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" Vim syntax file
" Language: Markdown
" Maintainer: Ben Williams <benw@plasticboy.com>
" URL: http://plasticboy.com/markdown-vim-mode/
" Version: 9
" Last Change: 2009 May 18
" Remark: Uses HTML syntax file
" Remark: I don't do anything with angle brackets (<>) because that would too easily
" easily conflict with HTML syntax
" TODO: Handle stuff contained within stuff (e.g. headings within blockquotes)
" Read the HTML syntax to start with
if version < 600
so <sfile>:p:h/html.vim
else
runtime! syntax/html.vim
unlet b:current_syntax
endif
if version < 600
syntax clear
elseif exists("b:current_syntax")
finish
endif
" don't use standard HiLink, it will not work with included syntax files
if version < 508
command! -nargs=+ HtmlHiLink hi link <args>
else
command! -nargs=+ HtmlHiLink hi def link <args>
endif
syn spell toplevel
syn case ignore
syn sync linebreaks=1
"additions to HTML groups
syn region htmlBold start=/\\\@<!\(^\|\A\)\@=\*\@<!\*\*\*\@!/ end=/\\\@<!\*\@<!\*\*\*\@!\($\|\A\)\@=/ contains=@Spell,htmlItalic
syn region htmlItalic start=/\\\@<!\(^\|\A\)\@=\*\@<!\*\*\@!/ end=/\\\@<!\*\@<!\*\*\@!\($\|\A\)\@=/ contains=htmlBold,@Spell
syn region htmlBold start=/\\\@<!\(^\|\A\)\@=_\@<!___\@!/ end=/\\\@<!_\@<!___\@!\($\|\A\)\@=/ contains=htmlItalic,@Spell
syn region htmlItalic start=/\\\@<!\(^\|\A\)\@=_\@<!__\@!/ end=/\\\@<!_\@<!__\@!\($\|\A\)\@=/ contains=htmlBold,@Spell
" [link](URL) | [link][id] | [link][]
syn region mkdLink matchgroup=mkdDelimiter start="\!\?\[" end="\]\ze\s*[[(]" contains=@Spell nextgroup=mkdURL,mkdID skipwhite oneline
syn region mkdID matchgroup=mkdDelimiter start="\[" end="\]" contained
syn region mkdURL matchgroup=mkdDelimiter start="(" end=")" contained
" Link definitions: [id]: URL (Optional Title)
" TODO handle automatic links without colliding with htmlTag (<URL>)
syn region mkdLinkDef matchgroup=mkdDelimiter start="^ \{,3}\zs\[" end="]:" oneline nextgroup=mkdLinkDefTarget skipwhite
syn region mkdLinkDefTarget start="<\?\zs\S" excludenl end="\ze[>[:space:]\n]" contained nextgroup=mkdLinkTitle,mkdLinkDef skipwhite skipnl oneline
syn region mkdLinkTitle matchgroup=mkdDelimiter start=+"+ end=+"+ contained
syn region mkdLinkTitle matchgroup=mkdDelimiter start=+'+ end=+'+ contained
syn region mkdLinkTitle matchgroup=mkdDelimiter start=+(+ end=+)+ contained
"define Markdown groups
syn match mkdLineContinue ".$" contained
syn match mkdRule /^\s*\*\s\{0,1}\*\s\{0,1}\*$/
syn match mkdRule /^\s*-\s\{0,1}-\s\{0,1}-$/
syn match mkdRule /^\s*_\s\{0,1}_\s\{0,1}_$/
syn match mkdRule /^\s*-\{3,}$/
syn match mkdRule /^\s*\*\{3,5}$/
syn match mkdListItem "^\s*[-*+]\s\+"
syn match mkdListItem "^\s*\d\+\.\s\+"
syn match mkdCode /^\s*\n\(\(\s\{4,}[^ ]\|\t\+[^\t]\).*\n\)\+/
syn match mkdLineBreak / \+$/
syn region mkdCode start=/\\\@<!`/ end=/\\\@<!`/
syn region mkdCode start=/\s*``[^`]*/ end=/[^`]*``\s*/
syn region mkdBlockquote start=/^\s*>/ end=/$/ contains=mkdLineBreak,mkdLineContinue,@Spell
syn region mkdCode start="<pre[^>]*>" end="</pre>"
syn region mkdCode start="<code[^>]*>" end="</code>"
"HTML headings
syn region htmlH1 start="^\s*#" end="\($\|#\+\)" contains=@Spell
syn region htmlH2 start="^\s*##" end="\($\|#\+\)" contains=@Spell
syn region htmlH3 start="^\s*###" end="\($\|#\+\)" contains=@Spell
syn region htmlH4 start="^\s*####" end="\($\|#\+\)" contains=@Spell
syn region htmlH5 start="^\s*#####" end="\($\|#\+\)" contains=@Spell
syn region htmlH6 start="^\s*######" end="\($\|#\+\)" contains=@Spell
syn match htmlH1 /^.\+\n=\+$/ contains=@Spell
syn match htmlH2 /^.\+\n-\+$/ contains=@Spell
"highlighting for Markdown groups
HtmlHiLink mkdString String
HtmlHiLink mkdCode String
HtmlHiLink mkdBlockquote Comment
HtmlHiLink mkdLineContinue Comment
HtmlHiLink mkdListItem Identifier
HtmlHiLink mkdRule Identifier
HtmlHiLink mkdLineBreak Todo
HtmlHiLink mkdLink htmlLink
HtmlHiLink mkdURL htmlString
HtmlHiLink mkdID Identifier
HtmlHiLink mkdLinkDef mkdID
HtmlHiLink mkdLinkDefTarget mkdURL
HtmlHiLink mkdLinkTitle htmlString
HtmlHiLink mkdDelimiter Delimiter
let b:current_syntax = "mkd"
delcommand HtmlHiLink
" vim: ts=8
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