From: Ryan Leavengood <mrcode@...>
Date: 2005-04-27T03:40:17+09:00
Subject: Re: Folding editor for ruby code browsing

Andrew Walrond wrote:
> On Tuesday 26 April 2005 17:30, Ryan Leavengood wrote:
>
>>Ctrl-]
>>
>
>
> How can I generate tags for ruby code? Is it possible?

Apparently Exuberant Ctags (http://ctags.sourceforge.net) supports Ruby,
though I haven't used it yet for Ruby (only for Java, my language for
work.) But there are some flaws in the Ruby support, as described here
(toward the bottom):

http://rubygarden.org/ruby?VimRubySupport

Also another Vim command related to tags that I actually use more than
Ctrl-] is g], which lists all tags matching what is under the cursor. In
the Java code I work with there are usually a lot of methods named the
same in various places, so this allows navigating to all those methods. It
isn't exactly Eclipse with full code-completion and navigation support,
but it isn't too bad (and Vim is certainly a smaller memory footprint ;)

Speaking of Eclipse, there is a Ruby development plugin, but I haven't
used it much yet, so I don't know how many of the Java features you get
with Eclipse also work with Ruby.

Finally, another Vim "feature" that I can't live without is the "sort-of"
code completion you get with Ctrl-N and Ctrl-P, which can be turned into
tab completion by adding this to your vimrc:

" Make tab do completion in certain cases
function! InsertTabWrapper(direction)
    let col = col('.') - 1
    if !col || getline('.')[col - 1] !~ '\k'
        return "\<tab>"
    elseif "backward" == a:direction
        return "\<c-p>"
    else
        return "\<c-n>"
    endif
endfunction

inoremap <tab> <c-r>=InsertTabWrapper ("forward")<cr>
inoremap <s-tab> <c-r>=InsertTabWrapper ("backward")<cr>

Ryan Leavengood