From: Jon Dufresne <jon.dufresne@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: emacs-devel@gnu.org
Subject: Re: c-mode syntax strings and regexp word boundaries
Date: Fri, 6 Sep 2013 07:55:08 -0700 [thread overview]
Message-ID: <CADhq2b7fVcETNAUGDMV5KALf1yAoTKPTdj76=j3JMeqou4AsDg@mail.gmail.com> (raw)
In-Reply-To: <jwv8uza11v1.fsf-monnier+emacs@gnu.org>
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Thanks.
On Fri, Sep 6, 2013 at 7:07 AM, Stefan Monnier <monnier@iro.umontreal.ca>wrote:
> > (re-search-forward "^END\\b")
> > (put-text-property (1- (point)) (point)
> > 'syntax-table (string-to-syntax "|"))
>
> This changes the syntax of this "D" from "w" to "|".
>
In this simplified example I *want* the entire string "END" to be a single
end of string syntax. It is not part of the actual string, only marks the
end of one. Instead, I went with only marking the "D" because marking all
characters appears (to me) to create three string fences when I only want
one.
>
> > (goto-char (point-min))
> > (message "Search forward second time")
> > (re-search-forward "^END\\b"))
>
> The char before ";" is "D" which is not a word char any more, and the
> ";" is not a word char either, so the point between the two is not
> a word boundary any more.
>
>
Ah, ok. Understood. Is it possible to do regexp search of the buffer with
all text properties ignored? Or is there a better way to search for the
"END" delimiter? I'll need it to work before the buffer is propertized and
after the propertized buffer changed.
The current implementation (as you might be able to guess) works when the
buffer is first propertized, but not when the buffer is modified (as the
regexp in the test example fails).
Thanks,
Jon
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next prev parent reply other threads:[~2013-09-06 14:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-06 5:14 c-mode syntax strings and regexp word boundaries Jon Dufresne
2013-09-06 12:21 ` Andreas Röhler
2013-09-06 14:07 ` Stefan Monnier
2013-09-06 14:55 ` Jon Dufresne [this message]
2013-09-06 15:44 ` Stefan Monnier
2013-09-06 17:04 ` Jon Dufresne
2013-09-06 20:19 ` Alan Mackenzie
2013-09-06 22:38 ` Jon Dufresne
2013-09-11 8:57 ` Andreas Röhler
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