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action: do not expand env vars in Exec action

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...<command> argument (but still resolve tilde).

This makes it easier to write sh -c '' constructs without turning labwc
into a shell parser in order to expand environment variables, whilst
respecting single quotes and escaped characters as well as ignoring
subshells syntax like $(foo) and backticks.

Also, fix bug where buffer length+alloc get out-of-sync
This commit is contained in:
Johan Malm 2023-09-21 23:09:05 +01:00 • committed by Johan Malm
parent c6c1f8e04b
commit 881d788bee
6 changed files with 44 additions and 12 deletions
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docs/labwc-actions.5.scd
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@ -19,6 +19,7 @@ Actions are used in menus and keyboard/mouse bindings.
Execute command. Note that in the interest of backward compatibility,
labwc supports <execute> as an alternative to <command> even though
openbox documentation states that it is deprecated.
Note: Tilde (~) is expanded in the command before passing to execvp()
*<action name="Exit" />*
Exit labwc.