From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: Jon Dufresne <jon.dufresne@gmail.com>
Cc: emacs-devel@gnu.org
Subject: Re: c-mode syntax strings and regexp word boundaries
Date: Fri, 06 Sep 2013 11:44:15 -0400 [thread overview]
Message-ID: <jwvmwnq0xm7.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <CADhq2b7fVcETNAUGDMV5KALf1yAoTKPTdj76=j3JMeqou4AsDg@mail.gmail.com> (Jon Dufresne's message of "Fri, 6 Sep 2013 07:55:08 -0700")
>> 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.
Yes, I understand.
> 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.
Depending on the particular constraints imposed on you, you might get
away with marking the character *after* END as being the string
delimiter. But that tends to come with its own set of problems, so most
likely, you'll have to live with what you're currently using.
> Ah, ok. Understood. Is it possible to do regexp search of the buffer with
> all text properties ignored?
No. We have `parse-sexp-lookup-properties' to control whether
syntax-table text-properties are ignored or not by parsing function
(like forward-sexp), but there's no such control for regexp matching.
> 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.
Don't rely on syntax (i.e. things like \b, \>, \<, \s), and instead use
something like "^END\\(?:[^[:alnum:]]\\|\\'\\)".
Stefan
next prev parent reply other threads:[~2013-09-06 15:44 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
2013-09-06 15:44 ` Stefan Monnier [this message]
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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