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