Re: plug-in parser's output

[Hideki IWAMOTO]

On Tue, 19 Jul 2005 19:57:18 +0900, Hideki IWAMOTO wrote...
> On Tue, 19 Jul 2005 06:47:35 +0900, Shigio Yamaguchi wrote...
> > > The patch attached adds a converter from tags to GTAGS and GPATH.
> > 
> > Do you think both the plug-in parser and the converter are needed?
> > What merit does this patch bring?
> 
> Hmm.
> The converter from tags to GTAGS is slower than plug-in parser.
> Therefore, at present, there is no merit.
> 

This is revised version. 
This version is as fast as plug-in parser.

------------------
diffstat
 gtags/gtags.c   |  214 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 gtags/manual.in |    5 +
 2 files changed, 219 insertions(+)

------------------
Comparison of execution time 
  (gtags-add-compact5.patch is also applied.)

[linux-2.0.40]$ time env GTAGSLABEL=ctags-exuberant gtags
5.093u 0.793s 0:08.80 66.8%     0+0k 0+0io 0pf+0w
[linux-2.0.40]$ time env GTAGSLABEL=ctags-exuberant gtags -c
5.430u 0.810s 0:07.42 84.0%     0+0k 0+0io 0pf+0w

[linux-2.0.40]$ time ctags -R
2.670u 0.464s 0:03.13 100.0%    0+0k 0+0io 0pf+0w
[linux-2.0.40]$ time gtags --ctags2gtags
Warning: 'operator <<' ignored, because it includes blank.
Warning: 'operator >>' ignored, because it includes blank.
Warning: 'operator >>' ignored, because it includes blank.
5.081u 0.535s 0:08.17 68.6%     0+0k 0+0io 0pf+0w
[linux-2.0.40]$ time gtags --ctags2gtags -c
Warning: 'operator <<' ignored, because it includes blank.
Warning: 'operator >>' ignored, because it includes blank.
Warning: 'operator >>' ignored, because it includes blank.
5.143u 0.427s 0:06.95 80.0%     0+0k 0+0io 0pf+0w

[linux-2.0.40]$ time make tags
CTAGSF=`ctags --version | grep -i exuberant >/dev/null && echo "-I 
__initdata,__exitdata,EXPORT_SYMBOL,EXPORT_SYMBOL_NOVERS"`; \
ctags $CTAGSF `find include/asm-i386 -name '*.h'` && \
find include -type d \( -name "asm-*" -o -name config \) -prune -o -name '*.h' 
-print | xargs ctags $CTAGSF -a && \
find kernel drivers mm fs net ipc lib arch/i386/kernel arch/i386/mm 
arch/i386/lib init -name '*.c' | xargs ctags $CTAGSF -a
1.958u 0.327s 0:02.28 99.5%     0+0k 0+0io 0pf+0w
[linux-2.0.40]$ time gtags --ctags2gtags
3.492u 0.277s 0:05.39 69.7%     0+0k 0+0io 0pf+0w
[linux-2.0.40]$ time gtags --ctags2gtags -c
3.498u 0.279s 0:04.40 85.4%     0+0k 0+0io 0pf+0w

----
Hideki IWAMOTO  address@hidden

ctags2gtags-2.patch
Description: Binary data