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Local traps again: This is useful, but is it correct?
- X-seq: zsh-workers 11858
- From: "Bart Schaefer" <schaefer@xxxxxxxxxxxxxxxxxxxxxxx>
- To: zsh-workers@xxxxxxxxxxxxxx
- Subject: Local traps again: This is useful, but is it correct?
- Date: Sat, 10 Jun 2000 20:16:11 +0000
- Mailing-list: contact zsh-workers-help@xxxxxxxxxxxxxx; run by ezmlm
One can bypass the "locatraps" option by creating a TRAPxxx function, e.g.
the function remains defined after endtrapscope() but a trap created with
`trap ... xxx' is removed.
This is one of two reasons that Functions/Prompts/promp_bart_setup uses an
assignment to the functions assoc to install a SIGWINCH handler, so I'm not
sure I advocate changing it; but it at least ought to be mentioned in the
doc under LOCAL_TRAPS.
For completeness, I should point out that the TRAPxxx defintion only wins
if there IS NOT already a trap for signal xxx at some higher scope. So it
does behave somewhat inconsistently.
I was about to doublecheck on what happens with `trap ... xxx' in that last
situation, but zsh just crashed again, so I'm going to quit fooling with
signals until Sven comes back online.
--
Bart Schaefer Brass Lantern Enterprises
http://www.well.com/user/barts http://www.brasslantern.com
Zsh: http://www.zsh.org | PHPerl Project: http://phperl.sourceforge.net
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