813 lines
30 KiB
VimL
813 lines
30 KiB
VimL
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" matchit.vim: (global plugin) Extended "%" matching
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" Last Change: Fri Jan 25 10:00 AM 2008 EST
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" Maintainer: Benji Fisher PhD <benji@member.AMS.org>
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" Version: 1.13.2, for Vim 6.3+
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" URL: http://www.vim.org/script.php?script_id=39
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" Documentation:
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" The documentation is in a separate file, matchit.txt .
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" Credits:
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" Vim editor by Bram Moolenaar (Thanks, Bram!)
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" Original script and design by Raul Segura Acevedo
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" Support for comments by Douglas Potts
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" Support for back references and other improvements by Benji Fisher
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" Support for many languages by Johannes Zellner
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" Suggestions for improvement, bug reports, and support for additional
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" languages by Jordi-Albert Batalla, Neil Bird, Servatius Brandt, Mark
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" Collett, Stephen Wall, Dany St-Amant, Yuheng Xie, and Johannes Zellner.
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" Debugging:
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" If you'd like to try the built-in debugging commands...
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" :MatchDebug to activate debugging for the current buffer
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" This saves the values of several key script variables as buffer-local
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" variables. See the MatchDebug() function, below, for details.
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" TODO: I should think about multi-line patterns for b:match_words.
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" This would require an option: how many lines to scan (default 1).
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" This would be useful for Python, maybe also for *ML.
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" TODO: Maybe I should add a menu so that people will actually use some of
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" the features that I have implemented.
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" TODO: Eliminate the MultiMatch function. Add yet another argument to
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" Match_wrapper() instead.
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" TODO: Allow :let b:match_words = '\(\(foo\)\(bar\)\):\3\2:end\1'
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" TODO: Make backrefs safer by using '\V' (very no-magic).
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" TODO: Add a level of indirection, so that custom % scripts can use my
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" work but extend it.
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" allow user to prevent loading
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" and prevent duplicate loading
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if exists("loaded_matchit") || &cp
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finish
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endif
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let loaded_matchit = 1
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let s:last_mps = ""
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let s:last_words = ":"
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let s:save_cpo = &cpo
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set cpo&vim
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nnoremap <silent> % :<C-U>call <SID>Match_wrapper('',1,'n') <CR>
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nnoremap <silent> g% :<C-U>call <SID>Match_wrapper('',0,'n') <CR>
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vnoremap <silent> % :<C-U>call <SID>Match_wrapper('',1,'v') <CR>m'gv``
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vnoremap <silent> g% :<C-U>call <SID>Match_wrapper('',0,'v') <CR>m'gv``
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onoremap <silent> % v:<C-U>call <SID>Match_wrapper('',1,'o') <CR>
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onoremap <silent> g% v:<C-U>call <SID>Match_wrapper('',0,'o') <CR>
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" Analogues of [{ and ]} using matching patterns:
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nnoremap <silent> [% :<C-U>call <SID>MultiMatch("bW", "n") <CR>
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nnoremap <silent> ]% :<C-U>call <SID>MultiMatch("W", "n") <CR>
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vmap [% <Esc>[%m'gv``
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vmap ]% <Esc>]%m'gv``
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" vnoremap <silent> [% :<C-U>call <SID>MultiMatch("bW", "v") <CR>m'gv``
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" vnoremap <silent> ]% :<C-U>call <SID>MultiMatch("W", "v") <CR>m'gv``
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onoremap <silent> [% v:<C-U>call <SID>MultiMatch("bW", "o") <CR>
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onoremap <silent> ]% v:<C-U>call <SID>MultiMatch("W", "o") <CR>
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" text object:
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vmap a% <Esc>[%v]%
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" Auto-complete mappings: (not yet "ready for prime time")
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" TODO Read :help write-plugin for the "right" way to let the user
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" specify a key binding.
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" let g:match_auto = '<C-]>'
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" let g:match_autoCR = '<C-CR>'
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" if exists("g:match_auto")
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" execute "inoremap " . g:match_auto . ' x<Esc>"=<SID>Autocomplete()<CR>Pls'
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" endif
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" if exists("g:match_autoCR")
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" execute "inoremap " . g:match_autoCR . ' <CR><C-R>=<SID>Autocomplete()<CR>'
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" endif
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" if exists("g:match_gthhoh")
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" execute "inoremap " . g:match_gthhoh . ' <C-O>:call <SID>Gthhoh()<CR>'
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" endif " gthhoh = "Get the heck out of here!"
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let s:notslash = '\\\@<!\%(\\\\\)*'
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function! s:Match_wrapper(word, forward, mode) range
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" In s:CleanUp(), :execute "set" restore_options .
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let restore_options = (&ic ? " " : " no") . "ignorecase"
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if exists("b:match_ignorecase")
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let &ignorecase = b:match_ignorecase
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endif
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let restore_options = " ve=" . &ve . restore_options
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set ve=
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" If this function was called from Visual mode, make sure that the cursor
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" is at the correct end of the Visual range:
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if a:mode == "v"
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execute "normal! gv\<Esc>"
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endif
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" In s:CleanUp(), we may need to check whether the cursor moved forward.
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let startline = line(".")
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let startcol = col(".")
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" Use default behavior if called with a count.
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if v:count
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exe "normal! " . v:count . "%"
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return s:CleanUp(restore_options, a:mode, startline, startcol)
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end
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" First step: if not already done, set the script variables
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" s:do_BR flag for whether there are backrefs
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" s:pat parsed version of b:match_words
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" s:all regexp based on s:pat and the default groups
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"
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if !exists("b:match_words") || b:match_words == ""
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let match_words = ""
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" Allow b:match_words = "GetVimMatchWords()" .
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elseif b:match_words =~ ":"
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let match_words = b:match_words
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else
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execute "let match_words =" b:match_words
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endif
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" Thanks to Preben "Peppe" Guldberg and Bram Moolenaar for this suggestion!
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if (match_words != s:last_words) || (&mps != s:last_mps) ||
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\ exists("b:match_debug")
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let s:last_words = match_words
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let s:last_mps = &mps
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" The next several lines were here before
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" BF started messing with this script.
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" quote the special chars in 'matchpairs', replace [,:] with \| and then
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" append the builtin pairs (/*, */, #if, #ifdef, #else, #elif, #endif)
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" let default = substitute(escape(&mps, '[$^.*~\\/?]'), '[,:]\+',
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" \ '\\|', 'g').'\|\/\*\|\*\/\|#if\>\|#ifdef\>\|#else\>\|#elif\>\|#endif\>'
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let default = escape(&mps, '[$^.*~\\/?]') . (strlen(&mps) ? "," : "") .
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\ '\/\*:\*\/,#if\%(def\)\=:#else\>:#elif\>:#endif\>'
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" s:all = pattern with all the keywords
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let match_words = match_words . (strlen(match_words) ? "," : "") . default
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if match_words !~ s:notslash . '\\\d'
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let s:do_BR = 0
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let s:pat = match_words
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else
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let s:do_BR = 1
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let s:pat = s:ParseWords(match_words)
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endif
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let s:all = substitute(s:pat, s:notslash . '\zs[,:]\+', '\\|', 'g')
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let s:all = '\%(' . s:all . '\)'
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" let s:all = '\%(' . substitute(s:all, '\\\ze[,:]', '', 'g') . '\)'
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if exists("b:match_debug")
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let b:match_pat = s:pat
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endif
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endif
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" Second step: set the following local variables:
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" matchline = line on which the cursor started
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" curcol = number of characters before match
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" prefix = regexp for start of line to start of match
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" suffix = regexp for end of match to end of line
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" Require match to end on or after the cursor and prefer it to
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" start on or before the cursor.
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let matchline = getline(startline)
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if a:word != ''
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" word given
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if a:word !~ s:all
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echohl WarningMsg|echo 'Missing rule for word:"'.a:word.'"'|echohl NONE
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return s:CleanUp(restore_options, a:mode, startline, startcol)
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endif
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let matchline = a:word
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let curcol = 0
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let prefix = '^\%('
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let suffix = '\)$'
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" Now the case when "word" is not given
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else " Find the match that ends on or after the cursor and set curcol.
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let regexp = s:Wholematch(matchline, s:all, startcol-1)
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let curcol = match(matchline, regexp)
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" If there is no match, give up.
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if curcol == -1
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return s:CleanUp(restore_options, a:mode, startline, startcol)
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endif
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let endcol = matchend(matchline, regexp)
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let suf = strlen(matchline) - endcol
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let prefix = (curcol ? '^.*\%' . (curcol + 1) . 'c\%(' : '^\%(')
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let suffix = (suf ? '\)\%' . (endcol + 1) . 'c.*$' : '\)$')
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endif
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if exists("b:match_debug")
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let b:match_match = matchstr(matchline, regexp)
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let b:match_col = curcol+1
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endif
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" Third step: Find the group and single word that match, and the original
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" (backref) versions of these. Then, resolve the backrefs.
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" Set the following local variable:
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" group = colon-separated list of patterns, one of which matches
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" = ini:mid:fin or ini:fin
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"
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" Reconstruct the version with unresolved backrefs.
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let patBR = substitute(match_words.',',
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\ s:notslash.'\zs[,:]*,[,:]*', ',', 'g')
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let patBR = substitute(patBR, s:notslash.'\zs:\{2,}', ':', 'g')
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" Now, set group and groupBR to the matching group: 'if:endif' or
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" 'while:endwhile' or whatever. A bit of a kluge: s:Choose() returns
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" group . "," . groupBR, and we pick it apart.
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let group = s:Choose(s:pat, matchline, ",", ":", prefix, suffix, patBR)
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let i = matchend(group, s:notslash . ",")
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let groupBR = strpart(group, i)
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let group = strpart(group, 0, i-1)
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" Now, matchline =~ prefix . substitute(group,':','\|','g') . suffix
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if s:do_BR " Do the hard part: resolve those backrefs!
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let group = s:InsertRefs(groupBR, prefix, group, suffix, matchline)
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endif
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if exists("b:match_debug")
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let b:match_wholeBR = groupBR
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let i = matchend(groupBR, s:notslash . ":")
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let b:match_iniBR = strpart(groupBR, 0, i-1)
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endif
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" Fourth step: Set the arguments for searchpair().
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let i = matchend(group, s:notslash . ":")
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let j = matchend(group, '.*' . s:notslash . ":")
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let ini = strpart(group, 0, i-1)
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let mid = substitute(strpart(group, i,j-i-1), s:notslash.'\zs:', '\\|', 'g')
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let fin = strpart(group, j)
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"Un-escape the remaining , and : characters.
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let ini = substitute(ini, s:notslash . '\zs\\\(:\|,\)', '\1', 'g')
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let mid = substitute(mid, s:notslash . '\zs\\\(:\|,\)', '\1', 'g')
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let fin = substitute(fin, s:notslash . '\zs\\\(:\|,\)', '\1', 'g')
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" searchpair() requires that these patterns avoid \(\) groups.
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let ini = substitute(ini, s:notslash . '\zs\\(', '\\%(', 'g')
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let mid = substitute(mid, s:notslash . '\zs\\(', '\\%(', 'g')
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let fin = substitute(fin, s:notslash . '\zs\\(', '\\%(', 'g')
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" Set mid. This is optimized for readability, not micro-efficiency!
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if a:forward && matchline =~ prefix . fin . suffix
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\ || !a:forward && matchline =~ prefix . ini . suffix
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let mid = ""
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endif
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" Set flag. This is optimized for readability, not micro-efficiency!
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if a:forward && matchline =~ prefix . fin . suffix
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\ || !a:forward && matchline !~ prefix . ini . suffix
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let flag = "bW"
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else
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let flag = "W"
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endif
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" Set skip.
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if exists("b:match_skip")
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let skip = b:match_skip
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elseif exists("b:match_comment") " backwards compatibility and testing!
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let skip = "r:" . b:match_comment
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else
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let skip = 's:comment\|string'
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endif
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let skip = s:ParseSkip(skip)
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if exists("b:match_debug")
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let b:match_ini = ini
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let b:match_tail = (strlen(mid) ? mid.'\|' : '') . fin
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endif
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" Fifth step: actually start moving the cursor and call searchpair().
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" Later, :execute restore_cursor to get to the original screen.
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let restore_cursor = virtcol(".") . "|"
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normal! g0
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let restore_cursor = line(".") . "G" . virtcol(".") . "|zs" . restore_cursor
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normal! H
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let restore_cursor = "normal!" . line(".") . "Gzt" . restore_cursor
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execute restore_cursor
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call cursor(0, curcol + 1)
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" normal! 0
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" if curcol
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" execute "normal!" . curcol . "l"
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" endif
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if skip =~ 'synID' && !(has("syntax") && exists("g:syntax_on"))
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let skip = "0"
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else
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execute "if " . skip . "| let skip = '0' | endif"
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endif
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let sp_return = searchpair(ini, mid, fin, flag, skip)
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let final_position = "call cursor(" . line(".") . "," . col(".") . ")"
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" Restore cursor position and original screen.
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execute restore_cursor
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normal! m'
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if sp_return > 0
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execute final_position
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endif
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return s:CleanUp(restore_options, a:mode, startline, startcol, mid.'\|'.fin)
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endfun
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" Restore options and do some special handling for Operator-pending mode.
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" The optional argument is the tail of the matching group.
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fun! s:CleanUp(options, mode, startline, startcol, ...)
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execute "set" a:options
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" Open folds, if appropriate.
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if a:mode != "o"
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if &foldopen =~ "percent"
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normal! zv
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endif
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" In Operator-pending mode, we want to include the whole match
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" (for example, d%).
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" This is only a problem if we end up moving in the forward direction.
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elseif (a:startline < line(".")) ||
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\ (a:startline == line(".") && a:startcol < col("."))
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if a:0
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" Check whether the match is a single character. If not, move to the
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" end of the match.
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let matchline = getline(".")
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let currcol = col(".")
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let regexp = s:Wholematch(matchline, a:1, currcol-1)
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let endcol = matchend(matchline, regexp)
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if endcol > currcol " This is NOT off by one!
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execute "normal!" . (endcol - currcol) . "l"
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endif
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endif " a:0
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endif " a:mode != "o" && etc.
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return 0
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endfun
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" Example (simplified HTML patterns): if
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||
|
|
" a:groupBR = '<\(\k\+\)>:</\1>'
|
||
|
|
" a:prefix = '^.\{3}\('
|
||
|
|
" a:group = '<\(\k\+\)>:</\(\k\+\)>'
|
||
|
|
" a:suffix = '\).\{2}$'
|
||
|
|
" a:matchline = "123<tag>12" or "123</tag>12"
|
||
|
|
" then extract "tag" from a:matchline and return "<tag>:</tag>" .
|
||
|
|
fun! s:InsertRefs(groupBR, prefix, group, suffix, matchline)
|
||
|
|
if a:matchline !~ a:prefix .
|
||
|
|
\ substitute(a:group, s:notslash . '\zs:', '\\|', 'g') . a:suffix
|
||
|
|
return a:group
|
||
|
|
endif
|
||
|
|
let i = matchend(a:groupBR, s:notslash . ':')
|
||
|
|
let ini = strpart(a:groupBR, 0, i-1)
|
||
|
|
let tailBR = strpart(a:groupBR, i)
|
||
|
|
let word = s:Choose(a:group, a:matchline, ":", "", a:prefix, a:suffix,
|
||
|
|
\ a:groupBR)
|
||
|
|
let i = matchend(word, s:notslash . ":")
|
||
|
|
let wordBR = strpart(word, i)
|
||
|
|
let word = strpart(word, 0, i-1)
|
||
|
|
" Now, a:matchline =~ a:prefix . word . a:suffix
|
||
|
|
if wordBR != ini
|
||
|
|
let table = s:Resolve(ini, wordBR, "table")
|
||
|
|
else
|
||
|
|
" let table = "----------"
|
||
|
|
let table = ""
|
||
|
|
let d = 0
|
||
|
|
while d < 10
|
||
|
|
if tailBR =~ s:notslash . '\\' . d
|
||
|
|
" let table[d] = d
|
||
|
|
let table = table . d
|
||
|
|
else
|
||
|
|
let table = table . "-"
|
||
|
|
endif
|
||
|
|
let d = d + 1
|
||
|
|
endwhile
|
||
|
|
endif
|
||
|
|
let d = 9
|
||
|
|
while d
|
||
|
|
if table[d] != "-"
|
||
|
|
let backref = substitute(a:matchline, a:prefix.word.a:suffix,
|
||
|
|
\ '\'.table[d], "")
|
||
|
|
" Are there any other characters that should be escaped?
|
||
|
|
let backref = escape(backref, '*,:')
|
||
|
|
execute s:Ref(ini, d, "start", "len")
|
||
|
|
let ini = strpart(ini, 0, start) . backref . strpart(ini, start+len)
|
||
|
|
let tailBR = substitute(tailBR, s:notslash . '\zs\\' . d,
|
||
|
|
\ escape(backref, '\\'), 'g')
|
||
|
|
endif
|
||
|
|
let d = d-1
|
||
|
|
endwhile
|
||
|
|
if exists("b:match_debug")
|
||
|
|
if s:do_BR
|
||
|
|
let b:match_table = table
|
||
|
|
let b:match_word = word
|
||
|
|
else
|
||
|
|
let b:match_table = ""
|
||
|
|
let b:match_word = ""
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
return ini . ":" . tailBR
|
||
|
|
endfun
|
||
|
|
|
||
|
|
" Input a comma-separated list of groups with backrefs, such as
|
||
|
|
" a:groups = '\(foo\):end\1,\(bar\):end\1'
|
||
|
|
" and return a comma-separated list of groups with backrefs replaced:
|
||
|
|
" return '\(foo\):end\(foo\),\(bar\):end\(bar\)'
|
||
|
|
fun! s:ParseWords(groups)
|
||
|
|
let groups = substitute(a:groups.",", s:notslash.'\zs[,:]*,[,:]*', ',', 'g')
|
||
|
|
let groups = substitute(groups, s:notslash . '\zs:\{2,}', ':', 'g')
|
||
|
|
let parsed = ""
|
||
|
|
while groups =~ '[^,:]'
|
||
|
|
let i = matchend(groups, s:notslash . ':')
|
||
|
|
let j = matchend(groups, s:notslash . ',')
|
||
|
|
let ini = strpart(groups, 0, i-1)
|
||
|
|
let tail = strpart(groups, i, j-i-1) . ":"
|
||
|
|
let groups = strpart(groups, j)
|
||
|
|
let parsed = parsed . ini
|
||
|
|
let i = matchend(tail, s:notslash . ':')
|
||
|
|
while i != -1
|
||
|
|
" In 'if:else:endif', ini='if' and word='else' and then word='endif'.
|
||
|
|
let word = strpart(tail, 0, i-1)
|
||
|
|
let tail = strpart(tail, i)
|
||
|
|
let i = matchend(tail, s:notslash . ':')
|
||
|
|
let parsed = parsed . ":" . s:Resolve(ini, word, "word")
|
||
|
|
endwhile " Now, tail has been used up.
|
||
|
|
let parsed = parsed . ","
|
||
|
|
endwhile " groups =~ '[^,:]'
|
||
|
|
let parsed = substitute(parsed, ',$', '', '')
|
||
|
|
return parsed
|
||
|
|
endfun
|
||
|
|
|
||
|
|
" TODO I think this can be simplified and/or made more efficient.
|
||
|
|
" TODO What should I do if a:start is out of range?
|
||
|
|
" Return a regexp that matches all of a:string, such that
|
||
|
|
" matchstr(a:string, regexp) represents the match for a:pat that starts
|
||
|
|
" as close to a:start as possible, before being preferred to after, and
|
||
|
|
" ends after a:start .
|
||
|
|
" Usage:
|
||
|
|
" let regexp = s:Wholematch(getline("."), 'foo\|bar', col(".")-1)
|
||
|
|
" let i = match(getline("."), regexp)
|
||
|
|
" let j = matchend(getline("."), regexp)
|
||
|
|
" let match = matchstr(getline("."), regexp)
|
||
|
|
fun! s:Wholematch(string, pat, start)
|
||
|
|
let group = '\%(' . a:pat . '\)'
|
||
|
|
let prefix = (a:start ? '\(^.*\%<' . (a:start + 2) . 'c\)\zs' : '^')
|
||
|
|
let len = strlen(a:string)
|
||
|
|
let suffix = (a:start+1 < len ? '\(\%>'.(a:start+1).'c.*$\)\@=' : '$')
|
||
|
|
if a:string !~ prefix . group . suffix
|
||
|
|
let prefix = ''
|
||
|
|
endif
|
||
|
|
return prefix . group . suffix
|
||
|
|
endfun
|
||
|
|
|
||
|
|
" No extra arguments: s:Ref(string, d) will
|
||
|
|
" find the d'th occurrence of '\(' and return it, along with everything up
|
||
|
|
" to and including the matching '\)'.
|
||
|
|
" One argument: s:Ref(string, d, "start") returns the index of the start
|
||
|
|
" of the d'th '\(' and any other argument returns the length of the group.
|
||
|
|
" Two arguments: s:Ref(string, d, "foo", "bar") returns a string to be
|
||
|
|
" executed, having the effect of
|
||
|
|
" :let foo = s:Ref(string, d, "start")
|
||
|
|
" :let bar = s:Ref(string, d, "len")
|
||
|
|
fun! s:Ref(string, d, ...)
|
||
|
|
let len = strlen(a:string)
|
||
|
|
if a:d == 0
|
||
|
|
let start = 0
|
||
|
|
else
|
||
|
|
let cnt = a:d
|
||
|
|
let match = a:string
|
||
|
|
while cnt
|
||
|
|
let cnt = cnt - 1
|
||
|
|
let index = matchend(match, s:notslash . '\\(')
|
||
|
|
if index == -1
|
||
|
|
return ""
|
||
|
|
endif
|
||
|
|
let match = strpart(match, index)
|
||
|
|
endwhile
|
||
|
|
let start = len - strlen(match)
|
||
|
|
if a:0 == 1 && a:1 == "start"
|
||
|
|
return start - 2
|
||
|
|
endif
|
||
|
|
let cnt = 1
|
||
|
|
while cnt
|
||
|
|
let index = matchend(match, s:notslash . '\\(\|\\)') - 1
|
||
|
|
if index == -2
|
||
|
|
return ""
|
||
|
|
endif
|
||
|
|
" Increment if an open, decrement if a ')':
|
||
|
|
let cnt = cnt + (match[index]=="(" ? 1 : -1) " ')'
|
||
|
|
" let cnt = stridx('0(', match[index]) + cnt
|
||
|
|
let match = strpart(match, index+1)
|
||
|
|
endwhile
|
||
|
|
let start = start - 2
|
||
|
|
let len = len - start - strlen(match)
|
||
|
|
endif
|
||
|
|
if a:0 == 1
|
||
|
|
return len
|
||
|
|
elseif a:0 == 2
|
||
|
|
return "let " . a:1 . "=" . start . "| let " . a:2 . "=" . len
|
||
|
|
else
|
||
|
|
return strpart(a:string, start, len)
|
||
|
|
endif
|
||
|
|
endfun
|
||
|
|
|
||
|
|
" Count the number of disjoint copies of pattern in string.
|
||
|
|
" If the pattern is a literal string and contains no '0' or '1' characters
|
||
|
|
" then s:Count(string, pattern, '0', '1') should be faster than
|
||
|
|
" s:Count(string, pattern).
|
||
|
|
fun! s:Count(string, pattern, ...)
|
||
|
|
let pat = escape(a:pattern, '\\')
|
||
|
|
if a:0 > 1
|
||
|
|
let foo = substitute(a:string, '[^'.a:pattern.']', "a:1", "g")
|
||
|
|
let foo = substitute(a:string, pat, a:2, "g")
|
||
|
|
let foo = substitute(foo, '[^' . a:2 . ']', "", "g")
|
||
|
|
return strlen(foo)
|
||
|
|
endif
|
||
|
|
let result = 0
|
||
|
|
let foo = a:string
|
||
|
|
let index = matchend(foo, pat)
|
||
|
|
while index != -1
|
||
|
|
let result = result + 1
|
||
|
|
let foo = strpart(foo, index)
|
||
|
|
let index = matchend(foo, pat)
|
||
|
|
endwhile
|
||
|
|
return result
|
||
|
|
endfun
|
||
|
|
|
||
|
|
" s:Resolve('\(a\)\(b\)', '\(c\)\2\1\1\2') should return table.word, where
|
||
|
|
" word = '\(c\)\(b\)\(a\)\3\2' and table = '-32-------'. That is, the first
|
||
|
|
" '\1' in target is replaced by '\(a\)' in word, table[1] = 3, and this
|
||
|
|
" indicates that all other instances of '\1' in target are to be replaced
|
||
|
|
" by '\3'. The hard part is dealing with nesting...
|
||
|
|
" Note that ":" is an illegal character for source and target,
|
||
|
|
" unless it is preceded by "\".
|
||
|
|
fun! s:Resolve(source, target, output)
|
||
|
|
let word = a:target
|
||
|
|
let i = matchend(word, s:notslash . '\\\d') - 1
|
||
|
|
let table = "----------"
|
||
|
|
while i != -2 " There are back references to be replaced.
|
||
|
|
let d = word[i]
|
||
|
|
let backref = s:Ref(a:source, d)
|
||
|
|
" The idea is to replace '\d' with backref. Before we do this,
|
||
|
|
" replace any \(\) groups in backref with :1, :2, ... if they
|
||
|
|
" correspond to the first, second, ... group already inserted
|
||
|
|
" into backref. Later, replace :1 with \1 and so on. The group
|
||
|
|
" number w+b within backref corresponds to the group number
|
||
|
|
" s within a:source.
|
||
|
|
" w = number of '\(' in word before the current one
|
||
|
|
let w = s:Count(
|
||
|
|
\ substitute(strpart(word, 0, i-1), '\\\\', '', 'g'), '\(', '1')
|
||
|
|
let b = 1 " number of the current '\(' in backref
|
||
|
|
let s = d " number of the current '\(' in a:source
|
||
|
|
while b <= s:Count(substitute(backref, '\\\\', '', 'g'), '\(', '1')
|
||
|
|
\ && s < 10
|
||
|
|
if table[s] == "-"
|
||
|
|
if w + b < 10
|
||
|
|
" let table[s] = w + b
|
||
|
|
let table = strpart(table, 0, s) . (w+b) . strpart(table, s+1)
|
||
|
|
endif
|
||
|
|
let b = b + 1
|
||
|
|
let s = s + 1
|
||
|
|
else
|
||
|
|
execute s:Ref(backref, b, "start", "len")
|
||
|
|
let ref = strpart(backref, start, len)
|
||
|
|
let backref = strpart(backref, 0, start) . ":". table[s]
|
||
|
|
\ . strpart(backref, start+len)
|
||
|
|
let s = s + s:Count(substitute(ref, '\\\\', '', 'g'), '\(', '1')
|
||
|
|
endif
|
||
|
|
endwhile
|
||
|
|
let word = strpart(word, 0, i-1) . backref . strpart(word, i+1)
|
||
|
|
let i = matchend(word, s:notslash . '\\\d') - 1
|
||
|
|
endwhile
|
||
|
|
let word = substitute(word, s:notslash . '\zs:', '\\', 'g')
|
||
|
|
if a:output == "table"
|
||
|
|
return table
|
||
|
|
elseif a:output == "word"
|
||
|
|
return word
|
||
|
|
else
|
||
|
|
return table . word
|
||
|
|
endif
|
||
|
|
endfun
|
||
|
|
|
||
|
|
" Assume a:comma = ",". Then the format for a:patterns and a:1 is
|
||
|
|
" a:patterns = "<pat1>,<pat2>,..."
|
||
|
|
" a:1 = "<alt1>,<alt2>,..."
|
||
|
|
" If <patn> is the first pattern that matches a:string then return <patn>
|
||
|
|
" if no optional arguments are given; return <patn>,<altn> if a:1 is given.
|
||
|
|
fun! s:Choose(patterns, string, comma, branch, prefix, suffix, ...)
|
||
|
|
let tail = (a:patterns =~ a:comma."$" ? a:patterns : a:patterns . a:comma)
|
||
|
|
let i = matchend(tail, s:notslash . a:comma)
|
||
|
|
if a:0
|
||
|
|
let alttail = (a:1 =~ a:comma."$" ? a:1 : a:1 . a:comma)
|
||
|
|
let j = matchend(alttail, s:notslash . a:comma)
|
||
|
|
endif
|
||
|
|
let current = strpart(tail, 0, i-1)
|
||
|
|
if a:branch == ""
|
||
|
|
let currpat = current
|
||
|
|
else
|
||
|
|
let currpat = substitute(current, s:notslash . a:branch, '\\|', 'g')
|
||
|
|
endif
|
||
|
|
while a:string !~ a:prefix . currpat . a:suffix
|
||
|
|
let tail = strpart(tail, i)
|
||
|
|
let i = matchend(tail, s:notslash . a:comma)
|
||
|
|
if i == -1
|
||
|
|
return -1
|
||
|
|
endif
|
||
|
|
let current = strpart(tail, 0, i-1)
|
||
|
|
if a:branch == ""
|
||
|
|
let currpat = current
|
||
|
|
else
|
||
|
|
let currpat = substitute(current, s:notslash . a:branch, '\\|', 'g')
|
||
|
|
endif
|
||
|
|
if a:0
|
||
|
|
let alttail = strpart(alttail, j)
|
||
|
|
let j = matchend(alttail, s:notslash . a:comma)
|
||
|
|
endif
|
||
|
|
endwhile
|
||
|
|
if a:0
|
||
|
|
let current = current . a:comma . strpart(alttail, 0, j-1)
|
||
|
|
endif
|
||
|
|
return current
|
||
|
|
endfun
|
||
|
|
|
||
|
|
" Call this function to turn on debugging information. Every time the main
|
||
|
|
" script is run, buffer variables will be saved. These can be used directly
|
||
|
|
" or viewed using the menu items below.
|
||
|
|
if !exists(":MatchDebug")
|
||
|
|
command! -nargs=0 MatchDebug call s:Match_debug()
|
||
|
|
endif
|
||
|
|
|
||
|
|
fun! s:Match_debug()
|
||
|
|
let b:match_debug = 1 " Save debugging information.
|
||
|
|
" pat = all of b:match_words with backrefs parsed
|
||
|
|
amenu &Matchit.&pat :echo b:match_pat<CR>
|
||
|
|
" match = bit of text that is recognized as a match
|
||
|
|
amenu &Matchit.&match :echo b:match_match<CR>
|
||
|
|
" curcol = cursor column of the start of the matching text
|
||
|
|
amenu &Matchit.&curcol :echo b:match_col<CR>
|
||
|
|
" wholeBR = matching group, original version
|
||
|
|
amenu &Matchit.wh&oleBR :echo b:match_wholeBR<CR>
|
||
|
|
" iniBR = 'if' piece, original version
|
||
|
|
amenu &Matchit.ini&BR :echo b:match_iniBR<CR>
|
||
|
|
" ini = 'if' piece, with all backrefs resolved from match
|
||
|
|
amenu &Matchit.&ini :echo b:match_ini<CR>
|
||
|
|
" tail = 'else\|endif' piece, with all backrefs resolved from match
|
||
|
|
amenu &Matchit.&tail :echo b:match_tail<CR>
|
||
|
|
" fin = 'endif' piece, with all backrefs resolved from match
|
||
|
|
amenu &Matchit.&word :echo b:match_word<CR>
|
||
|
|
" '\'.d in ini refers to the same thing as '\'.table[d] in word.
|
||
|
|
amenu &Matchit.t&able :echo '0:' . b:match_table . ':9'<CR>
|
||
|
|
endfun
|
||
|
|
|
||
|
|
" Jump to the nearest unmatched "(" or "if" or "<tag>" if a:spflag == "bW"
|
||
|
|
" or the nearest unmatched "</tag>" or "endif" or ")" if a:spflag == "W".
|
||
|
|
" Return a "mark" for the original position, so that
|
||
|
|
" let m = MultiMatch("bW", "n") ... execute m
|
||
|
|
" will return to the original position. If there is a problem, do not
|
||
|
|
" move the cursor and return "", unless a count is given, in which case
|
||
|
|
" go up or down as many levels as possible and again return "".
|
||
|
|
" TODO This relies on the same patterns as % matching. It might be a good
|
||
|
|
" idea to give it its own matching patterns.
|
||
|
|
fun! s:MultiMatch(spflag, mode)
|
||
|
|
if !exists("b:match_words") || b:match_words == ""
|
||
|
|
return ""
|
||
|
|
end
|
||
|
|
let restore_options = (&ic ? "" : "no") . "ignorecase"
|
||
|
|
if exists("b:match_ignorecase")
|
||
|
|
let &ignorecase = b:match_ignorecase
|
||
|
|
endif
|
||
|
|
let startline = line(".")
|
||
|
|
let startcol = col(".")
|
||
|
|
|
||
|
|
" 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
|
||
|
|
" This part is copied and slightly modified from s:Match_wrapper().
|
||
|
|
let default = escape(&mps, '[$^.*~\\/?]') . (strlen(&mps) ? "," : "") .
|
||
|
|
\ '\/\*:\*\/,#if\%(def\)\=:#else\>:#elif\>:#endif\>'
|
||
|
|
" Allow b:match_words = "GetVimMatchWords()" .
|
||
|
|
if b:match_words =~ ":"
|
||
|
|
let match_words = b:match_words
|
||
|
|
else
|
||
|
|
execute "let match_words =" b:match_words
|
||
|
|
endif
|
||
|
|
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
|
||
|
|
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 . (strlen(s:pat)?",":"") . default,
|
||
|
|
\ '[,:]\+','\\|','g') . '\)'
|
||
|
|
if exists("b:match_debug")
|
||
|
|
let b:match_pat = s:pat
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
" Second step: figure out the patterns for searchpair()
|
||
|
|
" and save the screen, cursor position, and 'ignorecase'.
|
||
|
|
" - TODO: A lot of this is copied from s:Match_wrapper().
|
||
|
|
" - maybe even more functionality should be split off
|
||
|
|
" - into separate functions!
|
||
|
|
let cdefault = (s:pat =~ '[^,]$' ? "," : "") . default
|
||
|
|
let open = substitute(s:pat . cdefault,
|
||
|
|
\ s:notslash . '\zs:.\{-}' . s:notslash . ',', '\\),\\(', 'g')
|
||
|
|
let open = '\(' . substitute(open, s:notslash . '\zs:.*$', '\\)', '')
|
||
|
|
let close = substitute(s:pat . cdefault,
|
||
|
|
\ s:notslash . '\zs,.\{-}' . s:notslash . ':', '\\),\\(', 'g')
|
||
|
|
let close = substitute(close, '^.\{-}' . s:notslash . ':', '\\(', '') . '\)'
|
||
|
|
if exists("b:match_skip")
|
||
|
|
let skip = b:match_skip
|
||
|
|
elseif exists("b:match_comment") " backwards compatibility and testing!
|
||
|
|
let skip = "r:" . b:match_comment
|
||
|
|
else
|
||
|
|
let skip = 's:comment\|string'
|
||
|
|
endif
|
||
|
|
let skip = s:ParseSkip(skip)
|
||
|
|
" let restore_cursor = line(".") . "G" . virtcol(".") . "|"
|
||
|
|
" normal! H
|
||
|
|
" let restore_cursor = "normal!" . line(".") . "Gzt" . restore_cursor
|
||
|
|
let restore_cursor = virtcol(".") . "|"
|
||
|
|
normal! g0
|
||
|
|
let restore_cursor = line(".") . "G" . virtcol(".") . "|zs" . restore_cursor
|
||
|
|
normal! H
|
||
|
|
let restore_cursor = "normal!" . line(".") . "Gzt" . restore_cursor
|
||
|
|
execute restore_cursor
|
||
|
|
|
||
|
|
" Third step: call searchpair().
|
||
|
|
" Replace '\('--but not '\\('--with '\%(' and ',' with '\|'.
|
||
|
|
let openpat = substitute(open, '\(\\\@<!\(\\\\\)*\)\@<=\\(', '\\%(', 'g')
|
||
|
|
let openpat = substitute(openpat, ',', '\\|', 'g')
|
||
|
|
let closepat = substitute(close, '\(\\\@<!\(\\\\\)*\)\@<=\\(', '\\%(', 'g')
|
||
|
|
let closepat = substitute(closepat, ',', '\\|', 'g')
|
||
|
|
if skip =~ 'synID' && !(has("syntax") && exists("g:syntax_on"))
|
||
|
|
let skip = '0'
|
||
|
|
else
|
||
|
|
execute "if " . skip . "| let skip = '0' | endif"
|
||
|
|
endif
|
||
|
|
mark '
|
||
|
|
let level = v:count1
|
||
|
|
while level
|
||
|
|
if searchpair(openpat, '', closepat, a:spflag, skip) < 1
|
||
|
|
call s:CleanUp(restore_options, a:mode, startline, startcol)
|
||
|
|
return ""
|
||
|
|
endif
|
||
|
|
let level = level - 1
|
||
|
|
endwhile
|
||
|
|
|
||
|
|
" Restore options and return a string to restore the original position.
|
||
|
|
call s:CleanUp(restore_options, a:mode, startline, startcol)
|
||
|
|
return restore_cursor
|
||
|
|
endfun
|
||
|
|
|
||
|
|
" Search backwards for "if" or "while" or "<tag>" or ...
|
||
|
|
" and return "endif" or "endwhile" or "</tag>" or ... .
|
||
|
|
" For now, this uses b:match_words and the same script variables
|
||
|
|
" as s:Match_wrapper() . Later, it may get its own patterns,
|
||
|
|
" either from a buffer variable or passed as arguments.
|
||
|
|
" fun! s:Autocomplete()
|
||
|
|
" echo "autocomplete not yet implemented :-("
|
||
|
|
" if !exists("b:match_words") || b:match_words == ""
|
||
|
|
" return ""
|
||
|
|
" end
|
||
|
|
" let startpos = s:MultiMatch("bW")
|
||
|
|
"
|
||
|
|
" if startpos == ""
|
||
|
|
" return ""
|
||
|
|
" endif
|
||
|
|
" " - TODO: figure out whether 'if' or '<tag>' matched, and construct
|
||
|
|
" " - the appropriate closing.
|
||
|
|
" let matchline = getline(".")
|
||
|
|
" let curcol = col(".") - 1
|
||
|
|
" " - TODO: Change the s:all argument if there is a new set of match pats.
|
||
|
|
" let regexp = s:Wholematch(matchline, s:all, curcol)
|
||
|
|
" let suf = strlen(matchline) - matchend(matchline, regexp)
|
||
|
|
" let prefix = (curcol ? '^.\{' . curcol . '}\%(' : '^\%(')
|
||
|
|
" let suffix = (suf ? '\).\{' . suf . '}$' : '\)$')
|
||
|
|
" " Reconstruct the version with unresolved backrefs.
|
||
|
|
" let patBR = substitute(b:match_words.',', '[,:]*,[,:]*', ',', 'g')
|
||
|
|
" let patBR = substitute(patBR, ':\{2,}', ':', "g")
|
||
|
|
" " Now, set group and groupBR to the matching group: 'if:endif' or
|
||
|
|
" " 'while:endwhile' or whatever.
|
||
|
|
" 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
|
||
|
|
" let group = s:InsertRefs(groupBR, prefix, group, suffix, matchline)
|
||
|
|
" endif
|
||
|
|
" " let g:group = group
|
||
|
|
"
|
||
|
|
" " - TODO: Construct the closing from group.
|
||
|
|
" let fake = "end" . expand("<cword>")
|
||
|
|
" execute startpos
|
||
|
|
" return fake
|
||
|
|
" endfun
|
||
|
|
|
||
|
|
" Close all open structures. "Get the heck out of here!"
|
||
|
|
" fun! s:Gthhoh()
|
||
|
|
" let close = s:Autocomplete()
|
||
|
|
" while strlen(close)
|
||
|
|
" put=close
|
||
|
|
" let close = s:Autocomplete()
|
||
|
|
" endwhile
|
||
|
|
" endfun
|
||
|
|
|
||
|
|
" Parse special strings as typical skip arguments for searchpair():
|
||
|
|
" s:foo becomes (current syntax item) =~ foo
|
||
|
|
" S:foo becomes (current syntax item) !~ foo
|
||
|
|
" r:foo becomes (line before cursor) =~ foo
|
||
|
|
" R:foo becomes (line before cursor) !~ foo
|
||
|
|
fun! s:ParseSkip(str)
|
||
|
|
let skip = a:str
|
||
|
|
if skip[1] == ":"
|
||
|
|
if skip[0] == "s"
|
||
|
|
let skip = "synIDattr(synID(line('.'),col('.'),1),'name') =~? '" .
|
||
|
|
\ strpart(skip,2) . "'"
|
||
|
|
elseif skip[0] == "S"
|
||
|
|
let skip = "synIDattr(synID(line('.'),col('.'),1),'name') !~? '" .
|
||
|
|
\ strpart(skip,2) . "'"
|
||
|
|
elseif skip[0] == "r"
|
||
|
|
let skip = "strpart(getline('.'),0,col('.'))=~'" . strpart(skip,2). "'"
|
||
|
|
elseif skip[0] == "R"
|
||
|
|
let skip = "strpart(getline('.'),0,col('.'))!~'" . strpart(skip,2). "'"
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
return skip
|
||
|
|
endfun
|
||
|
|
|
||
|
|
let &cpo = s:save_cpo
|
||
|
|
|
||
|
|
" vim:sts=2:sw=2:
|