diff options
Diffstat (limited to 'ftplugin/latex-box/folding.vim')
| -rw-r--r-- | ftplugin/latex-box/folding.vim | 115 |
1 files changed, 75 insertions, 40 deletions
diff --git a/ftplugin/latex-box/folding.vim b/ftplugin/latex-box/folding.vim index badfc137..4fe13bc8 100644 --- a/ftplugin/latex-box/folding.vim +++ b/ftplugin/latex-box/folding.vim @@ -1,29 +1,22 @@ " Folding support for LaTeX + " " Options -" g:LatexBox_Folding - Turn on/off folding -" 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_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 Set options -if exists('g:LatexBox_Folding') && g:LatexBox_Folding == 1 - setl foldmethod=expr - setl foldexpr=LatexBox_FoldLevel(v:lnum) - setl foldtext=LatexBox_FoldText() - " - " 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 setlocal foldmethod=manual - autocmd InsertLeave *.tex setlocal foldmethod=expr - augroup end +" {{{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 @@ -57,7 +50,45 @@ 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 setlocal foldmethod=manual + autocmd InsertLeave *.tex setlocal foldmethod=expr + 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 @@ -137,9 +168,9 @@ function! LatexBox_FoldLevel(lnum) " Fold preamble if g:LatexBox_fold_preamble == 1 - if line =~# '\s*\\documentclass' + if line =~# s:notcomment . s:notbslash . '\s*\\documentclass' return ">1" - elseif line =~# '^\s*\\begin\s*{\s*document\s*}' + elseif line =~# s:notcomment . s:notbslash . '\s*\\begin\s*{\s*document\s*}' return "0" endif endif @@ -247,24 +278,13 @@ function! s:CaptionFrame(line) endif endfunction -" {{{1 LatexBox_FoldText -function! LatexBox_FoldText() - " Initialize +function! LatexBox_FoldText_title() let line = getline(v:foldstart) - let nlines = v:foldend - v:foldstart + 1 - let level = '' let title = 'Not defined' - " 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) - " Preamble if line =~ '\s*\\documentclass' - let title = "Preamble" + return "Preamble" endif " Parts, sections and fakesections @@ -280,11 +300,11 @@ function! LatexBox_FoldText() elseif line =~ '\\appendix' let title = "Appendix" elseif line =~ secpat1 . '.*}' - let title = matchstr(line, secpat1 . '\zs.*\ze}') + 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\]') + let title = matchstr(line, secpat2 . '\zs.\{-}\ze\]') elseif line =~ secpat2 let title = matchstr(line, secpat2 . '\zs.*') elseif line =~ 'Fake' . sections . ':' @@ -330,7 +350,22 @@ function! LatexBox_FoldText() endif endif - let title = strpart(title, 0, 68) + 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 |