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|
" matchit.vim: (global plugin) Extended "%" matching
" Last Change: Fri Jan 25 10:00 AM 2008 EST
" Maintainer: Benji Fisher PhD <benji@member.AMS.org>
" Version: 1.13.2, for Vim 6.3+
" URL: http://www.vim.org/script.php?script_id=39
" Documentation:
" The documentation is in a separate file, matchit.txt .
" Credits:
" Vim editor by Bram Moolenaar (Thanks, Bram!)
" Original script and design by Raul Segura Acevedo
" Support for comments by Douglas Potts
" Support for back references and other improvements by Benji Fisher
" Support for many languages by Johannes Zellner
" Suggestions for improvement, bug reports, and support for additional
" languages by Jordi-Albert Batalla, Neil Bird, Servatius Brandt, Mark
" Collett, Stephen Wall, Dany St-Amant, Yuheng Xie, and Johannes Zellner.
" Debugging:
" If you'd like to try the built-in debugging commands...
" :MatchDebug to activate debugging for the current buffer
" This saves the values of several key script variables as buffer-local
" variables. See the MatchDebug() function, below, for details.
" TODO: I should think about multi-line patterns for b:match_words.
" This would require an option: how many lines to scan (default 1).
" This would be useful for Python, maybe also for *ML.
" TODO: Maybe I should add a menu so that people will actually use some of
" the features that I have implemented.
" TODO: Eliminate the MultiMatch function. Add yet another argument to
" Match_wrapper() instead.
" TODO: Allow :let b:match_words = '\(\(foo\)\(bar\)\):\3\2:end\1'
" TODO: Make backrefs safer by using '\V' (very no-magic).
" TODO: Add a level of indirection, so that custom % scripts can use my
" work but extend it.
" allow user to prevent loading
" and prevent duplicate loading
if exists("loaded_matchit") || &cp
finish
endif
let loaded_matchit = 1
let s:last_mps = ""
let s:last_words = ":"
let s:save_cpo = &cpo
set cpo&vim
nnoremap <silent> % :<C-U>call <SID>Match_wrapper('',1,'n') <CR>
nnoremap <silent> g% :<C-U>call <SID>Match_wrapper('',0,'n') <CR>
vnoremap <silent> % :<C-U>call <SID>Match_wrapper('',1,'v') <CR>m'gv``
vnoremap <silent> g% :<C-U>call <SID>Match_wrapper('',0,'v') <CR>m'gv``
onoremap <silent> % v:<C-U>call <SID>Match_wrapper('',1,'o') <CR>
onoremap <silent> g% v:<C-U>call <SID>Match_wrapper('',0,'o') <CR>
" Analogues of [{ and ]} using matching patterns:
nnoremap <silent> [% :<C-U>call <SID>MultiMatch("bW", "n") <CR>
nnoremap <silent> ]% :<C-U>call <SID>MultiMatch("W", "n") <CR>
vmap [% <Esc>[%m'gv``
vmap ]% <Esc>]%m'gv``
" vnoremap <silent> [% :<C-U>call <SID>MultiMatch("bW", "v") <CR>m'gv``
" vnoremap <silent> ]% :<C-U>call <SID>MultiMatch("W", "v") <CR>m'gv``
onoremap <silent> [% v:<C-U>call <SID>MultiMatch("bW", "o") <CR>
onoremap <silent> ]% v:<C-U>call <SID>MultiMatch("W", "o") <CR>
" text object:
vmap a% <Esc>[%v]%
" Auto-complete mappings: (not yet "ready for prime time")
" TODO Read :help write-plugin for the "right" way to let the user
" specify a key binding.
" let g:match_auto = '<C-]>'
" let g:match_autoCR = '<C-CR>'
" if exists("g:match_auto")
" execute "inoremap " . g:match_auto . ' x<Esc>"=<SID>Autocomplete()<CR>Pls'
" endif
" if exists("g:match_autoCR")
" execute "inoremap " . g:match_autoCR . ' <CR><C-R>=<SID>Autocomplete()<CR>'
" endif
" if exists("g:match_gthhoh")
" execute "inoremap " . g:match_gthhoh . ' <C-O>:call <SID>Gthhoh()<CR>'
" endif " gthhoh = "Get the heck out of here!"
let s:notslash = '\\\@<!\%(\\\\\)*'
function! s:Match_wrapper(word, forward, mode) range
" In s:CleanUp(), :execute "set" restore_options .
let restore_options = (&ic ? " " : " no") . "ignorecase"
if exists("b:match_ignorecase")
let &ignorecase = b:match_ignorecase
endif
let restore_options = " ve=" . &ve . restore_options
set ve=
" If this function was called from Visual mode, make sure that the cursor
" is at the correct end of the Visual range:
if a:mode == "v"
execute "normal! gv\<Esc>"
endif
" In s:CleanUp(), we may need to check whether the cursor moved forward.
let startline = line(".")
let startcol = col(".")
" Use default behavior if called with a count.
if v:count
exe "normal! " . v:count . "%"
return s:CleanUp(restore_options, a:mode, startline, startcol)
end
" First step: if not already done, set the script variables
" s:do_BR flag for whether there are backrefs
" s:pat parsed version of b:match_words
" s:all regexp based on s:pat and the default groups
"
if !exists("b:match_words") || b:match_words == ""
let match_words = ""
" Allow b:match_words = "GetVimMatchWords()" .
elseif b:match_words =~ ":"
let match_words = b:match_words
else
execute "let match_words =" b:match_words
endif
" Thanks to Preben "Peppe" Guldberg and Bram Moolenaar for this suggestion!
if (match_words != s:last_words) || (&mps != s:last_mps) ||
\ exists("b:match_debug")
let s:last_words = match_words
let s:last_mps = &mps
" The next several lines were here before
" BF started messing with this script.
" quote the special chars in 'matchpairs', replace [,:] with \| and then
" append the builtin pairs (/*, */, #if, #ifdef, #else, #elif, #endif)
" let default = substitute(escape(&mps, '[$^.*~\\/?]'), '[,:]\+',
" \ '\\|', 'g').'\|\/\*\|\*\/\|#if\>\|#ifdef\>\|#else\>\|#elif\>\|#endif\>'
let default = escape(&mps, '[$^.*~\\/?]') . (strlen(&mps) ? "," : "") .
\ '\/\*:\*\/,#\s*if\%(def\)\=:#\s*else\>:#\s*elif\>:#\s*endif\>'
" s:all = pattern with all the keywords
let match_words = match_words . (strlen(match_words) ? "," : "") . default
if match_words !~ s:notslash . '\\\d'
let s:do_BR = 0
let s:pat = match_words
else
let s:do_BR = 1
let s:pat = s:ParseWords(match_words)
endif
let s:all = substitute(s:pat, s:notslash . '\zs[,:]\+', '\\|', 'g')
let s:all = '\%(' . s:all . '\)'
" let s:all = '\%(' . substitute(s:all, '\\\ze[,:]', '', 'g') . '\)'
if exists("b:match_debug")
let b:match_pat = s:pat
endif
endif
" Second step: set the following local variables:
" matchline = line on which the cursor started
" curcol = number of characters before match
" prefix = regexp for start of line to start of match
" suffix = regexp for end of match to end of line
" Require match to end on or after the cursor and prefer it to
" start on or before the cursor.
let matchline = getline(startline)
if a:word != ''
" word given
if a:word !~ s:all
echohl WarningMsg|echo 'Missing rule for word:"'.a:word.'"'|echohl NONE
return s:CleanUp(restore_options, a:mode, startline, startcol)
endif
let matchline = a:word
let curcol = 0
let prefix = '^\%('
let suffix = '\)$'
" Now the case when "word" is not given
else " Find the match that ends on or after the cursor and set curcol.
let regexp = s:Wholematch(matchline, s:all, startcol-1)
let curcol = match(matchline, regexp)
" If there is no match, give up.
if curcol == -1
return s:CleanUp(restore_options, a:mode, startline, startcol)
endif
let endcol = matchend(matchline, regexp)
let suf = strlen(matchline) - endcol
let prefix = (curcol ? '^.*\%' . (curcol + 1) . 'c\%(' : '^\%(')
let suffix = (suf ? '\)\%' . (endcol + 1) . 'c.*$' : '\)$')
endif
if exists("b:match_debug")
let b:match_match = matchstr(matchline, regexp)
let b:match_col = curcol+1
endif
" Third step: Find the group and single word that match, and the original
" (backref) versions of these. Then, resolve the backrefs.
" Set the following local variable:
" group = colon-separated list of patterns, one of which matches
" = ini:mid:fin or ini:fin
"
" Reconstruct the version with unresolved backrefs.
let patBR = substitute(match_words.',',
\ s:notslash.'\zs[,:]*,[,:]*', ',', 'g')
let patBR = substitute(patBR, s:notslash.'\zs:\{2,}', ':', 'g')
" Now, set group and groupBR to the matching group: 'if:endif' or
" 'while:endwhile' or whatever. A bit of a kluge: s:Choose() returns
" group . "," . groupBR, and we pick it apart.
let group = s:Choose(s:pat, matchline, ",", ":", prefix, suffix, patBR)
let i = matchend(group, s:notslash . ",")
let groupBR = strpart(group, i)
let group = strpart(group, 0, i-1)
" Now, matchline =~ prefix . substitute(group,':','\|','g') . suffix
if s:do_BR " Do the hard part: resolve those backrefs!
let group = s:InsertRefs(groupBR, prefix, group, suffix, matchline)
endif
if exists("b:match_debug")
let b:match_wholeBR = groupBR
let i = matchend(groupBR, s:notslash . ":")
let b:match_iniBR = strpart(groupBR, 0, i-1)
endif
" Fourth step: Set the arguments for searchpair().
let i = matchend(group, s:notslash . ":")
let j = matchend(group, '.*' . s:notslash . ":")
let ini = strpart(group, 0, i-1)
let mid = substitute(strpart(group, i,j-i-1), s:notslash.'\zs:', '\\|', 'g')
let fin = strpart(group, j)
"Un-escape the remaining , and : characters.
let ini
|