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[rbdr/dotfiles] / vim / plugin / endwise.vim

" endwise.vim - EndWise
" Author:       Tim Pope <http://tpo.pe/>
" Version:      1.0
" License:      Same as Vim itself.  See :help license
" GetLatestVimScripts: 2386 1 :AutoInstall: endwise.vim

if exists("g:loaded_endwise") || &cp
  finish
endif
let g:loaded_endwise = 1

augroup endwise " {{{1
  autocmd!
  autocmd FileType lua
        \ let b:endwise_addition = '\=submatch(0)=="{" ? "}" : "end"' |
        \ let b:endwise_words = 'function,do,then' |
        \ let b:endwise_pattern = '^\s*\zs\%(function\|do\|then\)\>\%(.*[^.:@$]\<end\>\)\@!\|\<then\|do\ze\%(\s*|.*|\)\=\s*$' |
        \ let b:endwise_syngroups = 'luaFunction,luaStatement,luaCond'
  autocmd FileType ruby
        \ let b:endwise_addition = '\=submatch(0)=="{" ? "}" : "end"' |
        \ let b:endwise_words = 'module,class,def,if,unless,case,while,until,begin,do' |
        \ let b:endwise_pattern = '^\s*\zs\%(module\|class\|def\|if\|unless\|case\|while\|until\|for\|\|begin\)\>\%(.*[^.:@$]\<end\>\)\@!\|\<do\ze\%(\s*|.*|\)\=\s*$' |
          \ let b:endwise_syngroups = 'rubyModule,rubyClass,rubyDefine,rubyControl,rubyConditional,rubyRepeat'
  autocmd FileType sh,zsh
        \ let b:endwise_addition = '\=submatch(0)=="if" ? "fi" : submatch(0)=="case" ? "esac" : "done"' |
        \ let b:endwise_words = 'if,until,case,do' |
        \ let b:endwise_pattern = '\%(^\s*\zs\%(if\|case\)\>\ze\|\zs\<do\ze$\|^\s*\zsdo\s*\ze$\)' |
        \ let b:endwise_syngroups = 'shConditional,shLoop,shIf,shFor,shRepeat,shCaseEsac,zshConditional,zshRepeat,zshDelimiter'
  autocmd FileType vb,vbnet,aspvbs
        \ let b:endwise_addition = 'End &' |
        \ let b:endwise_words = 'Function,Sub,Class,Module,Enum,Namespace' |
        \ let b:endwise_pattern = '\%(\<End\>.*\)\@<!\<&\>' |
        \ let b:endwise_syngroups = 'vbStatement,vbnetStorage,vbnetProcedure,vbnet.*Words,AspVBSStatement'
  autocmd FileType vim
        \ let b:endwise_addition = 'end&' |
        \ let b:endwise_words = 'fu\%[nction],wh\%[ile],if,for,try' |
        \ let b:endwise_syngroups = 'vimFuncKey,vimNotFunc,vimCommand'
augroup END " }}}1

" Maps {{{1

if maparg("<Plug>DiscretionaryEnd") == ""
  inoremap <silent> <SID>DiscretionaryEnd <C-R>=<SID>crend(0)<CR>
  inoremap <silent> <SID>AlwaysEnd        <C-R>=<SID>crend(1)<CR>
  imap    <script> <Plug>DiscretionaryEnd <SID>DiscretionaryEnd
  imap    <script> <Plug>AlwaysEnd        <SID>AlwaysEnd
endif
if maparg('<CR>','i') =~# '<C-R>=.*crend(.)<CR>\|<\%(Plug\|SID\)>.*End'
  " Already mapped
elseif maparg('<CR>','i') =~ '<CR>'
  exe "imap <script> <C-X><CR> ".maparg('<CR>','i')."<SID>AlwaysEnd"
  exe "imap <script> <CR>      ".maparg('<CR>','i')."<SID>DiscretionaryEnd"
elseif maparg('<CR>','i') =~ '<Plug>delimitMateCR'
  exe "imap <C-X><CR> ".maparg('<CR>', 'i')."<Plug>AlwaysEnd"
  exe "imap <CR> ".maparg('<CR>', 'i')."<Plug>DiscretionaryEnd"
else
  imap <C-X><CR> <CR><Plug>AlwaysEnd
  imap <CR>      <CR><Plug>DiscretionaryEnd
endif

if maparg('<M-o>','i') == ''
  inoremap <M-o> <C-O>o
endif

" }}}1

" Code {{{1

function! s:mysearchpair(beginpat,endpat,synpat)
  let g:endwise_syntaxes = ""
  let s:lastline = line('.')
  call s:synname()
  let line = searchpair(a:beginpat,'',a:endpat,'Wn','<SID>synname() !~# "^'.substitute(a:synpat,'\\','\\\\','g').'$"',line('.')+50)
  return line
endfunction

function! s:crend(always)
  let n = ""
  if !exists("b:endwise_addition") || !exists("b:endwise_words") || !exists("b:endwise_syngroups")
    return n
  end
  let synpat  = '\%('.substitute(b:endwise_syngroups,',','\\|','g').'\)'
  let wordchoice = '\%('.substitute(b:endwise_words,',','\\|','g').'\)'
  if exists("b:endwise_pattern")
    let beginpat = substitute(b:endwise_pattern,'&',substitute(wordchoice,'\\','\\&','g'),'g')
  else
    let beginpat = '\<'.wordchoice.'\>'
  endif
  let lnum = line('.') - 1
  let space = matchstr(getline(lnum),'^\s*')
  let col  = match(getline(lnum),beginpat) + 1
  let word  = matchstr(getline(lnum),beginpat)
  let endword = substitute(word,'.*',b:endwise_addition,'')
  let y = n.endword."\<C-O>O"
  let endpat = '\<'.endword.'\>'
  if a:always
    return y
  elseif col <= 0 || synIDattr(synID(lnum,col,1),'name') !~ '^'.synpat.'$'
    return n
  elseif getline('.') !~ '^\s*#\=$'
    return n
  endif
  let line = s:mysearchpair(beginpat,endpat,synpat)
  " even is false if no end was found, or if the end found was less
  " indented than the current line
  let even = strlen(matchstr(getline(line),'^\s*')) >= strlen(space)
  if line == 0
    let even = 0
  endif
  if !even && line == line('.') + 1
    return y
  endif
  if even
    return n
  endif
  return y
endfunction

function! s:synname()
  " Checking this helps to force things to stay in sync
  while s:lastline < line('.')
    let s = synIDattr(synID(s:lastline,indent(s:lastline)+1,1),'name')
    let s:lastline = nextnonblank(s:lastline + 1)
  endwhile

  let s = synIDattr(synID(line('.'),col('.'),1),'name')
  let g:endwise_syntaxes = g:endwise_syntaxes . line('.').','.col('.')."=".s."\n"
  let s:lastline = line('.')
  return s
endfunction

" }}}1

" vim:set sw=2 sts=2: