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Re: RegExp in Find Definition
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From: |
Pavel Nedev |
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Subject: |
Re: RegExp in Find Definition |
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Date: |
Fri, 17 Apr 2015 14:30:48 +0300 (EEST) |
My reasoning behind this is that Grep regexp match is OK -> it matches anything
that corresponds to the given pattern without limiting to a single whole
identifier,
while Definition and Reference searches should have identifier boundaries.
If I have both definitions
void tags_1()
int tags_123()
the search
global -gx tags_.
would match both, but
global -dx tags_.
should match only the first. To match the second I would need to do
global -dx tags_...
To match both perhaps I would do
global -dx tags_.*
That mail thread become quite long, sorry for that. I just wanted to make my
idea clear.
Thank you,
Pavel
>-------- Оригинално писмо --------
>От: Pavel Nedev address@hidden
>Относно: Re: RegExp in Find Definition
>До: Pavel Nedev <address@hidden>
>Изпратено на: 17.04.2015 14:17
> And once again, the same is valid for example 2) also - "global -dx tags."
>
> global -dx tags.
>
> should match for example
>
> tags1, tagsx, tagsN....
>
> and shouldn't match
>
> tags_new, tagsRE, gtags, htags2....
>
> Best Regards,
> Pavel
>
>
>
> >-------- Оригинално писмо --------
> >От: Pavel Nedev address@hidden
> >Относно: Re: RegExp in Find Definition
> >До: Pavel Nedev
> >Изпратено на: 17.04.2015 14:13
>
>
> > Sorry, one mistake:
> >
> > for use case 3) "global -dx .tags"
> >
> > I would actually expect to get no results at all as ".tags" as I understand
> > it should filter only definitions that start with any valid char for
> > identifier ('_', 'a'-'z',... etc.) and ending with "tags". For example:
> >
> > gtags, htags, _tags are valid
> > rxtags, tags, gtags_new are not valid.
> >
> > Best Regards,
> > Pavel
> >
> >
> >
> > >-------- Оригинално писмо --------
> > >От: Pavel Nedev address@hidden
> > >Относно: RegExp in Find Definition
> > >До: address@hidden
> > >Изпратено на: 17.04.2015 14:08
> >
> >
> > > Hi,
> > >
> > > I have a question regarding regexp usage in find definition (valid for
> > > finding reference also).
> > >
> > > Here is the use case:
> > > 1) I create global database on global 6.4 sources with "gtags -c"
> > > 2) I run "global -dx tags." - below is the output:
> > >
> > > gtags_close 951 libutil/gtagsop.c gtags_close(GTOP *gtop)
> > > gtags_delete 553 libutil/gtagsop.c gtags_delete(GTOP *gtop, IDSET
> > > *deleteset)
> > > gtags_first 681 libutil/gtagsop.c gtags_first(GTOP *gtop, const
> > > char *pattern, int flags)
> > > gtags_flush 539 libutil/gtagsop.c gtags_flush(GTOP *gtop, const
> > > char *fid)
> > > gtags_next 892 libutil/gtagsop.c gtags_next(GTOP *gtop)
> > > gtags_open 330 libutil/gtagsop.c gtags_open(const char *dbpath,
> > > const char *root, int db, int mode, int flags)
> > > gtags_put_using 480 libutil/gtagsop.c gtags_put_using(GTOP *gtop, const
> > > char *tag, int lno, const char *fid, const char *img)
> > > gtags_restart 644 libutil/gtagsop.c gtags_restart(GTOP *gtop)
> > > gtags_show_statistics 940 libutil/gtagsop.c gtags_show_statistics(GTOP
> > > *gtop)
> > > gtagsexist 142 libutil/getdbpath.c gtagsexist(const char
> > > *candidate, char *dbpath, int size, int verbose)
> > > htags_load_filemap 218 htags-refkit/htags_path2url.c
> > > htags_load_filemap(const char *filemap)
> > > htags_path2url 266 htags-refkit/htags_path2url.c htags_path2url(const
> > > char *path, int line, char *url, int size)
> > > htags_unload_filemap 242 htags-refkit/htags_path2url.c
> > > htags_unload_filemap(void)
> > > tagsearch 1733 global/global.c tagsearch(const char *pattern,
> > > const char *cwd, const char *root, const char *dbpath, int db)
> > >
> > > I would expect that only
> > >
> > > tagsearch 1733 global/global.c tagsearch(const char *pattern,
> > > const char *cwd, const char *root, const char *dbpath, int db)
> > >
> > > would be a valid match as it seems the only definition that matches the
> > > given regexp.
> > >
> > > 3) If I run "global -dx .tags" I get:
> > >
> > > compare_tags 92 libutil/gtagsop.c compare_tags(const void *v1,
> > > const void *v2)
> > > completion_tags 942 global/global.c completion_tags(const char
> > > *dbpath, const char *root, const char *prefix, int db)
> > > createtags 888 gtags/gtags.c createtags(const char *dbpath,
> > > const char *root)
> > > gtags_close 951 libutil/gtagsop.c gtags_close(GTOP *gtop)
> > > gtags_delete 553 libutil/gtagsop.c gtags_delete(GTOP *gtop, IDSET
> > > *deleteset)
> > > gtags_first 681 libutil/gtagsop.c gtags_first(GTOP *gtop, const
> > > char *pattern, int flags)
> > > gtags_flush 539 libutil/gtagsop.c gtags_flush(GTOP *gtop, const
> > > char *fid)
> > > gtags_next 892 libutil/gtagsop.c gtags_next(GTOP *gtop)
> > > gtags_open 330 libutil/gtagsop.c gtags_open(const char *dbpath,
> > > const char *root, int db, int mode, int flags)
> > > gtags_put_using 480 libutil/gtagsop.c gtags_put_using(GTOP *gtop, const
> > > char *tag, int lno, const char *fid, const char *img)
> > > gtags_restart 644 libutil/gtagsop.c gtags_restart(GTOP *gtop)
> > > gtags_show_statistics 940 libutil/gtagsop.c gtags_show_statistics(GTOP
> > > *gtop)
> > > gtagsexist 142 libutil/getdbpath.c gtagsexist(const char
> > > *candidate, char *dbpath, int size, int verbose)
> > > htags_load_filemap 218 htags-refkit/htags_path2url.c
> > > htags_load_filemap(const char *filemap)
> > > htags_path2url 266 htags-refkit/htags_path2url.c htags_path2url(const
> > > char *path, int line, char *url, int size)
> > > htags_unload_filemap 242 htags-refkit/htags_path2url.c
> > > htags_unload_filemap(void)
> > > start_ctags 92 plugin-factory/exuberant-ctags.c start_ctags(const
> > > struct parser_param *param)
> > > start_ctags 161 plugin-factory/exuberant-ctags.c start_ctags(const
> > > struct parser_param *param)
> > > terminate_ctags 136 plugin-factory/exuberant-ctags.c
> > > terminate_ctags(void) {
> > > terminate_ctags 206 plugin-factory/exuberant-ctags.c
> > > terminate_ctags(void)
> > > updatetags 799 gtags/gtags.c updatetags(const char *dbpath,
> > > const char *root, IDSET *deleteset, STRBUF *addlist)
> > >
> > > Same as above, I would expect that only
> > >
> > > gtags_close 951 libutil/gtagsop.c gtags_close(GTOP *gtop)
> > > gtags_delete 553 libutil/gtagsop.c gtags_delete(GTOP *gtop, IDSET
> > > *deleteset)
> > > gtags_first 681 libutil/gtagsop.c gtags_first(GTOP *gtop, const
> > > char *pattern, int flags)
> > > gtags_flush 539 libutil/gtagsop.c gtags_flush(GTOP *gtop, const
> > > char *fid)
> > > gtags_next 892 libutil/gtagsop.c gtags_next(GTOP *gtop)
> > > gtags_open 330 libutil/gtagsop.c gtags_open(const char *dbpath,
> > > const char *root, int db, int mode, int flags)
> > > gtags_put_using 480 libutil/gtagsop.c gtags_put_using(GTOP *gtop, const
> > > char *tag, int lno, const char *fid, const char *img)
> > > gtags_restart 644 libutil/gtagsop.c gtags_restart(GTOP *gtop)
> > > gtags_show_statistics 940 libutil/gtagsop.c gtags_show_statistics(GTOP
> > > *gtop)
> > > gtagsexist 142 libutil/getdbpath.c gtagsexist(const char
> > > *candidate, char *dbpath, int size, int verbose)
> > > htags_load_filemap 218 htags-refkit/htags_path2url.c
> > > htags_load_filemap(const char *filemap)
> > > htags_path2url 266 htags-refkit/htags_path2url.c htags_path2url(const
> > > char *path, int line, char *url, int size)
> > > htags_unload_filemap 242 htags-refkit/htags_path2url.c
> > > htags_unload_filemap(void)
> > >
> > > are shown as the regexp ".tags" matches only these.
> > >
> > > Same is observed with finding references also.
> > >
> > > Am I missing something?
> > >
> > > Thanks,
> > > Best Regards,
> > > Pavel