Phrack folding for Vim - vimrc snippet providing folding to a Phrack article in Vim

phrack-folding-for-vimrc.vim

func! PhrackLevel(elements)
    if getline(v:lnum) =~ '^--[ \d\.\d\.\d .*$'
        return ">3"
    endif
    if getline(v:lnum) =~ '^--[ \d\.\d .*$'
        return ">2"
    endif
    if getline(v:lnum) =~ '^--[ .*$'
        return ">1"
    endif
    return "="
endfunc

func! SetPhrack()
setlocal foldexpr=PhrackLevel(1)
    setlocal foldmethod=expr
endfunc