Vim Markdown Folding?

Question

I just realized that VIM 7.3 has built-in support for highlighting Markdown files. Excellent. However, it doesn\'t fold on the headings.

Can any offer suggestions on

Answer 1

When I use markdown I only use the hash-style headings with space separating hashes and text. This makes the folding task a lot simpler.

I'm pretty new to Vim, so use the following at your own risk. I added the following code to my vimrc and it folds headings based on number of hashes, and it retains the syntax colouring.

function! MarkdownLevel()
    if getline(v:lnum) =~ '^# .*$'
        return ">1"
    endif
    if getline(v:lnum) =~ '^## .*$'
        return ">2"
    endif
    if getline(v:lnum) =~ '^### .*$'
        return ">3"
    endif
    if getline(v:lnum) =~ '^#### .*$'
        return ">4"
    endif
    if getline(v:lnum) =~ '^##### .*$'
        return ">5"
    endif
    if getline(v:lnum) =~ '^###### .*$'
        return ">6"
    endif
    return "=" 
endfunction
au BufEnter *.md setlocal foldexpr=MarkdownLevel()  
au BufEnter *.md setlocal foldmethod=expr