" LaTeX Box motion functions
" Motion options {{{
" Opening and closing patterns
if !exists('g:LatexBox_open_pats')
let g:LatexBox_open_pats = [ '\\{','{','\\(','(','\\\[','\[',
\ '\\begin\s*{.\{-}}', '\\left\s*\%([^\\]\|\\.\|\\\a*\)']
let g:LatexBox_close_pats = [ '\\}','}','\\)',')','\\\]','\]',
\ '\\end\s*{.\{-}}', '\\right\s*\%([^\\]\|\\.\|\\\a*\)']
endif
" }}}
" HasSyntax {{{
" s:HasSyntax(syntaxName, [line], [col])
function! s:HasSyntax(syntaxName, ...)
let line = a:0 >= 1 ? a:1 : line('.')
let col = a:0 >= 2 ? a:2 : col('.')
return index(map(synstack(line, col),
\ 'synIDattr(v:val, "name") == "' . a:syntaxName . '"'),
\ 1) >= 0
endfunction
" }}}
" Search and Skip Comments {{{
" s:SearchAndSkipComments(pattern, [flags], [stopline])
function! s:SearchAndSkipComments(pat, ...)
let flags = a:0 >= 1 ? a:1 : ''
let stopline = a:0 >= 2 ? a:2 : 0
let saved_pos = getpos('.')
" search once
let ret = search(a:pat, flags, stopline)
if ret
" do not match at current position if inside comment
let flags = substitute(flags, 'c', '', 'g')
" keep searching while in comment
while LatexBox_InComment()
let ret = search(a:pat, flags, stopline)
if !ret
break
endif
endwhile
endif
if !ret
" if no match found, restore position
call setpos('.', saved_pos)
endif
return ret
endfunction
" }}}
" Finding Matching Pair {{{
function! s:FindMatchingPair(mode)
if a:mode =~ 'h\|i'
2match none
elseif a:mode == 'v'
normal! gv
endif
if LatexBox_InComment() | return | endif
" open/close pairs (dollars signs are treated apart)
let dollar_pat = '\$'
let notbslash = '\%(\\\@<!\%(\\\\\)*\)\@<='
let notcomment = '\%(\%(\\\@<!\%(\\\\\)*\)\@<=%.*\)\@<!'
let anymatch = '\('
\ . join(g:LatexBox_open_pats + g:LatexBox_close_pats, '\|')
\ . '\|' . dollar_pat . '\)'
let lnum = line('.')
let cnum = searchpos('\A', 'cbnW', lnum)[1]
" if the previous char is a backslash
if strpart(getline(lnum), cnum-2, 1) == '\'
let cnum = cnum-1
endif
let delim = matchstr(getline(lnum), '\C^'. anymatch , cnum - 1)
if empty(delim) || strlen(delim)+cnum-1< col('.')
if a:mode =~ 'n\|v\|o'
" if not found, search forward
let cnum = match(getline(lnum), '\C'. anymatch , col('.') - 1) + 1
if cnum == 0 | return | endif
call cursor(lnum, cnum)
let delim = matchstr(getline(lnum), '\C^'. anymatch , cnum - 1)
elseif a:mode =~ 'i'
" if not found, move one char bacward and search
let cnum = searchpos('\A', 'bnW', lnum)[1]
" if the previous char is a backslash
if strpart(getline(lnum), cnum-2, 1) == '\'
let cnum = cnum-1
endif
let delim = matchstr(getline(lnum), '\C^'. anymatch , cnum - 1)
if empty(delim) || strlen(delim)+cnum< col('.') | return | endif
elseif a:mode =~ 'h'
return
endif
endif
if delim =~ '^\$'
" match $-pairs
" check if next character is in inline math
let [lnum0, cnum0] = searchpos('.', 'nW')
if lnum0 && s:HasSyntax('texMathZoneX', lnum0, cnum0)
let [lnum2, cnum2] = searchpos(notcomment . notbslash. dollar_pat, 'nW', line('w$')*(a:mode =~ 'h\|i') , 200)
else
let [lnum2, cnum2] = searchpos('\%(\%'. lnum . 'l\%' . cnum . 'c\)\@!'. notcomment . notbslash . dollar_pat, 'bnW', line('w0')*(a:mode =~ 'h\|i') , 200)
endif
if a:mode =~ 'h\|i'
execute '2match MatchParen /\%(\%' . lnum . 'l\%' . cnum . 'c\$' . '\|\%' . lnum2 . 'l\%' . cnum2 . 'c\$\)/'
elseif a:mode =~ 'n\|v\|o'
call cursor(lnum2,cnum2)
endif
else
" match other pairs
for i in range(len(g:LatexBox_open_pats))
let open_pat = notbslash . g:LatexBox_open_pats[i]
let close_pat = notbslash . g:LatexBox_close_pats[i]
if delim =~# '^' . open_pat
" if on opening pattern, search for closing pattern
let [lnum2, cnum2] = searchpairpos('\C' . open_pat, '', '\C'
\ . close_pat, 'nW', 'LatexBox_InComment()',
\ line('w$')*(a:mode =~ 'h\|i') , 200)
if a:mode =~ 'h\|i'
execute '2match MatchParen /\%(\%' . lnum . 'l\%' . cnum
\ . 'c' . g:LatexBox_open_pats[i] . '\|\%'
\ . lnum2 . 'l\%' . cnum2 . 'c'
\ . g:LatexBox_close_pats[i] . '\)/'
elseif a:mode =~ 'n\|v\|o'
call cursor(lnum2,cnum2)
if strlen(close_pat)>1 && a:mode =~ 'o'
call cursor(lnum2, matchend(getline('.'), '\C'
\ . close_pat, col('.')-1))
endif
endif
break
elseif delim =~# '^' . close_pat
" if on closing pattern, search for opening pattern
let [lnum2, cnum2] = searchpairpos('\C' . open_pat, '',
\ '\C\%(\%'. lnum . 'l\%' . cnum . 'c\)\@!'
\ . close_pat, 'bnW', 'LatexBox_InComment()',
\ line('w0')*(a:mode =~ 'h\|i') , 200)
if a:mode =~ 'h\|i'
execute '2match MatchParen /\%(\%' . lnum2 . 'l\%' . cnum2
\ . 'c' . g:LatexBox_open_pats[i] . '\|\%'
\ . lnum . 'l\%' . cnum . 'c'
\ . g:LatexBox_close_pats[i] . '\)/'
elseif a:mode =~ 'n\|v\|o'
call cursor(lnum2,cnum2)
endif
break
endif
endfor
endif
endfunction
" Allow to disable functionality if desired
if !exists('g:LatexBox_loaded_matchparen')
" Disable matchparen autocommands
augroup LatexBox_HighlightPairs
autocmd BufEnter * if !exists("g:loaded_matchparen") || !g:loaded_matchparen | runtime plugin/matchparen.vim | endif
autocmd BufEnter *.tex 3match none | unlet! g:loaded_matchparen | au! matchparen
autocmd! CursorMoved *.tex call s:FindMatchingPair('h')
autocmd! CursorMovedI *.tex call s:FindMatchingPair('i')
augroup END
endif
" Use LatexBox'es FindMatchingPair as '%' (enable jump between e.g. $'s)
nnoremap <silent> <Plug>LatexBox_JumpToMatch :call <SID>FindMatchingPair('n')<CR>
vnoremap <silent> <Plug>LatexBox_JumpToMatch :call <SID>FindMatchingPair('v')<CR>
onoremap <silent> <Plug>LatexBox_JumpToMatch v:call <SID>FindMatchingPair('o')<CR>
" }}}
" select inline math {{{
" s:SelectInlineMath(seltype)
" where seltype is either 'inner' or 'outer'
function! s:SelectInlineMath(seltype)
let dollar_pat = '\\\@<!\$'
if s:HasSyntax('texMathZoneX')
call s:SearchAndSkipComments(dollar_pat, 'cbW')
elseif getline('.')[col('.') - 1] == '$'
call s:SearchAndSkipComments(dollar_pat, 'bW')
else
return
endif
if a:seltype == 'inner'
normal! l
endif
if visualmode() ==# 'V'
normal! V
else
normal! v
endif
call s:SearchAndSkipComments(dollar_pat, 'W')
if a:seltype == 'inner'
normal! h
endif
endfunction
vnoremap <silent> <Plug>LatexBox_SelectInlineMathInner
\ :<C-U>call <SID>SelectInlineMath('inner')<CR>
vnoremap <silent> <Plug>LatexBox_SelectInlineMathOuter
\ :<C-U>call <SID>SelectInlineMath('outer')<CR>
" }}}
" select current environment {{{
function! s:SelectCurrentEnv(seltype)
let [env, lnum, cnum, lnum2, cnum2] = LatexBox_GetCurrentEnvironment(1)
call cursor(lnum, cnum)
if a:seltype == 'inner'
if env =~ '^\'
call search('\\.\_\s*\S', 'eW')
else
call search('}\(\_\s*\[\_[^]]*\]\)\?\_\s*\S', 'eW')
endif
endif
if visualmode() ==# 'V'
normal! V
else
normal! v
endif
call cursor(lnum2, cnum2)
if a:seltype == 'inner'
call search('\S\_\s*', 'bW')
else
if env =~ '^\'
normal! l
else
call search('}', 'eW')
endif
endif
endfunction
vnoremap <silent> <Plug>LatexBox_SelectCurrentEnvInner :<C-U>call <SID>SelectCurrentEnv('inner')<CR>
vnoremap <silent> <Plug>LatexBox_SelectCurrentEnvOuter :<C-U>call <SID>SelectCurrentEnv('outer')<CR>
" }}}
" Jump to the next braces {{{
"
function! LatexBox_JumpToNextBraces(backward)
let flags = ''
if a:backward
normal h
let flags .= 'b'
else
let flags .= 'c'
endif
if search('[][}{]', flags) > 0
normal l
endif
let prev = strpart(getline('.'), col('.') - 2, 1)
let next = strpart(getline('.'), col('.') - 1, 1)
if next =~ '[]}]' && prev !~ '[][{}]'
return "\<Right>"
else
return ''
endif
endfunction
" }}}
" Table of Contents {{{
" Special UTF-8 conversion
function! s:ConvertBack(line)
let line = a:line
if exists('g:LatexBox_plaintext_toc')
"
" Substitute stuff like '\IeC{\"u}' to plain 'u'
"
let line = substitute(line, '\\IeC\s*{\\.\(.\)}', '\1', 'g')
else
"
" Substitute stuff like '\IeC{\"u}' to corresponding unicode symbols
"
for [pat, symbol] in s:ConvBackPats
let line = substitute(line, pat, symbol, 'g')
endfor
endif
return line
endfunction
function! s:ReadTOC(auxfile, texfile, ...)
let texfile = a:texfile
let prefix = fnamemodify(a:auxfile, ':p:h')
if a:0 != 2
let toc = []
let fileindices = { texfile : [] }
else
let toc = a:1
let fileindices = a:2
let fileindices[ texfile ] = []
endif
for line in readfile(a:auxfile)
let included = matchstr(line, '^\\@input{\zs[^}]*\ze}')
if included != ''
" append the input TOX to `toc` and `fileindices`
let newaux = prefix . '/' . included
let newtex = fnamemodify(newaux, ':r') . '.tex'
call s:ReadTOC(newaux, newtex, toc, fileindices)
continue
endif
" Parse statements like:
" \@writefile{toc}{\contentsline {section}{\numberline {secnum}Section Title}{pagenumber}}
" \@writefile{toc}{\contentsline {section}{\tocsection {}{1}{Section Title}}{pagenumber}}
" \@writefile{toc}{\contentsline {section}{\numberline {secnum}Section Title}{pagenumber}{otherstuff}}
let line = matchstr(line,
\ '\\@writefile{toc}{\\contentsline\s*\zs.*\ze}\s*$')
if empty(line)
continue
endif
let tree = LatexBox_TexToTree(s:ConvertBack(line))
if len(tree) < 3
" unknown entry type: just skip it
continue
endif
" parse level
let level = tree[0][0]
" parse page
if !empty(tree[2])
let page = tree[2][0]
else
let page = ''
endif
" parse section number
let secnum = ''
let tree = tree[1]
if len(tree) > 3 && empty(tree[1])
call remove(tree, 1)
endif
if len(tree) > 1 && type(tree[0]) == type("") && tree[0] =~ '^\\\(\(chapter\)\?numberline\|tocsection\)'
let secnum = LatexBox_TreeToTex(tree[1])
let secnum = substitute(secnum, '\\\S\+\s', '', 'g')
let secnum = substitute(secnum, '\\\S\+{\(.\{-}\)}', '\1', 'g')
let secnum = substitute(secnum, '^{\+\|}\+$', '', 'g')
call remove(tree, 1)
endif
" parse section title
let text = LatexBox_TreeToTex(tree)
let text = substitute(text, '^{\+\|}\+$', '', 'g')
let text = substitute(text, '\m^\\\(no\)\?\(chapter\)\?numberline\s*', '', '')
let text = substitute(text, '\*', '', 'g')
" add TOC entry
call add(fileindices[texfile], len(toc))
call add(toc, {'file': texfile,
\ 'level': level,
\ 'number': secnum,
\ 'text': text,
\ 'page': page})
endfor
return [toc, fileindices]
endfunction
function! LatexBox_TOC(...)
" Check if window already exists
let winnr = bufwinnr(bufnr('LaTeX TOC'))
" Two types of splits, horizontal and vertical
let l:hori = "new"
let l:vert = "vnew"
" Set General Vars and initialize size
let l:type = g:LatexBox_split_type
let l:size = 10
" Size detection
if l:type == l:hori
let l:size = g:LatexBox_split_length
elseif l:type == l:vert
let l:size = g:LatexBox_split_width
endif
if winnr >= 0
if a:0 == 0
silent execute winnr . 'wincmd w'
else
" Supplying an argument to this function causes toggling instead
" of jumping to the TOC window
if g:LatexBox_split_resize
silent exe "set columns-=" . l:size
endif
silent execute 'bwipeout' . bufnr('LaTeX TOC')
endif
return
endif
" Read TOC
let [toc, fileindices] = s:ReadTOC(LatexBox_GetAuxFile(),
\ LatexBox_GetMainTexFile())
let calling_buf = bufnr('%')
" Find closest section in current buffer
let closest_index = s:FindClosestSection(toc,fileindices)
" Create TOC window and set local settings
if g:LatexBox_split_resize
silent exe "set columns+=" . l:size
endif
silent exe g:LatexBox_split_side l:size . l:type . ' LaTeX\ TOC'
let b:toc = toc
let b:toc_numbers = 1
let b:calling_win = bufwinnr(calling_buf)
setlocal filetype=latextoc
" Add TOC entries and jump to the closest section
for entry in toc
call append('$', entry['number'] . "\t" . entry['text'])
endfor
if !g:LatexBox_toc_hidehelp
call append('$', "")
call append('$', "<Esc>/q: close")
call append('$', "<Space>: jump")
call append('$', "<Enter>: jump and close")
call append('$', "s: hide numbering")
endif
0delete _
execute 'normal! ' . (closest_index + 1) . 'G'
" Lock buffer
setlocal nomodifiable
endfunction
" Binary search for the closest section
" return the index of the TOC entry
function! s:FindClosestSection(toc, fileindices)
let file = expand('%:p')
if !has_key(a:fileindices, file)
return 0
endif
let imax = len(a:fileindices[file])
if imax > 0
let imin = 0
while imin < imax - 1
let i = (imax + imin) / 2
let tocindex = a:fileindices[file][i]
let entry = a:toc[tocindex]
let titlestr = entry['text']
let titlestr = escape(titlestr, '\')
let titlestr = substitute(titlestr, ' ', '\\_\\s\\+', 'g')
let [lnum, cnum] = searchpos('\\' . entry['level'] . '\_\s*{' . titlestr . '}', 'nW')
if lnum
let imax = i
else
let imin = i
endif
endwhile
return a:fileindices[file][imin]
else
return 0
endif
endfunction
let s:ConvBackPats = map([
\ ['\\''A}' , 'Á'],
\ ['\\`A}' , 'À'],
\ ['\\^A}' , 'À'],
\ ['\\¨A}' , 'Ä'],
\ ['\\"A}' , 'Ä'],
\ ['\\''a}' , 'á'],
\ ['\\`a}' , 'à'],
\ ['\\^a}' , 'à'],
\ ['\\¨a}' , 'ä'],
\ ['\\"a}' , 'ä'],
\ ['\\''E}' , 'É'],
\ ['\\`E}' , 'È'],
\ ['\\^E}' , 'Ê'],
\ ['\\¨E}' , 'Ë'],
\ ['\\"E}' , 'Ë'],
\ ['\\''e}' , 'é'],
\ ['\\`e}' , 'è'],
\ ['\\^e}' , 'ê'],
\ ['\\¨e}' , 'ë'],
\ ['\\"e}' , 'ë'],
\ ['\\''I}' , 'Í'],
\ ['\\`I}' , 'Î'],
\ ['\\^I}' , 'Ì'],
\ ['\\¨I}' , 'Ï'],
\ ['\\"I}' , 'Ï'],
\ ['\\''i}' , 'í'],
\ ['\\`i}' , 'î'],
\ ['\\^i}' , 'ì'],
\ ['\\¨i}' , 'ï'],
\ ['\\"i}' , 'ï'],
\ ['\\''{\?\\i }' , 'í'],
\ ['\\''O}' , 'Ó'],
\ ['\\`O}' , 'Ò'],
\ ['\\^O}' , 'Ô'],
\ ['\\¨O}' , 'Ö'],
\ ['\\"O}' , 'Ö'],
\ ['\\''o}' , 'ó'],
\ ['\\`o}' , 'ò'],
\ ['\\^o}' , 'ô'],
\ ['\\¨o}' , 'ö'],
\ ['\\"o}' , 'ö'],
\ ['\\''U}' , 'Ú'],
\ ['\\`U}' , 'Ù'],
\ ['\\^U}' , 'Û'],
\ ['\\¨U}' , 'Ü'],
\ ['\\"U}' , 'Ü'],
\ ['\\''u}' , 'ú'],
\ ['\\`u}' , 'ù'],
\ ['\\^u}' , 'û'],
\ ['\\¨u}' , 'ü'],
\ ['\\"u}' , 'ü'],
\ ['\\`N}' , 'Ǹ'],
\ ['\\\~N}' , 'Ñ'],
\ ['\\''n}' , 'ń'],
\ ['\\`n}' , 'ǹ'],
\ ['\\\~n}' , 'ñ'],
\], '[''\C\(\\IeC\s*{\)\?'' . v:val[0], v:val[1]]')
" }}}
" TOC Command {{{
command! LatexTOC call LatexBox_TOC()
command! LatexTOCToggle call LatexBox_TOC(1)
" }}}
" vim:fdm=marker:ff=unix:noet:ts=4:sw=4