Re: How To Emulate An ISPF Editor Feature in Vim

On Tuesday, May 24, 2011 20:05:02 Javier Rojas wrote:

> On Tue, May 24, 2011 at 08:28:00PM -0400, Roy Fulbright wrote:
> > I know this dates me, but back in the day I used to exclude
> > all lines in the ISPF editor using X9999 and then use
> > 'find' to display (unexclude) lines that matched the find
> > criteria. I have been trying to do the same thing with Vim
> > by folding all lines and searching, but my search unfolds
> > all lines. Is there a way to search folded lines and have
> > only matching lines unfolded?

> you can get sort-of what you want using a plugin, and the
> quickfix window.

> See, for example, the Bgrep plugin

> http://www.vim.org/scripts/script.php?script_id=2545

> or this other script:

> http://git.devnull.li/vim-jerojasro.git/blob_plain/HEAD:/local
> -settings/plugin/BufGrep.vim

> They will take a search pattern and create a list with the
> matches (of the current buffer or buffers). You can see the
> list using the :cwindow command.

> See :help :vimgrep , and :help quickfix.txt

or, more simply try the trick i snaggled off this list
recently:

nnoremap <silent> <Leader>o :setlocal
foldexpr=(getline(v:lnum)=~@/)?0:(getline(v:lnum-1)=~@/)\\|\\|
(getline(v:lnum+1)=~@/)?1:2 foldmethod=expr foldlevel=0
foldcolumn=2<CR>
nnoremap <silent> <Leader>oo :call UnsetFolds()<CR>

function! UnsetFolds()
setlocal foldexpr=0
setlocal foldcolumn=0
endfunction

which, for <Leader>o folds everything except what's in @/
(your last search item), and <Leader>oo unfolds everything --
i am finding this eminently useful -- it reminds me of the cms
kedit 'all' command

<rant>
kedit blows (blew?) the doors off ISPF
</rant>

sc

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