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- " matchit.vim: (global plugin) Extended "%" matching
- " Last Change: August 28, 2001
- " Maintainer: Benji Fisher PhD <benji@member.AMS.org>
- " Version: 1.1
-
- " 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, Mark Collett, Stephen Wall,
- " 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.
- " TODO: Maybe I should add a menu so that people will actually use some of
- " the features that I have implemented.
-
- " 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> % :<C-U>call <SID>Match_wrapper('',1,'o') <CR>
- onoremap <silent> g% :<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>
- vnoremap [% <Esc>[%m'gv``
- vnoremap ]% <Esc>]%m'gv``
- onoremap <silent> [% :<C-U>call <SID>MultiMatch("bW", "o") <CR>
- onoremap <silent> ]% :<C-U>call <SID>MultiMatch("W", "o") <CR>
-
- " 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!"
-
- " Highlight group for error messages. The user may choose to set this
- " to be invisible.
- hi link MatchError WarningMsg
-
- let s:notslash = '\\\@<!\%(\\\\\)*'
-
- function! s:Match_wrapper(word, forward, mode) range
- " 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
- " Use default behavior if called with a count or if no patterns are defined.
- if v:count
- exe "normal! " . v:count . "%"
- return
- elseif !exists("b:match_words") || b:match_words == ""
- silent! normal! %
- return
- 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
- " Thanks to Preben "Peppe" Guldberg and Bram Moolenaar for this suggestion!
- if (b:match_words != s:last_words) || (&mps != s:last_mps) ||
- \ exists("b:match_debug")
- let s:last_words = b:match_words
- let s:last_mps = &mps
- if b:match_words !~ s:notslash . '\\\d'
- let s:do_BR = 0
- let s:pat = b:match_words
- else
- let s:do_BR = 1
- let s:pat = s:ParseWords(b:match_words)
- endif
- " 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) ? "," : "") .
- \ '\/\*:\*\/,#if\%(def\)\=:#else\>:#elif\>:#endif\>'
- " s:all = pattern with all the keywords
- let s:all = s:pat . (strlen(s:pat) ? "," : "") . default
- let s:all = substitute(s:all, 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(".")
- let startcol = col(".")
- if a:word != ''
- " word given
- if a:word !~ s:all
- echohl MatchError|echo 'Missing rule for word:"'.a:word.'"'|echohl NONE
- return
- endif
- let matchline = a:word
- let curcol = 0
- let prefix = '^\%('
- let suffix = '\)$'
- " Now the case when "word" is not given
- elseif matchend(matchline, '.*' . s:all) < startcol
- " there is no special word in this line || it ends before the cursor
- echohl MatchError | echo "No matching rule applies here" | echohl NONE
- return
- 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)
- let suf = strlen(matchline) - matchend(matchline, regexp)
- let prefix = (curcol ? '^.\{' . curcol . '}\%(' : '^\%(')
- let suffix = (suf ? '\).\{' . suf . '}$' : '\)$')
- " If the match comes from the defaults, bail out.
- if matchline !~ prefix .
- \ substitute(s:pat, s:notslash.'\zs[,:]\+', '\\|', 'g') . suffix
- norm! %
- return
- endif
- 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 variables:
- " 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(b: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.
- 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
-
- " 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)
- " 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().
- " This minimizes screen jumps and avoids using a global mark.
- let restore_cursor = line(".") . "G" . virtcol(".") . "|"
- normal! H
- let restore_cursor = "normal!" . line(".") . "Gzt" . restore_cursor
- execute restore_cursor
- " Later, :execute restore_cursor to get to the original screen.
- let restore_options = (&ic ? "" : "no") . "ignorecase"
- if exists("b:match_ignorecase")
- let &ignorecase = b:match_ignorecase
- endif
- " Instead of the next few lines, could I :execute "normal!".(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 = line(".") . "normal!" . virtcol(".") . "|"
- " Restore options, cursor position, and original screen.
- execute "set " . restore_options
- execute restore_cursor
- normal!m'
- if sp_return > 0
- execute final_position
- " Open folds, if appropriate.
- if a:mode != "o" && &foldopen =~ "percent"
- normal!zv
- endif
- endif
- 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 =~ '[^,:]'
- 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)
- if a:pat =~ '^\\%\=(.*\\)$'
- let group = a:pat
- else
- let group = '\(' . a:pat . '\)'
- endif
- let prefix = (a:start ? '\(^.\{,' . a:start . '}\)\@<=' : '^')
- let len = strlen(a:string)
- let suffix = (a:start+1 < len ? '\(.\{,'.(len-a:start-1).'}$\)\@=' : '$')
- 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, 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, 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
-
- " 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\>'
- if (b:match_words != s:last_words) || (&mps != s:last_mps) ||
- \ exists("b:match_debug")
- let s:last_words = b:match_words
- let s:last_mps = &mps
- if b:match_words !~ s:notslash . '\\\d'
- let s:do_BR = 0
- let s:pat = b:match_words
- else
- let s:do_BR = 1
- let s:pat = s:ParseWords(b: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 open = substitute(s:pat . default, ':[^,]*,', '\\),\\(', 'g')
- let open = '\(' . substitute(open, ':[^,]*$', '\\)', '')
- let close = substitute(s:pat . default, ',[^,]*:', '\\),\\(', 'g')
- let close = substitute(close, '[^,]*:', '\\(', '') . '\)'
- 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
- execute restore_cursor
- let restore_options = (&ic ? "" : "no") . "ignorecase"
- if exists("b:match_ignorecase")
- let &ignorecase = b:match_ignorecase
- endif
-
- " 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
- execute "set " . restore_options
- return ""
- endif
- let level = level - 1
- endwhile
-
- " Open folds, if appropriate.
- if a:mode != "o" && &foldopen =~ "percent"
- normal!zv
- endif
- " Restore options and return a string to restore the original position.
- execute "set " . restore_options
- 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
-
- aug Matchit
- let s:notend = '\%(\<end\s\+\)\@<!'
- au!
- " ASP: Active Server Pages (with Visual Basic Script)
- " thanks to Gontran BAERTS
- au FileType aspvbs if !exists("b:match_words") |
- \ do Matchit FileType html |
- \ let b:match_words =
- \ s:notend . '\<If\>:^\s\+\<Else\>:\<ElseIf\>:\<end\s\+\<if\>,' .
- \ s:notend . '\<Select\s\+\<Case\>:\<Case\>:\<Case\s\+\<Else\>:' .
- \ '\<End\s\+\<Select\>,' .
- \ '^\s*\<Sub\>:\<End\s\+\<Sub\>,' .
- \ '^\s*\<Function\>:\<End\s\+\<Function\>,' .
- \ '\<Class\>:\<End\s\+\<Class\>,' .
- \ '^\s*\<Do\>:\<Loop\>,' .
- \ '^\s*\<For\>:\<Next\>,' .
- \ '\<While\>:\<Wend\>,' .
- \ b:match_words
- \ | endif
- " Csh: thanks to Johannes Zellner
- " - Both foreach and end must appear alone on separate lines.
- " - The words else and endif must appear at the beginning of input lines;
- " the if must appear alone on its input line or after an else.
- " - Each case label and the default label must appear at the start of a
- " line.
- " - while and end must appear alone on their input lines.
- au FileType csh,tcsh if !exists("b:match_words") |
- \ let b:match_words =
- \ '^\s*\<if\>.*(.*).*\<then\>:'.
- \ '^\s*\<else\>\s\+\<if\>.*(.*).*\<then\>:^\s*\<else\>:'.
- \ '^\s*\<endif\>,'.
- \ '\%(^\s*\<foreach\>\s\+\S\+\|^s*\<while\>\).*(.*):'.
- \ '\<break\>:\<continue\>:^\s*\<end\>,'.
- \ '^\s*\<switch\>.*(.*):^\s*\<case\>\s\+:^\s*\<default\>:^\s*\<endsw\>'
- \ | endif
- " DTD: thanks to Johannes Zellner
- " - match <!--, --> style comments.
- " - match <! with >
- " - TODO: why does '--:--,'. not work ?
- au! FileType dtd if !exists("b:match_words") |
- \ let b:match_words =
- \ '<!--:-->,'.
- \ '<!:>'
- \ | endif
- " Entity: see XML.
- " Essbase:
- au BufNewFile,BufRead *.csc if !exists("b:match_words") |
- \ let b:match_words=
- \ '\<fix\>:\<endfix\>,' .
- \ '\<if\>:\<else\%(if\)\=\>:\<endif\>,' .
- \ '\<!loopondimensions\>\|\<!looponselected\>:\<!endloop\>'
- \ | endif
- " HTML: thanks to Johannes Zellner.
- au FileType html,jsp if !exists("b:match_words") |
- \ let b:match_ignorecase = 1 |
- \ let b:match_skip = 's:Comment' |
- \ let b:match_words = '<:>,' .
- \ '<\@<=[ou]l[^>]*\%(>\|$\):<\@<=li>:<\@<=/[ou]l>,' .
- \ '<\@<=\([^/][^ \t>]*\)[^>]*\%(>\|$\):<\@<=/\1>'
- \ | endif
- " Pascal:
- au FileType pascal if !exists("b:match_words") |
- \ let b:match_words='\<begin\>:\<end\>'
- \ | endif
- " SGML: see XML
- " Shell: thanks to Johannes Zellner
- let s:sol = '\%(;\s*\|^\s*\)\@<=' " start of line
- au FileType sh,config if !exists("b:match_words") |
- \ let b:match_words =
- \ s:sol.'if\>:' . s:sol.'elif\>:' . s:sol.'else\>:' . s:sol. 'fi\>,' .
- \ s:sol.'\%(for\|while\)\>:' . s:sol. 'done\>,' .
- \ s:sol.'case\>:' . s:sol. 'esac\>'
- \ | endif
- " RPM Spec: thanks to Max Ischenko
- au FileType spec if !exists("b:match_words") |
- \ let b:match_ignorecase = 0 | let b:match_words =
- \ '^Name:^%description:^%clean:^%setup:^%build:^%install:^%files:' .
- \ '^%package:^%preun:^%postun:^%changelog'
- \ | endif
- " Tcsh: see Csh
- " Verilog: thanks to Mark Collett
- au FileType verilog if !exists("b:match_words") |
- \ let b:match_ignorecase = 0
- \ | let b:match_words =
- \ '\<begin\>:\<end\>,'.
- \ '\<case\>\|\<casex\>\|\<casez\>:\<endcase\>,'.
- \ '\<module\>:\<endmodule\>,'.
- \ '\<function\>:\<endfunction\>,'.
- \ '`ifdef\>:`else\>:`endif\>'
- \ | endif
- " XML: thanks to Johannes Zellner and Akbar Ibrahim
- " - case sensitive
- " - don't match empty tags <fred/>
- " - match <!--, --> style comments (but not --, --)
- " - match <!, > inlined dtd's. This is not perfect, as it
- " gets confused for example by
- " <!ENTITY gt ">">
- au! FileType xml,sgml,entity if !exists("b:match_words") |
- \ let b:match_ignorecase=0 | let b:match_words =
- \ '<:>,' .
- \ '<\@<=!\[CDATA\[:]]>,'.
- \ '<\@<=!--:-->,'.
- \ '<\@<=?\k\+:?>,'.
- \ '<\@<=\([^ \t>/]\+\)\%(\s\+[^>]*\%([^/]>\|$\)\|>\|$\):<\@<=/\1>,'.
- \ '<\@<=\%([^ \t>/]\+\)\%(\s\+[^/>]*\|$\):/>'
- \ | endif
-
- aug END
-
- let &cpo = s:save_cpo
-
- " vim:sts=2:sw=2:
-