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Major update
This commit is contained in:
Adam Stankiewicz
@@ -1,29 +1,22 @@
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" Folding support for LaTeX
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"
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" Options
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" g:LatexBox_Folding - Turn on/off folding
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" g:LatexBox_fold_preamble - Turn on/off folding of preamble
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" g:LatexBox_fold_parts - Define parts (eq. appendix, frontmatter) to fold
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" g:LatexBox_fold_sections - Define section levels to fold
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" g:LatexBox_fold_envs - Turn on/off folding of environments
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" g:LatexBox_Folding - Turn on/off folding
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" g:LatexBox_fold_text - Turn on/off LatexBox fold text function
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" g:LatexBox_fold_preamble - Turn on/off folding of preamble
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" g:LatexBox_fold_parts - Define parts (eq. appendix, frontmatter) to fold
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" g:LatexBox_fold_sections - Define section levels to fold
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" g:LatexBox_fold_envs - Turn on/off folding of environments
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" g:LatexBox_fold_toc - Turn on/off folding of TOC
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" g:LatexBox_fold_toc_levels - Set max TOC fold level
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"
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" {{{1 Set options
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if exists('g:LatexBox_Folding') && g:LatexBox_Folding == 1
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setl foldmethod=expr
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setl foldexpr=LatexBox_FoldLevel(v:lnum)
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setl foldtext=LatexBox_FoldText()
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"
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" The foldexpr function returns "=" for most lines, which means it can become
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" slow for large files. The following is a hack that is based on this reply to
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" a discussion on the Vim Developer list:
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" http://permalink.gmane.org/gmane.editors.vim.devel/14100
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"
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augroup FastFold
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autocmd!
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autocmd InsertEnter *.tex setlocal foldmethod=manual
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autocmd InsertLeave *.tex setlocal foldmethod=expr
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augroup end
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" {{{1 Initialize options to default values.
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if !exists('g:LatexBox_Folding')
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let g:LatexBox_Folding=0
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endif
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if !exists('g:LatexBox_fold_text')
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let g:LatexBox_fold_text=1
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endif
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if !exists('g:LatexBox_fold_preamble')
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let g:LatexBox_fold_preamble=1
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@@ -57,7 +50,45 @@ endif
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if !exists('g:LatexBox_fold_toc_levels')
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let g:LatexBox_fold_toc_levels=1
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endif
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if !exists('g:LatexBox_fold_automatic')
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let g:LatexBox_fold_automatic=1
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endif
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" }}}1
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if g:LatexBox_Folding == 0
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finish
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endif
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" {{{1 Set folding options for vim
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setl foldexpr=LatexBox_FoldLevel(v:lnum)
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if g:LatexBox_fold_text == 1
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setl foldtext=LatexBox_FoldText()
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endif
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if g:LatexBox_fold_automatic == 1
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setl foldmethod=expr
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"
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" The foldexpr function returns "=" for most lines, which means it can become
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" slow for large files. The following is a hack that is based on this reply to
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" a discussion on the Vim Developer list:
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" http://permalink.gmane.org/gmane.editors.vim.devel/14100
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"
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augroup FastFold
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autocmd!
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autocmd InsertEnter *.tex setlocal foldmethod=manual
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autocmd InsertLeave *.tex setlocal foldmethod=expr
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augroup end
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else
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setl foldmethod=manual
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endif
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function! LatexBox_FoldOnDemand()
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setl foldmethod=expr
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normal! zx
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setl foldmethod=manual
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endfunction
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command! LatexFold call LatexBox_FoldOnDemand()
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" {{{1 LatexBox_FoldLevel help functions
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@@ -137,9 +168,9 @@ function! LatexBox_FoldLevel(lnum)
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" Fold preamble
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if g:LatexBox_fold_preamble == 1
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if line =~# '\s*\\documentclass'
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if line =~# s:notcomment . s:notbslash . '\s*\\documentclass'
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return ">1"
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elseif line =~# '^\s*\\begin\s*{\s*document\s*}'
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elseif line =~# s:notcomment . s:notbslash . '\s*\\begin\s*{\s*document\s*}'
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return "0"
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endif
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endif
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@@ -247,24 +278,13 @@ function! s:CaptionFrame(line)
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endif
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endfunction
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" {{{1 LatexBox_FoldText
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function! LatexBox_FoldText()
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" Initialize
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function! LatexBox_FoldText_title()
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let line = getline(v:foldstart)
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let nlines = v:foldend - v:foldstart + 1
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let level = ''
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let title = 'Not defined'
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" Fold level
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let level = strpart(repeat('-', v:foldlevel-1) . '*',0,3)
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if v:foldlevel > 3
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let level = strpart(level, 1) . v:foldlevel
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endif
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let level = printf('%-3s', level)
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" Preamble
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if line =~ '\s*\\documentclass'
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let title = "Preamble"
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return "Preamble"
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endif
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" Parts, sections and fakesections
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@@ -280,11 +300,11 @@ function! LatexBox_FoldText()
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elseif line =~ '\\appendix'
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let title = "Appendix"
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elseif line =~ secpat1 . '.*}'
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let title = matchstr(line, secpat1 . '\zs.*\ze}')
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let title = matchstr(line, secpat1 . '\zs.\{-}\ze}')
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elseif line =~ secpat1
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let title = matchstr(line, secpat1 . '\zs.*')
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elseif line =~ secpat2 . '.*\]'
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let title = matchstr(line, secpat2 . '\zs.*\ze\]')
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let title = matchstr(line, secpat2 . '\zs.\{-}\ze\]')
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elseif line =~ secpat2
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let title = matchstr(line, secpat2 . '\zs.*')
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elseif line =~ 'Fake' . sections . ':'
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@@ -330,7 +350,22 @@ function! LatexBox_FoldText()
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endif
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endif
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let title = strpart(title, 0, 68)
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return title
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endfunction
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" {{{1 LatexBox_FoldText
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function! LatexBox_FoldText()
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let nlines = v:foldend - v:foldstart + 1
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let title = strpart(LatexBox_FoldText_title(), 0, 68)
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let level = ''
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" Fold level
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let level = strpart(repeat('-', v:foldlevel-1) . '*',0,3)
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if v:foldlevel > 3
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let level = strpart(level, 1) . v:foldlevel
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endif
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let level = printf('%-3s', level)
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return printf('%-3s %-68s #%5d', level, title, nlines)
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endfunction
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