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Re: regular expression in find-tag-regexp

From: Eli Zaretskii
Subject: Re: regular expression in find-tag-regexp
Date: Fri, 30 Sep 2011 09:53:17 +0300

> Date: Thu, 29 Sep 2011 17:54:00 -0500
> From: Shiyuan <>
>      I notice that the same regular expression will give different matching
> result in find-tag-regexp (C-M-.) and in isearch-forward-regexp (C-M-S). \

Where did you use C-M-S?  Was it in the buffer that visits the TAGS
table, or was it in the buffer where you have the source file?
find-tag-regexp does the former.  It uses re-search-forward, btw, not

> If I use the Mat.*GetArray.* to search, find-tag-regexp will only match
> MatGetArray_SeqAIJ but isearch-forward-regexp will match all except the
> lower case matgetarray(). If I use the MatGetArray, find-tag-regexp will
> match all of them including the matgetarray()? Anyone can explain why it is
> so? If I want find-tag-regexp to find all of them( with or without the
> matgetarray()), what regexp should I use? Thank you.

It would help if you show what's in your TAGS file for these

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