with or without shortening,
+   with or without values, with or without escaping
+*/
+static void print_variables(int include_values, int esc, bool shorten_ok, int scope)
+{
+    wcstring_list_t names = env_get_names(scope);
+    sort(names.begin(), names.end());
+
+    for (size_t i = 0; i < names.size(); i++)
+    {
+        const wcstring key = names.at(i);
+        const wcstring e_key = escape_string(key, 0);
+
+        stdout_buffer.append(e_key);
+
+        if (include_values)
+        {
+            env_var_t value = env_get_string(key);
+            if (!value.missing())
+            {
+                int shorten = 0;
+
+                if (shorten_ok && value.length() > 64)
+                {
+                    shorten = 1;
+                    value.resize(60);
+                }
+
+                wcstring e_value = esc ? expand_escape_variable(value) : value;
+
+                stdout_buffer.append(L" ");
+                stdout_buffer.append(e_value);
+
+                if (shorten)
+                {
+                    stdout_buffer.push_back(ellipsis_char);
+                }
+
+            }
+        }
+
+        stdout_buffer.append(L"\n");
+    }
+}
+
+
+
+/**
+   The set builtin. Creates, updates and erases environment variables
+   and environemnt variable arrays.
+*/
+static int builtin_set(parser_t &parser, wchar_t **argv)
+{
+    /** Variables used for parsing the argument list */
+    const struct woption long_options[] =
+    {
+        { L"export", no_argument, 0, 'x' },
+        { L"global", no_argument, 0, 'g' },
+        { L"local", no_argument, 0, 'l' },
+        { L"erase", no_argument, 0, 'e' },
+        { L"names", no_argument, 0, 'n' },
+        { L"unexport", no_argument, 0, 'u' },
+        { L"universal", no_argument, 0, 'U' },
+        { L"long", no_argument, 0, 'L' },
+        { L"query", no_argument, 0, 'q' },
+        { L"help", no_argument, 0, 'h' },
+        { 0, 0, 0, 0 }
+    } ;
+
+    const wchar_t *short_options = L"+xglenuULqh";
+
+    int argc = builtin_count_args(argv);
+
+    /*
+      Flags to set the work mode
+    */
+    int local = 0, global = 0, exportv = 0;
+    int erase = 0, list = 0, unexport=0;
+    int universal = 0, query=0;
+    bool shorten_ok = true;
+    bool preserve_incoming_failure_exit_status = true;
+    const int incoming_exit_status = proc_get_last_status();
+
+    /*
+      Variables used for performing the actual work
+    */
+    wchar_t *dest = 0;
+    int retcode=0;
+    int scope;
+    int slice=0;
+    int i;
+
+    wchar_t *bad_char;
+
+
+    /* Parse options to obtain the requested operation and the modifiers */
+    woptind = 0;
+    while (1)
+    {
+        int c = wgetopt_long(argc, argv, short_options, long_options, 0);
+
+        if (c == -1)
+        {
+            break;
+        }
+
+        switch (c)
+        {
+            case 0:
+                break;
+
+            case 'e':
+                erase = 1;
+                preserve_incoming_failure_exit_status = false;
+                break;
+
+            case 'n':
+                list = 1;
+                preserve_incoming_failure_exit_status = false;
+                break;
+
+            case 'x':
+                exportv = 1;
+                break;
+
+            case 'l':
+                local = 1;
+                break;
+
+            case 'g':
+                global = 1;
+                break;
+
+            case 'u':
+                unexport = 1;
+                break;
+
+            case 'U':
+                universal = 1;
+                break;
+
+            case 'L':
+                shorten_ok = false;
+                break;
+
+            case 'q':
+                query = 1;
+                preserve_incoming_failure_exit_status = false;
+                break;
+
+            case 'h':
+                builtin_print_help(parser, argv[0], stdout_buffer);
+                return 0;
+
+            case '?':
+                builtin_unknown_option(parser, argv[0], argv[woptind-1]);
+                return 1;
+
+            default:
+                break;
+        }
+    }
+
+    /*
+      Ok, all arguments have been parsed, let's validate them
+    */
+
+    /*
+      If we are checking the existance of a variable (-q) we can not
+      also specify scope
+    */
+
+    if (query && (erase || list))
+    {
+        append_format(stderr_buffer,
+                      BUILTIN_ERR_COMBO,
+                      argv[0]);
+
+        builtin_print_help(parser, argv[0], stderr_buffer);
+        return 1;
+    }
+
+
+    /* We can't both list and erase varaibles */
+    if (erase && list)
+    {
+        append_format(stderr_buffer,
+                      BUILTIN_ERR_COMBO,
+                      argv[0]);
+
+        builtin_print_help(parser, argv[0], stderr_buffer);
+        return 1;
+    }
+
+    /*
+      Variables can only have one scope
+    */
+    if (local + global + universal > 1)
+    {
+        append_format(stderr_buffer,
+                      BUILTIN_ERR_GLOCAL,
+                      argv[0]);
+        builtin_print_help(parser, argv[0], stderr_buffer);
+        return 1;
+    }
+
+    /*
+      Variables can only have one export status
+    */
+    if (exportv && unexport)
+    {
+        append_format(stderr_buffer,
+                      BUILTIN_ERR_EXPUNEXP,
+                      argv[0]);
+        builtin_print_help(parser, argv[0], stderr_buffer);
+        return 1;
+    }
+
+    /*
+      Calculate the scope value for variable assignement
+    */
+    scope = (local ? ENV_LOCAL : 0) | (global ? ENV_GLOBAL : 0) | (exportv ? ENV_EXPORT : 0) | (unexport ? ENV_UNEXPORT : 0) | (universal ? ENV_UNIVERSAL:0) | ENV_USER;
+
+    if (query)
+    {
+        /*
+          Query mode. Return the number of variables that do not exist
+          out of the specified variables.
+        */
+        int i;
+        for (i=woptind; i<argc; i++)
+        {
+            wchar_t *arg = argv[i];
+            int slice=0;
+
+            if (!(dest = wcsdup(arg)))
+            {
+                DIE_MEM();
+            }
+
+            if (wcschr(dest, L'['))
+            {
+                slice = 1;
+                *wcschr(dest, L'[')=0;
+            }
+
+            if (slice)
+            {
+                std::vector<long> indexes;
+                wcstring_list_t result;
+                size_t j;
+
+                env_var_t dest_str = env_get_string(dest);
+                if (! dest_str.missing())
+                    tokenize_variable_array(dest_str, result);
+
+                if (!parse_index(indexes, arg, dest, result.size()))
+                {
+                    builtin_print_help(parser, argv[0], stderr_buffer);
+                    retcode = 1;
+                    break;
+                }
+                for (j=0; j < indexes.size() ; j++)
+                {
+                    long idx = indexes[j];
+                    if (idx < 1 || (size_t)idx > result.size())
+                    {
+                        retcode++;
+                    }
+                }
+            }
+            else
+            {
+                if (!env_exist(arg, scope))
+                {
+                    retcode++;
+                }
+            }
+
+            free(dest);
+
+        }
+        return retcode;
+    }
+
+    if (list)
+    {
+        /* Maybe we should issue an error if there are any other arguments? */
+        print_variables(0, 0, shorten_ok, scope);
+        return 0;
+    }
+
+    if (woptind == argc)
+    {
+        /*
+          Print values of variables
+        */
+
+        if (erase)
+        {
+            append_format(stderr_buffer,
+                          _(L"%ls: Erase needs a variable name\n"),
+                          argv[0]);
+
+            builtin_print_help(parser, argv[0], stderr_buffer);
+            retcode = 1;
+        }
+        else
+        {
+            print_variables(1, 1, shorten_ok, scope);
+        }
+
+        return retcode;
+    }
+
+    if (!(dest = wcsdup(argv[woptind])))
+    {
+        DIE_MEM();
+    }
+
+    if (wcschr(dest, L'['))
+    {
+        slice = 1;
+        *wcschr(dest, L'[')=0;
+    }
+
+    if (!wcslen(dest))
+    {
+        free(dest);
+        append_format(stderr_buffer, BUILTIN_ERR_VARNAME_ZERO, argv[0]);
+        builtin_print_help(parser, argv[0], stderr_buffer);
+        return 1;
+    }
+
+    if ((bad_char = wcsvarname(dest)))
+    {
+        append_format(stderr_buffer, BUILTIN_ERR_VARCHAR, argv[0], *bad_char);
+        builtin_print_help(parser, argv[0], stderr_buffer);
+        free(dest);
+        return 1;
+    }
+
+    if (slice && erase && (scope != ENV_USER))
+    {
+        free(dest);
+        append_format(stderr_buffer, _(L"%ls: Can not specify scope when erasing array slice\n"), argv[0]);
+        builtin_print_help(parser, argv[0], stderr_buffer);
+        return 1;
+    }
+
+    /*
+      set assignment can work in two modes, either using slices or
+      using the whole array. We detect which mode is used here.
+    */
+
+    if (slice)
+    {
+
+        /*
+          Slice mode
+        */
+        size_t idx_count, val_count;
+        wcstring_list_t values;
+        std::vector<long> indexes;
+        wcstring_list_t result;
+
+        const env_var_t dest_str = env_get_string(dest);
+        if (! dest_str.missing())
+            tokenize_variable_array(dest_str, result);
+
+        for (; woptind<argc; woptind++)
+        {
+            if (!parse_index(indexes, argv[woptind], dest, result.size()))
+            {
+                builtin_print_help(parser, argv[0], stderr_buffer);
+                retcode = 1;
+                break;
+            }
+
+            val_count = argc-woptind-1;
+            idx_count = indexes.size();
+
+            if (!erase)
+            {
+                if (val_count < idx_count)
+                {
+                    append_format(stderr_buffer, _(BUILTIN_SET_ARG_COUNT), argv[0]);
+                    builtin_print_help(parser, argv[0], stderr_buffer);
+                    retcode=1;
+                    break;
+                }
+                if (val_count == idx_count)
+                {
+                    woptind++;
+                    break;
+                }
+            }
+        }
+
+        if (!retcode)
+        {
+            /*
+              Slice indexes have been calculated, do the actual work
+            */
+
+            if (erase)
+            {
+                erase_values(result, indexes);
+                my_env_set(dest, result, scope);
+            }
+            else
+            {
+                wcstring_list_t value;
+
+                while (woptind < argc)
+                {
+                    value.push_back(argv[woptind++]);
+                }
+
+                if (update_values(result,
+                                  indexes,
+                                  value))
+                {
+                    append_format(stderr_buffer, L"%ls: ", argv[0]);
+                    append_format(stderr_buffer, ARRAY_BOUNDS_ERR);
+                    stderr_buffer.push_back(L'\n');
+                }
+
+                my_env_set(dest, result, scope);
+
+
+            }
+        }
+    }
+    else
+    {
+        woptind++;
+
+        /*
+          No slicing
+        */
+        if (erase)
+        {
+            if (woptind != argc)
+            {
+                append_format(stderr_buffer,
+                              _(L"%ls: Values cannot be specfied with erase\n"),
+                              argv[0]);
+                builtin_print_help(parser, argv[0], stderr_buffer);
+                retcode=1;
+            }
+            else
+            {
+                retcode = env_remove(dest, scope);
+            }
+        }
+        else
+        {
+            wcstring_list_t val;
+            for (i=woptind; i<argc; i++)
+                val.push_back(argv[i]);
+            retcode = my_env_set(dest, val, scope);
+        }
+    }
+
+    free(dest);
+
+    if (retcode == STATUS_BUILTIN_OK && preserve_incoming_failure_exit_status)
+        retcode = incoming_exit_status;
+    return retcode;
+
+}
+

builtin_set_color.cpp

@@ -0,0 +1,243 @@
+/** \file builtin_set_color.cpp Functions defining the set_color builtin
+
+Functions used for implementing the set_color builtin.
+
+*/
+#include "config.h"
+
+#include "builtin.h"
+#include "color.h"
+#include "output.h"
+
+#if HAVE_NCURSES_H
+#include <ncurses.h>
+#else
+#include <curses.h>
+#endif
+
+#if HAVE_TERM_H
+#include <term.h>
+#elif HAVE_NCURSES_TERM_H
+#include <ncurses/term.h>
+#endif
+
+
+/* We know about these buffers */
+extern wcstring stdout_buffer, stderr_buffer;
+
+/**
+   Error message for invalid path operations
+*/
+#define BUILTIN_SET_PATH_ERROR L"%ls: Warning: path component %ls may not be valid in %ls.\n"
+
+/**
+   Hint for invalid path operation with a colon
+*/
+#define BUILTIN_SET_PATH_HINT L"%ls: Did you mean 'set %ls $%ls %ls'?\n"
+
+/**
+   Error for mismatch between index count and elements
+*/
+#define BUILTIN_SET_ARG_COUNT L"%ls: The number of variable indexes does not match the number of values\n"
+
+static void print_colors(void)
+{
+    const wcstring_list_t result = rgb_color_t::named_color_names();
+    size_t i;
+    for (i=0; i < result.size(); i++)
+    {
+        stdout_buffer.append(result.at(i));
+        stdout_buffer.push_back(L'\n');
+    }
+}
+
+/* function we set as the output writer */
+static std::string builtin_set_color_output;
+static int set_color_builtin_outputter(char c)
+{
+    ASSERT_IS_MAIN_THREAD();
+    builtin_set_color_output.push_back(c);
+    return 0;
+}
+
+/**
+   set_color builtin
+*/
+static int builtin_set_color(parser_t &parser, wchar_t **argv)
+{
+    /** Variables used for parsing the argument list */
+    const struct woption long_options[] =
+    {
+        { L"background", required_argument, 0, 'b'},
+        { L"help", no_argument, 0, 'h' },
+        { L"bold", no_argument, 0, 'o' },
+        { L"underline", no_argument, 0, 'u' },
+        { L"version", no_argument, 0, 'v' },
+        { L"print-colors", no_argument, 0, 'c' },
+        { 0, 0, 0, 0 }
+    };
+
+    const wchar_t *short_options = L"b:hvocu";
+
+    int argc = builtin_count_args(argv);
+
+    const wchar_t *bgcolor = NULL;
+    bool bold = false, underline=false;
+    int errret;
+
+    /* Parse options to obtain the requested operation and the modifiers */
+    woptind = 0;
+    while (1)
+    {
+        int c = wgetopt_long(argc, argv, short_options, long_options, 0);
+
+        if (c == -1)
+        {
+            break;
+        }
+
+        switch (c)
+        {
+            case 0:
+                break;
+
+            case 'b':
+                bgcolor = woptarg;
+                break;
+
+            case 'h':
+                builtin_print_help(parser, argv[0], stdout_buffer);
+                return STATUS_BUILTIN_OK;
+
+            case 'o':
+                bold = true;
+                break;
+
+            case 'u':
+                underline = true;
+                break;
+
+            case 'c':
+                print_colors();
+                return STATUS_BUILTIN_OK;
+
+            case '?':
+                return STATUS_BUILTIN_ERROR;
+        }
+    }
+
+    /* Remaining argument is foreground color */
+    const wchar_t *fgcolor = NULL;
+    if (woptind < argc)
+    {
+        if (woptind + 1 == argc)
+        {
+            fgcolor = argv[woptind];
+        }
+        else
+        {
+            append_format(stderr_buffer,
+                          _(L"%ls: Too many arguments\n"),
+                          argv[0]);
+            return STATUS_BUILTIN_ERROR;
+        }
+    }
+
+    if (fgcolor == NULL && bgcolor == NULL && !bold && !underline)
+    {
+        append_format(stderr_buffer,
+                      _(L"%ls: Expected an argument\n"),
+                      argv[0]);
+        return STATUS_BUILTIN_ERROR;
+    }
+
+    const rgb_color_t fg = rgb_color_t(fgcolor ? fgcolor : L"");
+    if (fgcolor && fg.is_none())
+    {
+        append_format(stderr_buffer, _(L"%ls: Unknown color '%ls'\n"), argv[0], fgcolor);
+        return STATUS_BUILTIN_ERROR;
+    }
+
+    const rgb_color_t bg = rgb_color_t(bgcolor ? bgcolor : L"");
+    if (bgcolor && bg.is_none())
+    {
+        append_format(stderr_buffer, _(L"%ls: Unknown color '%ls'\n"), argv[0], bgcolor);
+        return STATUS_BUILTIN_ERROR;
+    }
+
+    /* Make sure that the term exists */
+    if (cur_term == NULL && setupterm(0, STDOUT_FILENO, &errret) == ERR)
+    {
+        append_format(stderr_buffer, _(L"%ls: Could not set up terminal\n"), argv[0]);
+        return STATUS_BUILTIN_ERROR;
+    }
+
+    /*
+       Test if we have at least basic support for setting fonts, colors
+       and related bits - otherwise just give up...
+    */
+    if (! exit_attribute_mode)
+    {
+        return STATUS_BUILTIN_ERROR;
+    }
+
+
+    /* Save old output function so we can restore it */
+    int (* const saved_writer_func)(char) = output_get_writer();
+
+    /* Set our output function, which writes to a std::string */
+    builtin_set_color_output.clear();
+    output_set_writer(set_color_builtin_outputter);
+
+    if (bold)
+    {
+        if (enter_bold_mode)
+            writembs(tparm(enter_bold_mode));
+    }
+
+    if (underline)
+    {
+        if (enter_underline_mode)
+            writembs(enter_underline_mode);
+    }
+
+    if (bgcolor != NULL)
+    {
+        if (bg.is_normal())
+        {
+            write_background_color(0);
+            writembs(tparm(exit_attribute_mode));
+        }
+    }
+
+    if (fgcolor != NULL)
+    {
+        if (fg.is_normal())
+        {
+            write_foreground_color(0);
+            writembs(tparm(exit_attribute_mode));
+        }
+        else
+        {
+            write_foreground_color(index_for_color(fg));
+        }
+    }
+
+    if (bgcolor != NULL)
+    {
+        if (! bg.is_normal())
+        {
+            write_background_color(index_for_color(bg));
+        }
+    }
+
+    /* Restore saved writer function */
+    output_set_writer(saved_writer_func);
+
+    /* Output the collected string */
+    std::string local_output;
+    std::swap(builtin_set_color_output, local_output);
+    stdout_buffer.append(str2wcstring(local_output));
+
+    return STATUS_BUILTIN_OK;
+}

builtin_test.cpp

@@ -0,0 +1,970 @@
+/** \file builtin_test.cpp Functions defining the test builtin
+
+Functions used for implementing the test builtin.
+Implemented from scratch (yes, really) by way of IEEE 1003.1 as reference.
+
+*/
+
+#include "config.h"
+#include "common.h"
+#include "builtin.h"
+#include "wutil.h"
+#include "proc.h"
+#include <sys/stat.h>
+#include <memory>
+
+
+enum
+{
+    BUILTIN_TEST_SUCCESS = STATUS_BUILTIN_OK,
+    BUILTIN_TEST_FAIL = STATUS_BUILTIN_ERROR
+};
+
+
+int builtin_test(parser_t &parser, wchar_t **argv);
+
+static const wchar_t * const condstr[] =
+{
+    L"!", L"&&", L"||", L"==", L"!=", L"<", L">", L"-nt", L"-ot", L"-ef", L"-eq",
+    L"-ne", L"-lt", L"-gt", L"-le", L"-ge", L"=~"
+};
+
+namespace test_expressions
+{
+
+enum token_t
+{
+    test_unknown,               // arbitrary string
+
+    test_bang,                  // "!", inverts sense
+
+    test_filetype_b,            // "-b", for block special files
+    test_filetype_c,            // "-c" for character special files
+    test_filetype_d,            // "-d" for directories
+    test_filetype_e,            // "-e" for files that exist
+    test_filetype_f,            // "-f" for for regular files
+    test_filetype_g,            // "-g" for set-group-id
+    test_filetype_h,            // "-h" for symbolic links
+    test_filetype_L,            // "-L", same as -h
+    test_filetype_p,            // "-p", for FIFO
+    test_filetype_S,            // "-S", socket
+
+    test_filesize_s,            // "-s", size greater than zero
+
+    test_filedesc_t,            // "-t", whether the fd is associated with a terminal
+
+    test_fileperm_r,            // "-r", read permission
+    test_fileperm_u,            // "-u", whether file is setuid
+    test_fileperm_w,            // "-w", whether file write permission is allowed
+    test_fileperm_x,            // "-x", whether file execute/search is allowed
+
+    test_string_n,              // "-n", non-empty string
+    test_string_z,              // "-z", true if length of string is 0
+    test_string_equal,          // "=", true if strings are identical
+    test_string_not_equal,      // "!=", true if strings are not identical
+
+    test_number_equal,          // "-eq", true if numbers are equal
+    test_number_not_equal,      // "-ne", true if numbers are not equal
+    test_number_greater,        // "-gt", true if first number is larger than second
+    test_number_greater_equal,  // "-ge", true if first number is at least second
+    test_number_lesser,         // "-lt", true if first number is smaller than second
+    test_number_lesser_equal,   // "-le", true if first number is at most second
+
+    test_combine_and,            // "-a", true if left and right are both true
+    test_combine_or,             // "-o", true if either left or right is true
+
+    test_paren_open,             // "(", open paren
+    test_paren_close,             // ")", close paren
+};
+
+static bool binary_primary_evaluate(test_expressions::token_t token, const wcstring &left, const wcstring &right, wcstring_list_t &errors);
+static bool unary_primary_evaluate(test_expressions::token_t token, const wcstring &arg, wcstring_list_t &errors);
+
+
+enum
+{
+    UNARY_PRIMARY = 1 << 0,
+    BINARY_PRIMARY = 1 << 1
+};
+
+static const struct token_info_t
+{
+    token_t tok;
+    const wchar_t *string;
+    unsigned int flags;
+} token_infos[] =
+{
+    {test_unknown, L"", 0},
+    {test_bang, L"!", 0},
+    {test_filetype_b, L"-b", UNARY_PRIMARY},
+    {test_filetype_c, L"-c", UNARY_PRIMARY},
+    {test_filetype_d, L"-d", UNARY_PRIMARY},
+    {test_filetype_e, L"-e", UNARY_PRIMARY},
+    {test_filetype_f, L"-f", UNARY_PRIMARY},
+    {test_filetype_g, L"-g", UNARY_PRIMARY},
+    {test_filetype_h, L"-h", UNARY_PRIMARY},
+    {test_filetype_L, L"-L", UNARY_PRIMARY},
+    {test_filetype_p, L"-p", UNARY_PRIMARY},
+    {test_filetype_S, L"-S", UNARY_PRIMARY},
+    {test_filesize_s, L"-s", UNARY_PRIMARY},
+    {test_filedesc_t, L"-t", UNARY_PRIMARY},
+    {test_fileperm_r, L"-r", UNARY_PRIMARY},
+    {test_fileperm_u, L"-u", UNARY_PRIMARY},
+    {test_fileperm_w, L"-w", UNARY_PRIMARY},
+    {test_fileperm_x, L"-x", UNARY_PRIMARY},
+    {test_string_n, L"-n", UNARY_PRIMARY},
+    {test_string_z, L"-z", UNARY_PRIMARY},
+    {test_string_equal, L"=", BINARY_PRIMARY},
+    {test_string_not_equal, L"!=", BINARY_PRIMARY},
+    {test_number_equal, L"-eq", BINARY_PRIMARY},
+    {test_number_not_equal, L"-ne", BINARY_PRIMARY},
+    {test_number_greater, L"-gt", BINARY_PRIMARY},
+    {test_number_greater_equal, L"-ge", BINARY_PRIMARY},
+    {test_number_lesser, L"-lt", BINARY_PRIMARY},
+    {test_number_lesser_equal, L"-le", BINARY_PRIMARY},
+    {test_combine_and, L"-a", 0},
+    {test_combine_or, L"-o", 0},
+    {test_paren_open, L"(", 0},
+    {test_paren_close, L")", 0}
+};
+
+const token_info_t *token_for_string(const wcstring &str)
+{
+    for (size_t i=0; i < sizeof token_infos / sizeof *token_infos; i++)
+    {
+        if (str == token_infos[i].string)
+        {
+            return &token_infos[i];
+        }
+    }
+    return &token_infos[0]; //unknown
+}
+
+
+/* Grammar.
+
+    <expr> = <combining_expr>
+
+    <combining_expr> = <unary_expr> and/or <combining_expr> |
+                       <unary_expr>
+
+    <unary_expr> = bang <unary_expr> |
+                  <primary>
+
+    <primary> = <unary_primary> arg |
+                arg <binary_primary> arg |
+                '(' <expr> ')'
+
+*/
+
+class expression;
+class test_parser
+{
+private:
+    wcstring_list_t strings;
+    wcstring_list_t errors;
+
+    expression *error(const wchar_t *fmt, ...);
+    void add_error(const wchar_t *fmt, ...);
+
+    const wcstring &arg(unsigned int idx)
+    {
+        return strings.at(idx);
+    }
+
+public:
+    test_parser(const wcstring_list_t &val) : strings(val)
+    { }
+
+    expression *parse_expression(unsigned int start, unsigned int end);
+    expression *parse_3_arg_expression(unsigned int start, unsigned int end);
+    expression *parse_4_arg_expression(unsigned int start, unsigned int end);
+    expression *parse_combining_expression(unsigned int start, unsigned int end);
+    expression *parse_unary_expression(unsigned int start, unsigned int end);
+
+    expression *parse_primary(unsigned int start, unsigned int end);
+    expression *parse_parenthentical(unsigned int start, unsigned int end);
+    expression *parse_unary_primary(unsigned int start, unsigned int end);
+    expression *parse_binary_primary(unsigned int start, unsigned int end);
+    expression *parse_just_a_string(unsigned int start, unsigned int end);
+
+    static expression *parse_args(const wcstring_list_t &args, wcstring &err);
+};
+
+struct range_t
+{
+    unsigned int start;
+    unsigned int end;
+
+    range_t(unsigned s, unsigned e) : start(s), end(e) { }
+};
+
+
+/* Base class for expressions */
+class expression
+{
+protected:
+    expression(token_t what, range_t where) : token(what), range(where) { }
+
+public:
+    const token_t token;
+    range_t range;
+
+    virtual ~expression() { }
+
+    // evaluate returns true if the expression is true (i.e. BUILTIN_TEST_SUCCESS)
+    virtual bool evaluate(wcstring_list_t &errors) = 0;
+};
+
+typedef std::auto_ptr<expression> expr_ref_t;
+
+/* Single argument like -n foo or "just a string" */
+class unary_primary : public expression
+{
+public:
+    wcstring arg;
+    unary_primary(token_t tok, range_t where, const wcstring &what) : expression(tok, where), arg(what) { }
+    bool evaluate(wcstring_list_t &errors);
+};
+
+/* Two argument primary like foo != bar */
+class binary_primary : public expression
+{
+public:
+    wcstring arg_left;
+    wcstring arg_right;
+
+    binary_primary(token_t tok, range_t where, const wcstring &left, const wcstring &right) : expression(tok, where), arg_left(left), arg_right(right)
+    { }
+    bool evaluate(wcstring_list_t &errors);
+};
+
+/* Unary operator like bang */
+class unary_operator : public expression
+{
+public:
+    expr_ref_t subject;
+    unary_operator(token_t tok, range_t where, expr_ref_t &exp) : expression(tok, where), subject(exp) { }
+    bool evaluate(wcstring_list_t &errors);
+};
+
+/* Combining expression. Contains a list of AND or OR expressions. It takes more than two so that we don't have to worry about precedence in the parser. */
+class combining_expression : public expression
+{
+public:
+    const std::vector<expression *> subjects;
+    const std::vector<token_t> combiners;
+
+    combining_expression(token_t tok, range_t where, const std::vector<expression *> &exprs, const std::vector<token_t> &combs) : expression(tok, where), subjects(exprs), combiners(combs)
+    {
+        /* We should have one more subject than combiner */
+        assert(subjects.size() == combiners.size() + 1);
+    }
+
+    /* We are responsible for destroying our expressions */
+    virtual ~combining_expression()
+    {
+        for (size_t i=0; i < subjects.size(); i++)
+        {
+            delete subjects[i];
+        }
+    }
+
+    bool evaluate(wcstring_list_t &errors);
+};
+
+/* Parenthetical expression */
+class parenthetical_expression : public expression
+{
+public:
+    expr_ref_t contents;
+    parenthetical_expression(token_t tok, range_t where, expr_ref_t &expr) : expression(tok, where), contents(expr) { }
+
+    virtual bool evaluate(wcstring_list_t &errors);
+};
+
+void test_parser::add_error(const wchar_t *fmt, ...)
+{
+    assert(fmt != NULL);
+    va_list va;
+    va_start(va, fmt);
+    this->errors.push_back(vformat_string(fmt, va));
+    va_end(va);
+}
+
+expression *test_parser::error(const wchar_t *fmt, ...)
+{
+    assert(fmt != NULL);
+    va_list va;
+    va_start(va, fmt);
+    this->errors.push_back(vformat_string(fmt, va));
+    va_end(va);
+    return NULL;
+}
+
+expression *test_parser::parse_unary_expression(unsigned int start, unsigned int end)
+{
+    if (start >= end)
+    {
+        return error(L"Missing argument at index %u", start);
+    }
+    token_t tok = token_for_string(arg(start))->tok;
+    if (tok == test_bang)
+    {
+        expr_ref_t subject(parse_unary_expression(start + 1, end));
+        if (subject.get())
+        {
+            return new unary_operator(tok, range_t(start, subject->range.end), subject);
+        }
+        else
+        {
+            return NULL;
+        }
+    }
+    else
+    {
+        return parse_primary(start, end);
+    }
+}
+
+/* Parse a combining expression (AND, OR) */
+expression *test_parser::parse_combining_expression(unsigned int start, unsigned int end)
+{
+    if (start >= end)
+        return NULL;
+
+    std::vector<expression *> subjects;
+    std::vector<token_t> combiners;
+    unsigned int idx = start;
+    bool first = true;
+
+    while (idx < end)
+    {
+
+        if (! first)
+        {
+            /* This is not the first expression, so we expect a combiner. */
+            token_t combiner = token_for_string(arg(idx))->tok;
+            if (combiner != test_combine_and && combiner != test_combine_or)
+            {
+                /* Not a combiner, we're done */
+                this->errors.insert(this->errors.begin(), format_string(L"Expected a combining operator like '-a' at index %u", idx));
+                break;
+            }
+            combiners.push_back(combiner);
+            idx++;
+        }
+
+        /* Parse another expression */
+        expression *expr = parse_unary_expression(idx, end);
+        if (! expr)
+        {
+            add_error(L"Missing argument at index %u", idx);
+            if (! first)
+            {
+                /* Clean up the dangling combiner, since it never got its right hand expression */
+                combiners.pop_back();
+            }
+            break;
+        }
+
+        /* Go to the end of this expression */
+        idx = expr->range.end;
+        subjects.push_back(expr);
+        first = false;
+    }
+
+    if (! subjects.empty())
+    {
+        /* Our new expression takes ownership of all expressions we created. The token we pass is irrelevant. */
+        return new combining_expression(test_combine_and, range_t(start, idx), subjects, combiners);
+    }
+    else
+    {
+        /* No subjects */
+        return NULL;
+    }
+}
+
+expression *test_parser::parse_unary_primary(unsigned int start, unsigned int end)
+{
+    /* We need two arguments */
+    if (start >= end)
+    {
+        return error(L"Missing argument at index %u", start);
+    }
+    if (start + 1 >= end)
+    {
+        return error(L"Missing argument at index %u", start + 1);
+    }
+
+    /* All our unary primaries are prefix, so the operator is at start. */
+    const token_info_t *info = token_for_string(arg(start));
+    if (!(info->flags & UNARY_PRIMARY))
+        return NULL;
+
+    return new unary_primary(info->tok, range_t(start, start + 2), arg(start + 1));
+}
+
+expression *test_parser::parse_just_a_string(unsigned int start, unsigned int end)
+{
+    /* Handle a string as a unary primary that is not a token of any other type.
+       e.g. 'test foo -a bar' should evaluate to true
+       We handle this with a unary primary of test_string_n
+    */
+
+    /* We need one arguments */
+    if (start >= end)
+    {
+        return error(L"Missing argument at index %u", start);
+    }
+
+    const token_info_t *info = token_for_string(arg(start));
+    if (info->tok != test_unknown)
+    {
+        return error(L"Unexpected argument type at index %u", start);
+    }
+
+    /* This is hackish; a nicer way to implement this would be with a "just a string" expression type */
+    return new unary_primary(test_string_n, range_t(start, start + 1), arg(start));
+}
+
+#if 0
+expression *test_parser::parse_unary_primary(unsigned int start, unsigned int end)
+{
+    /* We need either one or two arguments */
+    if (start >= end)
+    {
+        return error(L"Missing argument at index %u", start);
+    }
+
+    /* The index of the argument to the unary primary */
+    unsigned int arg_idx;
+
+    /* All our unary primaries are prefix, so any operator is at start. But it also may just be a string, with no operator. */
+    const token_info_t *info = token_for_string(arg(start));
+    if (info->flags & UNARY_PRIMARY)
+    {
+        /* We have an operator. Skip the operator argument */
+        arg_idx = start + 1;
+
+        /* We have some freedom here...do we allow other tokens for the argument to operate on?
+           For example, should 'test -n =' work? I say yes. So no typechecking on the next token. */
+
+    }
+    else if (info->tok == test_unknown)
+    {
+        /* "Just a string. */
+        arg_idx = start;
+    }
+    else
+    {
+        /* Here we don't allow arbitrary tokens as "just a string." I.e. 'test = -a =' should have a parse error. We could relax this at some point. */
+        return error(L"Parse error at argument index %u", start);
+    }
+
+    /* Verify we have the argument we want, i.e. test -n should fail to parse */
+    if (arg_idx >= end)
+    {
+        return error(L"Missing argument at index %u", arg_idx);
+    }
+
+    return new unary_primary(info->tok, range_t(start, arg_idx + 1), arg(arg_idx));
+}
+#endif
+
+expression *test_parser::parse_binary_primary(unsigned int start, unsigned int end)
+{
+    /* We need three arguments */
+    for (unsigned int idx = start; idx < start + 3; idx++)
+    {
+        if (idx >= end)
+        {
+            return error(L"Missing argument at index %u", idx);
+        }
+    }
+
+    /* All our binary primaries are infix, so the operator is at start + 1. */
+    const token_info_t *info = token_for_string(arg(start + 1));
+    if (!(info->flags & BINARY_PRIMARY))
+        return NULL;
+
+    return new binary_primary(info->tok, range_t(start, start + 3), arg(start), arg(start + 2));
+}
+
+expression *test_parser::parse_parenthentical(unsigned int start, unsigned int end)
+{
+    /* We need at least three arguments: open paren, argument, close paren */
+    if (start + 3 >= end)
+        return NULL;
+
+    /* Must start with an open expression */
+    const token_info_t *open_paren = token_for_string(arg(start));
+    if (open_paren->tok != test_paren_open)
+        return NULL;
+
+    /* Parse a subexpression */
+    expression *subexr_ptr = parse_expression(start + 1, end);
+    if (! subexr_ptr)
+        return NULL;
+    expr_ref_t subexpr(subexr_ptr);
+
+    /* Parse a close paren */
+    unsigned close_index = subexpr->range.end;
+    assert(close_index <= end);
+    if (close_index == end)
+    {
+        return error(L"Missing close paren at index %u", close_index);
+    }
+    const token_info_t *close_paren = token_for_string(arg(close_index));
+    if (close_paren->tok != test_paren_close)
+    {
+        return error(L"Expected close paren at index %u", close_index);
+    }
+
+    /* Success */
+    return new parenthetical_expression(test_paren_open, range_t(start, close_index+1), subexpr);
+}
+
+expression *test_parser::parse_primary(unsigned int start, unsigned int end)
+{
+    if (start >= end)
+    {
+        return error(L"Missing argument at index %u", start);
+    }
+
+    expression *expr = NULL;
+    if (! expr) expr = parse_parenthentical(start, end);
+    if (! expr) expr = parse_unary_primary(start, end);
+    if (! expr) expr = parse_binary_primary(start, end);
+    if (! expr) expr = parse_just_a_string(start, end);
+    return expr;
+}
+
+// See IEEE 1003.1 breakdown of the behavior for different parameter counts
+expression *test_parser::parse_3_arg_expression(unsigned int start, unsigned int end)
+{
+    assert(end - start == 3);
+    expression *result = NULL;
+
+    const token_info_t *center_token = token_for_string(arg(start + 1));
+    if (center_token->flags & BINARY_PRIMARY)
+    {
+        result = parse_binary_primary(start, end);
+    }
+    else if (center_token->tok == test_combine_and || center_token->tok == test_combine_or)
+    {
+        expr_ref_t left(parse_unary_expression(start, start + 1));
+        expr_ref_t right(parse_unary_expression(start + 2, start + 3));
+        if (left.get() && right.get())
+        {
+            // Transfer ownership to the vector of subjects
+            std::vector<token_t> combiners(1, center_token->tok);
+            std::vector<expression *> subjects;
+            subjects.push_back(left.release());
+            subjects.push_back(right.release());
+            result = new combining_expression(center_token->tok, range_t(start, end), subjects, combiners);
+        }
+    }
+    else
+    {
+        result = parse_unary_expression(start, end);
+    }
+    return result;
+}
+
+expression *test_parser::parse_4_arg_expression(unsigned int start, unsigned int end)
+{
+    assert(end - start == 4);
+    expression *result = NULL;
+
+    token_t first_token = token_for_string(arg(start))->tok;
+    if (first_token == test_bang)
+    {
+        expr_ref_t subject(parse_3_arg_expression(start + 1, end));
+        if (subject.get())
+        {
+            result = new unary_operator(first_token, range_t(start, subject->range.end), subject);
+        }
+    }
+    else if (first_token == test_paren_open)
+    {
+        result = parse_parenthentical(start, end);
+    }
+    else
+    {
+        result = parse_combining_expression(start, end);
+    }
+    return result;
+}
+
+
+expression *test_parser::parse_expression(unsigned int start, unsigned int end)
+{
+    if (start >= end)
+    {
+        return error(L"Missing argument at index %u", start);
+    }
+
+    unsigned int argc = end - start;
+    switch (argc)
+    {
+        case 0:
+            assert(0); //should have been caught by the above test
+            return NULL;
+
+        case 1:
+        {
+            return error(L"Missing argument at index %u", start + 1);
+        }
+        case 2:
+        {
+            return parse_unary_expression(start, end);
+        }
+
+        case 3:
+        {
+            return parse_3_arg_expression(start, end);
+        }
+
+        case 4:
+        {
+            return parse_4_arg_expression(start, end);
+        }
+
+        default:
+        {
+            return parse_combining_expression(start, end);
+        }
+    }
+}
+
+expression *test_parser::parse_args(const wcstring_list_t &args, wcstring &err)
+{
+    /* Empty list and one-arg list should be handled by caller */
+    assert(args.size() > 1);
+
+    test_parser parser(args);
+    expression *result = parser.parse_expression(0, (unsigned int)args.size());
+
+    /* Handle errors */
+    bool errored = false;
+    for (size_t i = 0; i < parser.errors.size(); i++)
+    {
+        err.append(L"test: ");
+        err.append(parser.errors.at(i));
+        err.push_back(L'\n');
+        errored = true;
+        // For now we only show the first error
+        break;
+    }
+
+    if (result)
+    {
+        /* It's also an error if there are any unused arguments. This is not detected by parse_expression() */
+        assert(result->range.end <= args.size());
+        if (result->range.end < args.size())
+        {
+            if (err.empty())
+            {
+                append_format(err, L"test: unexpected argument at index %lu: '%ls'\n", (unsigned long)result->range.end, args.at(result->range.end).c_str());
+            }
+            errored = true;
+
+            delete result;
+            result = NULL;
+        }
+    }
+
+
+    return result;
+}
+
+bool unary_primary::evaluate(wcstring_list_t &errors)
+{
+    return unary_primary_evaluate(token, arg, errors);
+}
+
+bool binary_primary::evaluate(wcstring_list_t &errors)
+{
+    return binary_primary_evaluate(token, arg_left, arg_right, errors);
+}
+
+bool unary_operator::evaluate(wcstring_list_t &errors)
+{
+    switch (token)
+    {
+        case test_bang:
+            assert(subject.get());
+            return ! subject->evaluate(errors);
+        default:
+            errors.push_back(format_string(L"Unknown token type in %s", __func__));
+            return false;
+
+    }
+}
+
+bool combining_expression::evaluate(wcstring_list_t &errors)
+{
+    switch (token)
+    {
+        case test_combine_and:
+        case test_combine_or:
+        {
+            /* One-element case */
+            if (subjects.size() == 1)
+                return subjects.at(0)->evaluate(errors);
+
+            /* Evaluate our lists, remembering that AND has higher precedence than OR. We can visualize this as a sequence of OR expressions of AND expressions. */
+            assert(combiners.size() + 1 == subjects.size());
+            assert(! subjects.empty());
+
+            size_t idx = 0, max = subjects.size();
+            bool or_result = false;
+            while (idx < max)
+            {
+                if (or_result)
+                {
+                    /* Short circuit */
+                    break;
+                }
+
+                /* Evaluate a stream of AND starting at given subject index. It may only have one element.  */
+                bool and_result = true;
+                for (; idx < max; idx++)
+                {
+                    /* Evaluate it, short-circuiting */
+                    and_result = and_result && subjects.at(idx)->evaluate(errors);
+
+                    /* If the combiner at this index (which corresponding to how we combine with the next subject) is not AND, then exit the loop */
+                    if (idx + 1 < max && combiners.at(idx) != test_combine_and)
+                    {
+                        idx++;
+                        break;
+                    }
+                }
+
+                /* OR it in */
+                or_result = or_result || and_result;
+            }
+            return or_result;
+        }
+
+        default:
+            errors.push_back(format_string(L"Unknown token type in %s", __func__));
+            return BUILTIN_TEST_FAIL;
+
+    }
+}
+
+bool parenthetical_expression::evaluate(wcstring_list_t &errors)
+{
+    return contents->evaluate(errors);
+}
+
+/* IEEE 1003.1 says nothing about what it means for two strings to be "algebraically equal". For example, should we interpret 0x10 as 0, 10, or 16? Here we use only base 10 and use wcstoll, which allows for leading + and -, and leading whitespace. This matches bash. */
+static bool parse_number(const wcstring &arg, long long *out)
+{
+    const wchar_t *str = arg.c_str();
+    wchar_t *endptr = NULL;
+    *out = wcstoll(str, &endptr, 10);
+    return endptr && *endptr == L'\0';
+}
+
+static bool binary_primary_evaluate(test_expressions::token_t token, const wcstring &left, const wcstring &right, wcstring_list_t &errors)
+{
+    using namespace test_expressions;
+    long long left_num, right_num;
+    switch (token)
+    {
+        case test_string_equal:
+            return left == right;
+
+        case test_string_not_equal:
+            return left != right;
+
+        case test_number_equal:
+            return parse_number(left, &left_num) && parse_number(right, &right_num) && left_num == right_num;
+
+        case test_number_not_equal:
+            return parse_number(left, &left_num) && parse_number(right, &right_num) && left_num != right_num;
+
+        case test_number_greater:
+            return parse_number(left, &left_num) && parse_number(right, &right_num) && left_num > right_num;
+
+        case test_number_greater_equal:
+            return parse_number(left, &left_num) && parse_number(right, &right_num) && left_num >= right_num;
+
+        case test_number_lesser:
+            return parse_number(left, &left_num) && parse_number(right, &right_num) && left_num < right_num;
+
+        case test_number_lesser_equal:
+            return parse_number(left, &left_num) && parse_number(right, &right_num) && left_num <= right_num;
+
+        default:
+            errors.push_back(format_string(L"Unknown token type in %s", __func__));
+            return false;
+    }
+}
+
+
+static bool unary_primary_evaluate(test_expressions::token_t token, const wcstring &arg, wcstring_list_t &errors)
+{
+    using namespace test_expressions;
+    struct stat buf;
+    long long num;
+    switch (token)
+    {
+        case test_filetype_b:            // "-b", for block special files
+            return !wstat(arg, &buf) && S_ISBLK(buf.st_mode);
+
+        case test_filetype_c:            // "-c" for character special files
+            return !wstat(arg, &buf) && S_ISCHR(buf.st_mode);
+
+        case test_filetype_d:            // "-d" for directories
+            return !wstat(arg, &buf) && S_ISDIR(buf.st_mode);
+
+        case test_filetype_e:            // "-e" for files that exist
+            return !wstat(arg, &buf);
+
+        case test_filetype_f:            // "-f" for for regular files
+            return !wstat(arg, &buf) && S_ISREG(buf.st_mode);
+
+        case test_filetype_g:            // "-g" for set-group-id
+            return !wstat(arg, &buf) && (S_ISGID & buf.st_mode);
+
+        case test_filetype_h:            // "-h" for symbolic links
+        case test_filetype_L:            // "-L", same as -h
+            return !lwstat(arg, &buf) && S_ISLNK(buf.st_mode);
+
+        case test_filetype_p:            // "-p", for FIFO
+            return !wstat(arg, &buf) && S_ISFIFO(buf.st_mode);
+
+        case test_filetype_S:            // "-S", socket
+            return !wstat(arg, &buf) && S_ISSOCK(buf.st_mode);
+
+        case test_filesize_s:            // "-s", size greater than zero
+            return !wstat(arg, &buf) && buf.st_size > 0;
+
+        case test_filedesc_t:            // "-t", whether the fd is associated with a terminal
+            return parse_number(arg, &num) && num == (int)num && isatty((int)num);
+
+        case test_fileperm_r:            // "-r", read permission
+            return !waccess(arg, R_OK);
+
+        case test_fileperm_u:            // "-u", whether file is setuid
+            return !wstat(arg, &buf) && (S_ISUID & buf.st_mode);
+
+        case test_fileperm_w:            // "-w", whether file write permission is allowed
+            return !waccess(arg, W_OK);
+
+        case test_fileperm_x:            // "-x", whether file execute/search is allowed
+            return !waccess(arg, X_OK);
+
+        case test_string_n:              // "-n", non-empty string
+            return ! arg.empty();
+
+        case test_string_z:              // "-z", true if length of string is 0
+            return arg.empty();
+
+        default:
+            errors.push_back(format_string(L"Unknown token type in %s", __func__));
+            return false;
+    }
+}
+
+};
+
+/*
+ * Evaluate a conditional expression given the arguments.
+ * If fromtest is set, the caller is the test or [ builtin;
+ * with the pointer giving the name of the command.
+ * for POSIX conformance this supports a more limited range
+ * of functionality.
+ *
+ * Return status is the final shell status, i.e. 0 for true,
+ * 1 for false and 2 for error.
+ */
+int builtin_test(parser_t &parser, wchar_t **argv)
+{
+    using namespace test_expressions;
+
+    /* The first argument should be the name of the command ('test') */
+    if (! argv[0])
+        return BUILTIN_TEST_FAIL;
+
+    /* Whether we are invoked with bracket '[' or not */
+    const bool is_bracket = ! wcscmp(argv[0], L"[");
+
+    size_t argc = 0;
+    while (argv[argc + 1])
+        argc++;
+
+    /* If we're bracket, the last argument ought to be ]; we ignore it. Note that argc is the number of arguments after the command name; thus argv[argc] is the last argument. */
+    if (is_bracket)
+    {
+        if (! wcscmp(argv[argc], L"]"))
+        {
+            /* Ignore the closing bracketp */
+            argc--;
+        }
+        else
+        {
+            builtin_show_error(L"[: the last argument must be ']'\n");
+            return BUILTIN_TEST_FAIL;
+        }
+
+    }
+
+    /* Collect the arguments into a list */
+    const wcstring_list_t args(argv + 1, argv + 1 + argc);
+
+    switch (argc)
+    {
+        case 0:
+        {
+            // Per 1003.1, exit false
+            return BUILTIN_TEST_FAIL;
+        }
+        case 1:
+        {
+            // Per 1003.1, exit true if the arg is non-empty
+            return args.at(0).empty() ? BUILTIN_TEST_FAIL : BUILTIN_TEST_SUCCESS;
+        }
+        default:
+        {
+            // Try parsing. If expr is not nil, we are responsible for deleting it.
+            wcstring err;
+            expression *expr = test_parser::parse_args(args, err);
+            if (! expr)
+            {
+#if 0
+                printf("Oops! test was given args:\n");
+                for (size_t i=0; i < argc; i++)
+                {
+                    printf("\t%ls\n", args.at(i).c_str());
+                }
+                printf("and returned parse error: %ls\n", err.c_str());
+#endif
+                builtin_show_error(err);
+                return BUILTIN_TEST_FAIL;
+            }
+            else
+            {
+                wcstring_list_t eval_errors;
+                bool result = expr->evaluate(eval_errors);
+                if (! eval_errors.empty())
+                {
+                    printf("test returned eval errors:\n");
+                    for (size_t i=0; i < eval_errors.size(); i++)
+                    {
+                        printf("\t%ls\n", eval_errors.at(i).c_str());
+                    }
+                }
+                delete expr;
+                return result ? BUILTIN_TEST_SUCCESS : BUILTIN_TEST_FAIL;
+            }
+        }
+    }
+    return 1;
+}

builtin_ulimit.cpp

@@ -0,0 +1,512 @@
+/** \file builtin_ulimit.c Functions defining the ulimit builtin
+
+Functions used for implementing the ulimit builtin.
+
+*/
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <wchar.h>
+#include <wctype.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "fallback.h"
+#include "util.h"
+
+#include "builtin.h"
+#include "common.h"
+#include "wgetopt.h"
+
+
+/**
+   Struct describing a resource limit
+*/
+struct resource_t
+{
+    /**
+       Resource id
+     */
+    int resource;
+    /**
+       Description of resource
+    */
+    const wchar_t *desc;
+    /**
+       Switch used on commandline to specify resource
+    */
+    wchar_t switch_char;
+    /**
+       The implicit multiplier used when setting getting values
+    */
+    int multiplier;
+}
+;
+
+/**
+   Array of resource_t structs, describing all known resource types.
+*/
+static const struct resource_t resource_arr[] =
+{
+    {
+        RLIMIT_CORE, L"Maximum size of core files created", L'c', 1024
+    }
+    ,
+    {
+        RLIMIT_DATA, L"Maximum size of a process’s data segment", L'd', 1024
+    }
+    ,
+    {
+        RLIMIT_FSIZE, L"Maximum size of files created by the shell", L'f', 1024
+    }
+    ,
+#ifdef RLIMIT_MEMLOCK
+    {
+        RLIMIT_MEMLOCK, L"Maximum size that may be locked into memory", L'l', 1024
+    }
+    ,
+#endif
+#ifdef RLIMIT_RSS
+    {
+        RLIMIT_RSS, L"Maximum resident set size", L'm', 1024
+    }
+    ,
+#endif
+    {
+        RLIMIT_NOFILE, L"Maximum number of open file descriptors", L'n', 1
+    }
+    ,
+    {
+        RLIMIT_STACK, L"Maximum stack size", L's', 1024
+    }
+    ,
+    {
+        RLIMIT_CPU, L"Maximum amount of cpu time in seconds", L't', 1
+    }
+    ,
+#ifdef RLIMIT_NPROC
+    {
+        RLIMIT_NPROC, L"Maximum number of processes available to a single user", L'u', 1
+    }
+    ,
+#endif
+#ifdef RLIMIT_AS
+    {
+        RLIMIT_AS, L"Maximum amount of virtual memory available to the shell", L'v', 1024
+    }
+    ,
+#endif
+    {
+        0, 0, 0, 0
+    }
+}
+;
+
+/**
+   Get the implicit multiplication factor for the specified resource limit
+*/
+static int get_multiplier(int what)
+{
+    int i;
+
+    for (i=0; resource_arr[i].desc; i++)
+    {
+        if (resource_arr[i].resource == what)
+        {
+            return resource_arr[i].multiplier;
+        }
+    }
+    return -1;
+}
+
+/**
+   Return the value for the specified resource limit. This function
+   does _not_ multiply the limit value by the multiplier constant used
+   by the commandline ulimit.
+*/
+static rlim_t get(int resource, int hard)
+{
+    struct rlimit ls;
+
+    getrlimit(resource, &ls);
+
+    return hard ? ls.rlim_max:ls.rlim_cur;
+}
+
+/**
+   Print the value of the specified resource limit
+*/
+static void print(int resource, int hard)
+{
+    rlim_t l = get(resource, hard);
+
+    if (l == RLIM_INFINITY)
+        stdout_buffer.append(L"unlimited\n");
+    else
+        append_format(stdout_buffer, L"%d\n", l / get_multiplier(resource));
+
+}
+
+/**
+   Print values of all resource limits
+*/
+static void print_all(int hard)
+{
+    int i;
+    int w=0;
+
+    for (i=0; resource_arr[i].desc; i++)
+    {
+        w=maxi(w, my_wcswidth(resource_arr[i].desc));
+    }
+
+    for (i=0; resource_arr[i].desc; i++)
+    {
+        struct rlimit ls;
+        rlim_t l;
+        getrlimit(resource_arr[i].resource, &ls);
+        l = hard ? ls.rlim_max:ls.rlim_cur;
+
+        const wchar_t *unit = ((resource_arr[i].resource==RLIMIT_CPU)?L"(seconds, ":(get_multiplier(resource_arr[i].resource)==1?L"(":L"(kB, "));
+
+        append_format(stdout_buffer,
+                      L"%-*ls %10ls-%lc) ",
+                      w,
+                      resource_arr[i].desc,
+                      unit,
+                      resource_arr[i].switch_char);
+
+        if (l == RLIM_INFINITY)
+        {
+            stdout_buffer.append(L"unlimited\n");
+        }
+        else
+        {
+            append_format(stdout_buffer, L"%d\n", l/get_multiplier(resource_arr[i].resource));
+        }
+    }
+
+}
+
+/**
+   Returns the description for the specified resource limit
+*/
+static const wchar_t *get_desc(int what)
+{
+    int i;
+
+    for (i=0; resource_arr[i].desc; i++)
+    {
+        if (resource_arr[i].resource == what)
+        {
+            return resource_arr[i].desc;
+        }
+    }
+    return L"Not a resource";
+}
+
+/**
+   Set the new value of the specified resource limit. This function
+   does _not_ multiply the limit value by the multiplier constant used
+   by the commandline ulimit.
+*/
+static int set(int resource, int hard, int soft, rlim_t value)
+{
+    struct rlimit ls;
+    getrlimit(resource, &ls);
+
+    if (hard)
+    {
+        ls.rlim_max = value;
+    }
+
+    if (soft)
+    {
+        ls.rlim_cur = value;
+
+        /*
+          Do not attempt to set the soft limit higher than the hard limit
+        */
+        if ((value == RLIM_INFINITY && ls.rlim_max != RLIM_INFINITY) ||
+                (value != RLIM_INFINITY && ls.rlim_max != RLIM_INFINITY && value > ls.rlim_max))
+        {
+            ls.rlim_cur = ls.rlim_max;
+        }
+    }
+
+    if (setrlimit(resource, &ls))
+    {
+        if (errno == EPERM)
+            append_format(stderr_buffer, L"ulimit: Permission denied when changing resource of type '%ls'\n", get_desc(resource));
+        else
+            builtin_wperror(L"ulimit");
+        return 1;
+    }
+    return 0;
+}
+
+/**
+   The ulimit builtin, used for setting resource limits. Defined in
+   builtin_ulimit.c.
+*/
+static int builtin_ulimit(parser_t &parser, wchar_t ** argv)
+{
+    int hard=0;
+    int soft=0;
+
+    int what = RLIMIT_FSIZE;
+    int report_all = 0;
+
+    int argc = builtin_count_args(argv);
+
+    woptind=0;
+
+    while (1)
+    {
+        static const struct woption
+                long_options[] =
+        {
+            {
+                L"all", no_argument, 0, 'a'
+            }
+            ,
+            {
+                L"hard", no_argument, 0, 'H'
+            }
+            ,
+            {
+                L"soft", no_argument, 0, 'S'
+            }
+            ,
+            {
+                L"core-size", no_argument, 0, 'c'
+            }
+            ,
+            {
+                L"data-size", no_argument, 0, 'd'
+            }
+            ,
+            {
+                L"file-size", no_argument, 0, 'f'
+            }
+            ,
+            {
+                L"lock-size", no_argument, 0, 'l'
+            }
+            ,
+            {
+                L"resident-set-size", no_argument, 0, 'm'
+            }
+            ,
+            {
+                L"file-descriptor-count", no_argument, 0, 'n'
+            }
+            ,
+            {
+                L"stack-size", no_argument, 0, 's'
+            }
+            ,
+            {
+                L"cpu-time", no_argument, 0, 't'
+            }
+            ,
+            {
+                L"process-count", no_argument, 0, 'u'
+            }
+            ,
+            {
+                L"virtual-memory-size", no_argument, 0, 'v'
+            }
+            ,
+            {
+                L"help", no_argument, 0, 'h'
+            }
+            ,
+            {
+                0, 0, 0, 0
+            }
+        }
+        ;
+
+
+        int opt_index = 0;
+
+        int opt = wgetopt_long(argc,
+                               argv,
+                               L"aHScdflmnstuvh",
+                               long_options,
+                               &opt_index);
+        if (opt == -1)
+            break;
+
+        switch (opt)
+        {
+            case 0:
+                if (long_options[opt_index].flag != 0)
+                    break;
+                append_format(stderr_buffer,
+                              BUILTIN_ERR_UNKNOWN,
+                              argv[0],
+                              long_options[opt_index].name);
+                builtin_print_help(parser, argv[0], stderr_buffer);
+
+                return 1;
+
+            case L'a':
+                report_all=1;
+                break;
+
+            case L'H':
+                hard=1;
+                break;
+
+            case L'S':
+                soft=1;
+                break;
+
+            case L'c':
+                what=RLIMIT_CORE;
+                break;
+
+            case L'd':
+                what=RLIMIT_DATA;
+                break;
+
+            case L'f':
+                what=RLIMIT_FSIZE;
+                break;
+#ifdef RLIMIT_MEMLOCK
+            case L'l':
+                what=RLIMIT_MEMLOCK;
+                break;
+#endif
+
+#ifdef RLIMIT_RSS
+            case L'm':
+                what=RLIMIT_RSS;
+                break;
+#endif
+
+            case L'n':
+                what=RLIMIT_NOFILE;
+                break;
+
+            case L's':
+                what=RLIMIT_STACK;
+                break;
+
+            case L't':
+                what=RLIMIT_CPU;
+                break;
+
+#ifdef RLIMIT_NPROC
+            case L'u':
+                what=RLIMIT_NPROC;
+                break;
+#endif
+
+#ifdef RLIMIT_AS
+            case L'v':
+                what=RLIMIT_AS;
+                break;
+#endif
+
+            case L'h':
+                builtin_print_help(parser, argv[0], stdout_buffer);
+                return 0;
+
+            case L'?':
+                builtin_unknown_option(parser, argv[0], argv[woptind-1]);
+                return 1;
+        }
+    }
+
+    if (report_all)
+    {
+        if (argc - woptind == 0)
+        {
+            print_all(hard);
+        }
+        else
+        {
+            stderr_buffer.append(argv[0]);
+            stderr_buffer.append(L": Too many arguments\n");
+            builtin_print_help(parser, argv[0], stderr_buffer);
+            return 1;
+        }
+
+        return 0;
+    }
+
+    switch (argc - woptind)
+    {
+        case 0:
+        {
+            /*
+              Show current limit value
+            */
+            print(what, hard);
+            break;
+        }
+
+        case 1:
+        {
+            /*
+              Change current limit value
+            */
+            rlim_t new_limit;
+            wchar_t *end;
+
+            /*
+              Set both hard and soft limits if nothing else was specified
+            */
+            if (!(hard+soft))
+            {
+                hard=soft=1;
+            }
+
+            if (wcscasecmp(argv[woptind], L"unlimited")==0)
+            {
+                new_limit = RLIM_INFINITY;
+            }
+            else if (wcscasecmp(argv[woptind], L"hard")==0)
+            {
+                new_limit = get(what, 1);
+            }
+            else if (wcscasecmp(argv[woptind], L"soft")==0)
+            {
+                new_limit = get(what, soft);
+            }
+            else
+            {
+                errno=0;
+                new_limit = wcstol(argv[woptind], &end, 10);
+                if (errno || *end)
+                {
+                    append_format(stderr_buffer,
+                                  L"%ls: Invalid limit '%ls'\n",
+                                  argv[0],
+                                  argv[woptind]);
+                    builtin_print_help(parser, argv[0], stderr_buffer);
+                    return 1;
+                }
+                new_limit *= get_multiplier(what);
+            }
+
+            return set(what, hard, soft, new_limit);
+        }
+
+        default:
+        {
+            stderr_buffer.append(argv[0]);
+            stderr_buffer.append(L": Too many arguments\n");
+            builtin_print_help(parser, argv[0], stderr_buffer);
+            return 1;
+        }
+
+    }
+    return 0;
+}

color.cpp

@@ -0,0 +1,365 @@
+/** \file color.cpp Color class implementation
+*/
+
+#include "color.h"
+#include "fallback.h"
+
+bool rgb_color_t::try_parse_special(const wcstring &special)
+{
+    bzero(&data, sizeof data);
+    const wchar_t *name = special.c_str();
+    if (! wcscasecmp(name, L"normal"))
+    {
+        this->type = type_normal;
+    }
+    else if (! wcscasecmp(name, L"reset"))
+    {
+        this->type = type_reset;
+    }
+    else if (! wcscasecmp(name, L"ignore"))
+    {
+        this->type = type_ignore;
+    }
+    else
+    {
+        this->type = type_none;
+    }
+    return this->type != type_none;
+}
+
+static int parse_hex_digit(wchar_t x)
+{
+    switch (x)
+    {
+        case L'0':
+            return 0x0;
+        case L'1':
+            return 0x1;
+        case L'2':
+            return 0x2;
+        case L'3':
+            return 0x3;
+        case L'4':
+            return 0x4;
+        case L'5':
+            return 0x5;
+        case L'6':
+            return 0x6;
+        case L'7':
+            return 0x7;
+        case L'8':
+            return 0x8;
+        case L'9':
+            return 0x9;
+        case L'a':
+        case L'A':
+            return 0xA;
+        case L'b':
+        case L'B':
+            return 0xB;
+        case L'c':
+        case L'C':
+            return 0xC;
+        case L'd':
+        case L'D':
+            return 0xD;
+        case L'e':
+        case L'E':
+            return 0xE;
+        case L'f':
+        case L'F':
+            return 0xF;
+        default:
+            return -1;
+    }
+}
+
+static unsigned long squared_difference(long p1, long p2)
+{
+    unsigned long diff = (unsigned long)labs(p1 - p2);
+    return diff * diff;
+}
+
+static unsigned char convert_color(const unsigned char rgb[3], const uint32_t *colors, size_t color_count)
+{
+    long r = rgb[0], g = rgb[1], b = rgb[2];
+    unsigned long best_distance = (unsigned long)(-1);
+    unsigned char best_index = (unsigned char)(-1);
+    for (unsigned char idx = 0; idx < color_count; idx++)
+    {
+        uint32_t color = colors[idx];
+        long test_r = (color >> 16) & 0xFF, test_g = (color >> 8) & 0xFF, test_b = (color >> 0) & 0xFF;
+        unsigned long distance = squared_difference(r, test_r) + squared_difference(g, test_g) + squared_difference(b, test_b);
+        if (distance <= best_distance)
+        {
+            best_index = idx;
+            best_distance = distance;
+        }
+    }
+    return best_index;
+
+}
+
+bool rgb_color_t::try_parse_rgb(const wcstring &name)
+{
+    bzero(&data, sizeof data);
+    /* We support the following style of rgb formats (case insensitive):
+        #FA3
+        #F3A035
+        FA3
+        F3A035
+    */
+
+    size_t digit_idx = 0, len = name.size();
+
+    /* Skip any leading # */
+    if (len > 0 && name.at(0) == L'#')
+        digit_idx++;
+
+    bool success = false;
+    size_t i;
+    if (len - digit_idx == 3)
+    {
+        // type FA3
+        for (i=0; i < 3; i++)
+        {
+            int val = parse_hex_digit(name.at(digit_idx++));
+            if (val < 0) break;
+            data.rgb[i] = val*16+val;
+        }
+        success = (i == 3);
+    }
+    else if (len - digit_idx == 6)
+    {
+        // type F3A035
+        for (i=0; i < 3; i++)
+        {
+            int hi = parse_hex_digit(name.at(digit_idx++));
+            int lo = parse_hex_digit(name.at(digit_idx++));
+            if (lo < 0 || hi < 0) break;
+            data.rgb[i] = hi*16+lo;
+        }
+        success = (i == 3);
+    }
+    if (success)
+    {
+        this->type = type_rgb;
+    }
+    return success;
+}
+
+struct named_color_t
+{
+    const wchar_t * name;
+    unsigned char idx;
+    unsigned char rgb[3];
+};
+
+static const named_color_t named_colors[11] =
+{
+    {L"black", 0, {0, 0, 0}},
+    {L"red", 1, {0xFF, 0, 0}},
+    {L"green", 2, {0, 0xFF, 0}},
+    {L"brown", 3, {0x72, 0x50, 0}},
+    {L"yellow", 3, {0xFF, 0xFF, 0}},
+    {L"blue", 4, {0, 0, 0xFF}},
+    {L"magenta", 5, {0xFF, 0, 0xFF}},
+    {L"purple", 5, {0xFF, 0, 0xFF}},
+    {L"cyan", 6, {0, 0xFF, 0xFF}},
+    {L"white", 7, {0xFF, 0xFF, 0xFF}},
+    {L"normal", 8, {0xFF, 0xFF, 0XFF}}
+};
+
+wcstring_list_t rgb_color_t::named_color_names(void)
+{
+    size_t count = sizeof named_colors / sizeof *named_colors;
+    wcstring_list_t result;
+    result.reserve(count);
+    for (size_t i=0; i < count; i++)
+    {
+        result.push_back(named_colors[i].name);
+    }
+    return result;
+}
+
+bool rgb_color_t::try_parse_named(const wcstring &str)
+{
+    bzero(&data, sizeof data);
+    size_t max = sizeof named_colors / sizeof *named_colors;
+    for (size_t idx=0; idx < max; idx++)
+    {
+        if (0 == wcscasecmp(str.c_str(), named_colors[idx].name))
+        {
+            data.name_idx = named_colors[idx].idx;
+            this->type = type_named;
+            return true;
+        }
+    }
+    return false;
+}
+
+static const wchar_t *name_for_color_idx(unsigned char idx)
+{
+    size_t max = sizeof named_colors / sizeof *named_colors;
+    for (size_t i=0; i < max; i++)
+    {
+        if (named_colors[i].idx == idx)
+        {
+            return named_colors[i].name;
+        }
+    }
+    return L"unknown";
+}
+
+rgb_color_t::rgb_color_t(unsigned char t, unsigned char i) : type(t), flags(), data()
+{
+    data.name_idx = i;
+}
+
+rgb_color_t rgb_color_t::normal()
+{
+    return rgb_color_t(type_normal);
+}
+rgb_color_t rgb_color_t::reset()
+{
+    return rgb_color_t(type_reset);
+}
+rgb_color_t rgb_color_t::ignore()
+{
+    return rgb_color_t(type_ignore);
+}
+rgb_color_t rgb_color_t::none()
+{
+    return rgb_color_t(type_none);
+}
+rgb_color_t rgb_color_t::white()
+{
+    return rgb_color_t(type_named, 7);
+}
+rgb_color_t rgb_color_t::black()
+{
+    return rgb_color_t(type_named, 0);
+}
+
+static unsigned char term8_color_for_rgb(const unsigned char rgb[3])
+{
+    const uint32_t kColors[] =
+    {
+        0x000000, //Black
+        0xFF0000, //Red
+        0x00FF00, //Green
+        0xFFFF00, //Yellow
+        0x0000FF, //Blue
+        0xFF00FF, //Magenta
+        0x00FFFF, //Cyan
+        0xFFFFFF, //White
+    };
+    return convert_color(rgb, kColors, sizeof kColors / sizeof *kColors);
+}
+
+static unsigned char term256_color_for_rgb(const unsigned char rgb[3])
+{
+    const uint32_t kColors[240] =
+    {
+        0x000000, 0x00005f, 0x000087, 0x0000af, 0x0000d7, 0x0000ff, 0x005f00, 0x005f5f,
+        0x005f87, 0x005faf, 0x005fd7, 0x005fff, 0x008700, 0x00875f, 0x008787, 0x0087af,
+        0x0087d7, 0x0087ff, 0x00af00, 0x00af5f, 0x00af87, 0x00afaf, 0x00afd7, 0x00afff,
+        0x00d700, 0x00d75f, 0x00d787, 0x00d7af, 0x00d7d7, 0x00d7ff, 0x00ff00, 0x00ff5f,
+        0x00ff87, 0x00ffaf, 0x00ffd7, 0x00ffff, 0x5f0000, 0x5f005f, 0x5f0087, 0x5f00af,
+        0x5f00d7, 0x5f00ff, 0x5f5f00, 0x5f5f5f, 0x5f5f87, 0x5f5faf, 0x5f5fd7, 0x5f5fff,
+        0x5f8700, 0x5f875f, 0x5f8787, 0x5f87af, 0x5f87d7, 0x5f87ff, 0x5faf00, 0x5faf5f,
+        0x5faf87, 0x5fafaf, 0x5fafd7, 0x5fafff, 0x5fd700, 0x5fd75f, 0x5fd787, 0x5fd7af,
+        0x5fd7d7, 0x5fd7ff, 0x5fff00, 0x5fff5f, 0x5fff87, 0x5fffaf, 0x5fffd7, 0x5fffff,
+        0x870000, 0x87005f, 0x870087, 0x8700af, 0x8700d7, 0x8700ff, 0x875f00, 0x875f5f,
+        0x875f87, 0x875faf, 0x875fd7, 0x875fff, 0x878700, 0x87875f, 0x878787, 0x8787af,
+        0x8787d7, 0x8787ff, 0x87af00, 0x87af5f, 0x87af87, 0x87afaf, 0x87afd7, 0x87afff,
+        0x87d700, 0x87d75f, 0x87d787, 0x87d7af, 0x87d7d7, 0x87d7ff, 0x87ff00, 0x87ff5f,
+        0x87ff87, 0x87ffaf, 0x87ffd7, 0x87ffff, 0xaf0000, 0xaf005f, 0xaf0087, 0xaf00af,
+        0xaf00d7, 0xaf00ff, 0xaf5f00, 0xaf5f5f, 0xaf5f87, 0xaf5faf, 0xaf5fd7, 0xaf5fff,
+        0xaf8700, 0xaf875f, 0xaf8787, 0xaf87af, 0xaf87d7, 0xaf87ff, 0xafaf00, 0xafaf5f,
+        0xafaf87, 0xafafaf, 0xafafd7, 0xafafff, 0xafd700, 0xafd75f, 0xafd787, 0xafd7af,
+        0xafd7d7, 0xafd7ff, 0xafff00, 0xafff5f, 0xafff87, 0xafffaf, 0xafffd7, 0xafffff,
+        0xd70000, 0xd7005f, 0xd70087, 0xd700af, 0xd700d7, 0xd700ff, 0xd75f00, 0xd75f5f,
+        0xd75f87, 0xd75faf, 0xd75fd7, 0xd75fff, 0xd78700, 0xd7875f, 0xd78787, 0xd787af,
+        0xd787d7, 0xd787ff, 0xd7af00, 0xd7af5f, 0xd7af87, 0xd7afaf, 0xd7afd7, 0xd7afff,
+        0xd7d700, 0xd7d75f, 0xd7d787, 0xd7d7af, 0xd7d7d7, 0xd7d7ff, 0xd7ff00, 0xd7ff5f,
+        0xd7ff87, 0xd7ffaf, 0xd7ffd7, 0xd7ffff, 0xff0000, 0xff005f, 0xff0087, 0xff00af,
+        0xff00d7, 0xff00ff, 0xff5f00, 0xff5f5f, 0xff5f87, 0xff5faf, 0xff5fd7, 0xff5fff,
+        0xff8700, 0xff875f, 0xff8787, 0xff87af, 0xff87d7, 0xff87ff, 0xffaf00, 0xffaf5f,
+        0xffaf87, 0xffafaf, 0xffafd7, 0xffafff, 0xffd700, 0xffd75f, 0xffd787, 0xffd7af,
+        0xffd7d7, 0xffd7ff, 0xffff00, 0xffff5f, 0xffff87, 0xffffaf, 0xffffd7, 0xffffff,
+        0x080808, 0x121212, 0x1c1c1c, 0x262626, 0x303030, 0x3a3a3a, 0x444444, 0x4e4e4e,
+        0x585858, 0x626262, 0x6c6c6c, 0x767676, 0x808080, 0x8a8a8a, 0x949494, 0x9e9e9e,
+        0xa8a8a8, 0xb2b2b2, 0xbcbcbc, 0xc6c6c6, 0xd0d0d0, 0xdadada, 0xe4e4e4, 0xeeeeee
+    };
+    return 16 + convert_color(rgb, kColors, sizeof kColors / sizeof *kColors);
+}
+
+unsigned char rgb_color_t::to_term256_index() const
+{
+    assert(type == type_rgb);
+    return term256_color_for_rgb(data.rgb);
+}
+
+unsigned char rgb_color_t::to_name_index() const
+{
+    assert(type == type_named || type == type_rgb);
+    if (type == type_named)
+    {
+        return data.name_idx;
+    }
+    else if (type == type_rgb)
+    {
+        return term8_color_for_rgb(data.rgb);
+    }
+    else
+    {
+        /* This is an error */
+        return (unsigned char)(-1);
+    }
+}
+
+void rgb_color_t::parse(const wcstring &str)
+{
+    bool success = false;
+    if (! success) success = try_parse_special(str);
+    if (! success) success = try_parse_named(str);
+    if (! success) success = try_parse_rgb(str);
+    if (! success)
+    {
+        bzero(this->data.rgb, sizeof this->data.rgb);
+        this->type = type_none;
+    }
+}
+
+rgb_color_t::rgb_color_t(const wcstring &str)
+{
+    this->parse(str);
+}
+
+rgb_color_t::rgb_color_t(const std::string &str)
+{
+    this->parse(str2wcstring(str));
+}
+
+wcstring rgb_color_t::description() const
+{
+    switch (type)
+    {
+        case type_none:
+            return L"none";
+        case type_named:
+            return format_string(L"named(%d: %ls)", (int)data.name_idx, name_for_color_idx(data.name_idx));
+        case type_rgb:
+            return format_string(L"rgb(0x%02x%02x%02x)", data.rgb[0], data.rgb[1], data.rgb[2]);
+        case type_reset:
+            return L"reset";
+        case type_normal:
+            return L"normal";
+        case type_ignore:
+            return L"ignore";
+        default:
+            abort();
+            return L"";
+    }
+}

color.h

@@ -0,0 +1,177 @@
+/** \file color.h Color class.
+  */
+#ifndef FISH_COLOR_H
+#define FISH_COLOR_H
+
+#include <stdint.h>
+#include <cstddef>
+#include "config.h"
+#include "common.h"
+
+
+/* A type that represents a color. We work hard to keep it at a size of 4 bytes. */
+class rgb_color_t
+{
+
+    /* Types */
+    enum
+    {
+        type_none,
+        type_named,
+        type_rgb,
+        type_normal,
+        type_reset,
+        type_ignore
+    };
+    unsigned char type:4;
+
+    /* Flags */
+    enum
+    {
+        flag_bold = 1 << 0,
+        flag_underline = 1 << 1
+    };
+    unsigned char flags:4;
+
+    union
+    {
+        unsigned char name_idx; //0-10
+        unsigned char rgb[3];
+    } data;
+
+    /** Try parsing a special color name like "normal" */
+    bool try_parse_special(const wcstring &str);
+
+    /** Try parsing an rgb color like "#F0A030" */
+    bool try_parse_rgb(const wcstring &str);
+
+    /** Try parsing an explicit color name like "magenta" */
+    bool try_parse_named(const wcstring &str);
+
+    /* Parsing entry point */
+    void parse(const wcstring &str);
+
+    /** Private constructor */
+    explicit rgb_color_t(unsigned char t, unsigned char i=0);
+
+public:
+
+    /** Default constructor of type none */
+    explicit rgb_color_t() : type(type_none), flags(), data() {}
+
+    /** Parse a color from a string */
+    explicit rgb_color_t(const wcstring &str);
+    explicit rgb_color_t(const std::string &str);
+
+    /** Returns white */
+    static rgb_color_t white();
+
+    /** Returns black */
+    static rgb_color_t black();
+
+    /** Returns the reset special color */
+    static rgb_color_t reset();
+
+    /** Returns the normal special color */
+    static rgb_color_t normal();
+
+    /** Returns the ignore special color */
+    static rgb_color_t ignore();
+
+    /** Returns the none special color */
+    static rgb_color_t none();
+
+    /** Returns whether the color is the ignore special color */
+    bool is_ignore(void) const
+    {
+        return type == type_ignore;
+    }
+
+    /** Returns whether the color is the normal special color */
+    bool is_normal(void) const
+    {
+        return type == type_normal;
+    }
+
+    /** Returns whether the color is the reset special color */
+    bool is_reset(void) const
+    {
+        return type == type_reset;
+    }
+
+    /** Returns whether the color is the none special color */
+    bool is_none(void) const
+    {
+        return type == type_none;
+    }
+
+    /** Returns whether the color is a named color (like "magenta") */
+    bool is_named(void) const
+    {
+        return type == type_named;
+    }
+
+    /** Returns whether the color is specified via RGB components */
+    bool is_rgb(void) const
+    {
+        return type == type_rgb;
+    }
+
+    /** Returns whether the color is special, that is, not rgb or named */
+    bool is_special(void) const
+    {
+        return type != type_named && type != type_rgb;
+    }
+
+    /** Returns a description of the color */
+    wcstring description() const;
+
+    /** Returns the name index for the given color. Requires that the color be named or RGB. */
+    unsigned char to_name_index() const;
+
+    /** Returns the term256 index for the given color. Requires that the color be named or RGB. */
+    unsigned char to_term256_index() const;
+
+    /** Returns whether the color is bold */
+    bool is_bold() const
+    {
+        return !!(flags & flag_bold);
+    }
+
+    /** Set whether the color is bold */
+    void set_bold(bool x)
+    {
+        if (x) flags |= flag_bold;
+        else flags &= ~flag_bold;
+    }
+
+    /** Returns whether the color is underlined */
+    bool is_underline() const
+    {
+        return !!(flags & flag_underline);
+    }
+
+    /** Set whether the color is underlined */
+    void set_underline(bool x)
+    {
+        if (x) flags |= flag_underline;
+        else flags &= ~flag_underline;
+    }
+
+    /** Compare two colors for equality */
+    bool operator==(const rgb_color_t &other) const
+    {
+        return type == other.type && ! memcmp(&data, &other.data, sizeof data);
+    }
+
+    /** Compare two colors for inequality */
+    bool operator!=(const rgb_color_t &other) const
+    {
+        return !(*this == other);
+    }
+
+    /** Returns the names of all named colors */
+    static wcstring_list_t named_color_names(void);
+};
+
+#endif

common.h

@@ -0,0 +1,748 @@
+/** \file common.h
+	Prototypes for various functions, mostly string utilities, that are used by most parts of fish.
+*/
+
+#ifndef FISH_COMMON_H
+/**
+   Header guard
+*/
+#define FISH_COMMON_H
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <wchar.h>
+#include <termios.h>
+#include <string>
+#include <sstream>
+#include <vector>
+#include <pthread.h>
+#include <string.h>
+
+#include <errno.h>
+#include <assert.h>
+#include "util.h"
+
+/**
+   Avoid writing the type name twice in a common "static_cast-initialization".
+   Caveat: This doesn't work with type names containing commas!
+*/
+#define CAST_INIT(type, dst, src) type dst = static_cast<type >(src)
+
+class completion_t;
+
+/* Common string type */
+typedef std::wstring wcstring;
+typedef std::vector<wcstring> wcstring_list_t;
+
+/**
+   Maximum number of bytes used by a single utf-8 character
+*/
+#define MAX_UTF8_BYTES 6
+
+/**
+   This is in the unicode private use area.
+*/
+#define ENCODE_DIRECT_BASE 0xf100
+
+/**
+  Highest legal ascii value
+*/
+#define ASCII_MAX 127u
+
+/**
+  Highest legal 16-bit unicode value
+*/
+#define UCS2_MAX 0xffffu
+
+/**
+  Highest legal byte value
+*/
+#define BYTE_MAX 0xffu
+
+/**
+  Escape special fish syntax characters like the semicolon
+ */
+#define UNESCAPE_SPECIAL 1
+
+/**
+  Allow incomplete escape sequences
+ */
+#define UNESCAPE_INCOMPLETE 2
+
+/* Flags for the escape() and escape_string() functions */
+enum
+{
+    /** Escape all characters, including magic characters like the semicolon */
+    ESCAPE_ALL = 1 << 0,
+
+    /** Do not try to use 'simplified' quoted escapes, and do not use empty quotes as the empty string */
+    ESCAPE_NO_QUOTED = 1 << 1,
+
+    /** Do not escape tildes */
+    ESCAPE_NO_TILDE = 1 << 2
+};
+typedef unsigned int escape_flags_t;
+
+/**
+ Helper macro for errors
+ */
+#define VOMIT_ON_FAILURE(a) do { if (0 != (a)) { int err = errno; fprintf(stderr, "%s failed on line %d in file %s: %d (%s)\n", #a, __LINE__, __FILE__, err, strerror(err)); abort(); }} while (0)
+
+/** Exits without invoking destructors (via _exit), useful for code after fork. */
+void exit_without_destructors(int code) __attribute__((noreturn));
+
+/**
+	Save the shell mode on startup so we can restore them on exit
+*/
+extern struct termios shell_modes;
+
+/**
+   The character to use where the text has been truncated. Is an
+   ellipsis on unicode system and a $ on other systems.
+*/
+extern wchar_t ellipsis_char;
+
+/* Character representing an omitted newline at the end of text */
+extern wchar_t omitted_newline_char;
+
+/**
+   The verbosity level of fish. If a call to debug has a severity
+   level higher than \c debug_level, it will not be printed.
+*/
+extern int debug_level;
+
+/**
+   Profiling flag. True if commands should be profiled.
+*/
+extern char *profile;
+
+/**
+   Name of the current program. Should be set at startup. Used by the
+   debug function.
+*/
+extern const wchar_t *program_name;
+
+/**
+   This macro is used to check that an input argument is not null. It
+   is a bit lika a non-fatal form of assert. Instead of exit-ing on
+   failure, the current function is ended at once. The second
+   parameter is the return value of the current function on failure.
+*/
+#define CHECK( arg, retval )											\
+	if (!(arg)) 														\
+	{																	\
+		debug( 0,														\
+			   "function %s called with null value for argument %s. ",  \
+			   __func__,												\
+			   #arg );													\
+		bugreport();													\
+		show_stackframe();												\
+		return retval;													\
+	}
+
+/**
+   Pause for input, then exit the program. If supported, print a backtrace first.
+*/
+#define FATAL_EXIT()											\
+	{															\
+		char exit_read_buff;			\
+		show_stackframe();										\
+		read( 0, &exit_read_buff, 1 );			\
+		exit_without_destructors( 1 );												\
+	}															\
+ 
+
+/**
+   Exit program at once, leaving an error message about running out of memory.
+*/
+#define DIE_MEM()														\
+	{																	\
+		fwprintf( stderr,												\
+				  L"fish: Out of memory on line %ld of file %s, shutting down fish\n", \
+				  (long)__LINE__,												\
+				  __FILE__ );											\
+		FATAL_EXIT();														\
+	}
+
+/**
+   Check if signals are blocked. If so, print an error message and
+   return from the function performing this check.
+*/
+#define CHECK_BLOCK(retval) 											\
+	if (signal_is_blocked()) 											\
+	{																	\
+		debug( 0,														\
+			    "function %s called while blocking signals. ",  		\
+			   __func__);												\
+		bugreport();													\
+		show_stackframe();												\
+		return retval;													\
+	}
+
+/**
+   Shorthand for wgettext call
+*/
+#define _(wstr) wgettext(wstr)
+
+/**
+   Noop, used to tell xgettext that a string should be translated,
+   even though it is not directly sent to wgettext.
+*/
+#define N_(wstr) wstr
+
+/**
+   Check if the specified string element is a part of the specified string list
+ */
+#define contains( str,... ) contains_internal( str, __VA_ARGS__, NULL )
+
+/**
+  Print a stack trace to stderr
+*/
+void show_stackframe();
+
+
+/**
+   Read a line from the stream f into the string. Returns
+   the number of bytes read or -1 on failure.
+
+   If the carriage return character is encountered, it is
+   ignored. fgetws() considers the line to end if reading the file
+   results in either a newline (L'\n') character, the null (L'\\0')
+   character or the end of file (WEOF) character.
+*/
+int fgetws2(wcstring *s, FILE *f);
+
+
+/**
+ Returns a  wide character string equivalent of the
+ specified multibyte character string
+
+ This function encodes illegal character sequences in a reversible
+ way using the private use area.
+ */
+wcstring str2wcstring(const char *in);
+wcstring str2wcstring(const char *in, size_t len);
+wcstring str2wcstring(const std::string &in);
+
+/**
+   Returns a newly allocated multibyte character string equivalent of
+   the specified wide character string
+
+   This function decodes illegal character sequences in a reversible
+   way using the private use area.
+*/
+char *wcs2str(const wchar_t *in);
+char *wcs2str(const wcstring &in);
+std::string wcs2string(const wcstring &input);
+
+/** Test if a string prefixes another. Returns true if a is a prefix of b */
+bool string_prefixes_string(const wcstring &proposed_prefix, const wcstring &value);
+bool string_prefixes_string(const wchar_t *proposed_prefix, const wcstring &value);
+
+/** Test if a string is a suffix of another */
+bool string_suffixes_string(const wcstring &proposed_suffix, const wcstring &value);
+bool string_suffixes_string(const wchar_t *proposed_suffix, const wcstring &value);
+
+
+/** Test if a string prefixes another without regard to case. Returns true if a is a prefix of b */
+bool string_prefixes_string_case_insensitive(const wcstring &proposed_prefix, const wcstring &value);
+
+/** Test if a list contains a string using a linear search. */
+bool list_contains_string(const wcstring_list_t &list, const wcstring &str);
+
+
+void assert_is_main_thread(const char *who);
+#define ASSERT_IS_MAIN_THREAD_TRAMPOLINE(x) assert_is_main_thread(x)
+#define ASSERT_IS_MAIN_THREAD() ASSERT_IS_MAIN_THREAD_TRAMPOLINE(__FUNCTION__)
+
+void assert_is_background_thread(const char *who);
+#define ASSERT_IS_BACKGROUND_THREAD_TRAMPOLINE(x) assert_is_background_thread(x)
+#define ASSERT_IS_BACKGROUND_THREAD() ASSERT_IS_BACKGROUND_THREAD_TRAMPOLINE(__FUNCTION__)
+
+/* Useful macro for asserting that a lock is locked. This doesn't check whether this thread locked it, which it would be nice if it did, but here it is anyways. */
+void assert_is_locked(void *mutex, const char *who, const char *caller);
+#define ASSERT_IS_LOCKED(x) assert_is_locked((void *)(&x), #x, __FUNCTION__)
+
+/** Format the specified size (in bytes, kilobytes, etc.) into the specified stringbuffer. */
+wcstring format_size(long long sz);
+
+/** Version of format_size that does not allocate memory. */
+void format_size_safe(char buff[128], unsigned long long sz);
+
+/** Our crappier versions of debug which is guaranteed to not allocate any memory, or do anything other than call write(). This is useful after a call to fork() with threads. */
+void debug_safe(int level, const char *msg, const char *param1 = NULL, const char *param2 = NULL, const char *param3 = NULL, const char *param4 = NULL, const char *param5 = NULL, const char *param6 = NULL, const char *param7 = NULL, const char *param8 = NULL, const char *param9 = NULL, const char *param10 = NULL, const char *param11 = NULL, const char *param12 = NULL);
+
+/** Writes out a long safely */
+void format_long_safe(char buff[128], long val);
+void format_long_safe(wchar_t buff[128], long val);
+
+
+template<typename T>
+T from_string(const wcstring &x)
+{
+    T result;
+    std::wstringstream stream(x);
+    stream >> result;
+    return result;
+}
+
+template<typename T>
+T from_string(const std::string &x)
+{
+    T result = T();
+    std::stringstream stream(x);
+    stream >> result;
+    return result;
+}
+
+template<typename T>
+wcstring to_string(const T &x)
+{
+    std::wstringstream stream;
+    stream << x;
+    return stream.str();
+}
+
+/* wstringstream is a huge memory pig. Let's provide some specializations where we can. */
+template<>
+inline wcstring to_string(const long &x)
+{
+    wchar_t buff[128];
+    format_long_safe(buff, x);
+    return wcstring(buff);
+}
+
+template<>
+inline bool from_string(const std::string &x)
+{
+    return ! x.empty() && strchr("YTyt1", x.at(0));
+}
+
+template<>
+inline bool from_string(const wcstring &x)
+{
+    return ! x.empty() && wcschr(L"YTyt1", x.at(0));
+}
+
+template<>
+inline wcstring to_string(const int &x)
+{
+    return to_string(static_cast<long>(x));
+}
+
+wchar_t **make_null_terminated_array(const wcstring_list_t &lst);
+char **make_null_terminated_array(const std::vector<std::string> &lst);
+
+/* Helper class for managing a null-terminated array of null-terminated strings (of some char type) */
+template <typename CharType_t>
+class null_terminated_array_t
+{
+    CharType_t **array;
+
+    /* No assignment or copying */
+    void operator=(null_terminated_array_t rhs);
+    null_terminated_array_t(const null_terminated_array_t &);
+
+    typedef std::vector<std::basic_string<CharType_t> > string_list_t;
+
+    size_t size() const
+    {
+        size_t len = 0;
+        if (array != NULL)
+        {
+            while (array[len] != NULL)
+            {
+                len++;
+            }
+        }
+        return len;
+    }
+
+    void free(void)
+    {
+        ::free((void *)array);
+        array = NULL;
+    }
+
+public:
+    null_terminated_array_t() : array(NULL) { }
+    null_terminated_array_t(const string_list_t &argv) : array(make_null_terminated_array(argv))
+    {
+    }
+
+    ~null_terminated_array_t()
+    {
+        this->free();
+    }
+
+    void set(const string_list_t &argv)
+    {
+        this->free();
+        this->array = make_null_terminated_array(argv);
+    }
+
+    const CharType_t * const *get() const
+    {
+        return array;
+    }
+
+    void clear()
+    {
+        this->free();
+    }
+};
+
+/* Helper function to convert from a null_terminated_array_t<wchar_t> to a null_terminated_array_t<char_t> */
+void convert_wide_array_to_narrow(const null_terminated_array_t<wchar_t> &arr, null_terminated_array_t<char> *output);
+
+/* Helper class to cache a narrow version of a wcstring in a malloc'd buffer, so that we can read it after fork() */
+class narrow_string_rep_t
+{
+private:
+    const char *str;
+
+    /* No copying */
+    narrow_string_rep_t &operator=(const narrow_string_rep_t &);
+    narrow_string_rep_t(const narrow_string_rep_t &x);
+
+public:
+    ~narrow_string_rep_t()
+    {
+        free((void *)str);
+    }
+
+    narrow_string_rep_t() : str(NULL) {}
+
+    void set(const wcstring &s)
+    {
+        free((void *)str);
+        str = wcs2str(s.c_str());
+    }
+
+    const char *get() const
+    {
+        return str;
+    }
+};
+
+bool is_forked_child();
+
+/* Basic scoped lock class */
+class scoped_lock
+{
+    pthread_mutex_t *lock_obj;
+    bool locked;
+
+    /* No copying */
+    scoped_lock &operator=(const scoped_lock &);
+    scoped_lock(const scoped_lock &);
+
+public:
+    void lock(void);
+    void unlock(void);
+    scoped_lock(pthread_mutex_t &mutex);
+    ~scoped_lock();
+};
+
+
+/**
+   A scoped manager to save the current value of some variable, and optionally
+   set it to a new value. On destruction it restores the variable to its old
+   value.
+
+   This can be handy when there are multiple code paths to exit a block.
+*/
+template <typename T>
+class scoped_push
+{
+    T * const ref;
+    T saved_value;
+    bool restored;
+
+public:
+    scoped_push(T *r): ref(r), saved_value(*r), restored(false)
+    {
+    }
+
+    scoped_push(T *r, const T &new_value) : ref(r), saved_value(*r), restored(false)
+    {
+        *r = new_value;
+    }
+
+    ~scoped_push()
+    {
+        restore();
+    }
+
+    void restore()
+    {
+        if (!restored)
+        {
+            std::swap(*ref, saved_value);
+            restored = true;
+        }
+    }
+};
+
+
+/* Wrapper around wcstok */
+class wcstokenizer
+{
+    wchar_t *buffer, *str, *state;
+    const wcstring sep;
+
+    /* No copying */
+    wcstokenizer &operator=(const wcstokenizer &);
+    wcstokenizer(const wcstokenizer &);
+
+public:
+    wcstokenizer(const wcstring &s, const wcstring &separator);
+    bool next(wcstring &result);
+    ~wcstokenizer();
+};
+
+/**
+ Appends a path component, with a / if necessary
+ */
+void append_path_component(wcstring &path, const wcstring &component);
+
+wcstring format_string(const wchar_t *format, ...);
+wcstring vformat_string(const wchar_t *format, va_list va_orig);
+void append_format(wcstring &str, const wchar_t *format, ...);
+void append_formatv(wcstring &str, const wchar_t *format, va_list ap);
+
+/**
+   Returns a newly allocated wide character string array equivalent of
+   the specified multibyte character string array
+*/
+char **wcsv2strv(const wchar_t * const *in);
+
+/**
+   Test if the given string is a valid variable name.
+
+   \return null if this is a valid name, and a pointer to the first invalid character otherwise
+*/
+
+wchar_t *wcsvarname(const wchar_t *str);
+
+
+/**
+   Test if the given string is a valid function name.
+
+   \return null if this is a valid name, and a pointer to the first invalid character otherwise
+*/
+
+const wchar_t *wcsfuncname(const wchar_t *str);
+
+/**
+   Test if the given string is valid in a variable name
+
+   \return 1 if this is a valid name, 0 otherwise
+*/
+
+int wcsvarchr(wchar_t chr);
+
+
+/**
+   A wcswidth workalike. Fish uses this since the regular wcswidth seems flaky.
+*/
+int my_wcswidth(const wchar_t *c);
+
+/**
+   This functions returns the end of the quoted substring beginning at
+   \c in. The type of quoting character is detemrined by examining \c
+   in. Returns 0 on error.
+
+   \param in the position of the opening quote
+*/
+wchar_t *quote_end(const wchar_t *in);
+
+/**
+   A call to this function will reset the error counter. Some
+   functions print out non-critical error messages. These should check
+   the error_count before, and skip printing the message if
+   MAX_ERROR_COUNT messages have been printed. The error_reset()
+   should be called after each interactive command executes, to allow
+   new messages to be printed.
+*/
+void error_reset();
+
+/**
+   This function behaves exactly like a wide character equivalent of
+   the C function setlocale, except that it will also try to detect if
+   the user is using a Unicode character set, and if so, use the
+   unicode ellipsis character as ellipsis, instead of '$'.
+*/
+wcstring wsetlocale(int category, const wchar_t *locale);
+
+/**
+   Checks if \c needle is included in the list of strings specified. A warning is printed if needle is zero.
+
+   \param needle the string to search for in the list
+
+   \return zero if needle is not found, of if needle is null, non-zero otherwise
+*/
+__sentinel bool contains_internal(const wchar_t *needle, ...);
+__sentinel bool contains_internal(const wcstring &needle, ...);
+
+/**
+   Call read while blocking the SIGCHLD signal. Should only be called
+   if you _know_ there is data available for reading, or the program
+   will hang until there is data.
+*/
+long read_blocked(int fd, void *buf, size_t count);
+
+/**
+   Loop a write request while failure is non-critical. Return -1 and set errno
+   in case of critical error.
+ */
+ssize_t write_loop(int fd, const char *buff, size_t count);
+
+/**
+   Loop a read request while failure is non-critical. Return -1 and set errno
+   in case of critical error.
+ */
+ssize_t read_loop(int fd, void *buff, size_t count);
+
+
+/**
+   Issue a debug message with printf-style string formating and
+   automatic line breaking. The string will begin with the string \c
+   program_name, followed by a colon and a whitespace.
+
+   Because debug is often called to tell the user about an error,
+   before using wperror to give a specific error message, debug will
+   never ever modify the value of errno.
+
+   \param level the priority of the message. Lower number means higher priority. Messages with a priority_number higher than \c debug_level will be ignored..
+   \param msg the message format string.
+
+   Example:
+
+   <code>debug( 1, L"Pi = %.3f", M_PI );</code>
+
+   will print the string 'fish: Pi = 3.141', given that debug_level is 1 or higher, and that program_name is 'fish'.
+*/
+void debug(int level, const char *msg, ...);
+void debug(int level, const wchar_t *msg, ...);
+
+/**
+   Replace special characters with backslash escape sequences. Newline is
+   replaced with \n, etc.
+
+   \param in The string to be escaped
+   \param escape_all Whether all characters wich hold special meaning in fish (Pipe, semicolon, etc,) should be escaped, or only unprintable characters
+   \return The escaped string, or 0 if there is not enough memory
+*/
+
+wchar_t *escape(const wchar_t *in, escape_flags_t flags);
+wcstring escape_string(const wcstring &in, escape_flags_t flags);
+
+/**
+   Expand backslashed escapes and substitute them with their unescaped
+   counterparts. Also optionally change the wildcards, the tilde
+   character and a few more into constants which are defined in a
+   private use area of Unicode. This assumes wchar_t is a unicode
+   character set.
+
+   The result must be free()d. The original string is not modified. If
+   an invalid sequence is specified, 0 is returned.
+
+*/
+wchar_t *unescape(const wchar_t * in,
+                  int escape_special);
+
+bool unescape_string(wcstring &str,
+                     int escape_special);
+
+
+/**
+    Returns the width of the terminal window, so that not all
+    functions that use these values continually have to keep track of
+    it separately.
+
+    Only works if common_handle_winch is registered to handle winch signals.
+*/
+int common_get_width();
+/**
+   Returns the height of the terminal window, so that not all
+   functions that use these values continually have to keep track of
+   it separatly.
+
+   Only works if common_handle_winch is registered to handle winch signals.
+*/
+int common_get_height();
+
+/**
+  Handle a window change event by looking up the new window size and
+  saving it in an internal variable used by common_get_wisth and
+  common_get_height().
+*/
+void common_handle_winch(int signal);
+
+/**
+   Write paragraph of output to the specified stringbuffer, and redo
+   the linebreaks to fit the current screen.
+*/
+void write_screen(const wcstring &msg, wcstring &buff);
+
+/**
+   Tokenize the specified string into the specified wcstring_list_t.
+   \param val the input string. The contents of this string is not changed.
+   \param out the list in which to place the elements.
+*/
+void tokenize_variable_array(const wcstring &val, wcstring_list_t &out);
+
+/**
+   Make sure the specified direcotry exists. If needed, try to create
+   it and any currently not existing parent directories..
+
+   \return 0 if, at the time of function return the directory exists, -1 otherwise.
+*/
+int create_directory(const wcstring &d);
+
+/**
+   Print a short message about how to file a bug report to stderr
+*/
+void bugreport();
+
+/**
+   Return the number of seconds from the UNIX epoch, with subsecond
+   precision. This function uses the gettimeofday function, and will
+   have the same precision as that function.
+
+   If an error occurs, NAN is returned.
+ */
+double timef();
+
+/**
+	Call the following function early in main to set the main thread.
+    This is our replacement for pthread_main_np().
+ */
+void set_main_thread();
+bool is_main_thread();
+
+/** Configures thread assertions for testing */
+void configure_thread_assertions_for_testing();
+
+/** Set up a guard to complain if we try to do certain things (like take a lock) after calling fork */
+void setup_fork_guards(void);
+
+/** Save the value of tcgetpgrp so we can restore it on exit */
+void save_term_foreground_process_group(void);
+void restore_term_foreground_process_group(void);
+
+/** Return whether we are the child of a fork */
+bool is_forked_child(void);
+void assert_is_not_forked_child(const char *who);
+#define ASSERT_IS_NOT_FORKED_CHILD_TRAMPOLINE(x) assert_is_not_forked_child(x)
+#define ASSERT_IS_NOT_FORKED_CHILD() ASSERT_IS_NOT_FORKED_CHILD_TRAMPOLINE(__FUNCTION__)
+
+extern "C" {
+    __attribute__((noinline)) void debug_thread_error(void);
+}
+
+/** Return the path of an appropriate runtime data directory */
+std::string common_get_runtime_path();
+
+#endif

complete.h

@@ -0,0 +1,294 @@
+/** \file complete.h
+  Prototypes for functions related to tab-completion.
+
+  These functions are used for storing and retrieving tab-completion
+  data, as well as for performing tab-completion.
+*/
+
+#ifndef FISH_COMPLETE_H
+
+/**
+   Header guard
+*/
+#define FISH_COMPLETE_H
+
+
+#include <wchar.h>
+
+#include "util.h"
+#include "common.h"
+/**
+ * Use all completions
+ */
+#define SHARED 0
+/**
+ * Do not use file completion
+ */
+#define NO_FILES 1
+/**
+ * Require a parameter after completion
+ */
+#define NO_COMMON 2
+/**
+ * Only use the argument list specifies with completion after
+ * option. This is the same as (NO_FILES & NO_COMMON)
+ */
+#define EXCLUSIVE 3
+
+/**
+ * Command is a path
+ */
+#define PATH 1
+/**
+ * Command is not a path
+ */
+#define COMMAND 0
+
+/**
+ * Separator between completion and description
+ */
+#define COMPLETE_SEP L'\004'
+
+/**
+ * Separator between completion and description
+ */
+#define COMPLETE_SEP_STR L"\004"
+
+/**
+ * Separator between completion items in fish_pager. This is used for
+ * completion grouping, e.g. when putting completions with the same
+ * descriptions on the same line.
+ */
+#define COMPLETE_ITEM_SEP L'\uf500'
+
+/**
+ * Character that separates the completion and description on
+ * programmable completions
+ */
+#define PROG_COMPLETE_SEP L'\t'
+
+enum
+{
+    /**
+       Do not insert space afterwards if this is the only completion. (The
+       default is to try insert a space)
+    */
+    COMPLETE_NO_SPACE = 1 << 0,
+
+    /** This completion is case insensitive. */
+    COMPLETE_CASE_INSENSITIVE = 1 << 1,
+
+    /** This is not the suffix of a token, but replaces it entirely */
+    COMPLETE_REPLACES_TOKEN = 1 << 2,
+
+    /**
+       This completion may or may not want a space at the end - guess by
+       checking the last character of the completion.
+    */
+    COMPLETE_AUTO_SPACE = 1 << 3,
+
+    /** This completion should be inserted as-is, without escaping. */
+    COMPLETE_DONT_ESCAPE = 1 << 4,
+
+    /** If you do escape, don't escape tildes */
+    COMPLETE_DONT_ESCAPE_TILDES = 1 << 5
+};
+typedef int complete_flags_t;
+
+
+class completion_t
+{
+
+private:
+    /* No public default constructor */
+    completion_t();
+public:
+
+    /* Destructor. Not inlining it saves code size. */
+    ~completion_t();
+
+    /**
+       The completion string
+    */
+    wcstring completion;
+
+    /**
+       The description for this completion
+    */
+    wcstring description;
+
+    /**
+       Flags determining the completion behaviour.
+
+       Determines whether a space should be inserted after this
+       completion if it is the only possible completion using the
+       COMPLETE_NO_SPACE flag.
+
+       The COMPLETE_NO_CASE can be used to signal that this completion
+       is case insensitive.
+    */
+    int flags;
+
+    bool is_case_insensitive() const
+    {
+        return !!(flags & COMPLETE_CASE_INSENSITIVE);
+    }
+
+    /* Construction. Note: defining these so that they are not inlined reduces the executable size. */
+    completion_t(const wcstring &comp, const wcstring &desc = L"", int flags_val = 0);
+    completion_t(const completion_t &);
+    completion_t &operator=(const completion_t &);
+
+    /* The following are needed for sorting and uniquing completions */
+    bool operator < (const completion_t& rhs) const;
+    bool operator == (const completion_t& rhs) const;
+    bool operator != (const completion_t& rhs) const;
+};
+
+enum
+{
+    COMPLETION_REQUEST_DEFAULT = 0,
+    COMPLETION_REQUEST_AUTOSUGGESTION = 1 << 0, // indicates the completion is for an autosuggestion
+    COMPLETION_REQUEST_DESCRIPTIONS = 1 << 1, // indicates that we want descriptions
+    COMPLETION_REQUEST_FUZZY_MATCH = 1 << 2 // indicates that we don't require a prefix match
+};
+typedef uint32_t completion_request_flags_t;
+
+/** Given a list of completions, returns a list of their completion fields */
+wcstring_list_t completions_to_wcstring_list(const std::vector<completion_t> &completions);
+
+/** Sorts a list of completions */
+void sort_completions(std::vector<completion_t> &completions);
+
+/**
+
+  Add a completion.
+
+  All supplied values are copied, they should be freed by or otherwise
+  disposed by the caller.
+
+  Examples:
+
+  The command 'gcc -o' requires that a file follows it, so the
+  NO_COMMON option is suitable. This can be done using the following
+  line:
+
+  complete -c gcc -s o -r
+
+  The command 'grep -d' required that one of the strings 'read',
+  'skip' or 'recurse' is used. As such, it is suitable to specify that
+  a completion requires one of them. This can be done using the
+  following line:
+
+  complete -c grep -s d -x -a "read skip recurse"
+
+
+  \param cmd Command to complete.
+  \param cmd_type If cmd_type is PATH, cmd will be interpreted as the absolute
+      path of the program (optionally containing wildcards), otherwise it
+      will be interpreted as the command name.
+  \param short_opt The single character name of an option. (-a is a short option,
+      --all and  -funroll are long options)
+  \param long_opt The multi character name of an option. (-a is a short option,
+      --all and  -funroll are long options)
+  \param long_mode Whether to use old style, single dash long options.
+  \param result_mode Whether to search further completions when this
+      completion has been succesfully matched. If result_mode is SHARED,
+      any other completions may also be used. If result_mode is NO_FILES,
+      file completion should not be used, but other completions may be
+      used. If result_mode is NO_COMMON, on option may follow it - only a
+      parameter. If result_mode is EXCLUSIVE, no option may follow it, and
+      file completion is not performed.
+  \param comp A space separated list of completions which may contain subshells.
+  \param desc A description of the completion.
+  \param condition a command to be run to check it this completion should be used.
+      If \c condition is empty, the completion is always used.
+  \param flags A set of completion flags
+*/
+void complete_add(const wchar_t *cmd,
+                  bool cmd_is_path,
+                  wchar_t short_opt,
+                  const wchar_t *long_opt,
+                  int long_mode,
+                  int result_mode,
+                  const wchar_t *condition,
+                  const wchar_t *comp,
+                  const wchar_t *desc,
+                  int flags);
+/**
+  Sets whether the completion list for this command is complete. If
+  true, any options not matching one of the provided options will be
+  flagged as an error by syntax highlighting.
+*/
+void complete_set_authoritative(const wchar_t *cmd, bool cmd_type, bool authoritative);
+
+/**
+  Remove a previously defined completion
+*/
+void complete_remove(const wchar_t *cmd,
+                     bool cmd_is_path,
+                     wchar_t short_opt,
+                     const wchar_t *long_opt);
+
+
+/** Find all completions of the command cmd, insert them into out. If to_load is
+ * not NULL, append all commands that we would autoload, but did not (presumably
+ * because this is not the main thread)
+ */
+void complete(const wcstring &cmd,
+              std::vector<completion_t> &comp,
+              completion_request_flags_t flags,
+              wcstring_list_t *to_load = NULL);
+
+/**
+   Print a list of all current completions into the string.
+
+   \param out The string to write completions to
+*/
+void complete_print(wcstring &out);
+
+/**
+   Tests if the specified option is defined for the specified command
+*/
+int complete_is_valid_option(const wcstring &str,
+                             const wcstring &opt,
+                             wcstring_list_t *inErrorsOrNull,
+                             bool allow_autoload);
+
+/**
+   Tests if the specified argument is valid for the specified option
+   and command
+*/
+bool complete_is_valid_argument(const wcstring &str,
+                                const wcstring &opt,
+                                const wcstring &arg);
+
+
+/**
+   Load command-specific completions for the specified command. This
+   is done automatically whenever completing any given command, so
+   there is no need to call this except in the case of completions
+   with internal dependencies.
+
+   \param cmd the command for which to load command-specific completions
+   \param reload should the commands completions be reloaded, even if they where
+      previously loaded. (This is set to true on actual completions, so that
+      changed completion are updated in running shells)
+*/
+void complete_load(const wcstring &cmd, bool reload);
+
+/**
+   Create a new completion entry
+
+   \param completions The array of completions to append to
+   \param comp The completion string
+   \param desc The description of the completion
+   \param flags completion flags
+
+*/
+void append_completion(std::vector<completion_t> &completions, const wcstring &comp, const wcstring &desc = L"", int flags = 0);
+
+/* Function used for testing */
+void complete_set_variable_names(const wcstring_list_t *names);
+
+#endif

config.sub

@@ -1,40 +1,44 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright 1992-2015 Free Software Foundation, Inc.
+#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+#   2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation,
+#   Inc.
 
-timestamp='2015-03-08'
+timestamp='2006-02-27'
 
-# This file is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
+# This file is (in principle) common to ALL GNU software.
+# The presence of a machine in this file suggests that SOME GNU software
+# can handle that machine.  It does not imply ALL GNU software can.
+#
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
 # (at your option) any later version.
 #
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# General Public License for more details.
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program; if not, see <http://www.gnu.org/licenses/>.
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
+# 02110-1301, USA.
 #
 # As a special exception to the GNU General Public License, if you
 # distribute this file as part of a program that contains a
 # configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that
-# program.  This Exception is an additional permission under section 7
-# of the GNU General Public License, version 3 ("GPLv3").
+# the same distribution terms that you use for the rest of that program.
 
 
-# Please send patches to <config-patches@gnu.org>.
+# Please send patches to <config-patches@gnu.org>.  Submit a context
+# diff and a properly formatted ChangeLog entry.
 #
 # Configuration subroutine to validate and canonicalize a configuration type.
 # Supply the specified configuration type as an argument.
 # If it is invalid, we print an error message on stderr and exit with code 1.
 # Otherwise, we print the canonical config type on stdout and succeed.
 
-# You can get the latest version of this script from:
-# http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD
-
 # This file is supposed to be the same for all GNU packages
 # and recognize all the CPU types, system types and aliases
 # that are meaningful with *any* GNU software.
@@ -68,7 +72,8 @@ Report bugs and patches to <config-patches@gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright 1992-2015 Free Software Foundation, Inc.
+Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -115,18 +120,12 @@ esac
 # Here we must recognize all the valid KERNEL-OS combinations.
 maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
 case $maybe_os in
-  nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
-  linux-musl* | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
-  knetbsd*-gnu* | netbsd*-gnu* | netbsd*-eabi* | \
-  kopensolaris*-gnu* | \
+  nto-qnx* | linux-gnu* | linux-dietlibc | linux-newlib* | linux-uclibc* | \
+  uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | \
   storm-chaos* | os2-emx* | rtmk-nova*)
     os=-$maybe_os
     basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
     ;;
-  android-linux)
-    os=-linux-android
-    basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`-unknown
-    ;;
   *)
     basic_machine=`echo $1 | sed 's/-[^-]*$//'`
     if [ $basic_machine != $1 ]
@@ -149,13 +148,10 @@ case $os in
 	-convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
 	-c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
 	-harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
-	-apple | -axis | -knuth | -cray | -microblaze*)
+	-apple | -axis | -knuth | -cray)
 		os=
 		basic_machine=$1
 		;;
-	-bluegene*)
-		os=-cnk
-		;;
 	-sim | -cisco | -oki | -wec | -winbond)
 		os=
 		basic_machine=$1
@@ -170,10 +166,10 @@ case $os in
 		os=-chorusos
 		basic_machine=$1
 		;;
-	-chorusrdb)
-		os=-chorusrdb
+ 	-chorusrdb)
+ 		os=-chorusrdb
 		basic_machine=$1
-		;;
+ 		;;
 	-hiux*)
 		os=-hiuxwe2
 		;;
@@ -218,12 +214,6 @@ case $os in
 	-isc*)
 		basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
 		;;
-	-lynx*178)
-		os=-lynxos178
-		;;
-	-lynx*5)
-		os=-lynxos5
-		;;
 	-lynx*)
 		os=-lynxos
 		;;
@@ -248,90 +238,60 @@ case $basic_machine in
 	# Some are omitted here because they have special meanings below.
 	1750a | 580 \
 	| a29k \
-	| aarch64 | aarch64_be \
 	| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
 	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
 	| am33_2.0 \
-	| arc | arceb \
-	| arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv7[arm] \
-	| avr | avr32 \
-	| be32 | be64 \
+	| arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr \
 	| bfin \
-	| c4x | c8051 | clipper \
+	| c4x | clipper \
 	| d10v | d30v | dlx | dsp16xx \
-	| e2k | epiphany \
-	| fido | fr30 | frv | ft32 \
+	| fr30 | frv \
 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
-	| hexagon \
 	| i370 | i860 | i960 | ia64 \
 	| ip2k | iq2000 \
-	| k1om \
-	| le32 | le64 \
-	| lm32 \
-	| m32c | m32r | m32rle | m68000 | m68k | m88k \
-	| maxq | mb | microblaze | microblazeel | mcore | mep | metag \
+	| m32r | m32rle | m68000 | m68k | m88k | maxq | mb | microblaze | mcore \
 	| mips | mipsbe | mipseb | mipsel | mipsle \
 	| mips16 \
 	| mips64 | mips64el \
-	| mips64octeon | mips64octeonel \
-	| mips64orion | mips64orionel \
-	| mips64r5900 | mips64r5900el \
 	| mips64vr | mips64vrel \
+	| mips64orion | mips64orionel \
 	| mips64vr4100 | mips64vr4100el \
 	| mips64vr4300 | mips64vr4300el \
 	| mips64vr5000 | mips64vr5000el \
 	| mips64vr5900 | mips64vr5900el \
 	| mipsisa32 | mipsisa32el \
 	| mipsisa32r2 | mipsisa32r2el \
-	| mipsisa32r6 | mipsisa32r6el \
 	| mipsisa64 | mipsisa64el \
 	| mipsisa64r2 | mipsisa64r2el \
-	| mipsisa64r6 | mipsisa64r6el \
 	| mipsisa64sb1 | mipsisa64sb1el \
 	| mipsisa64sr71k | mipsisa64sr71kel \
-	| mipsr5900 | mipsr5900el \
 	| mipstx39 | mipstx39el \
 	| mn10200 | mn10300 \
-	| moxie \
 	| mt \
 	| msp430 \
-	| nds32 | nds32le | nds32be \
-	| nios | nios2 | nios2eb | nios2el \
+	| nios | nios2 \
 	| ns16k | ns32k \
-	| open8 | or1k | or1knd | or32 \
+	| or32 \
 	| pdp10 | pdp11 | pj | pjl \
-	| powerpc | powerpc64 | powerpc64le | powerpcle \
+	| powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \
 	| pyramid \
-	| riscv32 | riscv64 \
-	| rl78 | rx \
-	| score \
-	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+	| sh | sh[1234] | sh[24]a | sh[23]e | sh[34]eb | shbe | shle | sh[1234]le | sh3ele \
 	| sh64 | sh64le \
 	| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
 	| sparcv8 | sparcv9 | sparcv9b | sparcv9v \
-	| spu \
-	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
-	| ubicom32 \
-	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
-	| visium \
+	| strongarm \
+	| tahoe | thumb | tic4x | tic80 | tron \
+	| v850 | v850e \
 	| we32k \
-	| x86 | xc16x | xstormy16 | xtensa \
-	| z8k | z80)
+	| x86 | xscale | xscalee[bl] | xstormy16 | xtensa \
+	| z8k)
 		basic_machine=$basic_machine-unknown
 		;;
-	c54x)
-		basic_machine=tic54x-unknown
+	m32c)
+		basic_machine=$basic_machine-unknown
 		;;
-	c55x)
-		basic_machine=tic55x-unknown
-		;;
-	c6x)
-		basic_machine=tic6x-unknown
-		;;
-	leon|leon[3-9])
-		basic_machine=sparc-$basic_machine
-		;;
-	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
+	m6811 | m68hc11 | m6812 | m68hc12)
+		# Motorola 68HC11/12.
 		basic_machine=$basic_machine-unknown
 		os=-none
 		;;
@@ -341,21 +301,6 @@ case $basic_machine in
 		basic_machine=mt-unknown
 		;;
 
-	strongarm | thumb | xscale)
-		basic_machine=arm-unknown
-		;;
-	xgate)
-		basic_machine=$basic_machine-unknown
-		os=-none
-		;;
-	xscaleeb)
-		basic_machine=armeb-unknown
-		;;
-
-	xscaleel)
-		basic_machine=armel-unknown
-		;;
-
 	# We use `pc' rather than `unknown'
 	# because (1) that's what they normally are, and
 	# (2) the word "unknown" tends to confuse beginning users.
@@ -370,87 +315,66 @@ case $basic_machine in
 	# Recognize the basic CPU types with company name.
 	580-* \
 	| a29k-* \
-	| aarch64-* | aarch64_be-* \
 	| alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
 	| alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
-	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
+	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
 	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
-	| avr-* | avr32-* \
-	| be32-* | be64-* \
+	| avr-* \
 	| bfin-* | bs2000-* \
-	| c[123]* | c30-* | [cjt]90-* | c4x-* \
-	| c8051-* | clipper-* | craynv-* | cydra-* \
+	| c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* | c55x-* | c6x-* \
+	| clipper-* | craynv-* | cydra-* \
 	| d10v-* | d30v-* | dlx-* \
-	| e2k-* | elxsi-* \
-	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
+	| elxsi-* \
+	| f30[01]-* | f700-* | fr30-* | frv-* | fx80-* \
 	| h8300-* | h8500-* \
 	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
-	| hexagon-* \
 	| i*86-* | i860-* | i960-* | ia64-* \
 	| ip2k-* | iq2000-* \
-	| k1om-* \
-	| le32-* | le64-* \
-	| lm32-* \
-	| m32c-* | m32r-* | m32rle-* \
+	| m32r-* | m32rle-* \
 	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
-	| m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
-	| microblaze-* | microblazeel-* \
+	| m88110-* | m88k-* | maxq-* | mcore-* \
 	| mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
 	| mips16-* \
 	| mips64-* | mips64el-* \
-	| mips64octeon-* | mips64octeonel-* \
-	| mips64orion-* | mips64orionel-* \
-	| mips64r5900-* | mips64r5900el-* \
 	| mips64vr-* | mips64vrel-* \
+	| mips64orion-* | mips64orionel-* \
 	| mips64vr4100-* | mips64vr4100el-* \
 	| mips64vr4300-* | mips64vr4300el-* \
 	| mips64vr5000-* | mips64vr5000el-* \
 	| mips64vr5900-* | mips64vr5900el-* \
 	| mipsisa32-* | mipsisa32el-* \
 	| mipsisa32r2-* | mipsisa32r2el-* \
-	| mipsisa32r6-* | mipsisa32r6el-* \
 	| mipsisa64-* | mipsisa64el-* \
 	| mipsisa64r2-* | mipsisa64r2el-* \
-	| mipsisa64r6-* | mipsisa64r6el-* \
 	| mipsisa64sb1-* | mipsisa64sb1el-* \
 	| mipsisa64sr71k-* | mipsisa64sr71kel-* \
-	| mipsr5900-* | mipsr5900el-* \
 	| mipstx39-* | mipstx39el-* \
 	| mmix-* \
 	| mt-* \
 	| msp430-* \
-	| nds32-* | nds32le-* | nds32be-* \
-	| nios-* | nios2-* | nios2eb-* | nios2el-* \
+	| nios-* | nios2-* \
 	| none-* | np1-* | ns16k-* | ns32k-* \
-	| open8-* \
-	| or1k*-* \
 	| orion-* \
 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
-	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
+	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \
 	| pyramid-* \
-	| rl78-* | romp-* | rs6000-* | rx-* \
-	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
+	| romp-* | rs6000-* \
+	| sh-* | sh[1234]-* | sh[24]a-* | sh[23]e-* | sh[34]eb-* | shbe-* \
 	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
 	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
 	| sparclite-* \
-	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
-	| tahoe-* \
+	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | strongarm-* | sv1-* | sx?-* \
+	| tahoe-* | thumb-* \
 	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
-	| tile*-* \
 	| tron-* \
-	| ubicom32-* \
-	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
-	| vax-* \
-	| visium-* \
+	| v850-* | v850e-* | vax-* \
 	| we32k-* \
-	| x86-* | x86_64-* | xc16x-* | xps100-* \
-	| xstormy16-* | xtensa*-* \
+	| x86-* | x86_64-* | xps100-* | xscale-* | xscalee[bl]-* \
+	| xstormy16-* | xtensa-* \
 	| ymp-* \
-	| z8k-* | z80-*)
+	| z8k-*)
 		;;
-	# Recognize the basic CPU types without company name, with glob match.
-	xtensa*)
-		basic_machine=$basic_machine-unknown
+	m32c-*)
 		;;
 	# Recognize the various machine names and aliases which stand
 	# for a CPU type and a company and sometimes even an OS.
@@ -468,7 +392,7 @@ case $basic_machine in
 		basic_machine=a29k-amd
 		os=-udi
 		;;
-	abacus)
+    	abacus)
 		basic_machine=abacus-unknown
 		;;
 	adobe68k)
@@ -514,13 +438,6 @@ case $basic_machine in
 		basic_machine=m68k-apollo
 		os=-bsd
 		;;
-	aros)
-		basic_machine=i386-pc
-		os=-aros
-		;;
-        asmjs)
-		basic_machine=asmjs-unknown
-		;;
 	aux)
 		basic_machine=m68k-apple
 		os=-aux
@@ -529,35 +446,10 @@ case $basic_machine in
 		basic_machine=ns32k-sequent
 		os=-dynix
 		;;
-	blackfin)
-		basic_machine=bfin-unknown
-		os=-linux
-		;;
-	blackfin-*)
-		basic_machine=bfin-`echo $basic_machine | sed 's/^[^-]*-//'`
-		os=-linux
-		;;
-	bluegene*)
-		basic_machine=powerpc-ibm
-		os=-cnk
-		;;
-	c54x-*)
-		basic_machine=tic54x-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
-	c55x-*)
-		basic_machine=tic55x-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
-	c6x-*)
-		basic_machine=tic6x-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
 	c90)
 		basic_machine=c90-cray
 		os=-unicos
 		;;
-	cegcc)
-		basic_machine=arm-unknown
-		os=-cegcc
-		;;
 	convex-c1)
 		basic_machine=c1-convex
 		os=-bsd
@@ -586,8 +478,8 @@ case $basic_machine in
 		basic_machine=craynv-cray
 		os=-unicosmp
 		;;
-	cr16 | cr16-*)
-		basic_machine=cr16-unknown
+	cr16c)
+		basic_machine=cr16c-unknown
 		os=-elf
 		;;
 	crds | unos)
@@ -625,10 +517,6 @@ case $basic_machine in
 		basic_machine=m88k-motorola
 		os=-sysv3
 		;;
-	dicos)
-		basic_machine=i686-pc
-		os=-dicos
-		;;
 	djgpp)
 		basic_machine=i586-pc
 		os=-msdosdjgpp
@@ -744,6 +632,7 @@ case $basic_machine in
 	i370-ibm* | ibm*)
 		basic_machine=i370-ibm
 		;;
+# I'm not sure what "Sysv32" means.  Should this be sysv3.2?
 	i*86v32)
 		basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
 		os=-sysv32
@@ -782,17 +671,6 @@ case $basic_machine in
 		basic_machine=m68k-isi
 		os=-sysv
 		;;
-	leon-*|leon[3-9]-*)
-		basic_machine=sparc-`echo $basic_machine | sed 's/-.*//'`
-		;;
-	m68knommu)
-		basic_machine=m68k-unknown
-		os=-linux
-		;;
-	m68knommu-*)
-		basic_machine=m68k-`echo $basic_machine | sed 's/^[^-]*-//'`
-		os=-linux
-		;;
 	m88k-omron*)
 		basic_machine=m88k-omron
 		;;
@@ -804,21 +682,10 @@ case $basic_machine in
 		basic_machine=ns32k-utek
 		os=-sysv
 		;;
-	microblaze*)
-		basic_machine=microblaze-xilinx
-		;;
-	mingw64)
-		basic_machine=x86_64-pc
-		os=-mingw64
-		;;
 	mingw32)
-		basic_machine=i686-pc
+		basic_machine=i386-pc
 		os=-mingw32
 		;;
-	mingw32ce)
-		basic_machine=arm-unknown
-		os=-mingw32ce
-		;;
 	miniframe)
 		basic_machine=m68000-convergent
 		;;
@@ -840,10 +707,6 @@ case $basic_machine in
 		basic_machine=powerpc-unknown
 		os=-morphos
 		;;
-	moxiebox)
-		basic_machine=moxie-unknown
-		os=-moxiebox
-		;;
 	msdos)
 		basic_machine=i386-pc
 		os=-msdos
@@ -851,18 +714,10 @@ case $basic_machine in
 	ms1-*)
 		basic_machine=`echo $basic_machine | sed -e 's/ms1-/mt-/'`
 		;;
-	msys)
-		basic_machine=i686-pc
-		os=-msys
-		;;
 	mvs)
 		basic_machine=i370-ibm
 		os=-mvs
 		;;
-	nacl)
-		basic_machine=le32-unknown
-		os=-nacl
-		;;
 	ncr3000)
 		basic_machine=i486-ncr
 		os=-sysv4
@@ -927,12 +782,6 @@ case $basic_machine in
 	np1)
 		basic_machine=np1-gould
 		;;
-	neo-tandem)
-		basic_machine=neo-tandem
-		;;
-	nse-tandem)
-		basic_machine=nse-tandem
-		;;
 	nsr-tandem)
 		basic_machine=nsr-tandem
 		;;
@@ -963,14 +812,6 @@ case $basic_machine in
 		basic_machine=i860-intel
 		os=-osf
 		;;
-	parisc)
-		basic_machine=hppa-unknown
-		os=-linux
-		;;
-	parisc-*)
-		basic_machine=hppa-`echo $basic_machine | sed 's/^[^-]*-//'`
-		os=-linux
-		;;
 	pbd)
 		basic_machine=sparc-tti
 		;;
@@ -1015,10 +856,9 @@ case $basic_machine in
 		;;
 	power)	basic_machine=power-ibm
 		;;
-	ppc | ppcbe)	basic_machine=powerpc-unknown
+	ppc)	basic_machine=powerpc-unknown
 		;;
-	ppc-* | ppcbe-*)
-		basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
+	ppc-*)	basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
 		;;
 	ppcle | powerpclittle | ppc-le | powerpc-little)
 		basic_machine=powerpcle-unknown
@@ -1043,11 +883,7 @@ case $basic_machine in
 		basic_machine=i586-unknown
 		os=-pw32
 		;;
-	rdos | rdos64)
-		basic_machine=x86_64-pc
-		os=-rdos
-		;;
-	rdos32)
+	rdos)
 		basic_machine=i386-pc
 		os=-rdos
 		;;
@@ -1077,10 +913,6 @@ case $basic_machine in
 	sb1el)
 		basic_machine=mipsisa64sb1el-unknown
 		;;
-	sde)
-		basic_machine=mipsisa32-sde
-		os=-elf
-		;;
 	sei)
 		basic_machine=mips-sei
 		os=-seiux
@@ -1092,9 +924,6 @@ case $basic_machine in
 		basic_machine=sh-hitachi
 		os=-hms
 		;;
-	sh5el)
-		basic_machine=sh5le-unknown
-		;;
 	sh64)
 		basic_machine=sh64-unknown
 		;;
@@ -1116,9 +945,6 @@ case $basic_machine in
 		basic_machine=i860-stratus
 		os=-sysv4
 		;;
-	strongarm-* | thumb-*)
-		basic_machine=arm-`echo $basic_machine | sed 's/^[^-]*-//'`
-		;;
 	sun2)
 		basic_machine=m68000-sun
 		;;
@@ -1175,9 +1001,17 @@ case $basic_machine in
 		basic_machine=t90-cray
 		os=-unicos
 		;;
-	tile*)
-		basic_machine=$basic_machine-unknown
-		os=-linux-gnu
+	tic54x | c54x*)
+		basic_machine=tic54x-unknown
+		os=-coff
+		;;
+	tic55x | c55x*)
+		basic_machine=tic55x-unknown
+		os=-coff
+		;;
+	tic6x | c6x*)
+		basic_machine=tic6x-unknown
+		os=-coff
 		;;
 	tx39)
 		basic_machine=mipstx39-unknown
@@ -1246,9 +1080,6 @@ case $basic_machine in
 	xps | xps100)
 		basic_machine=xps100-honeywell
 		;;
-	xscale-* | xscalee[bl]-*)
-		basic_machine=`echo $basic_machine | sed 's/^xscale/arm/'`
-		;;
 	ymp)
 		basic_machine=ymp-cray
 		os=-unicos
@@ -1257,10 +1088,6 @@ case $basic_machine in
 		basic_machine=z8k-unknown
 		os=-sim
 		;;
-	z80-*-coff)
-		basic_machine=z80-unknown
-		os=-sim
-		;;
 	none)
 		basic_machine=none-none
 		os=-none
@@ -1299,7 +1126,7 @@ case $basic_machine in
 	we32k)
 		basic_machine=we32k-att
 		;;
-	sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele)
+	sh[1234] | sh[24]a | sh[34]eb | sh[1234]le | sh[23]ele)
 		basic_machine=sh-unknown
 		;;
 	sparc | sparcv8 | sparcv9 | sparcv9b | sparcv9v)
@@ -1346,12 +1173,9 @@ esac
 if [ x"$os" != x"" ]
 then
 case $os in
-	# First match some system type aliases
-	# that might get confused with valid system types.
+        # First match some system type aliases
+        # that might get confused with valid system types.
 	# -solaris* is a basic system type, with this one exception.
-	-auroraux)
-		os=-auroraux
-		;;
 	-solaris1 | -solaris1.*)
 		os=`echo $os | sed -e 's|solaris1|sunos4|'`
 		;;
@@ -1372,31 +1196,29 @@ case $os in
 	# Each alternative MUST END IN A *, to match a version number.
 	# -sysv* is not here because it comes later, after sysvr4.
 	-gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
-	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
-	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
-	      | -sym* | -kopensolaris* | -plan9* \
+	      | -*vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[34]*\
+	      | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
 	      | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
-	      | -aos* | -aros* | -cloudabi* \
+	      | -aos* \
 	      | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
 	      | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
 	      | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* \
-	      | -bitrig* | -openbsd* | -solidbsd* \
+	      | -openbsd* | -solidbsd* \
 	      | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
 	      | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
 	      | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
 	      | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \
-	      | -chorusos* | -chorusrdb* | -cegcc* \
-	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
-	      | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
-	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
-	      | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
+	      | -chorusos* | -chorusrdb* \
+	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+	      | -mingw32* | -linux-gnu* | -linux-newlib* | -linux-uclibc* \
+	      | -uxpv* | -beos* | -mpeix* | -udk* \
 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
 	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
 	      | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
 	      | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \
 	      | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
-	      | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* | -tirtos*)
+	      | -skyos* | -haiku* | -rdos*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)
@@ -1435,7 +1257,7 @@ case $os in
 	-opened*)
 		os=-openedition
 		;;
-	-os400*)
+        -os400*)
 		os=-os400
 		;;
 	-wince*)
@@ -1484,7 +1306,7 @@ case $os in
 	-sinix*)
 		os=-sysv4
 		;;
-	-tpf*)
+        -tpf*)
 		os=-tpf
 		;;
 	-triton*)
@@ -1520,14 +1342,12 @@ case $os in
 	-aros*)
 		os=-aros
 		;;
+	-kaos*)
+		os=-kaos
+		;;
 	-zvmoe)
 		os=-zvmoe
 		;;
-	-dicos*)
-		os=-dicos
-		;;
-	-nacl*)
-		;;
 	-none)
 		;;
 	*)
@@ -1550,12 +1370,6 @@ else
 # system, and we'll never get to this point.
 
 case $basic_machine in
-	score-*)
-		os=-elf
-		;;
-	spu-*)
-		os=-elf
-		;;
 	*-acorn)
 		os=-riscix1.2
 		;;
@@ -1565,24 +1379,9 @@ case $basic_machine in
 	arm*-semi)
 		os=-aout
 		;;
-	c4x-* | tic4x-*)
-		os=-coff
-		;;
-	c8051-*)
-		os=-elf
-		;;
-	hexagon-*)
-		os=-elf
-		;;
-	tic54x-*)
-		os=-coff
-		;;
-	tic55x-*)
-		os=-coff
-		;;
-	tic6x-*)
-		os=-coff
-		;;
+    c4x-* | tic4x-*)
+        os=-coff
+        ;;
 	# This must come before the *-dec entry.
 	pdp10-*)
 		os=-tops20
@@ -1601,13 +1400,13 @@ case $basic_machine in
 		;;
 	m68000-sun)
 		os=-sunos3
+		# This also exists in the configure program, but was not the
+		# default.
+		# os=-sunos4
 		;;
 	m68*-cisco)
 		os=-aout
 		;;
-	mep-*)
-		os=-elf
-		;;
 	mips*-cisco)
 		os=-elf
 		;;
@@ -1632,7 +1431,7 @@ case $basic_machine in
 	*-ibm)
 		os=-aix
 		;;
-	*-knuth)
+    	*-knuth)
 		os=-mmixware
 		;;
 	*-wec)
@@ -1737,7 +1536,7 @@ case $basic_machine in
 			-sunos*)
 				vendor=sun
 				;;
-			-cnk*|-aix*)
+			-aix*)
 				vendor=ibm
 				;;
 			-beos*)

create_wajig_completions.py

@@ -0,0 +1,121 @@
+#!/usr/bin/env python
+# -*- python -*-
+
+# Program to generate fish completion function for wajig.
+# It runs 'wajig command' and analyzes the output to build a
+# completion file which it writes to stdout.
+# To use the result, direct stdout to
+# ~/.fish.d/completions/wajig.fish.
+
+# Author Reuben Thomas, from Don Rozenberg's bash_completion.py and
+# fish's apt-get.fish.
+
+import os
+import re
+import pprint
+pp = pprint.PrettyPrinter()
+
+def escape_quotes(s):
+  return re.sub('\'', '\\\'', s)
+
+# Run wajig command
+f = os.popen('wajig commands', 'r')
+
+lines = f.readlines()
+
+option_patt = r'^-([a-z]*)\|--([a-z]*) +([^ ].*)'
+option_patt_r = re.compile(option_patt)
+
+command_patt = r'^([a-z-]*) +([^ ].*)'
+command_patt_r = re.compile(command_patt)
+
+os_str = []
+os_str.append('')
+ol_str = []
+ol_str.append('')
+oh_str = []
+oh_str.append('')
+o_i = 0
+
+c_str = []
+c_str.append('')
+ch_str = []
+ch_str.append('')
+c_i = 0
+
+for l in lines:
+    l = l.strip() 
+    if l == '' or l.find(':') > -1 or l.find('Run') == 0:
+        continue
+    if l.find('-') == 0:
+        mo = option_patt_r.search(l)
+        if mo == None:
+            continue
+        os_str[o_i] = mo.group(1)
+        os_str.append('')
+        ol_str[o_i] = mo.group(2)
+        ol_str.append('')
+        oh_str[o_i] = escape_quotes(mo.group(3))
+        oh_str.append('')
+        o_i += 1
+    else:
+        mo = command_patt_r.search(l)
+        if mo == None:
+            continue
+        c_str[c_i] = mo.group(1)
+        c_str.append('')
+        ch_str[c_i] = escape_quotes(mo.group(2))
+        ch_str.append('')
+        c_i += 1
+
+# For debugging, print the commands and options.
+#print
+#pp.pprint(c_str)
+
+#print
+#pp.pprint(os_str)
+#print
+#pp.pprint(ol_str)
+
+part1 = '''function __fish_wajig_no_subcommand -d (N_ 'Test if wajig has yet to be given the subcommand')
+	for i in (commandline -opc)
+		if contains -- $i'''
+
+part2 = '''
+			return 1
+		end
+	end
+	return 0
+end
+
+function __fish_wajig_use_package -d (N_ 'Test if wajig command should have packages as potential completion')
+	for i in (commandline -opc)
+		if contains -- $i contains bug build build-depend changelog dependents describe detail hold install installr installrs installs list list-files news package purge purge-depend readme recursive recommended reconfigure reinstall remove remove-depend repackage show showinstall showremove showupgrade size sizes source suggested unhold upgrade versions whatis
+			return 0
+		end
+	end
+	return 1
+end
+
+complete -c wajig -n '__fish_wajig_use_package' -a '(__fish_print_packages)' -d (N_ 'Package')'''
+
+wajig = part1
+
+#add the commands.
+for i in range(0, len(c_str) - 1):
+    wajig = "%s %s" % (wajig, c_str[i])
+
+#add part2
+wajig = "%s%s" % (wajig, part2)
+
+#add the options.
+wajig = "%s%s" % (wajig, os_str[0].lstrip())
+for i in range(1, len(os_str) - 1):
+    wajig = "%s\ncomplete -c apt-get -s %s -l %s -d (N_ '%s')" % (wajig, os_str[i], ol_str[i], oh_str[i])
+
+#add the commands.
+for i in range(0, len(c_str) - 1):
+    wajig = "%s\ncomplete -f -n '__fish_wajig_no_subcommand' -c wajig -a '%s' -d(N_ '%s')" % (wajig, c_str[i], ch_str[i])
+
+#print it all
+print wajig

debian/compat

@@ -1 +0,0 @@
-9

debian/control

@@ -1,45 +0,0 @@
-Source: fish
-Section: shells
-Priority: extra
-Maintainer: ridiculous_fish <corydoras@ridiculousfish.com>
-Uploaders: David Adam <zanchey@ucc.gu.uwa.edu.au>
-Build-Depends: debhelper (>= 9.0.0), libncurses5-dev, autoconf, autotools-dev, dh-autoreconf, gettext
-# When libpcre2-dev is available on all supported Debian versions, add a dependency on that.
-Standards-Version: 3.9.4
-Homepage: http://fishshell.com/
-Vcs-Git: git://github.com/fish-shell/fish-shell.git
-Vcs-Browser: https://github.com/fish-shell/fish-shell
-
-Package: fish
-Architecture: any
-Depends: ${shlibs:Depends}, ${misc:Depends}, fish-common (= ${source:Version}), passwd (>= 4.0.3-10), bc, gettext-base, man-db
-Recommends: xsel (>=1.2.0)
-Description: friendly interactive shell
- Fish is a command-line shell for modern systems, focusing on user-friendliness,
- sensibility and discoverability in interactive use. The syntax is simple, but
- not POSIX compliant.
-
-Package: fish-common
-Architecture: all
-Depends: ${misc:Depends}
-Recommends: fish, python (>=2.6)
-Suggests: xdg-utils
-Replaces: fish (<= 2.1.1.dfsg-2)
-Description: friendly interactive shell (architecture-independent files)
- Fish is a command-line shell for modern systems, focusing on user-friendliness,
- sensibility and discoverability in interactive use. The syntax is simple, but
- not POSIX compliant.
- .
- This package contains the common fish files shared by all architectures.
-
-Package: fish-dbg
-Architecture: any
-Section: debug
-Priority: extra
-Depends: fish (= ${binary:Version}), ${misc:Depends}
-Description: debugging symbols for friendly interactive shell
- Fish is a command-line shell for modern systems, focusing on user-friendliness,
- sensibility and discoverability in interactive use. The syntax is simple, but
- not POSIX compliant.
- .
- This package contains the debugging symbols for fish.

debian/copyright

@@ -1,101 +0,0 @@
-This work was packaged for Debian by David Adam <zanchey@ucc.gu.uwa.edu.au>
-on Thu, 14 Jun 2012 20:33:34 +0800, based on work by James Vega
-<jamessan@jamessan.com>. Modifications from the downstream Debian maintainer,
-Tristan Seligmann <mithrandi@debian.org>, have also been included.
-
-It was downloaded from:
-
-    https://github.com/fish-shell/fish-shell
-
-Upstream Authors:
-
-    Axel Liljencrantz
-    ridiculous_fish
-
-Copyright:
-
-    Copyright (C) 2005-2008 Axel Liljencrantz
-    Copyright (C) 2011-2012 ridiculous_fish
-
-License:
-
-Copyright (C) 2005-2008 Axel Liljencrantz
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License version 2 as
-    published by the Free Software Foundation.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
-    MA 02110-1301, USA.
-
-On Debian systems, the complete text of the GNU General
-Public License version 2 can be found in "/usr/share/common-licenses/GPL-2".
-
-Fish contains code from the PCRE2 library to support regular expressions. This
-code, created by Philip Hazel, is distributed under the terms of the BSD
-license. Copyright © 1997-2015 University of Cambridge.
-
-   Redistribution and use in source and binary forms, with or without
-   modification, are permitted provided that the following conditions are met:
-
-    - Redistributions of source code must retain the above copyright notice,
-      this list of conditions and the following disclaimer.
-
-    - Redistributions in binary form must reproduce the above copyright notice,
-      this list of conditions and the following disclaimer in the documentation
-      and/or other materials provided with the distribution.
-
-    - Neither the name of the University of Cambridge nor the names of any
-      contributors may be used to endorse or promote products derived from this
-      software without specific prior written permission.
-
-    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
-    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-    POSSIBILITY OF SUCH DAMAGE.
-
-Fish also contains small amounts of code under the OpenBSD license, namely a
-version of the function strlcpy, modified for use with wide character strings.
-This code is copyrighted by Todd C. Miller (1998). It also contains code from
-tmux, copyrighted by Nicholas Marriott <nicm@users.sourceforge.net> (2007), and
-made available under an identical license.
-
-  Permission to use, copy, modify, and distribute this software for any
-  purpose with or without fee is hereby granted, provided that the above
-  copyright notice and this permission notice appear in all copies.
-
-  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-Fish contains code from the glibc library, namely the wcstok function
-in fallback.c.  This code is licensed under the LGPL.
-
-On Debian systems, the complete text of the GNU Lesser General
-Public License can be found in `/usr/share/common-licenses/LGPL'.
-
-The Debian packaging is:
-
-    Copyright (C) 2005 James Vega <jamessan@jamessan.com>
-    Copyright (C) 2012 David Adam <zanchey@ucc.gu.uwa.edu.au>
-    Copyright (C) 2015 Tristan Seligmann <mithrandi@debian.org>
-
-and is licensed under the GPL version 2, see above.

debian/fish-common.doc-base

@@ -1,11 +0,0 @@
-Document: fish
-Title: Debian fish Manual
-Author: Axel Liljencrantz <axel@liljencrantz.se>
-Abstract: This guide documents fish, a shell
- geared towards interactive use.
-Section: Shells
-
-Format: HTML
-Index: /usr/share/doc/fish/index.html
-Files: /usr/share/doc/fish/*.html
-

debian/fish-common.docs

@@ -1 +0,0 @@
-README.md

debian/fish-common.install

@@ -1,2 +0,0 @@
-debian/tmp/etc
-debian/tmp/usr/share

debian/fish-common.lintian-overrides

@@ -1,4 +0,0 @@
-# These directories are intentionally empty.
-fish-common: package-contains-empty-directory usr/share/fish/vendor_completions.d/
-fish-common: package-contains-empty-directory usr/share/fish/vendor_conf.d/
-fish-common: package-contains-empty-directory usr/share/fish/vendor_functions.d/

debian/fish.install

@@ -1 +0,0 @@
-debian/tmp/usr/bin

debian/fish.postinst

@@ -1,47 +0,0 @@
-#!/bin/sh
-# postinst script for fish
-#
-# see: dh_installdeb(1)
-
-set -e
-
-# summary of how this script can be called:
-#        * <postinst> `configure' <most-recently-configured-version>
-#        * <old-postinst> `abort-upgrade' <new version>
-#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
-#          <new-version>
-#        * <postinst> `abort-remove'
-#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
-#          <failed-install-package> <version> `removing'
-#          <conflicting-package> <version>
-# for details, see http://www.debian.org/doc/debian-policy/ or
-# the debian-policy package
-
-add_shell() {
-    if ! type add-shell > /dev/null 2>&1; then
-        return
-    fi
-
-    add-shell /usr/bin/fish
-}
-
-case "$1" in
-    configure)
-        add_shell
-    ;;
-
-    abort-upgrade|abort-remove|abort-deconfigure)
-    ;;
-
-    *)
-        echo "postinst called with unknown argument \`$1'" >&2
-        exit 1
-    ;;
-esac
-
-# dh_installdeb will replace this with shell code automatically
-# generated by other debhelper scripts.
-
-#DEBHELPER#
-
-exit 0

debian/fish.postrm

@@ -1,37 +0,0 @@
-#!/bin/sh
-# postrm script for fish
-#
-# see: dh_installdeb(1)
-
-set -e
-
-# summary of how this script can be called:
-#        * <postrm> `remove'
-#        * <postrm> `purge'
-#        * <old-postrm> `upgrade' <new-version>
-#        * <new-postrm> `failed-upgrade' <old-version>
-#        * <new-postrm> `abort-install'
-#        * <new-postrm> `abort-install' <old-version>
-#        * <new-postrm> `abort-upgrade' <old-version>
-#        * <disappearer's-postrm> `disappear' <overwriter>
-#          <overwriter-version>
-# for details, see http://www.debian.org/doc/debian-policy/ or
-# the debian-policy package
-
-
-case "$1" in
-    purge|remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
-    ;;
-
-    *)
-        echo "postrm called with unknown argument \`$1'" >&2
-        exit 1
-    ;;
-esac
-
-# dh_installdeb will replace this with shell code automatically
-# generated by other debhelper scripts.
-
-#DEBHELPER#
-
-exit 0

debian/fish.prerm

@@ -1,46 +0,0 @@
-#!/bin/sh
-# prerm script for fish
-#
-# see: dh_installdeb(1)
-
-set -e
-
-# summary of how this script can be called:
-#        * <prerm> `remove'
-#        * <old-prerm> `upgrade' <new-version>
-#        * <new-prerm> `failed-upgrade' <old-version>
-#        * <conflictor's-prerm> `remove' `in-favour' <package> <new-version>
-#        * <deconfigured's-prerm> `deconfigure' `in-favour'
-#          <package-being-installed> <version> `removing'
-#          <conflicting-package> <version>
-# for details, see http://www.debian.org/doc/debian-policy/ or
-# the debian-policy package
-
-remove_shell() {
-        if ! type remove-shell > /dev/null 2>&1; then
-                return
-        fi
-
-        remove-shell /usr/bin/fish
-}
-
-case "$1" in
-    remove|deconfigure)
-        remove_shell
-    ;;
-
-    upgrade|failed-upgrade)
-    ;;
-
-    *)
-        echo "prerm called with unknown argument \`$1'" >&2
-        exit 1
-    ;;
-esac
-
-# dh_installdeb will replace this with shell code automatically
-# generated by other debhelper scripts.
-
-#DEBHELPER#
-
-exit 0

debian/menu

@@ -1,2 +0,0 @@
-?package(fish):needs="text" section="Applications/Shells"\
-  title="fish" command="/usr/bin/fish"

debian/rules

@@ -1,19 +0,0 @@
-#!/usr/bin/make -f
-# -*- makefile -*-
-
-# Uncomment this to turn on verbose mode.
-export DH_VERBOSE=1
-
-%:
-	dh $@ --with autotools-dev,autoreconf
-
-override_dh_installdocs:
-	dh_installdocs --link-doc=fish
-
-# Still needed until all platforms have debhelper 9.20151219
-# Consider transitioning https://wiki.debian.org/DebugPackage
-override_dh_strip:
-	dh_strip --dbg-package=fish-dbg
-
-# Don't run tests; they don't work until fish is installed
-override_dh_auto_test:

debian/source/format

@@ -1 +0,0 @@
-3.0 (quilt)

doc_src/FORMATTING.md

@@ -1,253 +0,0 @@
-# Formatting guide for fish docs
-
-The fish documentation has been updated to support Doxygen 1.8.7+, and while the main benefit of this change is extensive Markdown support, the addition of a fish lexicon and syntax filter, combined with semantic markup rules allows for automatic formatting enhancements across the HTML user_docs and man pages.
-
-Initially my motivation was to fix a problem with long options ([Issue #1557](https://github.com/fish-shell/fish-shell/issues/1557) on GitHub), but as I worked on fixing the issue I realised there was an opportunity to simplify, reinforce and clarify the current documentation, hopefully making further contribution easier and cleaner, while allowing the documentation examples to presented more clearly with less author effort.
-
-While the documentation is pretty robust to variations in the documentation source, adherence to the following style guide will help keep the already excellent documention in good shape moving forward.
-
-## Line breaks and wrapping
-
-Contrary to the rest of the fish source code, the documentation greatly benefits from the use of long lines and soft wrapping. It allows paragraphs to be treated as complete blocks by Doxygen, means that the semantic filter can see complete lines when deciding on how to apply syntax highlighting, and means that man pages will consistently wrap to the width of the users console in advanced pagers, such as 'most'. 
-
-## Doxygen special commands and aliases
-
-While Markdown syntax forms the basis of the documentation content, there are some exceptions that require the use of Doxygen special commands. On the whole, Doxygen commands should be avoided, especially inline word formatting such as \\c as this would allow Doxygen to make unhelpful assumptions, such as converting double dashes (\--) to n-dashes (–).
-
-### Structure: \\page, \\section and \\subsection
-
-Use of Doxygen sections markers are important, as these determine what will be eventually output as a web page, man page or included in the developer docs. 
-
-Currently the make process for the documentation is quite convoluted, but basically the HTML docs are produced from a single, compiled file, doc.h. This contains a number of \\page markers that produce the various pages used in the documentation. The format of a \\page mark is:
-
-    \page universally_unique_page_id Page title
-
-The source files that contain the page markers are currently:
-
-- __index.hdr.in__: Core documentation
-- __commands.hdr.in__: Individual commands
-- __tutorial.hdr__: Tutorial
-- __design.hdr__: Design document
-- __faq.hdr__: Frequently Asked Questions
-- __license.hdr__: Fish and 3rd party licences
-
-Unless there is a _VERY_ good reason and developer consensus, new pages should never be added.
-
-The rest of the documentation is structured using \\section and \\subsection markers. Most of the source files (listed above) contain their full content, the exception being commands, which are separated out into source text files in the doc_src directory. These files are concatenated into one file, so each one starts with a \\section declaration. The synopsis, description and examples (if present) are declared as \\subsections. The format of these marks is practically identical to the page mark.
-
-    \section universally_unique_section_id Section title
-    \subsection universally_unique_subsection_id Subsection title
-
-Each page, section and subsection id _must_ be unique across the whole of the documentation, otherwise Doxygen will issue a warning.
-
-### Semantic markup: the \\fish .. \\endfish block
-
-While Doxygen has support for \\code..\\endcode blocks with enhanced markup and syntax colouring, it only understands the core Doxygen languages: C, C++, Objective C, Java, PHP, Python, Tcl and Fortran. To enhance Fish's syntax presentation, use the special \\fish..\\endfish blocks instead.
-
-Text placed in this block will be parsed by Doxygen using the included lexicon filter (see lexicon_filter.in) as a Doxygen input filter. The filter is built during make so that it can pick up information on builtins, functions and shell commands mentioned in completions and apply markup to keywords found inside the \\fish block.
-
-Basically, preformatted plain text inside the \\fish block is fed through the filter and is returned marked up so that Doxygen aliases can convert it back to a presentable form, according to the output document type.
-
-For instance:
-
-`echo hello world`
-
-is transformed into:
-
-`@cmnd{echo} @args{hello} @args{world}`
-
-which is then transformed by Doxygen into an HTML version (`make doc`):
-
-`<span class="command">echo</span> <span class="argument">hello</span> <span class="argument">world</span>`
-
-And a man page version (`make share/man`):
-
-__echo__ hello world
-
-### Fonts
-
-In older browsers, it was easy to set the fonts used for the three basic type styles (serif, sans-serif and monospace). Modern browsers have removed these options in their respective quests for simplification, assuming the content author will provide suitable styles for the content in the site's CSS, or the end user will provide overriding styles manually. Doxygen's default styling is very simple and most users will just accept this default.
-
-I've tried to use a sensible set of fonts in the documentation's CSS based on 'good' terminal fonts and as a result the firt preference font used throughout the documentation is '[DejaVu](http://dejavu-fonts.org)'. The rationale behaind this is that while DejaVu is getting a little long in the tooth, it still provides the most complete support across serif, sans-serif and monospace styles (giving a well balanced feel and consistent [x-height](http://en.wikipedia.org/wiki/X-height)), has the widest support for extended Unicode characters and has a free, permissive licenses (though it's still incompatible with GPLv2, though arguably less so than the SIL Open Font license, though this is a moot point when using it solely in the docs).
-
-#### Fonts inside \\fish blocks and \`backticks\`
-
-As the point of these contructs is to make fish's syntax clearer to the user, it makes sense to mimic what the user will see in the console, therefore any content is formatted using the monospaced style, specifically monospaced fonts are chosen in the following order:
-
-1. __DejaVu Sans Mono__: Explained above. [[&darr;](http://dejavu-fonts.org)]
-2. __Source Code Pro__: Monospaced code font, part of Adobe's free Edge Web Fonts. [[&darr;](https://edgewebfonts.adobe.com)]
-3. __Menlo__: Apple supplied variant of DejaVu.
-4. __Ubuntu Mono__: Ubuntu Linux's default monospaced font. [[&darr;](http://font.ubuntu.com)]
-5. __Consolas__: Modern Microsoft supplied console font.
-6. __Monaco__: Apple supplied console font since 1984!
-7. __Lucida Console__: Generic mono terminal font, standard in many OS's and distros.
-8. __monospace__: Catchall style. Chooses default monospaced font, often Courier.
-9. __fixed__: As above, more often used on mobile devices.
-
-#### General Fonts
-
-1. __DejaVu Sans__: As above.[[&darr;](http://dejavu-fonts.org)]
-2. __Roboto__: Elegant Google free font and is Doxygen's default [[&darr;](http://www.google.com/fonts/specimen/Roboto)]
-3. __Lucida Grande__: Default Apple OS X content font.
-4. __Calibri__: Default Microsoft Office font (since 2007).
-5. __Verdana__: Good general font found in a lot of OSs.
-6. __Helvetica Neue__: Better spaced and balanced Helvetica/Arial variant.
-7. __Helvetica__: Standard humanist typeface found almost everywhere.
-8. __Arial__: Microsoft's Helvetica.
-9. __sans-serif__: Catchall style. Chooses default sans-serif typeface, often Helvetica.
-
-The ordering of the fonts is important as it's designed to allow the documentation to settle into a number of different identities according to the fonts available. If you have the complete DejaVu family installed, then the docs are presented using that, and if your Console is set up to use the same fonts, presentation will be completely consistent.
-
-On OS X, with nothing extra installed, the docs will default to Menlo and Lucida Grande giving a Mac feel. Under Windows, it will default to using Consolas and Calibri on recent versions, giving a modern Windows style.
-
-#### Other sources:
-
-- [Font Squirrel](http://www.fontsquirrel.com): Good source of open source font packages.
-
-### Choosing a CLI style: using a \\fish{style} block
-
-By default, when output as HTML, a \\fish block uses syntax colouring suited to the style of the documentation rather than trying to mimic the terminal. The block has a light, bordered background and a colour scheme that 'suggests' what the user would see in a console.
-
-Additional stying can be applied adding a style declaration:
-
-    \fish{additional_style [another_style...]}
-        ...
-    \endfish
-
-This will translate to classes applied to the `<div>` tag, like so:
-
-    <div class="fish additional_style another_style">
-        ...
-    </div>
-
-The various classes are defined in `doc_src/user_doc.css` and new style can be simply added
-
-The documentation currently defines a couple of additional styles:
-
-- __cli-dark__: Used in the _tutorial_ and _FAQ_ to simulate a dark background terminal, with fish's default colours (slightly tweaked for legibility in the browser).
-
-- __synopsis__: A simple colour theme helpful for displaying the logical 'summary' of a command's syntax, options and structure.
-
-## Markdown
-
-Apart from the exceptions discussed above, the rest of the documentation now supports the use of Markdown. As such the use of Doxygen special commands for HTML tags is unnecessary.
-
-There are a few exceptions and extensions to the Markdown [standard](http://daringfireball.net/projects/markdown/) that are documented in the Doxygen [documentation](http://www.stack.nl/~dimitri/doxygen/manual/markdown.html).
-
-### \`Backticks\`
-
-As is standard in Markdown and 'Github Flavoured Markdown' (GFM), backticks can be used to denote inline technical terms in the documentation, `like so`. In the documentation this will set the font to the monospaced 'console' typeface and will cause the enclosed term to stand out.
-
-However, fenced code blocks using 4 spaces or 3 backticks (\`\`\`) should be avoided as Doxygen will interpret these as \\code blocks and try to apply standard syntax colouring, which doesn't work so well for fish examples. Use `\fish..\endfish` blocks instead.
-
-### Lists
-
-Standard Markdown list rules apply, but as Doxygen will collapse white space on output, combined with the use of long lines, it's a good idea to include an extra new line between long list items to assist future editing.
-
-## Special cases
-
-The following can be used in \\fish blocks to render some fish scenarios. These are mostly used in the tutorial when an interactive situation needs to be displayed.
-
-### Custom formatting tags
-
-```html
-<u>: <u>These words are underlined.</u>
-<s>: auto<s>suggestion</s>.
-<m>: <m>Matched</m> items, such as tab completions.
-<sm>: Matched items <sm>searched</sm> for, like grep results.
-<bs>: Render the contents with a preceding backslash. Useful when presenting output.
-<error>: <error>This would be shown as an error.</error>
-<asis>: <asis>This text will not be parsed for fish markup.</asis>
-<outp>: <outp>This would be rendered as command/script output.</outp>
-{{ and }}: Required when wanting curly braces in regular expression example.
-```
-
-### Prompts and cursors
-
-```html
->_: Display a basic prompt.
-~>_: Display a prompt with a the home directory as the current working directory.
-___ (3 underscores): Display a cursor.
-```
-
-### Keyboard shortcuts: @key{} and @cursor_key{}
-
-Graphical keyboard shortcuts can be defined using the following special commands. These allow for the different text requirements across the html and man pages. The HTML uses CSS to create a keyboard style, whereas the man page would display the key as text.
-
-- `@key{lable}`
-  Displays a key with a purely textual lable, such as: 'Tab', 'Page Up', 'Page Down', 'Home', 'End', 'F1', 'F19' and so on. 
-
-- `@key{modifier,lable}`
-  Displays a keystroke requiring the use of a 'modifier' key, such as 'Control-A', 'Shift-X', 'Alt-Tab' etc.
-
-- `@key{modifier,entity,lable}`
-  Displays a keystroke using a graphical entity, such as an arrow symbol for cursor key based shortcuts.
-
-- `@cursor_key{entity,lable}`
-  A special case for cursor keys, when no modifier is needed. i.e. `@cursor_key{&uarr;,up}` for the up arrow key.
-
-Some useful Unicode/HTML5 entities:
-
-- Up arrow: `&uarr;`
-- Down arrow: `&darr;`
-- Left arrow: `&larr;`
-- Right arrow `&rarr;`
-- Shift: `&#8679;`
-- Tab: `&rarrb;`
-- Mac option: `&#8997;`
-- Mac command: `&#8984;`
-
-## Notes
-
-### Doxygen
-
-Tested on:
-- Ubuntu 14.04 with Doxygen 1.8.8, built from [GitHub source](https://github.com/doxygen/doxygen.git).
-- CentOS 6.5 with Doxygen 1.8.8, built from [GitHub source](https://github.com/doxygen/doxygen.git).
-- Mac OS X 10.9 with Homebrew install Doxygen 1.8.7 and 1.8.8. 
-
-Graphviz was also installed in all the above testing.
-
-Doxygen 1.8.6 and lower do not have the \\htmlonly[block] directive which fixes a multitude of problems in the rendering of the docs. In Doxygen 1.8.7 the list of understood HTML entities was greatly increased. I tested earlier versions and many little issues returned.
-
-As fish ships with pre-built documentation, I don't see this as an issue.
-
-### Updated Configure/Makefile
-
-- Tested on Ubuntu 14.04, CentOS 6.5 and Mac OS X 10.9.
-- Makefile has GNU/BSD sed/grep detection.
-
-### HTML output
-
-- The output HTML is HTML5 compliant, but should quickly and elegantly degrade on older browsers without losing basic structure.
-- The CSS avoids the use or browser specific extenstions (i.e. -webkit, -moz etc), using the W3C HTML5 standard instead.
-- It's been tested in Chrome 37.0 and Firefox 32.0 on Mac OS X 10.9 (+Safari 7), Windows 8.1 (+Internet Explorer 11) and Ubuntu Desktop 14.04.
-- My assumption is basically that if someone cares enough to want to install fish, they'll be keeping a browser current.
-
-### Man page output
-
-- Tested on Ubuntu 14.04, CentOS 6.5 and Mac OS X 10.9.
-- Output is substantially cleaner.
-- Tested in cat, less, more and most pagers using the following fish script:
-
-```
-function manTest --description 'Test manpage' --argument page
-    set -l pager
-    for i in $argv
-        switch $i
-            case "-l"
-                set pager -P '/usr/bin/less -is'
-            case "-m"
-                set pager -P '/usr/bin/more -s'
-            case "-c"
-                set pager -P '/bin/cat'
-        end
-    end
-    man $pager ~/Projects/OpenSource/fish-shell/share/man/man1/$page.1
-end
-
-# Assumes 'most' is the default system pager.
-# NOT PORTABLE! Paths would be need to be updated on other systems.
-```
-
-#### Author: Mark Griffiths [@GitHub](https://github.com/MarkGriffiths)

doc_src/abbr.txt

@@ -1,67 +0,0 @@
-\section abbr abbr - manage fish abbreviations
-
-\subsection abbr-synopsis Synopsis
-\fish{synopsis}
-abbr --add word phrase...
-abbr --rename word new_word
-abbr --show
-abbr --list
-abbr --erase word
-\endfish
-
-\subsection abbr-description Description
-
-`abbr` manipulates the list of abbreviations that fish will expand.
-
-Abbreviations are user-defined character sequences or words that are replaced with longer phrases after they are entered. For example, a frequently-run command such as `git checkout` can be abbreviated to `gco`. After entering `gco` and pressing @key{Space} or @key{Enter}, the full text `git checkout` will appear in the command line.
-
-Abbreviations are stored in a variable named `fish_user_abbreviations`. This is automatically created as a universal variable the first time an abbreviation is created. If you want your abbreviations to be private to a particular fish session you can put the following in your *~/.config/fish/config.fish* file before you define your first abbrevation:
-
-\fish
-if status --is-interactive
-    set -g fish_user_abbreviations
-    abbr --add first 'echo my first abbreviation'
-    abbr --add second 'echo my second abbreviation'
-    # etcetera
-end
-\endfish
-
-You can create abbreviations directly on the command line and they will be saved automatically and made visible to other fish sessions if `fish_user_abbreviations` is a universal variable. If you keep the variable as universal, `abbr --add` statements in <a href="tutorial.html#tut_startup">config.fish</a> will do nothing but slow down startup slightly.
-
-\subsection abbr-options Options
-
-The following parameters are available:
-
-- `-a WORD PHRASE` or `--add WORD PHRASE` Adds a new abbreviation, causing WORD to be expanded to PHRASE.
-
-- `-r WORD NEW_WORD` or `--rename WORD NEW_WORD` Renames an abbreviation, from WORD to NEW_WORD.
-
-- `-s` or `--show` Show all abbreviated words and their expanded phrases in a manner suitable for export and import.
-
-- `-l` or `--list` Lists all abbreviated words.
-
-- `-e WORD` or `--erase WORD` Erase the abbreviation WORD.
-
-Note: fish version 2.1 supported `-a WORD=PHRASE`. This syntax is now deprecated but will still be converted.
-
-\subsection abbr-example Examples
-
-\fish
-abbr -a gco git checkout
-\endfish
-Add a new abbreviation where `gco` will be replaced with `git checkout`.
-
-\fish
-abbr -r gco gch
-\endfish
-Renames an existing abbreviation from `gco` to `gch`.
-
-\fish
-abbr -e gco
-\endfish
-Erase the `gco` abbreviation.
-
-\fish
-ssh another_host abbr -s | source
-\endfish
-Import the abbreviations defined on another_host over SSH.

doc_src/alias.txt

@@ -1,35 +1,34 @@
 \section alias alias - create a function
 
 \subsection alias-synopsis Synopsis
-\fish{synopsis}
-alias
-alias NAME DEFINITION
-alias NAME=DEFINITION
-\endfish
+<pre>alias NAME DEFINITION
+alias NAME=DEFINITION</pre>
 
 \subsection alias-description Description
 
-`alias` is a simple wrapper for the `function` builtin, which creates a function wrapping a command. It has similar syntax to POSIX shell `alias`. For other uses, it is recommended to define a <a href='#function'>function</a>.
+\c alias is a simple wrapper for the \c function builtin.
+It exists for backwards compatibility with Posix
+shells. For other uses, it is recommended to define a <a
+href='#function'>function</a>.
 
-`fish` marks functions that have been created by `alias` by including the command used to create them in the function description. You can list `alias`-created functions by running `alias` without arguments. They must be erased using `functions -e`.
+\c fish does not keep track of which functions have been defined using
+\c alias. They must be erased using <code>functions -e</code>.
 
-- `NAME` is the name of the alias
-- `DEFINITION` is the actual command to execute. The string `$argv` will be appended.
+- NAME is the name of the alias
+- DEFINITION is the actual command to execute. The string " $argv" will be appended.
 
-You cannot create an alias to a function with the same name. Note that spaces need to be escaped in the call to `alias` just like at the command line, _even inside quoted parts_.
+You cannot create an alias to a function with the same name.
 
 \subsection alias-example Example
 
-The following code will create `rmi`, which runs `rm` with additional arguments on every invocation.
+The following code will create \c rmi, which runs \c rm with additional
+arguments on every invocation.
 
-\fish
-alias rmi="rm -i"
+<code>alias rmi "rm -i"</code>
 
-# This is equivalent to entering the following function:
-function rmi --wraps rm --description 'alias rmi=rm -i'
+This is equivalent to entering the following function:
+
+<pre>function rmi
     rm -i $argv
-end
+end</pre>
 
-# This needs to have the spaces escaped or "Chrome.app..." will be seen as an argument to "/Applications/Google":
-alias chrome='/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome banana'
-\endfish

doc_src/and.txt

@@ -1,23 +1,27 @@
 \section and and - conditionally execute a command
 
 \subsection and-synopsis Synopsis
-\fish{synopsis}
-COMMAND1; and COMMAND2
-\endfish
+<tt>COMMAND1; and COMMAND2</tt>
 
 \subsection and-description Description
 
-`and` is used to execute a command if the current exit status (as set by the previous command) is 0.
+\c and is used to execute a command if the current exit
+status (as set by the last previous command) is 0.
 
-`and` statements may be used as part of the condition in an <a href="#if">`if`</a> or <a href="#while">`while`</a> block. See the documentation for <a href="#if">`if`</a> and <a href="#while">`while`</a> for examples.
+\c and does not change the current exit status.
 
-`and` does not change the current exit status. The exit status of the last foreground command to exit can always be accessed using the <a href="index.html#variables-status">$status</a> variable.
+The exit status of the last foreground command to exit can always be
+accessed using the <a href="index.html#variables-status">$status</a>
+variable.
 
 \subsection and-example Example
 
-The following code runs the `make` command to build a program. If the build succeeds, `make`'s exit status is 0, and the program is installed. If either step fails, the exit status is 1, and `make clean` is run, which removes the files created by the build process.
+The following code runs the \c make command to build a program. If the
+build succeeds, <code>make</code>'s exit status is 0, and the program is installed. If either step fails,
+the exit status is 1, and <tt>make clean</tt> is run, which removes the files created by the.
+build process.
 
-\fish
+<pre>
 make; and make install; or make clean
-\endfish
+</pre>
 

doc_src/begin.txt

@@ -1,45 +1,49 @@
 \section begin begin - start a new block of code
 
 \subsection begin-synopsis Synopsis
-\fish{synopsis}
-begin; [COMMANDS...;] end
-\endfish
+ <tt>begin; [COMMANDS...;] end</tt>
 
 \subsection begin-description Description
 
-`begin` is used to create a new block of code.
+\c begin is used to create a new block of code.
 
-The block is unconditionally executed. `begin; ...; end` is equivalent to `if true; ...; end`.
+The block
+is unconditionally executed. <code>begin; ...; end</tt> is equivalent
+to <tt>if true; ...; end</tt>.
 
-`begin` is used to group a number of commands into a block. This allows the introduction of a new variable scope, redirection of the input or output of a set of commands as a group, or to specify precedence when using the conditional commands like `and`.
-
-`begin` does not change the current exit status.
+\c begin is used to group a number of commands into a block.
+This allows the introduction of a new variable scope, redirection of the input or
+output of a set of commands as a group, or to specify precedence when
+using the conditional commands like \c and.
 
+\c begin does not change the current exit status.
 
 \subsection begin-example Example
 
-The following code sets a number of variables inside of a block scope. Since the variables are set inside the block and have local scope, they will be automatically deleted when the block ends.
+The following code sets a number of variables inside of a block
+scope. Since the variables are set inside the block and have local
+scope, they will be automatically deleted when the block ends.
 
-\fish
+<pre>
 begin
-    set -l PIRATE Yarrr
-    ...
+	set -l PIRATE Yarrr
+	...
 end
-
+# This will not output anything, since the PIRATE variable went out
+# of scope at the end of the block
 echo $PIRATE
-# This will not output anything, since the PIRATE variable
-# went out of scope at the end of the block
-\endfish
+</pre>
 
 In the following code, all output is redirected to the file out.html.
 
-\fish
+<pre>
 begin
-    echo $xml_header
-    echo $html_header
-    if test -e $file
-        ...
-    end
-    ...
-end > out.html
-\endfish
+	echo $xml_header
+	echo $html_header
+	if test -e $file
+		...
+	end
+	...
+
+end &gt; out.html
+</pre>

doc_src/bg.txt

@@ -1,17 +1,17 @@
 \section bg bg - send jobs to background
 
 \subsection bg-synopsis Synopsis
-\fish{synopsis}
-bg [PID...]
-\endfish
+<tt>bg [PID...]</tt>
 
 \subsection bg-description Description
 
-`bg` sends <a href="index.html#syntax-job-control">jobs</a> to the background, resuming them if they are stopped. A background job is executed simultaneously with fish, and does not have access to the keyboard. If no job is specified, the last job to be used is put in the background. If PID is specified, the jobs with the specified process group IDs are put in the background.
+\c bg sends <a href="index.html#syntax-job-control">jobs</a> to the background, resuming them if they are stopped. A background job is
+executed simultaneously with fish, and does not have access to the
+keyboard. If no job is specified, the last job to be used is put in the background. If PID is specified, the jobs with the specified process group IDs are put in the background.
 
 The PID of the desired process is usually found by using <a href="index.html#expand-process">process expansion</a>.
 
-
 \subsection bg-example Example
 
-`bg %1` will put the job with job ID 1 in the background.
+<tt>bg \%1</tt> will put the job with job ID 1 in the background.
+

doc_src/bind.txt

@@ -1,160 +1,64 @@
 \section bind bind - handle fish key bindings
 
 \subsection bind-synopsis Synopsis
-\fish{synopsis}
-bind [(-M | --mode) MODE] [(-m | --sets-mode) NEW_MODE]
-     [(-k | --key)] SEQUENCE COMMAND [COMMAND...]
-bind [(-M | --mode) MODE] [(-k | --key)] SEQUENCE
-bind (-K | --key-names) [(-a | --all)]
-bind (-f | --function-names)
-bind (-e | --erase) [(-M | --mode) MODE]
-     (-a | --all | [(-k | --key)] SEQUENCE [SEQUENCE...])
-\endfish
+<tt>bind [OPTIONS] SEQUENCE COMMAND</tt>
 
 \subsection bind-description Description
 
-`bind` adds a binding for the specified key sequence to the specified command.
+<tt>bind</tt> adds a binding for the specified key sequence to the
+specified command.
 
-SEQUENCE is the character sequence to bind to. These should be written as <a href="index.html#escapes">fish escape sequences</a>. For example, because pressing the Alt key and another character sends that character prefixed with an escape character, Alt-based key bindings can be written using the `\e` escape. For example, @key{Alt,w} can be written as `\ew`. The control character can be written in much the same way using the `\c` escape, for example @key{Control,X} (^X) can be written as `\cx`. Note that Alt-based key bindings are case sensitive and Control-based key bindings are not. This is a constraint of text-based terminals, not `fish`.
+SEQUENCE is the character sequence to bind to. These should be written as
+<a href="index.html#escapes">fish escape sequences</a>. For example, because pressing
+the Alt key and another character sends that character prefixed with
+an escape character, Alt-based key bindings can be written using the
+\c \\e escape. For example, Alt-w can be written as
+<tt>\\ew</tt>. The control character can be written in much the same way
+using the \c \\c escape, for example Control-x (^X) can be written as
+<tt>\\cx</tt>. Note that Alt-based key bindings are case sensitive and
+Control-based key bindings are not. This is a constraint of text-based
+termainls, not \c fish.
 
-The default key binding can be set by specifying a `SEQUENCE` of the empty string (that is, ```''``` ). It will be used whenever no other binding matches. For most key bindings, it makes sense to use the `self-insert` function (i.e. ```bind '' self-insert```) as the default keybinding. This will insert any keystrokes not specifically bound to into the editor. Non- printable characters are ignored by the editor, so this will not result in control sequences being printable.
+The default key binding can be set by specifying a SEQUENCE of the empty
+string (that is, <code>''</code>). It will be used whenever no
+other binding matches. For most key bindings, it makes sense to use
+the \c self-insert function (i.e. <tt>bind '' self-insert</tt> as the
+default keybinding. This will insert any keystrokes not specifically
+bound to into the editor. Non-printable characters are ignored by the
+editor, so this will not result in control sequences being
+printable.
 
-If the `-k` switch is used, the name of the key (such as 'down', 'up' or 'backspace') is used instead of a sequence. The names used are the same as the corresponding curses variables, but without the 'key_' prefix. (See `terminfo(5)` for more information, or use `bind --key-names` for a list of all available named keys.)
+If the -k switch is used, the name of the key (such as down, up or
+backspace) is used instead of a sequence. The names used are the same
+as the corresponding curses variables, but without the 'key_'
+prefix. (See \c terminfo(5) for more information, or use <tt>bind
+--key-names</tt> for a list of all available named keys.)
 
-`COMMAND` can be any fish command, but it can also be one of a set of special input functions. These include functions for moving the cursor, operating on the kill-ring, performing tab completion, etc. Use `bind --function-names` for a complete list of these input functions.
+COMMAND can be any fish command, but it can also be one of a set of
+special input functions. These include functions for moving the
+cursor, operating on the kill-ring, performing tab completion,
+etc. Use 'bind --function-names' for a complete list of these input
+functions.
 
-When `COMMAND` is a shellscript command, it is a good practice to put the actual code into a <a href="#function">function</a> and simply bind to the function name. This way it becomes significantly easier to test the function while editing, and the result is usually more readable as well.
+When COMMAND is a shellscript command, it is a good practice to put
+the actual code into a <a href="#function">function</a> and simply
+bind to the function name. This way it becomes significantly easier to
+test the function while editing, and the result is usually more
+readable as well.
 
-If such a script produces output, the script needs to finish by calling `commandline -f repaint` in order to tell fish that a repaint is in order.
-
-When multiple `COMMAND`s are provided, they are all run in the specified order when the key is pressed.
-
-If no `SEQUENCE` is provided, all bindings (or just the bindings in the specified `MODE`) are printed. If `SEQUENCE` is provided without `COMMAND`, just the binding matching that sequence is printed.
-
-Key bindings are not saved between sessions by default. **Bare `bind` statements in <a href="index.html#initialization">config.fish</a> won't have any effect because it is sourced before the default keybindings are setup.** To save custom keybindings, put the `bind` statements into a function called `fish_user_key_bindings`, which will be <a href="tutorial.html#tut_autoload">autoloaded</a>.
-
-Key bindings may use "modes", which mimics Vi's modal input behavior. The default mode is "default", and every bind applies to a single mode. The mode can be viewed/changed with the `$fish_bind_mode` variable.
+Key bindings are not saved between sessions by default. To save custom
+keybindings, edit the \c fish_user_key_bindings function and insert the
+appropirate \c bind statements.
 
 The following parameters are available:
 
-- `-k` or `--key` Specify a key name, such as 'left' or 'backspace' instead of a character sequence
-
-- `-K` or `--key-names` Display a list of available key names. Specifying `-a` or `--all` includes keys that don't have a known mapping
-
-- `-f` or `--function-names` Display a list of available input functions
-
-- `-M MODE` or `--mode MODE` Specify a bind mode that the bind is used in. Defaults to "default"
-
-- `-m NEW_MODE` or `--sets-mode NEW_MODE` Change the current mode to `NEW_MODE` after this binding is executed
-
-- `-e` or `--erase` Erase the binding with the given sequence and mode instead of defining a new one. Multiple sequences can be specified with this flag. Specifying `-a` or `--all` with `-M` or `--mode` erases all binds in the given mode regardless of sequence. Specifying `-a` or `--all` without `-M` or `--mode` erases all binds in all modes regardless of sequence.
-
-- `-a` or `--all` See `--erase` and `--key-names`
-
-The following special input functions are available:
-
-- `accept-autosuggestion`, accept the current autosuggestion completely
-
-- `backward-char`, moves one character to the left
-
-- `backward-bigword`, move one whitespace-delimited word to the left
-
-- `backward-delete-char`, deletes one character of input to the left of the cursor
-
-- `backward-kill-bigword`, move the whitespace-delimited word to the left of the cursor to the killring
-
-- `backward-kill-line`, move everything from the beginning of the line to the cursor to the killring
-
-- `backward-kill-path-component`, move one path component to the left of the cursor (everything from the last "/" or whitespace exclusive) to the killring
-
-- `backward-kill-word`, move the word to the left of the cursor to the killring
-
-- `backward-word`, move one word to the left
-
-- `beginning-of-buffer`, moves to the beginning of the buffer, i.e. the start of the first line
-
-- `beginning-of-history`, move to the beginning of the history
-
-- `beginning-of-line`, move to the beginning of the line
-
-- `begin-selection`, start selecting text
-
-- `capitalize-word`, make the current word begin with a capital letter
-
-- `complete`, guess the remainder of the current token
-
-- `complete-and-search`, invoke the searchable pager on completion options (for convenience, this also moves backwards in the completion pager)
-
-- `delete-char`, delete one character to the right of the cursor
-
-- `downcase-word`, make the current word lowercase
-
-- `end-of-buffer`, moves to the end of the buffer, i.e. the end of the first line
-
-- `end-of-history`, move to the end of the history
-
-- `end-of-line`, move to the end of the line
-
-- `end-selection`, end selecting text
-
-- `forward-bigword`, move one whitespace-delimited word to the right
-
-- `forward-char`, move one character to the right
-
-- `forward-word`, move one word to the right
-
-- `history-search-backward`, search the history for the previous match
-
-- `history-search-forward`, search the history for the next match
-
-- `kill-bigword`, move the next whitespace-delimited word to the killring
-
-- `kill-line`, move everything from the cursor to the end of the line to the killring
-
-- `kill-selection`, move the selected text to the killring
-
-- `kill-whole-line`, move the line to the killring
-
-- `kill-word`, move the next word to the killring
-
-- `suppress-autosuggestion`, remove the current autosuggestion
-
-- `swap-selection-start-stop`, go to the other end of the highlighted text without changing the selection
-
-- `transpose-chars`,  transpose two characters to the left of the cursor
-
-- `transpose-words`, transpose two words to the left of the cursor
-
-- `upcase-word`, make the current word uppercase
-
-- `yank`, insert the latest entry of the killring into the buffer
-
-- `yank-pop`, rotate to the previous entry of the killring
-
+- <tt>-k</tt> or <tt>--key</tt> Specify a key name, such as 'left' or 'backspace' instead of a character sequence
+- <tt>-K</tt> or <tt>--key-names</tt> Display a list of available key names
+- <tt>-f</tt> or <tt>--function-names</tt> Display a list of available input functions
 
 \subsection bind-example Examples
 
-\fish
-bind <asis>\\cd</asis> 'exit'
-\endfish
-Causes `fish` to exit when @key{Control,D} is pressed.
+<tt>bind \\cd 'exit'</tt> causes \c fish to exit when Control-d is pressed.
 
-\fish
-bind -k ppage history-search-backward
-\endfish
-Performs a history search when the @key{Page Up} key is pressed.
+<tt>bind -k ppage history-search-backward</tt> performs a history search when the Page Up key is pressed.
 
-\fish
-set -g fish_key_bindings fish_vi_key_bindings
-bind -M insert \\cc kill-whole-line force-repaint
-\endfish
-Turns on Vi key bindings and rebinds @key{Control,C} to clear the input line.
-
-
-\subsection special-case-escape Special Case: The escape Character
-
-The escape key can be used standalone, for example, to switch from insertion mode to normal mode when using Vi keybindings. Escape may also be used as a "meta" key, to indicate the start of an escape sequence, such as function or arrow keys. Custom bindings can also be defined that begin with an escape character.
-
-fish waits for a period after receiving the escape character, to determine whether it is standalone or part of an escape sequence. While waiting, additional key presses make the escape key behave as a meta key. If no other key presses come in, it is handled as a standalone escape. The waiting period is set to 300 milliseconds (0.3 seconds) in the default key bindings and 10 milliseconds in the vi key bindings. It can be configured by setting the `fish_escape_delay_ms` variable to a value between 10 and 5000 ms. It is recommended that this be a universal variable that you set once from an interactive session.
-
-Note: fish 2.2.0 and earlier used a default of 10 milliseconds, and provided no way to configure it. That effectively made it impossible to use escape as a meta key.

doc_src/block.txt

@@ -1,41 +1,40 @@
 \section block block - temporarily block delivery of events
 
 \subsection block-synopsis Synopsis
-\fish{synopsis}
-block [OPTIONS...]
-\endfish
+ <tt>block [OPTIONS...]</tt>
 
 \subsection block-description Description
 
-`block` prevents events triggered by `fish` or the <a href="commands.html#emit">`emit`</a> command from being delivered and acted upon while the block is in place.
+\c block prevents events triggered by \c fish or the
+<a href="commands.html#emit"><code>emit</code></a> command from
+being delivered and acted upon while the block is in place.
 
-In functions, `block` can be useful while performing work that should not be interrupted by the shell.
+In functions, \c block can be useful while performing work that
+should not be interrupted by the shell.
 
-The block can be removed. Any events which triggered while the block was in place will then be delivered.
+The block can be removed. Any events which triggered while the
+block was in place will then be delivered.
 
-Event blocks should not be confused with code blocks, which are created with `begin`, `if`, `while` or `for`
+Event blocks should not be confused with code blocks, which are created
+with <code>begin</code>, <code>if</code>, <code>while</code> or
+<code>for</code>
 
 The following parameters are available:
 
-- `-l` or `--local` Release the block automatically at the end of the current innermost code block scope
-
-- `-g` or `--global` Never automatically release the lock
-
-- `-e` or `--erase` Release global block
-
+- <tt>-l</tt> or <tt>--local</tt> Release the block automatically at the end of the current innermost code block scope
+- <tt>-g</tt> or <tt>--global</tt> Never automatically release the lock
+- <tt>-e</tt> or <tt>--erase</tt> Release global block
 
 \subsection block-example Example
 
-\fish
+<pre>
 # Create a function that listens for events
 function --on-event foo foo; echo 'foo fired'; end
-
 # Block the delivery of events
 block -g
-
 emit foo
 # No output will be produced
-
 block -e
 # 'foo fired' will now be printed
-\endfish
+</pre>
+

doc_src/break.txt

@@ -1,25 +1,22 @@
 \section break break - stop the current inner loop
 
 \subsection break-synopsis Synopsis
-\fish{synopsis}
-LOOP_CONSTRUCT; [COMMANDS...] break; [COMMANDS...] end
-\endfish
+ <tt>LOOP_CONSTRUCT; [COMMANDS...] break; [COMMANDS...] end</tt>
 
 \subsection break-description Description
 
-`break` halts a currently running loop, such as a <a href="#for">for</a> loop or a <a href="#while">while</a> loop. It is usually added inside of a conditional block such as an <a href="#if">if</a> statement or a <a href="#switch">switch</a> statement.
-
-There are no parameters for `break`.
+\c break halts a currently running loop, such as a <a href="#for">for</a> loop or a <a href="#while">while</a> loop. It is usually added inside of a conditional block such as an <a href="#if">if</a> statement or a <a href="#switch">switch</a> statement.
 
+There are no parameters for <code>break</code>.
 
 \subsection break-example Example
 The following code searches all .c files for "smurf", and halts at the first occurrence.
 
-\fish
+<pre>
 for i in *.c
     if grep smurf $i
         echo Smurfs are present in $i
         break
     end
 end
-\endfish
+</pre>

doc_src/breakpoint.txt

@@ -1,14 +1,14 @@
 \section breakpoint breakpoint - Launch debug mode
 
 \subsection breakpoint-synopsis Synopsis
-\fish{synopsis}
-breakpoint
-\endfish
+ <tt>breakpoint</tt>
 
 \subsection breakpoint-description Description
 
-`breakpoint` is used to halt a running script and launch an interactive debugging prompt.
+\c breakpoint is used to halt a running script and launch
+an interactive debugging prompt.
 
-For more details, see <a href="index.html#debugging">Debugging fish scripts</a> in the `fish` manual.
+For more details, see <a href="index.html#debugging">Debugging fish
+scripts</a> in the \c fish manual.
 
-There are no parameters for `breakpoint`.
+There are no parameters for <code>breakpoint</code>.

doc_src/builtin.txt

@@ -1,22 +1,16 @@
 \section builtin builtin - run a builtin command
 
 \subsection builtin-synopsis Synopsis
-\fish{synopsis}
-builtin BUILTINNAME [OPTIONS...]
-\endfish
+ <tt>builtin BUILTINNAME [OPTIONS...]</tt>
 
 \subsection builtin-description Description
 
-`builtin` forces the shell to use a builtin command, rather than a function or program.
+\c builtin forces the shell to use a builtin command, rather than a function or program.
 
 The following parameters are available:
 
-- `-n` or `--names` List the names of all defined builtins
-
+- <tt>-n</tt> or <tt>--names</tt> List the names of all defined builtins
 
 \subsection builtin-example Example
 
-\fish
-builtin jobs
-# executes the jobs builtin, even if a function named jobs exists
-\endfish
+<tt>builtin jobs</tt> executes the jobs builtin, even if a function named jobs exists.

doc_src/case.txt

@@ -1,27 +1,35 @@
 \section case case - conditionally execute a block of commands
 
 \subsection case-synopsis Synopsis
-\fish{synopsis}
-switch VALUE; [case [WILDCARD...]; [COMMANDS...]; ...] end
-\endfish
+<tt>switch VALUE; [case [WILDCARD...]; [COMMANDS...]; ...] end</tt>
 
 \subsection case-description Description
 
-`switch` performs one of several blocks of commands, depending on whether a specified value equals one of several wildcarded values. `case` is used together with the `switch` statement in order to determine which block should be executed.
+\c switch performs one of several blocks of commands, depending on whether
+a specified value equals one of several wildcarded values. \c case is used
+together with the \c switch statement in order to determine which block should
+be executed.
 
-Each `case` command is given one or more parameters. The first `case` command with a parameter that matches the string specified in the switch command will be evaluated. `case` parameters may contain wildcards. These need to be escaped or quoted in order to avoid regular wildcard expansion using filenames.
+Each \c case command is given one or more parameters. The first \c case
+command with a parameter that matches the string specified in the
+switch command will be evaluated. \c case parameters may contain
+wildcards. These need to be escaped or quoted in order to avoid
+regular wildcard expansion using filenames.
 
-Note that fish does not fall through on case statements. Only the first matching case is executed.
-
-Note that command substitutions in a case statement will be evaluated even if its body is not taken. All substitutions, including command substitutions, must be performed before the value can be compared against the parameter.
+Note that fish does not fall through on case statements. Only the
+first matching case is executed.
 
+Note that command substitutions in a case statement will be
+evaluated even if its body is not taken. All substitutions, including
+command substitutions, must be performed before the value can be compared
+against the parameter.
 
 \subsection case-example Example
 
 If the variable \$animal contains the name of an animal, the following
 code would attempt to classify it:
 
-\fish
+<pre>
 switch $animal
     case cat
         echo evil
@@ -35,8 +43,8 @@ switch $animal
     case '*'
         echo I have no idea what a $animal is
 end
-\endfish
+</pre>
 
-If the above code was run with `$animal` set to `whale`, the output
-would be `mammal`.
+If the above code was run with \c \$animal set to \c whale, the output
+would be \c mammal.
 

doc_src/cd.txt

@@ -1,27 +1,24 @@
 \section cd cd - change directory
 
 \subsection cd-synopsis Synopsis
-\fish{synopsis}
-cd [DIRECTORY]
-\endfish
+<tt>cd [DIRECTORY]</tt>
 
 \subsection cd-description Description
-`cd` changes the current working directory.
+\c cd changes the current working directory.
 
-If `DIRECTORY` is supplied, it will become the new directory. If no parameter is given, the contents of the `HOME` environment variable will be used.
+If \c DIRECTORY is supplied, it will become the new directory. If no parameter
+is given, the contents of the \c HOME environment variable will be used.
 
-If `DIRECTORY` is a relative path, the paths found in the `CDPATH` environment variable array will be tried as prefixes for the specified path.
+If \c DIRECTORY is a relative path, the paths found in the
+\c CDPATH environment variable array will be tried as prefixes for the specified
+path.
 
-Note that the shell will attempt to change directory without requiring `cd` if the name of a directory is provided (starting with `.`, `/` or `~`, or ending with `/`).
-
-Fish also ships a wrapper function around the builtin `cd` that understands `cd -` as changing to the previous directory. See also <a href="commands.html#prevd">`prevd`</a>. This wrapper function maintains a history of the 25 most recently visited directories in the `$dirprev` and `$dirnext` global variables.
+Note that the shell will attempt to change directory without requiring \c cd
+if the name of a directory is provided (starting with '.', '/' or '~').
 
 \subsection cd-example Examples
 
-\fish
-cd
-# changes the working directory to your home directory.
+\c cd changes the working directory to your home directory.
 
-cd /usr/src/fish-shell
-# changes the working directory to /usr/src/fish-shell
-\endfish
+<code>cd /usr/src/fish-shell</code> changes the working directory to
+<code>/usr/src/fish-shell</code>.

doc_src/command.txt

@@ -1,24 +1,12 @@
 \section command command - run a program
 
 \subsection command-synopsis Synopsis
-\fish{synopsis}
-command [OPTIONS] COMMANDNAME [ARGS...]
-\endfish
+<tt>command COMMANDNAME [OPTIONS...]</tt>
 
 \subsection command-description Description
 
-`command` forces the shell to execute the program `COMMANDNAME` and ignore any functions or builtins with the same name.
+\c command forces the shell to execute the program \c COMMANDNAME and ignore any functions or builtins with the same name.
 
-The following options are available:
+\subsection command-example Example
 
-- `-s` or `--search` returns the name of the disk file that would be executed, or nothing if no file with the specified name could be found in the `$PATH`.
-
-With the `-s` option, `command` treats every argument as a separate command to look up and sets the exit status to 0 if any of the specified commands were found, or 1 if no commands could be found. Additionally passing a `-q` or `--quiet` option prevents any paths from being printed, like the `type -q`, for testing only the exit status.
-
-For basic compatibility with POSIX `command`, the `-v` flag is recognized as an alias for `-s`.
-
-\subsection command-example Examples
-
-`command ls` causes fish to execute the `ls` program, even if an `ls` function exists.
-
-`command -s ls` returns the path to the `ls` program.
+<tt>command ls</tt> causes fish to execute the \c ls program, even if an 'ls' function exists.

doc_src/commandline.txt

@@ -1,80 +1,63 @@
 \section commandline commandline - set or get the current command line buffer
 
 \subsection commandline-synopsis Synopsis
-\fish{synopsis}
-commandline [OPTIONS] [CMD]
-\endfish
+<tt>commandline [OPTIONS] [CMD]</tt>
 
 \subsection commandline-description Description
 
-`commandline` can be used to set or get the current contents of the command line buffer.
+\c commandline can be used to set or get the current contents of the command
+line buffer.
 
-With no parameters, `commandline` returns the current value of the command line.
+With no parameters, \c commandline returns the current value of the command
+line.
 
-With `CMD` specified, the command line buffer is erased and replaced with the contents of `CMD`.
+With \c CMD specified, the command line buffer is erased and replaced with
+the contents of \c CMD.
 
 The following options are available:
 
-- `-C` or `--cursor` set or get the current cursor position, not the contents of the buffer. If no argument is given, the current cursor position is printed, otherwise the argument is interpreted as the new cursor position.
+- \c -C or \c --cursor set or get the current cursor position, not
+  the contents of the buffer. If no argument is given, the current
+  cursor position is printed, otherwise the argument is interpreted
+  as the new cursor position.
+- \c -f or \c --function inject readline functions into the
+  reader. This option cannot be combined with any other option. It
+  will cause any additional arguments to be interpreted as readline
+  functions, and these functions will be injected into the reader, so
+  that they will be returned to the reader before any additional
+  actual key presses are read.
 
-- `-f` or `--function` inject readline functions into the reader. This option cannot be combined with any other option. It will cause any additional arguments to be interpreted as readline functions, and these functions will be injected into the reader, so that they will be returned to the reader before any additional actual key presses are read.
+The following options change the way \c commandline updates the
+command line buffer:
 
-The following options change the way `commandline` updates the command line buffer:
+- \c -a or \c --append do not remove the current commandline, append
+  the specified string at the end of it
+- \c -i or \c --insert do not remove the current commandline, insert
+  the specified string at the current cursor position
+- \c -r or \c --replace remove the current commandline and replace it
+  with the specified string (default)
 
-- `-a` or `--append` do not remove the current commandline, append the specified string at the end of it
+The following options change what part of the commandline is printed
+or updated:
 
-- `-i` or `--insert` do not remove the current commandline, insert the specified string at the current cursor position
+- \c -b or \c --current-buffer select the entire buffer (default)
+- \c -j or \c --current-job select the current job
+- \c -p or \c --current-process select the current process
+- \c -t or \c --current-token select the current token.
 
-- `-r` or `--replace` remove the current commandline and replace it with the specified string (default)
+The following options change the way \c commandline prints the current
+commandline buffer:
 
-The following options change what part of the commandline is printed or updated:
+- \c -c or \c --cut-at-cursor only print selection up until the
+  current cursor position
+- \c -o or \c --tokenize tokenize the selection and print one string-type token per line
 
-- `-b` or `--current-buffer` select the entire buffer (default)
-
-- `-j` or `--current-job` select the current job
-
-- `-p` or `--current-process` select the current process
-
-- `-t` or `--current-token` select the current token.
-
-The following options change the way `commandline` prints the current commandline buffer:
-
-- `-c` or `--cut-at-cursor` only print selection up until the current cursor position
-
-- `-o` or `--tokenize` tokenize the selection and print one string-type token per line
-
-If `commandline` is called during a call to complete a given string using `complete -C STRING`, `commandline` will consider the specified string to be the current contents of the command line.
-
-The following options output metadata about the commandline state:
-
-- `-L` or `--line` print the line that the cursor is on, with the topmost line starting at 1
-
-- `-S` or `--search-mode` evaluates to true if the commandline is performing a history search
-
-- `-P` or `--paging-mode` evaluates to true if the commandline is showing pager contents, such as tab completions
 
+If \c commandline is called during a call to complete a given string
+using <code>complete -C STRING</code>, \c commandline will consider the
+specified string to be the current contents of the command line.
 
 \subsection commandline-example Example
 
-`commandline -j $history[3]` replaces the job under the cursor with the third item from the command line history.
-
-If the commandline contains
-\fish
->_ echo $fl___ounder >&2 | less; and echo $catfish
-\endfish
-
-(with the cursor on the "o" of "flounder")
-
-Then the following invocations behave like this:
-\fish
->_ commandline -t
-$flounder
->_ commandline -ct
-$fl
->_ commandline -b # or just commandline
-echo $flounder >&2 | less; and echo $catfish
->_ commandline -p
-echo $flounder >&2
->_ commandline -j
-echo $flounder >&2 | less
-\endfish
+<tt>commandline -j $history[3]</tt> replaces the job under the cursor with the
+third item from the command line history.

doc_src/commands.hdr.in

@@ -1,38 +1,6 @@
-/**
-\page commands Commands
-\htmlonly[block]
-<div class="fish_left_bar">
-<div class="logo"></div>
-<div class="menu commands_menu">
-\endhtmlonly
-@command_list_toc@
-
-\htmlonly[block]
-</div>
-</div>
-<div class="commands fish_right_bar">
-<h1 class="interior_title">Command reference</h1>
-\endhtmlonly
-`fish` ships with a large number of builtin commands, shellscript functions and external commands. These are all described below.
-
-Almost all fish commands respond to the `-h` or `--help` options to display their relevant help, also accessible using the `help` and `man` commands, like so:
-
-\fish
-echo -h
-echo --help
-# Prints help to the terminal window
-
-man echo
-# Displays the man page in the system pager
-# (normally 'less', 'more' or 'most').
-
-help echo
-# Open a web browser to show the relevant documentation
-\endfish
+/** \page commands Commands, functions and builtins bundled with fish
+Fish ships with a large number of builtin commands, shellscript functions and external commands. These are all described below.
 
 @command_list@
 
-\htmlonly[block]
-</div>
-\endhtmlonly
 */

doc_src/complete.txt

@@ -1,21 +1,7 @@
 \section complete complete - edit command specific tab-completions
 
 \subsection complete-synopsis Synopsis
-\fish{synopsis}
-complete ( -c | --command | -p | --path ) COMMAND
-        [( -c | --command | -p | --path ) COMMAND]...
-        [( -e | --erase )]
-        [( -s | --short-option ) SHORT_OPTION]...
-        [( -l | --long-option | -o | --old-option ) LONG_OPTION]...
-        [( -a | --arguments ) OPTION_ARGUMENTS]
-        [( -f | --no-files )]
-        [( -r | --require-parameter )]
-        [( -x | --exclusive )]
-        [( -w | --wraps ) WRAPPED_COMMAND]...
-        [( -n | --condition ) CONDITION]
-        [( -d | --description ) DESCRIPTION]
-complete ( -C[STRING] | --do-complete[=STRING] )
-\endfish
+<tt>complete (-c|--command|-p|--path) COMMAND [(-s|--short-option) SHORT_OPTION] [(-l|--long-option|-o|--old-option) LONG_OPTION [(-a||--arguments) OPTION_ARGUMENTS] [(-d|--description) DESCRIPTION] </tt>
 
 \subsection complete-description Description
 
@@ -23,106 +9,69 @@ For an introduction to specifying completions, see <a
 href='index.html#completion-own'>Writing your own completions</a> in
 the fish manual.
 
-- `COMMAND` is the name of the command for which to add a completion.
+- <tt>COMMAND</tt> is the name of the command for which to add a completion
+- <tt>SHORT_OPTION</tt> is a one character option for the command
+- <tt>LONG_OPTION</tt> is a multi character option for the command
+- <tt>OPTION_ARGUMENTS</tt> is parameter containing a space-separated list of possible option-arguments, which may contain subshells
+- <tt>DESCRIPTION</tt> is a description of what the option and/or option arguments do
+- <tt>-C STRING</tt> or <tt>--do-complete=STRING</tt> makes complete try to find all possible completions for the specified string
+- <tt>-e</tt> or <tt>--erase</tt> implies that the specified completion should be deleted
+- <tt>-f</tt> or <tt>--no-files</tt> specifies that the option specified by this completion may not be followed by a filename
+- <tt>-n</tt> or <tt>--condition</tt> specifies a shell command that must return 0 if the completion is to be used. This makes it possible to specify completions that should only be used in some cases.
+- <tt>-o</tt> or <tt>--old-option</tt> implies that the command uses old long style options with only one dash
+- <tt>-p</tt> or <tt>--path</tt> implies that the string COMMAND is the full path of the command
+- <tt>-r</tt> or <tt>--require-parameter</tt> specifies that the option specified by this completion always must have an option argument, i.e. may not be followed by another option
+- <tt>-u</tt> or <tt>--unauthoritative</tt> implies that there may be more options than the ones specified, and that fish should not assume that options not listed are spelling errors
+- <tt>-A</tt> or <tt>--authoritative</tt> implies that there may be no more options than the ones specified, and that fish should assume that options not listed are spelling errors
+- <tt>-x</tt> or <tt>--exclusive</tt> implies both <tt>-r</tt> and <tt>-f</tt>
 
-- `SHORT_OPTION` is a one character option for the command.
+Command specific tab-completions in \c fish are based on the notion
+of options and arguments. An option is a parameter which begins with a
+hyphen, such as '-h', '-help' or '--help'. Arguments are parameters
+that do not begin with a hyphen. Fish recognizes three styles of
+options, the same styles as the GNU version of the getopt
+library. These styles are:
 
-- `LONG_OPTION` is a multi character option for the command.
+- Short options, like '-a'. Short options are a single character long, are preceded by a single hyphen and may be grouped together (like '-la', which is equivalent to '-l -a'). Option arguments may be specified in the following parameter ('-w 32') or by appending the option with the value ('-w32').
+- Old style long options, like '-Wall'. Old style long options can be more than one character long, are preceded by a single hyphen and may not be grouped together. Option arguments are specified in the following parameter ('-ao null').
+- GNU style long options, like '--colors'. GNU style long options can be more than one character long, are preceded by two hyphens, and may not be grouped together. Option arguments may be specified in the following parameter ('--quoting-style shell') or by appending the option with a '=' and the value ('--quoting-style=shell'). GNU style long options may be abbreviated so long as the abbreviation is unique ('--h' is equivalent to '--help' if help is the only long option beginning with an 'h').
 
-- `OPTION_ARGUMENTS` is parameter containing a space-separated list of possible option-arguments, which may contain command substitutions.
-
-- `DESCRIPTION` is a description of what the option and/or option arguments do.
-
-- `-c COMMAND` or `--command COMMAND` specifies that `COMMAND` is the name of the command.
-
-- `-p COMMAND` or `--path COMMAND` specifies that `COMMAND` is the absolute path of the program (optionally containing wildcards).
-
-- `-e` or `--erase` deletes the specified completion.
-
-- `-s SHORT_OPTION` or `--short-option=SHORT_OPTION` adds a short option to the completions list.
-
-- `-l LONG_OPTION` or `--long-option=LONG_OPTION` adds a GNU style long option to the completions list.
-
-- `-o LONG_OPTION` or `--old-option=LONG_OPTION` adds an old style long option to the completions list (See below for details).
-
-- `-a OPTION_ARGUMENTS` or `--arguments=OPTION_ARGUMENTS` adds the specified option arguments to the completions list.
-
-- `-f` or `--no-files` specifies that the options specified by this completion may not be followed by a filename.
-
-- `-r` or `--require-parameter` specifies that the options specified by this completion always must have an option argument, i.e. may not be followed by another option.
-
-- `-x` or `--exclusive` implies both `-r` and `-f`.
-
-- `-w WRAPPED_COMMAND` or `--wraps=WRAPPED_COMMAND` causes the specified command to inherit completions from the wrapped command (See below for details).
-
-- `-n` or `--condition` specifies a shell command that must return 0 if the completion is to be used. This makes it possible to specify completions that should only be used in some cases.
-
-- `-CSTRING` or `--do-complete=STRING` makes complete try to find all possible completions for the specified string.
-
-- `-C` or `--do-complete` with no argument makes complete try to find all possible completions for the current command line buffer. If the shell is not in interactive mode, an error is returned.
-
-- `-A` and `--authoritative` no longer do anything and are silently ignored.
-
-- `-u` and `--unauthoritative` no longer do anything and are silently ignored.
-
-Command specific tab-completions in `fish` are based on the notion of options and arguments. An option is a parameter which begins with a hyphen, such as '`-h`', '`-help`' or '`--help`'. Arguments are parameters that do not begin with a hyphen. Fish recognizes three styles of options, the same styles as the GNU version of the getopt library. These styles are:
-
-- Short options, like '`-a`'. Short options are a single character long, are preceded by a single hyphen and may be grouped together (like '`-la`', which is equivalent to '`-l -a`'). Option arguments may be specified in the following parameter ('`-w 32`') or by appending the option with the value ('`-w32`').
-
-- Old style long options, like '`-Wall`'. Old style long options can be more than one character long, are preceded by a single hyphen and may not be grouped together. Option arguments are specified in the following parameter ('`-ao null`').
-
-- GNU style long options, like '`--colors`'. GNU style long options can be more than one character long, are preceded by two hyphens, and may not be grouped together. Option arguments may be specified in the following parameter ('`--quoting-style shell`') or by appending the option with a '`=`' and the value ('`--quoting-style=shell`'). GNU style long options may be abbreviated so long as the abbreviation is unique ('`--h`') is equivalent to '`--help`' if help is the only long option beginning with an 'h').
-
-The options for specifying command name and command path may be used multiple times to define the same completions for multiple commands.
-
-The options for specifying command switches and wrapped commands may be used multiple times to define multiple completions for the command(s) in a single call.
-
-Invoking `complete` multiple times for the same command adds the new definitions on top of any existing completions defined for the command.
-
-When `-a` or `--arguments` is specified in conjunction with long, short, or old style options, the specified arguments are only used as completions when attempting to complete an argument for any of the specified options. If `-a` or `--arguments` is specified without any long, short, or old style options, the specified arguments are used when completing any argument to the command (except when completing an option argument that was specified with `-r` or `--require-parameter`).
-
-Command substitutions found in `OPTION_ARGUMENTS` are not expected to return a space-separated list of arguments. Instead they must return a newline-separated list of arguments, and each argument may optionally have a tab character followed by the argument description. Any description provided in this way overrides a description given with `-d` or `--description`.
-
-The `-w` or `--wraps` options causes the specified command to inherit completions from another command. The inheriting command is said to "wrap" the inherited command. The wrapping command may have its own completions in addition to inherited ones. A command may wrap multiple commands, and wrapping is transitive: if A wraps B, and B wraps C, then A automatically inherits all of C's completions. Wrapping can be removed using the `-e` or `--erase` options. Note that wrapping only works for completions specified with `-c` or `--command` and are ignored when specifying completions with `-p` or `--path`.
-
-When erasing completions, it is possible to either erase all completions for a specific command by specifying `complete -c COMMAND -e`, or by specifying a specific completion option to delete by specifying either a long, short or old style option.
+The options for specifying command name, command path, or command
+switches may all be used multiple times to specify multiple commands
+which have the same completion or multiple switches accepted by a
+command.
 
+When erasing completions, it is possible to either erase all
+completions for a specific command by specifying <tt>complete -e -c
+COMMAND</tt>, or by specifying a specific completion option to delete
+by specifying either a long, short or old style option.
 
 \subsection complete-example Example
 
-The short style option `-o` for the `gcc` command requires that a file follows it.  This can be done using writing:
+The short style option <tt>-o</tt> for the \c gcc command requires
+that a file follows it.  This can be done using writing <tt>complete
+-c gcc -s o -r</tt>.
 
-\fish
-complete -c gcc -s o -r
-\endfish
+The short style option <tt>-d</tt> for the \c grep command requires
+that one of the strings 'read', 'skip' or 'recurse' is used.  This can
+be specified writing <tt>complete -c grep -s d -x -a "read skip
+recurse"</tt>.
 
-The short style option `-d` for the `grep` command requires that one of the strings '`read`', '`skip`' or '`recurse`' is used.  This can be specified writing:
+The \c su command takes any username as an argument. Usernames are
+given as the first colon-separated field in the file /etc/passwd. This
+can be specified as: <tt>complete -x -c su -d "Username" -a "(cat
+/etc/passwd|cut -d : -f 1)" </tt>.
 
-\fish
-complete -c grep -s d -x -a "read skip recurse"
-\endfish
-
-The `su` command takes any username as an argument. Usernames are given as the first colon-separated field in the file /etc/passwd. This can be specified as:
-
-\fish
-complete -x -c su -d "Username" -a "(cat /etc/passwd | cut -d : -f 1)"
-\endfish
-
-The `rpm` command has several different modes. If the `-e` or `--erase` flag has been specified, `rpm` should delete one or more packages, in which case several switches related to deleting packages are valid, like the `nodeps` switch.
+The \c rpm command has several different modes. If the \c -e or \c
+--erase flag has been specified, \c rpm should delete one or more
+packages, in which case several switches related to deleting packages
+are valid, like the \c nodeps switch.
 
 This can be written as:
 
-\fish
-complete -c rpm -n "__fish_contains_opt -s e erase" -l nodeps -d "Don't check dependencies"
-\endfish
+<tt>complete -c rpm -n "__fish_contains_opt -s e erase" -l nodeps -d
+"Don't check dependencies"</tt>
 
-where `__fish_contains_opt` is a function that checks the command line buffer for the presence of a specified set of options.
-
-To implement an alias, use the `-w` or `--wraps` option:
-
-\fish
-complete -c hub -w git
-\endfish
-
-Now hub inherits all of the completions from git. Note this can also be specified in a function declaration.
+where \c __fish_contains_opt is a function that checks the commandline
+buffer for the presence of a specified set of options.
 

doc_src/contains.txt

@@ -1,38 +1,26 @@
 \section contains contains - test if a word is present in a list
 
 \subsection contains-synopsis Synopsis
-\fish{synopsis}
-contains [OPTIONS] KEY [VALUES...]
-\endfish
+<code>contains [OPTIONS] KEY [VALUES...]</code>
 
 \subsection contains-description Description
 
-`contains` tests whether the set `VALUES` contains the string `KEY`. If so, `contains` exits with status 0; if not, it exits with status 1.
+\c contains tests whether the set \c VALUES contains the string
+<code>KEY</code>. If so, \c contains exits with status 0; if not, it exits
+with status 1.
 
 The following options are available:
 
-- `-i` or `--index` print the word index
-
-Note that, like GNU tools, `contains` interprets all arguments starting with a `-` as options to contains, until it reaches an argument that is `--` (two dashes). See the examples below.
+- \c -i or \c --index print the word index
+- \c -h or \c --help display this message
 
 \subsection contains-example Example
-
-\fish
+<pre>
 for i in ~/bin /usr/local/bin
-    if not contains $i $PATH
-        set PATH $PATH $i
-    end
+	if not contains \$i \$PATH
+		set PATH \$PATH \$i
+	end
 end
-\endfish
+</pre>
 
-The above code tests if `~/bin` and `/usr/local/bin` are in the path and adds them if not.
-
-\fish
-function hasargs
-    if contains -- -q $argv
-        echo '$argv contains a -q option'
-    end
-end
-\endfish
-
-The above code checks for `-q` in the argument list, using the `--` argument to demarcate options to `contains` from the key to search for.
+The above code tests if \c ~/bin and \c /usr/local/bin are in the path and adds them if not.

doc_src/continue.txt

@@ -1,23 +1,19 @@
 \section continue continue - skip the remainder of the current iteration of the current inner loop
 
 \subsection continue-synopsis Synopsis
-\fish{synopsis}
-LOOP_CONSTRUCT; [COMMANDS...;] continue; [COMMANDS...;] end
-\endfish
+<tt>LOOP_CONSTRUCT; [COMMANDS...;] continue; [COMMANDS...;] end</tt>
 
 \subsection continue-description Description
-
-`continue` skips the remainder of the current iteration of the current inner loop, such as a <a href="#for">for</a> loop or a <a href="#while">while</a> loop. It is usually added inside of a conditional block such as an <a href="#if">if</a> statement or a <a href="#switch">switch</a> statement.
+\c continue skips the remainder of the current iteration of the current inner loop, such as a <a href="#for">for</a> loop or a <a href="#while">while</a> loop. It is usually added inside of a conditional block such as an <a href="#if">if</a> statement or a <a href="#switch">switch</a> statement.
 
 \subsection continue-example Example
-
 The following code removes all tmp files that do not contain the word smurf.
 
-\fish
+<pre>
 for i in *.tmp
     if grep smurf $i
         continue
     end
     rm $i
 end
-\endfish
+</pre>

doc_src/count.txt

@@ -1,25 +1,29 @@
 \section count count - count the number of elements of an array
 
 \subsection count-synopsis Synopsis
-\fish{synopsis}
-count $VARIABLE
-\endfish
+ <tt>count $VARIABLE</tt>
 
 \subsection count-description Description
 
-`count` prints the number of arguments that were passed to it. This is usually used to find out how many elements an environment variable array contains.
+<tt>count</tt> prints the number of arguments that were
+passed to it. This is usually used to find out how many elements an
+environment variable array contains.
 
-`count` does not accept any options, including `-h` or `--help`.
-
-`count` exits with a non-zero exit status if no arguments were passed to it, and with zero if at least one argument was passed.
+\c count does not accept any options, including '-h'.
 
+\c count exits with a non-zero exit status if no arguments were passed
+to it, and with zero if at least one argument was passed.
 
 \subsection count-example Example
 
-\fish
+<pre>
 count $PATH
-# Returns the number of directories in the users PATH variable.
+</pre>
 
+returns the number of directories in the users PATH variable.
+
+<pre>
 count *.txt
-# Returns the number of files in the current working directory ending with the suffix '.txt'.
-\endfish
+</pre>
+
+returns the number of files in the current working directory ending with the suffix '.txt'.

doc_src/design.hdr

@@ -1,110 +1,134 @@
-/**
-\page design Design document
-\htmlonly[block]
-<div class="fish_only_bar">
-<div class="design">
-<h1 class="interior_title">Design documentation</h1>
-\endhtmlonly
+/** \page design Design document
 
 \section design-overview Overview
 
-This is a description of the design principles that have been used to design fish. The fish design has three high level goals. These are:
+This is a description of the design principles that have been used to
+design fish. The fish design has three high level goals. These are:
 
--# Everything that can be done in other shell languages should be possible to do in fish, though fish may rely on external commands in doing so.
-
--# Fish should be user friendly, but not at the expense of expressiveness. Most tradeoffs between power and ease of use can be avoided with careful design.
-
--# Whenever possible without breaking the above goals, fish should follow the Posix syntax.
-
-To achieve these high-level goals, the fish design relies on a number of more specific design principles. These are presented below, together with a rationale and a few examples for each.
+-# Everything that can be done in other shell languages should be
+possible to do in fish, though fish may rely on external commands in
+doing so.
+-# Fish should be user friendly, but not at the expense of expressiveness.
+Most tradeoffs between power and ease of use can be avoided with careful design.
+-# Whenever possible without breaking the above goals, fish should
+follow the Posix syntax.
 
+To achieve these high-level goals, the fish design relies on a number
+of more specific design principles. These are presented below,
+together with a rationale and a few examples for each.
 
 \section ortho The law of orthogonality
 
-The shell language should have a small set of orthogonal features. Any situation where two features are related but not identical, one of them should be removed, and the other should be made powerful and general enough to handle all common use cases of either feature.
+The shell language should have a small set of orthogonal features. Any
+situation where two features are related but not identical, one of them
+should be removed, and the other should be made powerful and general
+enough to handle all common use cases of either feature.
 
 Rationale:
 
-Related features make the language larger, which makes it harder to learn. It also increases the size of the source code, making the program harder to maintain and update.
+Related features make the language larger, which makes it harder to
+learn. It also increases the size of the sourcecode, making the
+program harder to maintain and update.
 
 Examples:
 
 - Here documents are too similar to using echo inside of a pipeline.
+- Subshells, command substitution and process substitution are strongly related. \c fish only supports command substitution, the others can be achieved either using a block or the psub shellscript function.
+- Having both aliases and functions is confusing, especially since both of them have limitations and problems. \c fish functions have none of the drawbacks of either syntax.
+- The many Posix quoting styles are silly, especially \$''.
 
-- Subshells, command substitution and process substitution are strongly related. `fish` only supports command substitution, the others can be achieved either using a block or the psub shellscript function.
-
-- Having both aliases and functions is confusing, especially since both of them have limitations and problems. `fish` functions have none of the drawbacks of either syntax.
-
-- The many Posix quoting styles are silly, especially $''.
-
-
-\section design-response The law of responsiveness
+\section sep The law of responsiveness
 
 The shell should attempt to remain responsive to the user at all times, even in the face of contended or unresponsive filesystems. It is only acceptable to block in response to a user initiated action, such as running a command.
 
 Rationale:
+
 Bad performance increases user-facing complexity, because it trains users to recognize and route around slow use cases. It is also incredibly frustrating.
 
 Examples:
 
 - Features like syntax highlighting and autosuggestions must perform all of their disk I/O asynchronously.
-
 - Startup should minimize forks and disk I/O, so that fish can be started even if the system is under load.
 
-\section design-configurability Configurability is the root of all evil
+\section conf Configurability is the root of all evil
 
-Every configuration option in a program is a place where the program is too stupid to figure out for itself what the user really wants, and should be considered a failure of both the program and the programmer who implemented it.
+Every configuration option in a program is a place where the program
+is too stupid to figure out for itself what the user really wants, and
+should be considered a failiure of both the program and the programmer
+who implemented it.
 
 Rationale:
-Different configuration options are a nightmare to maintain, since the number of potential bugs caused by specific configuration combinations quickly becomes an issue. Configuration options often imply assumptions about the code which change when reimplementing the code, causing issues with backwards compatibility. But mostly, configuration options should be avoided since they simply should not exist, as the program should be smart enough to do what is best, or at least a good enough approximation of it.
+
+Different configuration options are a nightmare to maintain, since the
+number of potential bugs caused by specific configuration combinations
+quickly becomes an issue. Configuration options often imply
+assumptions about the code which change when reimplementing the code,
+causing issues with backwards compatibility. But mostly, configuration
+options should be avoided since they simply should not exist, as the
+program should be smart enough to do what is best, or at least a good
+enough approximation of it.
 
 Examples:
 
 - Fish allows the user to set various syntax highlighting colors. This is needed because fish does not know what colors the terminal uses by default, which might make some things unreadable. The proper solution would be for text color preferences to be defined centrally by the user for all programs, and for the terminal emulator to send these color properties to fish.
-
 - Fish does not allow you to set the history filename, the number of history entries, different language substyles or any number of other common shell configuration options.
 
-A special note on the evils of configurability is the long list of very useful features found in some shells, that are not turned on by default. Both zsh and bash support command-specific completions, but no such completions are shipped with bash by default, and they are turned off by default in zsh. Other features that zsh supports that are disabled by default include tab-completion of strings containing wildcards, a sane completion pager and a history file.
+A special note on the evils of configurability is the long list of
+very useful features found in some shells, that are not turned on by
+default. Both zsh and bash support command specific completions, but
+no such completions are shipped with bash by default, and they are
+turned off by default in zsh. Other features that zsh support that are
+disabled by default include tab-completion of strings containing
+wildcards, a sane completion pager and a history file.
 
 \section user The law of user focus
 
-When designing a program, one should first think about how to make a intuitive and powerful program. Implementation issues should only be considered once a user interface has been designed.
+When designing a program, one should first think about how to make a
+intuitive and powerful program. Implementation issues should only be
+considered once a user interface has been designed.
 
 Rationale:
 
-This design rule is different than the others, since it describes how one should go about designing new features, not what the features should be. The problem with focusing on what can be done, and what is easy to do, is that too much of the implementation is exposed. This means that the user must know a great deal about the underlying system to be able to guess how the shell works, it also means that the language will often be rather low-level.
+This design rule is different than the others, since it describes how
+one should go about designing new features, not what the features
+should be. The problem with focusing on what can be done, and what is
+easy to do, is that to much of the implementation is exposed. This
+means that the user must know a great deal about the underlying system
+to be able to guess how the shell works, it also means that the
+language will often be rather low-level.
 
 Examples:
+
 - There should only be one type of input to the shell, lists of commands. Loops, conditionals and variable assignments are all performed through regular commands.
-
-- The differences between built-in commands and shellscript functions should be made as small as possible. Built-ins and shellscript functions should have exactly the same types of argument expansion as other commands, should be possible to use in any position in a pipeline, and should support any I/O redirection.
-
+- The differences between builtin commands, shellscript functions and builtin commands should be made as small as possible. Builtins and shellscript functions should have exactly the same types of argument expansion as other commands, should be possible to use in any position in a pipeline, and should support any io redirection.
 - Instead of forking when performing command substitution to provide a fake variable scope, all fish commands are performed from the same process, and fish instead supports true scoping.
-
-- All blocks end with the `end` built-in.
+- All blocks end with the \c end builtin.
 
 \section disc The law of discoverability
 
-A program should be designed to make its features as easy as possible to discover for the user.
+A program should be designed to make its features as
+easy as possible to discover for the user.
 
 Rationale:
-A program whose features are discoverable turns a new user into an expert in a shorter span of time, since the user will become an expert on the program simply by using it.
 
-The main benefit of a graphical program over a command-line-based program is discoverability. In a graphical program, one can discover all the common features by simply looking at the user interface and guessing what the different buttons, menus and other widgets do. The traditional way to discover features in command-line programs is through manual pages. This requires both that the user starts to use a different program, and then they remember the new information until the next time they use the same program.
+A program whose features are discoverable turns a new user into an
+expert in a shorter span of time, since the user will become an expert
+on the program simply by using it.
+
+The main benefit of a graphical program over a command line-based
+program is discoverability. In a graphical program, one can discover
+all the common features by simply looking at the user interface and
+guessing what the different buttons, menus and other widgets do. The
+traditional way to discover features in commandline programs is
+through manual pages. This requires both that the user starts to use a
+different program, and the she/he then remembers the new information
+until the next time she/he uses the same program.
 
 Examples:
+
 - Everything should be tab-completable, and every tab completion should have a description.
-
-- Every syntax error and error in a built-in command should contain an error message describing what went wrong and a relevant help page. Whenever possible, errors should be flagged red by the syntax highlighter.
-
+- Every syntax error and error in a builtin command should contain an error message describing what went wrong and a relevant help page. Whenever possible, errors should be flagged red by the syntax highlighter.
 - The help manual should be easy to read, easily available from the shell, complete and contain many examples
-
-- The language should be uniform, so that once the user understands the command/argument syntax, they will know the whole language, and be able to use tab-completion to discover new features.
-
-
-\htmlonly[block]
-</div>
-</div>
-\endhtmlonly
+- The language should be uniform, so that once the user understands the command/argument syntax, he will know the whole language, and be able to use tab-completion to discover new featues.
 
 */

doc_src/dirh.txt

@@ -1,14 +1,12 @@
 \section dirh dirh - print directory history
 
 \subsection dirh-synopsis Synopsis
-\fish{synopsis}
-dirh
-\endfish
+<tt>dirh</tt>
 
 \subsection dirh-description Description
 
-`dirh` prints the current directory history. The current position in the history is highlighted using the color defined in the `fish_color_history_current` environment variable.
+<tt>dirh</tt> prints the current directory history. The current position in the
+history is highlighted using the color defined in the
+<tt>fish_color_history_current</tt> environment variable.
 
-`dirh` does not accept any parameters.
-
-Note that the `cd` command limits directory history to the 25 most recently visited directories. The history is stored in the `$dirprev` and `$dirnext` variables.
+\c dirh does not accept any parameters.

doc_src/dirs.txt

@@ -1,15 +1,10 @@
 \section dirs dirs - print directory stack
 
 \subsection dirs-synopsis Synopsis
-\fish{synopsis}
-dirs
-dirs -c
-\endfish
+<tt>dirs</tt>
 
 \subsection dirs-description Description
+<tt>dirs</tt> prints the current directory stack, as created by the
+<code><a href="#pushd">pushd</a></code> command.
 
-`dirs` prints the current directory stack, as created by the <a href="#pushd">`pushd`</a> command.
-
-With "-c", it clears the directory stack instead.
-
-`dirs` does not accept any parameters.
+\c dirs does not accept any parameters.

doc_src/echo.txt

@@ -1,60 +1,39 @@
 \section echo echo - display a line of text
 
 \subsection echo-synopsis Synopsis
-\fish{synopsis}
-echo [OPTIONS] [STRING]
-\endfish
+ <tt>echo [STRING]</tt>
 
 \subsection echo-description Description
 
-`echo` displays a string of text.
+\c echo displays a string of text.
 
 The following options are available:
 
-- `-n`, Do not output a newline
-
-- `-s`, Do not separate arguments with spaces
-
-- `-E`, Disable interpretation of backslash escapes (default)
-
-- `-e`, Enable interpretation of backslash escapes
+- \c -n, \c Do not output a newline
+- \c -s, \c Do not separate arguments with spaces
+- \c -E, \c Disable interpretation of backslash escapes (default)
+- \c -e, \c Enable interpretation of backslash escapes
+- \c -h, \c --help Display this help
 
 \subsection echo-escapes Escape Sequences
 
-If `-e` is used, the following sequences are recognized:
+If \c -e is used, the following sequences are recognized:
 
-- `\` backslash
-
-- `\a` alert (BEL)
-
-- `\b` backspace
-
-- `\c` produce no further output
-
-- `\e` escape
-
-- `\f` form feed
-
-- `\n` new line
-
-- `\r` carriage return
-
-- `\t` horizontal tab
-
-- `\v` vertical tab
-
-- `\0NNN` byte with octal value NNN (1 to 3 digits)
-
-- `\xHH` byte with hexadecimal value HH (1 to 2 digits)
+- \c \\\\ \c backslash
+- \\a alert (BEL)
+- \\b backspace
+- \\c produce no further output
+- \\e escape
+- \\f form feed
+- \\n new line
+- \\r carriage return
+- \\t horizontal tab
+- \\v vertical tab
+- \\0NNN byte with octal value NNN (1 to 3 digits)
+- \\xHH byte with hexadecimal value HH (1 to 2 digits)
 
 \subsection echo-example Example
 
-\fish
-echo 'Hello World'
-\endfish
-Print hello world to stdout
+<tt>echo 'Hello World'</tt> Print hello world to stdout
 
-\fish
-echo -e 'Top\\nBottom'
-\endfish
-Print Top and Bottom on separate lines, using an escape sequence
+<tt>echo -e 'Top\\nBottom'</tt> Print Top and Bottom on separate lines, using an escape sequence

doc_src/else.txt

@@ -1,23 +1,21 @@
 \section else else - execute command if a condition is not met
 
 \subsection else-synopsis Synopsis
-\fish{synopsis}
-if CONDITION; COMMANDS_TRUE...; [else; COMMANDS_FALSE...;] end
-\endfish
+<tt>if CONDITION; COMMANDS_TRUE...; [else; COMMANDS_FALSE...;] end</tt>
 
 \subsection else-description Description
-
-`if` will execute the command `CONDITION`. If the condition's exit status is 0, the commands `COMMANDS_TRUE` will execute. If it is not 0 and `else` is given, `COMMANDS_FALSE` will be executed.
-
+<tt>if</tt> will execute the command \c CONDITION. If the condition's exit
+status is 0, the commands \c COMMANDS_TRUE will execute. If it is not 0 and
+<tt>else</tt> is given, \c COMMANDS_FALSE will be executed.
 
 \subsection else-example Example
 
-The following code tests whether a file `foo.txt` exists as a regular file.
+The following code tests whether a file \c foo.txt exists as a regular file.
 
-\fish
+<pre>
 if test -f foo.txt
     echo foo.txt exists
 else
     echo foo.txt does not exist
 end
-\endfish
+</pre>

doc_src/emit.txt

@@ -1,23 +1,20 @@
 \section emit emit - Emit a generic event
 
-\subsection emit-synopsis Synopsis
-\fish{synopsis}
-emit EVENT_NAME [ARGUMENTS...]
-\endfish
+\subsection block-synopsis Synopsis
+ <tt>emit EVENT_NAME [ARGUMENTS...]</tt>
 
 \subsection emit-description Description
 
-`emit` emits, or fires, an event. Events are delivered to, or caught by, special functions called event handlers. The arguments are passed to the event handlers as function arguments.
-
+\c emit emits, or fires, an event. Events are delivered to, or caught by, special functions called event handlers. The arguments are passed to the event handlers as function arguments.
 
 \subsection emit-example Example
 
-The following code first defines an event handler for the generic event named 'test_event', and then emits an event of that type.
+The following code first defines an event handler for the generic
+event named 'test_event', and then emits an event of that type.
 
-\fish
-function event_test --on-event test_event
+<pre>function event_test --on-event test_event
     echo event test: $argv
 end
 
 emit test_event something
-\endfish
+</pre>

doc_src/end.txt

@@ -1,19 +1,19 @@
 \section end end - end a block of commands.
 
 \subsection end-synopsis Synopsis
-\fish{synopsis}
+<pre>
 begin; [COMMANDS...] end
 if CONDITION; COMMANDS_TRUE...; [else; COMMANDS_FALSE...;] end
 while CONDITION; COMMANDS...; end
 for VARNAME in [VALUES...]; COMMANDS...; end
 switch VALUE; [case [WILDCARD...]; [COMMANDS...]; ...] end
-\endfish
+</pre>
 
 \subsection end-description Description
-
-`end` ends a block of commands.
+<tt>end</tt> ends a block of commands.
 
 For more information, read the
-documentation for the block constructs, such as `if`, `for` and `while`.
+documentation for the block constructs, such as \c if, \c for and \c
+while.
 
-The `end` command does not change the current exit status.
+The \c end command does not change the current exit status.