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Documentation for while: note new exit status changes

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Work on #4982.
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David Adam
2018-09-28 22:57:02 +08:00
parent a1728d61af
commit 5cc92ffd70
1 changed files with 4 additions and 1 deletions
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doc_src/while.txt
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@@ -9,7 +9,10 @@ while CONDITION; COMMANDS...; end
`while` repeatedly executes `CONDITION`, and if the exit status is 0, then executes `COMMANDS`.
If the exit status of `CONDITION` is non-zero on the first iteration, `COMMANDS` will not be executed at all.
If the exit status of `CONDITION` is non-zero on the first iteration, `COMMANDS` will not be
executed at all, and the exit status of the loop set to the exit status of `CONDITION`.
The exit status of the loop is 0 otherwise.
You can use <a href="#and">`and`</a> or <a href="#or">`or`</a> for complex conditions. Even more complex control can be achieved with `while true` containing a <a href="#break">break</a>.