The version of etags I have on my system (5.0.1) doesn't support --regex
arguments. It supports --regex-[lang] where you have to define [lang] with
--langdef. I messed around a bit trying to get it working after finding it
in the archives without results.

I recieved a simple perl script from Christian Lindig that does the basics
and will work for now.

Thanks.

Jean-Christophe Filliatre wrote:

> 
> John Eikenberry writes:
>  > 
>  > Oh, and I found an example using etags and its regex... but I had little
>  > luck with it either. Seems etags' regex features have changed quite a bit
>  > since 1999/01.
> 
> I don't  know vim, but  I'm using the  following hack to get  tags for
> Emacs using  etags, and it  still works nice  (of course it is  not as
> satisfactory as tags based on a parsing of ocaml files)
> 
> ======================================================================
> 	find . -name "*.ml*" | sort -r | xargs \
> 	etags "--regex=/let[ \t]+\([^ \t]+\)/\1/" \
> 	      "--regex=/let[ \t]+rec[ \t]+\([^ \t]+\)/\1/" \
> 	      "--regex=/and[ \t]+\([^ \t]+\)/\1/" \
> 	      "--regex=/type[ \t]+\([^ \t]+\)/\1/" \
>               "--regex=/exception[ \t]+\([^ \t]+\)/\1/" \
> 	      "--regex=/val[ \t]+\([^ \t]+\)/\1/" \
> 	      "--regex=/module[ \t]+\([^ \t]+\)/\1/"
> ======================================================================
> 
> The 'sort -r'  is used to have .mli entries  appearing first, then .ml
> entries. Indeed, when looking for an identifier, you usually only want
> its type declaration; if you also want its code, then use C-u M-.
> 
> Hope this helps,

-- 

John Eikenberry
[jae@zhar.net - http://zhar.net]
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