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let read take a simple string for the prompt

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Fixes #802
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Kurtis Rader
2017-03-25 08:20:55 -07:00
parent e1c3ec25ab
commit 38c851f4cf
3 changed files with 49 additions and 32 deletions
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doc_src/read.txt
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@@ -23,6 +23,8 @@ The following options are available:
- `-p PROMPT_CMD` or `--prompt=PROMPT_CMD` uses the output of the shell command `PROMPT_CMD` as the prompt for the interactive mode. The default prompt command is <code>set_color green; echo read; set_color normal; echo "> "</code>.
- `-P PROMPT_STR` or `--prompt-str=PROMPT_STR` uses the string as the prompt for the interactive mode. It is equivalent to <code>echo PROMPT_STR</code> and is provided solely to avoid the need to frame the prompt as a command. All special characters in the string are automatically escaped before being passed to the <code>echo</code> command.
- `-R RIGHT_PROMPT_CMD` or `--right-prompt=RIGHT_PROMPT_CMD` uses the output of the shell command `RIGHT_PROMPT_CMD` as the right prompt for the interactive mode. There is no default right prompt command.
- `-s` or `--shell` enables syntax highlighting, tab completions and command termination suitable for entering shellscript code in the interactive mode.