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matchit.vim
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Editing: matchit.vim
" matchit.vim: (global plugin) Extended "%" matching " Last Change: 2017 Sep 15 " Maintainer: Benji Fisher PhD <benji@member.AMS.org> " Version: 1.13.3, for Vim 6.3+ " Fix from Fernando Torres included. " Improvement from Ken Takata included. " 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:patBR = "" 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 = "" if exists("b:match_ignorecase") && b:match_ignorecase != &ic let restore_options .= (&ic ? " " : " no") . "ignorecase" let &ignorecase = b:match_ignorecase endif if &ve != '' let restore_options = " ve=" . &ve . restore_options set ve= endif " 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_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 let s:last_words = match_words 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 " Reconstruct the version with unresolved backrefs. let s:patBR = substitute(match_words.',', \ s:notslash.'\zs[,:]*,[,:]*', ',', 'g') let s:patBR = substitute(s:patBR, s:notslash.'\zs:\{2,}', ':', 'g') 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 " " 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, s: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 = substitute(ini, s:notslash . '\zs\\\(:\|,\)', '\1', 'g') let mid = substitute(mid, s:notslash . '\zs\\\(:\|,\)', '\1', 'g') let fin = substitute(fin, s:notslash . '\zs\\\(:\|,\)', '\1', 'g') " searchpair() requires that these patterns avoid \(\) groups. let ini = substitute(ini, s:notslash . '\zs\\(', '\\%(', 'g') let mid = substitute(mid, s:notslash . '\zs\\(', '\\%(', 'g') let fin = substitute(fin, s:notslash . '\zs\\(', '\\%(', 'g') " Set mid. This is optimized for readability, not micro-efficiency! if a:forward && matchline =~ prefix . fin . suffix \ || !a:forward && matchline =~ prefix . ini . suffix let mid = "" endif " Set flag. This is optimized for readability, not micro-efficiency! if a:forward && matchline =~ prefix . fin . suffix \ || !a:forward && matchline !~ prefix . ini . suffix let flag = "bW" else let flag = "W" endif " Set skip. 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) if exists("b:match_debug") let b:match_ini = ini let b:match_tail = (strlen(mid) ? mid.'\|' : '') . fin endif " Fifth step: actually start moving the cursor and call searchpair(). " Later, :execute restore_cursor to get to the original screen. 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 call cursor(0, curcol + 1) " normal! 0 " if curcol " execute "normal!" . curcol . "l" " endif if skip =~ 'synID' && !(has("syntax") && exists("g:syntax_on")) let skip = "0" else execute "if " . skip . "| let skip = '0' | endif" endif let sp_return = searchpair(ini, mid, fin, flag, skip) let final_position = "call cursor(" . line(".") . "," . col(".") . ")" " Restore cursor position and original screen. execute restore_cursor normal! m' if sp_return > 0 execute final_position endif return s:CleanUp(restore_options, a:mode, startline, startcol, mid.'\|'.fin) endfun " Restore options and do some special handling for Operator-pending mode. " The optional argument is the tail of the matching group. fun! s:CleanUp(options, mode, startline, startcol, ...) if strlen(a:options) execute "set" a:options endif " Open folds, if appropriate. if a:mode != "o" if &foldopen =~ "percent" normal! zv endif " In Operator-pending mode, we want to include the whole match " (for example, d%). " This is only a problem if we end up moving in the forward direction. elseif (a:startline < line(".")) || \ (a:startline == line(".") && a:startcol < col(".")) if a:0 " Check whether the match is a single character. If not, move to the " end of the match. let matchline = getline(".") let currcol = col(".") let regexp = s:Wholematch(matchline, a:1, currcol-1) let endcol = matchend(matchline, regexp) if endcol > currcol " This is NOT off by one! call cursor(0, endcol) endif endif " a:0 endif " a:mode != "o" && etc. return 0 endfun " Example (simplified HTML patterns): if " 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 = "" if exists("b:match_ignorecase") && b:match_ignorecase != &ic let restore_options .= (&ic ? " " : " no") . "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) ? "," : "") . \ '\/\*:\*\/,#\s*if\%(def\)\=:#\s*else\>:#\s*elif\>:#\s*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 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 . (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) " save v:count1 variable, might be reset from the restore_cursor command let level = v:count1 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 ' 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 unlet s:save_cpo " vim:sts=2:sw=2:
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