Created
June 7, 2014 13:59
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| setlocal foldmethod=expr | |
| setlocal foldexpr=MarkdownFold() | |
| function! MarkdownFold() | |
| let head = s:head(v:lnum) | |
| if head | |
| return head | |
| " end fold of this level when nexe and nexe line is title and nexe line is empty | |
| elseif v:lnum + 1 < line('$') && getline(v:lnum + 1) == "" && getline(v:lnum + 2) =~ '^#' | |
| return '<' . s:head(v:lnum + 2) | |
| " ignore empty line | |
| elseif getline(v:lnum) == "" | |
| return '=' | |
| " end fold of this level when next line is title | |
| elseif v:lnum != line('$') && getline(v:lnum + 1) =~ '^#' | |
| return '<' . s:head(v:lnum + 1) | |
| endif | |
| return '=' | |
| endfunction | |
| function! s:head(lnum) | |
| return strlen(matchstr(getline(a:lnum), '^#*')) | |
| endfunction |
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