dotfiles/vim/.vim/syntax/mkd.vim

   1 " Vim syntax file
   2 " Language:     Markdown
   3 " Maintainer:   Ben Williams <benw@plasticboy.com>
   4 " URL:          http://plasticboy.com/markdown-vim-mode/
   5 " Version:      9
   6 " Last Change:  2009 May 18
   7 " Remark:       Uses HTML syntax file
   8 " Remark:       I don't do anything with angle brackets (<>) because that would too easily
   9 "               easily conflict with HTML syntax
  10 " TODO:         Handle stuff contained within stuff (e.g. headings within blockquotes)
  11
  12
  13 " Read the HTML syntax to start with
  14 if version < 600
  15   so <sfile>:p:h/html.vim
  16 else
  17   runtime! syntax/html.vim
  18   unlet b:current_syntax
  19 endif
  20
  21 if version < 600
  22   syntax clear
  23 elseif exists("b:current_syntax")
  24   finish
  25 endif
  26
  27 " don't use standard HiLink, it will not work with included syntax files
  28 if version < 508
  29   command! -nargs=+ HtmlHiLink hi link <args>
  30 else
  31   command! -nargs=+ HtmlHiLink hi def link <args>
  32 endif
  33
  34 syn spell toplevel
  35 syn case ignore
  36 syn sync linebreaks=1
  37
  38 "additions to HTML groups
  39 syn region htmlBold     start=/\\\@<!\(^\|\A\)\@=\*\@<!\*\*\*\@!/     end=/\\\@<!\*\@<!\*\*\*\@!\($\|\A\)\@=/   contains=@Spell,htmlItalic
  40 syn region htmlItalic   start=/\\\@<!\(^\|\A\)\@=\*\@<!\*\*\@!/       end=/\\\@<!\*\@<!\*\*\@!\($\|\A\)\@=/      contains=htmlBold,@Spell
  41 syn region htmlBold     start=/\\\@<!\(^\|\A\)\@=_\@<!___\@!/         end=/\\\@<!_\@<!___\@!\($\|\A\)\@=/       contains=htmlItalic,@Spell
  42 syn region htmlItalic   start=/\\\@<!\(^\|\A\)\@=_\@<!__\@!/          end=/\\\@<!_\@<!__\@!\($\|\A\)\@=/        contains=htmlBold,@Spell
  43
  44 " [link](URL) | [link][id] | [link][]
  45 syn region mkdLink matchgroup=mkdDelimiter      start="\!\?\[" end="\]\ze\s*[[(]" contains=@Spell nextgroup=mkdURL,mkdID skipwhite
  46 syn region mkdID matchgroup=mkdDelimiter        start="\["    end="\]" contained
  47 syn region mkdURL matchgroup=mkdDelimiter       start="("     end=")"  contained
  48 " mkd  inline links:           protocol   optional  user:pass@       sub/domain                 .com, .co.uk, etc      optional port   path/querystring/hash fragment
  49 "                            ------------ _____________________ --------------------------- ________________________ ----------------- __
  50 syntax match   mkdInlineURL /https\?:\/\/\(\w\+\(:\w\+\)\?@\)\?\([A-Za-z][-_0-9A-Za-z]*\.\)\{1,}\(\w\{2,}\.\?\)\{1,}\(:[0-9]\{1,5}\)\?\S*/
  51
  52 " Link definitions: [id]: URL (Optional Title)
  53 " TODO handle automatic links without colliding with htmlTag (<URL>)
  54 syn region mkdLinkDef matchgroup=mkdDelimiter   start="^ \{,3}\zs\[" end="]:" oneline nextgroup=mkdLinkDefTarget skipwhite
  55 syn region mkdLinkDefTarget start="<\?\zs\S" excludenl end="\ze[>[:space:]\n]"   contained nextgroup=mkdLinkTitle,mkdLinkDef skipwhite skipnl oneline
  56 syn region mkdLinkTitle matchgroup=mkdDelimiter start=+"+     end=+"+  contained
  57 syn region mkdLinkTitle matchgroup=mkdDelimiter start=+'+     end=+'+  contained
  58 syn region mkdLinkTitle matchgroup=mkdDelimiter start=+(+     end=+)+  contained
  59
  60 "define Markdown groups
  61 syn match  mkdLineContinue ".$" contained
  62 syn match  mkdRule      /^\s*\*\s\{0,1}\*\s\{0,1}\*$/
  63 syn match  mkdRule      /^\s*-\s\{0,1}-\s\{0,1}-$/
  64 syn match  mkdRule      /^\s*_\s\{0,1}_\s\{0,1}_$/
  65 syn match  mkdRule      /^\s*-\{3,}$/
  66 syn match  mkdRule      /^\s*\*\{3,5}$/
  67 syn match  mkdListItem  "^\s*[-*+]\s\+"
  68 syn match  mkdListItem  "^\s*\d\+\.\s\+"
  69 syn match  mkdCode      /^\s*\n\(\(\s\{4,}[^ ]\|\t\+[^\t]\).*\n\)\+/
  70 syn match  mkdLineBreak /  \+$/
  71 syn region mkdCode      start=/\\\@<!`/                   end=/\\\@<!`/
  72 syn region mkdCode      start=/\s*``[^`]*/          end=/[^`]*``\s*/
  73 syn region mkdBlockquote start=/^\s*>/              end=/$/                 contains=mkdLineBreak,mkdLineContinue,@Spell
  74 syn region mkdCode      start="<pre[^>]*>"         end="</pre>"
  75 syn region mkdCode      start="<code[^>]*>"        end="</code>"
  76
  77 "HTML headings
  78 syn region htmlH1       start="^\s*#"                   end="\($\|#\+\)" contains=@Spell
  79 syn region htmlH2       start="^\s*##"                  end="\($\|#\+\)" contains=@Spell
  80 syn region htmlH3       start="^\s*###"                 end="\($\|#\+\)" contains=@Spell
  81 syn region htmlH4       start="^\s*####"                end="\($\|#\+\)" contains=@Spell
  82 syn region htmlH5       start="^\s*#####"               end="\($\|#\+\)" contains=@Spell
  83 syn region htmlH6       start="^\s*######"              end="\($\|#\+\)" contains=@Spell
  84 syn match  htmlH1       /^.\+\n=\+$/ contains=@Spell
  85 syn match  htmlH2       /^.\+\n-\+$/ contains=@Spell
  86
  87
  88
  89 " fold region for headings
  90 syn region mkdHeaderFold
  91     \ start="^\s*\z(#\+\)"
  92     \ skip="^\s*\z1#\+"
  93     \ end="^\(\s*#\)\@="
  94     \ fold contains=TOP
  95
  96 " fold region for lists
  97 syn region mkdListFold
  98     \ start="^\z(\s*\)\*\z(\s*\)"
  99     \ skip="^\z1 \z2\s*[^#]"
 100     \ end="^\(.\)\@="
 101     \ fold contains=TOP
 102
 103 syn sync fromstart
 104 setlocal foldmethod=syntax
 105
 106
 107
 108 "highlighting for Markdown groups
 109 HtmlHiLink mkdString        String
 110 HtmlHiLink mkdCode          String
 111 HtmlHiLink mkdBlockquote    Comment
 112 HtmlHiLink mkdLineContinue  Comment
 113 HtmlHiLink mkdListItem      Identifier
 114 HtmlHiLink mkdRule          Identifier
 115 HtmlHiLink mkdLineBreak     Todo
 116 HtmlHiLink mkdLink          htmlLink
 117 HtmlHiLink mkdURL           htmlString
 118 HtmlHiLink mkdInlineURL     htmlLink
 119 HtmlHiLink mkdID            Identifier
 120 HtmlHiLink mkdLinkDef       mkdID
 121 HtmlHiLink mkdLinkDefTarget mkdURL
 122 HtmlHiLink mkdLinkTitle     htmlString
 123
 124 HtmlHiLink mkdDelimiter     Delimiter
 125
 126 let b:current_syntax = "mkd"
 127
 128 delcommand HtmlHiLink
 129 " vim: ts=8