From: "Tobias C. Rittweiler" <tcr@freebits.de>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: 2499@emacsbugs.donarmstrong.com
Subject: bug#2499: 23.0.91; syntax-ppss / beginning-of-defun not saving match data
Date: Sat, 28 Feb 2009 17:56:14 +0100 [thread overview]
Message-ID: <87tz6efqkx.fsf@freebits.de> (raw)
In-Reply-To: <jwvr61jyxm5.fsf-monnier+emacsbugreports@gnu.org> (Stefan Monnier's message of "Fri, 27 Feb 2009 23:50:32 -0500")
Stefan Monnier <monnier@iro.umontreal.ca> writes:
> > (i) `beginning-of-defun' is allowed to not save match data. If so,
> > please document it.
>
> 99.9% of the functions are allowed to not save match data.
Oh, I didn't know that! I thought the policy was the other way
around. (Perhaps 34.6, The Match Data, should make this policy more
explicit. If so, and you say so, I'll prepare a patch.)
> We do not bother to document it. We should document the functions
> that are not allowed to do it, OTOH.
I think it's still worth to think about making `syntax-ppss' saving the
match data as this function may easily be implicitly invoked by
something deep down.
Thank you for your prompt reply!,
-T.
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next prev parent reply other threads:[~2009-02-28 16:56 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-27 15:42 bug#2499: 23.0.91; syntax-ppss / beginning-of-defun not saving match data tcr
2009-02-28 4:50 ` Stefan Monnier
2009-02-28 16:56 ` Tobias C. Rittweiler [this message]
2009-02-28 22:09 ` Stefan Monnier
2009-03-03 20:50 ` Tobias C. Rittweiler
2011-07-03 18:45 ` Lars Magne Ingebrigtsen
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