From: Stefan Monnier <monnier@iro.umontreal.ca>
To: immerrr again <immerrr+lua@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: Bug in font-lock-syntactic-keywords handling?
Date: Mon, 06 Oct 2014 09:14:21 -0400 [thread overview]
Message-ID: <jwvppe5ny15.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <CAERznn8OWJZNumUYx8OVMDTs8bjLCF9svFn6P9N69dzQ3TZ+FA@mail.gmail.com> (immerrr again's message of "Mon, 6 Oct 2014 15:42:19 +0400")
> As you can see, for the third iteration start moves back to the
> beginning of the second chunk and it tries to re-propertize it without
> unfontifying which causes an bug in lua-mode's syntactic keyword
> handling. I do know that I (ab-)used a deprecated variable to maintain
> compatibility with Emacs23 and using `syntax-propertize-function`
> should fix that for Emacs24, but I'd be grateful if anyone pointed me
> to a simple fix for Emacs23.
That seems like a performance bug (it re-fontifies something that's
already been fontified), indeed, but I don't see why that would cause
something to "fail".
If it really causes a failure, I suspect that the failure is really
caused by an underlying bug in the specific syntactic-keywords rules,
which merely gets triggered by this performance bug.
Stefan
next prev parent reply other threads:[~2014-10-06 13:14 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-06 11:42 Bug in font-lock-syntactic-keywords handling? immerrr again
2014-10-06 13:14 ` Stefan Monnier [this message]
2014-10-06 14:21 ` immerrr again
2014-10-06 16:28 ` Stefan Monnier
2014-10-06 23:27 ` immerrr again
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