runtime/ftplugin/vim.vim

" Vim filetype plugin
" Language:	Vim
" Maintainer:	Bram Moolenaar <Bram@vim.org>
" Last Change:	2004 Sep 13

" Only do this when not done yet for this buffer
if exists("b:did_ftplugin")
  finish
endif

" Don't load another plugin for this buffer
let b:did_ftplugin = 1

let cpo_save = &cpo
set cpo-=C

let b:undo_ftplugin = "setl fo< com< tw< commentstring<"
	\ . "| unlet! b:match_ignorecase b:match_words b:match_skip"

" Set 'formatoptions' to break comment lines but not other lines,
" and insert the comment leader when hitting <CR> or using "o".
setlocal fo-=t fo+=croql

" Set 'comments' to format dashed lists in comments
setlocal com=sO:\"\ -,mO:\"\ \ ,eO:\"\",:\"

" Format comments to be up to 78 characters long
if &tw == 0
  setlocal tw=78
endif

" Comments start with a double quote
setlocal commentstring=\"%s

" Move around functions.
noremap <silent><buffer> [[ m':call search('^\s*fu\%[nction]\>', "bW")<CR>
noremap <silent><buffer> ]] m':call search('^\s*fu\%[nction]\>', "W")<CR>
noremap <silent><buffer> [] m':call search('^\s*endf*\%[unction]\>', "bW")<CR>
noremap <silent><buffer> ][ m':call search('^\s*endf*\%[unction]\>', "W")<CR>

" Move around comments
noremap <silent><buffer> ]" :call search('^\(\s*".*\n\)\@<!\(\s*"\)', "W")<CR>
noremap <silent><buffer> [" :call search('\%(^\s*".*\n\)\%(^\s*"\)\@!', "bW")<CR>

" Let the matchit plugin know what items can be matched.
if exists("loaded_matchit")
  let b:match_ignorecase = 0
  let b:match_words =
	\ '\<fu\%[nction]\>:\<retu\%[rn]\>:\<endf\%[unction]\>,' .
	\ '\<wh\%[ile]\>:\<brea\%[k]\>:\<con\%[tinue]\>:\<endw\%[hile]\>,' .
	\ '\<if\>:\<el\%[seif]\>:\<en\%[dif]\>,' .
	\ '\<try\>:\<cat\%[ch]\>:\<fina\%[lly]\>:\<endt\%[ry]\>,' .
	\ '\<aug\%[roup]\s\+\%(END\>\)\@!\S:\<aug\%[roup]\s\+END\>,' .
	\ '(:)'
  " Ignore ":syntax region" commands, the 'end' argument clobbers if-endif
  let b:match_skip = 'getline(".") =~ "^\\s*sy\\%[ntax]\\s\\+region" ||
	\ synIDattr(synID(line("."),col("."),1),"name") =~? "comment\\|string"'
endif

let &cpo = cpo_save
setlocal cpo+=M		" makes \%( match \)