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31830: New feature for zshaddhistory hooks.

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If the first non-zero return status is 2, save the line on the
internal history list, but don't write it out.
This commit is contained in:
Peter Stephenson 2013-10-17 10:14:25 +01:00
parent a8f736b4cf
commit 73ececfd01
5 changed files with 49 additions and 7 deletions
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Doc/Zsh/func.yo
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@ -264,9 +264,16 @@ Executed when a history line has been read interactively, but
before it is executed. The sole argument is the complete history
line (so that any terminating newline will still be present).
If any of the hook functions return a non-zero value the history
line will not be saved, although it lingers in the history until the
next line is executed, allowing you to reuse or edit it immediately.
If any of the hook functions returns status 1 (or any non-zero value
other than 2, though this is not guaranteed for future versions of the
shell) the history line will not be saved, although it lingers in the
history until the next line is executed, allowing you to reuse or edit
it immediately.
If any of the hook functions returns status 2 the history line
will be saved on the internal history list, but not written to
the history file. In case of a conflict, the first non-zero status
value is taken.
A hook function may call `tt(fc -p) var(...)' to switch the history
context so that the history is saved in a different file from the