"
" original version from Steve Losh's gist: https://gist.github.com/1038710
-func! Foldexpr_markdown(lnum)
- if (a:lnum == 1)
- let l0 = ''
- else
- let l0 = getline(a:lnum-1)
- endif
+function! s:is_mkdCode(lnum)
+ let name = synIDattr(synID(a:lnum, 1, 0), 'name')
+ return (name =~ '^mkd\%(Code$\|Snippet\)' || name != '' && name !~ '^\%(mkd\|html\)')
+endfunction
- let l1 = getline(a:lnum)
-
- let l2 = getline(a:lnum+1)
-
- if l2 =~ '^==\+\s*'
- " next line is underlined (level 1)
- return '>1'
- elseif l2 =~ '^--\+\s*'
- " next line is underlined (level 2)
- return '>2'
- elseif l1 =~ '^#'
- " don't include the section title in the fold
- return '-1'
- elseif l0 =~ '^#'
- " current line starts with hashes
- return '>'.matchend(l0, '^#\+')
- else
- " keep previous foldlevel
- return '='
- endif
-endfunc
+if get(g:, "vim_markdown_folding_style_pythonic", 0)
+ function! Foldexpr_markdown(lnum)
+ let l1 = getline(a:lnum)
+ " keep track of fenced code blocks
+ if l1 =~ '````*' || l1 =~ '\~\~\~\~*'
+ if b:fenced_block == 0
+ let b:fenced_block = 1
+ elseif b:fenced_block == 1
+ let b:fenced_block = 0
+ endif
+ elseif g:vim_markdown_frontmatter == 1
+ if b:front_matter == 1 && a:lnum > 2
+ let l0 = getline(a:lnum-1)
+ if l0 == '---'
+ let b:front_matter = 0
+ endif
+ elseif a:lnum == 1
+ if l1 == '---'
+ let b:front_matter = 1
+ endif
+ endif
+ endif
+
+ if b:fenced_block == 1 || b:front_matter == 1
+ if a:lnum == 1
+ " fold any 'preamble'
+ return '>1'
+ else
+ " keep previous foldlevel
+ return '='
+ endif
+ endif
+
+ let l2 = getline(a:lnum+1)
+ if l2 =~ '^==\+\s*' && !s:is_mkdCode(a:lnum+1)
+ " next line is underlined (level 1)
+ return '>0'
+ elseif l2 =~ '^--\+\s*' && !s:is_mkdCode(a:lnum+1)
+ " next line is underlined (level 2)
+ return '>1'
+ endif
+
+ if l1 =~ '^#' && !s:is_mkdCode(a:lnum)
+ " current line starts with hashes
+ return '>'.(matchend(l1, '^#\+') - 1)
+ elseif a:lnum == 1
+ " fold any 'preamble'
+ return '>1'
+ else
+ " keep previous foldlevel
+ return '='
+ endif
+ endfunction
+
+ function! Foldtext_markdown()
+ let line = getline(v:foldstart)
+ let has_numbers = &number || &relativenumber
+ let nucolwidth = &fdc + has_numbers * &numberwidth
+ let windowwidth = winwidth(0) - nucolwidth - 6
+ let foldedlinecount = v:foldend - v:foldstart
+ let line = strpart(line, 0, windowwidth - 2 -len(foldedlinecount))
+ let line = substitute(line, '\%("""\|''''''\)', '', '')
+ let fillcharcount = windowwidth - len(line) - len(foldedlinecount) + 1
+ return line . ' ' . repeat("-", fillcharcount) . ' ' . foldedlinecount
+ endfunction
+else
+ function! Foldexpr_markdown(lnum)
+ if (a:lnum == 1)
+ let l0 = ''
+ else
+ let l0 = getline(a:lnum-1)
+ endif
+
+ " keep track of fenced code blocks
+ if l0 =~ '````*' || l0 =~ '\~\~\~\~*'
+ if b:fenced_block == 0
+ let b:fenced_block = 1
+ elseif b:fenced_block == 1
+ let b:fenced_block = 0
+ endif
+ elseif g:vim_markdown_frontmatter == 1
+ if b:front_matter == 1
+ if l0 == '---'
+ let b:front_matter = 0
+ endif
+ elseif a:lnum == 2
+ if l0 == '---'
+ let b:front_matter = 1
+ endif
+ endif
+ endif
+ if b:fenced_block == 1 || b:front_matter == 1
+ " keep previous foldlevel
+ return '='
+ endif
+
+ let l2 = getline(a:lnum+1)
+ if l2 =~ '^==\+\s*' && !s:is_mkdCode(a:lnum+1)
+ " next line is underlined (level 1)
+ return '>1'
+ elseif l2 =~ '^--\+\s*' && !s:is_mkdCode(a:lnum+1)
+ " next line is underlined (level 2)
+ if s:vim_markdown_folding_level >= 2
+ return '>1'
+ else
+ return '>2'
+ endif
+ endif
+
+ let l1 = getline(a:lnum)
+ if l1 =~ '^#' && !s:is_mkdCode(a:lnum)
+ " fold level according to option
+ let l:level = matchend(l1, '^#\+')
+ if s:vim_markdown_folding_level == 1 || l:level > s:vim_markdown_folding_level
+ return -1
+ else
+ " headers are not folded
+ return 0
+ endif
+ endif
+
+ if l0 =~ '^#' && !s:is_mkdCode(a:lnum-1)
+ " current line starts with hashes
+ return '>'.matchend(l0, '^#\+')
+ else
+ " fold here because of setext headers
+ return '='
+ endif
+ endfunction
+endif
+
+
+let b:fenced_block = 0
+let b:front_matter = 0
+let s:vim_markdown_folding_level = get(g:, "vim_markdown_folding_level", 1)
if !get(g:, "vim_markdown_folding_disabled", 0)
- setlocal foldexpr=Foldexpr_markdown(v:lnum)
- setlocal foldmethod=expr
+ setlocal foldexpr=Foldexpr_markdown(v:lnum)
+ setlocal foldmethod=expr
+ if get(g:, "vim_markdown_folding_style_pythonic", 0)
+ setlocal foldtext=Foldtext_markdown()
+ endif
endif
projects / etc / vim.git / blobdiff