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PATCH: Better diagnostics and docs for trap builtin

X-seq: zsh-workers 21581
From: "Thorsten Dahlheimer" <tdahlheim@xxxxxxx>
To: <zsh-workers@xxxxxxxxxx>
Subject: PATCH: Better diagnostics and docs for trap builtin
Date: Mon, 8 Aug 2005 20:24:04 +0200
Mailing-list: contact zsh-workers-help@xxxxxxxxxx; run by ezmlm

The trap builtin silently ignores invalid signal specifications
if the first argument is "-"; e.g.,

    % trap - INT '@#?junk!*' TERM 

succeeds without complaint.  The attached patch changes this so
that an error is reported (which matches the behaviour if the first
argument is not "-").
I've also amended the documentation for trap, which didn't discuss
the invocations "trap -" and "trap SIG1 SIG2 ...".

Regards,
Thorsten Dahlheimer

Attachment: trap.patch
Description: Binary data

Follow-Ups:
- Re: PATCH: Better diagnostics and docs for trap builtin
  - From: Wayne Davison

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