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Diffstat (limited to 'ftplugin/latex-box/folding.vim')
| -rw-r--r-- | ftplugin/latex-box/folding.vim | 382 |
1 files changed, 0 insertions, 382 deletions
diff --git a/ftplugin/latex-box/folding.vim b/ftplugin/latex-box/folding.vim deleted file mode 100644 index d6f36272..00000000 --- a/ftplugin/latex-box/folding.vim +++ /dev/null @@ -1,382 +0,0 @@ -if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'latex') == -1 - -" Folding support for LaTeX - -" -" Options -" g:LatexBox_Folding - Turn on/off folding -" g:LatexBox_fold_text - Turn on/off LatexBox fold text function -" g:LatexBox_fold_preamble - Turn on/off folding of preamble -" g:LatexBox_fold_parts - Define parts (eq. appendix, frontmatter) to fold -" g:LatexBox_fold_sections - Define section levels to fold -" g:LatexBox_fold_envs - Turn on/off folding of environments -" g:LatexBox_fold_toc - Turn on/off folding of TOC -" g:LatexBox_fold_toc_levels - Set max TOC fold level -" -" {{{1 Initialize options to default values. -if !exists('g:LatexBox_Folding') - let g:LatexBox_Folding=0 -endif -if !exists('g:LatexBox_fold_text') - let g:LatexBox_fold_text=1 -endif -if !exists('g:LatexBox_fold_preamble') - let g:LatexBox_fold_preamble=1 -endif -if !exists('g:LatexBox_fold_envs') - let g:LatexBox_fold_envs=1 -endif -if !exists('g:LatexBox_fold_envs_force') - let g:LatexBox_fold_envs_force = [] -endif -if !exists('g:LatexBox_fold_parts') - let g:LatexBox_fold_parts=[ - \ "appendix", - \ "frontmatter", - \ "mainmatter", - \ "backmatter" - \ ] -endif -if !exists('g:LatexBox_fold_sections') - let g:LatexBox_fold_sections=[ - \ "part", - \ "chapter", - \ "section", - \ "subsection", - \ "subsubsection" - \ ] -endif -if !exists('g:LatexBox_fold_toc') - let g:LatexBox_fold_toc=0 -endif -if !exists('g:LatexBox_fold_toc_levels') - let g:LatexBox_fold_toc_levels=1 -endif -if !exists('g:LatexBox_fold_automatic') - let g:LatexBox_fold_automatic=1 -endif -" }}}1 - -if g:LatexBox_Folding == 0 - finish -endif - -" {{{1 Set folding options for vim -setl foldexpr=LatexBox_FoldLevel(v:lnum) -if g:LatexBox_fold_text == 1 - setl foldtext=LatexBox_FoldText() -endif -if g:LatexBox_fold_automatic == 1 - setl foldmethod=expr - - " - " The foldexpr function returns "=" for most lines, which means it can become - " slow for large files. The following is a hack that is based on this reply to - " a discussion on the Vim Developer list: - " http://permalink.gmane.org/gmane.editors.vim.devel/14100 - " - augroup FastFold - autocmd! - autocmd InsertEnter *.tex if !&diff | setlocal foldmethod=manual | endif - autocmd InsertLeave *.tex if !&diff | setlocal foldmethod=expr | endif - augroup end -else - setl foldmethod=manual -endif - -function! LatexBox_FoldOnDemand() - setl foldmethod=expr - normal! zx - setl foldmethod=manual -endfunction - -command! LatexFold call LatexBox_FoldOnDemand() - -" {{{1 LatexBox_FoldLevel help functions - -" This function parses the tex file to find the sections that are to be folded -" and their levels, and then predefines the patterns for optimized folding. -function! s:FoldSectionLevels() - " Initialize - let level = 1 - let foldsections = [] - - " If we use two or more of the *matter commands, we need one more foldlevel - let nparts = 0 - for part in g:LatexBox_fold_parts - let i = 1 - while i < line("$") - if getline(i) =~ '^\s*\\' . part . '\>' - let nparts += 1 - break - endif - let i += 1 - endwhile - if nparts > 1 - let level = 2 - break - endif - endfor - - " Combine sections and levels, but ignore unused section commands: If we - " don't use the part command, then chapter should have the highest - " level. If we don't use the chapter command, then section should be the - " highest level. And so on. - let ignore = 1 - for part in g:LatexBox_fold_sections - " For each part, check if it is used in the file. We start adding the - " part patterns to the fold sections array whenever we find one. - let partpattern = '^\s*\(\\\|% Fake\)' . part . '\>' - if ignore - let i = 1 - while i < line("$") - if getline(i) =~# partpattern - call insert(foldsections, [partpattern, level]) - let level += 1 - let ignore = 0 - break - endif - let i += 1 - endwhile - else - call insert(foldsections, [partpattern, level]) - let level += 1 - endif - endfor - - return foldsections -endfunction - -" {{{1 LatexBox_FoldLevel - -" Parse file to dynamically set the sectioning fold levels -let b:LatexBox_FoldSections = s:FoldSectionLevels() - -" Optimize by predefine common patterns -let s:notbslash = '\%(\\\@<!\%(\\\\\)*\)\@<=' -let s:notcomment = '\%(\%(\\\@<!\%(\\\\\)*\)\@<=%.*\)\@<!' -let s:envbeginpattern = s:notcomment . s:notbslash . '\\begin\s*{.\{-}}' -let s:envendpattern = s:notcomment . s:notbslash . '\\end\s*{.\{-}}' -let s:foldparts = '^\s*\\\%(' . join(g:LatexBox_fold_parts, '\|') . '\)' -let s:folded = '\(% Fake\|\\\(document\|begin\|end\|paragraph\|' - \ . 'front\|main\|back\|app\|sub\|section\|chapter\|part\)\)' - -function! LatexBox_FoldLevel(lnum) - " Check for normal lines first (optimization) - let line = getline(a:lnum) - if line !~ s:folded - return "=" - endif - - " Fold preamble - if g:LatexBox_fold_preamble == 1 - if line =~# s:notcomment . s:notbslash . '\s*\\documentclass' - return ">1" - elseif line =~# s:notcomment . s:notbslash . '\s*\\begin\s*{\s*document\s*}' - return "0" - endif - endif - - " Fold parts (\frontmatter, \mainmatter, \backmatter, and \appendix) - if line =~# s:foldparts - return ">1" - endif - - " Fold chapters and sections - for [part, level] in b:LatexBox_FoldSections - if line =~# part - return ">" . level - endif - endfor - - " Never fold \end{document} - if line =~# '^\s*\\end{document}' - return 0 - endif - - " Fold environments - if line =~# s:envbeginpattern && line =~# s:envendpattern - " If the begin and end pattern are on the same line , do not fold - return "=" - else - if line =~# s:envbeginpattern - if g:LatexBox_fold_envs == 1 - return "a1" - else - let env = matchstr(line,'\\begin\*\?{\zs\w*\*\?\ze}') - if index(g:LatexBox_fold_envs_force, env) >= 0 - return "a1" - else - return "=" - endif - endif - elseif line =~# s:envendpattern - if g:LatexBox_fold_envs == 1 - return "s1" - else - let env = matchstr(line,'\\end\*\?{\zs\w*\*\?\ze}') - if index(g:LatexBox_fold_envs_force, env) >= 0 - return "s1" - else - return "=" - endif - endif - endif - endif - - " Return foldlevel of previous line - return "=" -endfunction - -" {{{1 LatexBox_FoldText help functions -function! s:LabelEnv() - let i = v:foldend - while i >= v:foldstart - if getline(i) =~ '^\s*\\label' - return matchstr(getline(i), '^\s*\\label{\zs.*\ze}') - end - let i -= 1 - endwhile - return "" -endfunction - -function! s:CaptionEnv() - let i = v:foldend - while i >= v:foldstart - if getline(i) =~ '^\s*\\caption' - return matchstr(getline(i), '^\s*\\caption\(\[.*\]\)\?{\zs.\+') - end - let i -= 1 - endwhile - return "" -endfunction - -function! s:CaptionTable() - let i = v:foldstart - while i <= v:foldend - if getline(i) =~ '^\s*\\caption' - return matchstr(getline(i), '^\s*\\caption\(\[.*\]\)\?{\zs.\+') - end - let i += 1 - endwhile - return "" -endfunction - -function! s:CaptionFrame(line) - " Test simple variants first - let caption1 = matchstr(a:line,'\\begin\*\?{.*}{\zs.\+\ze}') - let caption2 = matchstr(a:line,'\\begin\*\?{.*}{\zs.\+') - - if len(caption1) > 0 - return caption1 - elseif len(caption2) > 0 - return caption2 - else - let i = v:foldstart - while i <= v:foldend - if getline(i) =~ '^\s*\\frametitle' - return matchstr(getline(i), - \ '^\s*\\frametitle\(\[.*\]\)\?{\zs.\+') - end - let i += 1 - endwhile - - return "" - endif -endfunction - -function! LatexBox_FoldText_title() - let line = getline(v:foldstart) - let title = 'Not defined' - - " Preamble - if line =~ '\s*\\documentclass' - return "Preamble" - endif - - " Parts, sections and fakesections - let sections = '\(\(sub\)*\(section\|paragraph\)\|part\|chapter\)' - let secpat1 = '^\s*\\' . sections . '\*\?\s*{' - let secpat2 = '^\s*\\' . sections . '\*\?\s*\[' - if line =~ '\\frontmatter' - let title = "Frontmatter" - elseif line =~ '\\mainmatter' - let title = "Mainmatter" - elseif line =~ '\\backmatter' - let title = "Backmatter" - elseif line =~ '\\appendix' - let title = "Appendix" - elseif line =~ secpat1 . '.*}' - let title = matchstr(line, secpat1 . '\zs.\{-}\ze}') - elseif line =~ secpat1 - let title = matchstr(line, secpat1 . '\zs.*') - elseif line =~ secpat2 . '.*\]' - let title = matchstr(line, secpat2 . '\zs.\{-}\ze\]') - elseif line =~ secpat2 - let title = matchstr(line, secpat2 . '\zs.*') - elseif line =~ 'Fake' . sections . ':' - let title = matchstr(line,'Fake' . sections . ':\s*\zs.*') - elseif line =~ 'Fake' . sections - let title = matchstr(line, 'Fake' . sections) - endif - - " Environments - if line =~ '\\begin' - " Capture environment name - let env = matchstr(line,'\\begin\*\?{\zs\w*\*\?\ze}') - - " Set caption based on type of environment - if env == 'frame' - let label = '' - let caption = s:CaptionFrame(line) - elseif env == 'table' - let label = s:LabelEnv() - let caption = s:CaptionTable() - else - let label = s:LabelEnv() - let caption = s:CaptionEnv() - endif - - " If no caption found, check for a caption comment - if caption == '' - let caption = matchstr(line,'\\begin\*\?{.*}\s*%\s*\zs.*') - endif - - " Create title based on caption and label - if caption . label == '' - let title = env - elseif label == '' - let title = printf('%-12s%s', env . ':', - \ substitute(caption, '}\s*$', '','')) - elseif caption == '' - let title = printf('%-12s%56s', env, '(' . label . ')') - else - let title = printf('%-12s%-30s %21s', env . ':', - \ strpart(substitute(caption, '}\s*$', '',''),0,34), - \ '(' . label . ')') - endif - endif - - return title -endfunction - -" {{{1 LatexBox_FoldText -function! LatexBox_FoldText() - let nlines = v:foldend - v:foldstart + 1 - let title = strpart(LatexBox_FoldText_title(), 0, 68) - let level = '' - - " Fold level - let level = strpart(repeat('-', v:foldlevel-1) . '*',0,3) - if v:foldlevel > 3 - let level = strpart(level, 1) . v:foldlevel - endif - let level = printf('%-3s', level) - - return printf('%-3s %-68s #%5d', level, title, nlines) -endfunction - -" {{{1 Footer -" vim:fdm=marker:ff=unix:ts=4:sw=4 - -endif |