Re: How to use etags-select

[Scott Frazer <scfrazer@cisco.com>]

Rafal Kurcz wrote:
> Now the numbering of tags is very, very useful. Below are my
> conclusions about using etags-select:
> 1. It is very nice that it takes advantage of searchable mini buffer -
> especially in case of the long list of tags.

Yes

> 2. How to force etags-select to be case-sensitive.
>   I've setup (setq tags-case-fold-search nil) and it works for M-. but
> unfortunately it does not work in etags-select.
>   It is very important when browsing C/C++ code.

Fixed, see EmacsWiki.

> 3. It would be very nice to show more information in the list of tags.
>   For example VIM uses the following format to show the list of tags
> generated by "exuberent-ctags -R":
> 
>  # pri kind tag               file
>   1 FSC m    speed             class.cpp
>                struct:Plane
>                int speed;
>   2 FSC f    speed             class.cpp
>                class:Car
>                void speed () {return;}
>   3 F C f    speed             class.cpp
>                struct:Bike
>                int speed () {return 10;}
>   4 F C f    speed             class.cpp
>                char speed (char c) {return c;}
> Choice number (<Enter> cancels):
> 

[snip]

> I can see that it works partially for TAGS generated by etags from
> emacs but does not work for TAGS generated by "exuberent-ctags -e -R".
> I guess that for the sake of convinience it is better to have each tag
> description in a single line.

I can't really do much about this, I can only work with what etags and
exuberant-ctags generates.  etags adds namespace information for c++ code,
which I show as part of the tag name.  exuberant-ctags just puts in the
unqualified tag.  You can add the 'extra' option:

ctags --extra=q -e -R

which will include the namespace info, but it keeps the original tag also;
i.e. you get double entries for most tags, both pointing to the same line
of code.  If it really bugs you, it would be pretty easy to post-process
the TAGS file and remove the duplicates (left as an exercise for the
student).

Scott