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3 " Maintainer: Ben Williams <benw@plasticboy.com>
4 " URL: http://plasticboy.com/markdown-vim-mode/
5 " Remark: Uses HTML syntax file
6 " TODO: Handle stuff contained within stuff (e.g. headings within blockquotes)
9 " Read the HTML syntax to start with
11 so <sfile>:p:h/html.vim
13 runtime! syntax/html.vim
15 if exists('b:current_syntax')
16 unlet b:current_syntax
22 elseif exists("b:current_syntax")
26 " don't use standard HiLink, it will not work with included syntax files
28 command! -nargs=+ HtmlHiLink hi link <args>
30 command! -nargs=+ HtmlHiLink hi def link <args>
38 let s:concealends = ''
40 let s:conceal = ' conceal'
41 let s:concealends = ' concealends'
44 "additions to HTML groups
45 syn region htmlItalic start="\%(^\|\s\)\zs\*\ze[^\\\*\t ]" end="[^\\\*\t ]\zs\*\ze\_W" keepend
46 syn region htmlItalic start="\%(^\|\s\)\zs_\ze[^\\_\t ]" end="[^\\_\t ]\zs_\ze\_W" keepend
47 syn region htmlBold start="\*\*\ze\S" end="\S\zs\*\*" keepend
48 syn region htmlBold start="__\ze\S" end="\S\zs__" keepend
49 syn region htmlBoldItalic start="\*\*\*\ze\S" end="\S\zs\*\*\*" keepend
50 syn region htmlBoldItalic start="___\ze\S" end="\S\zs___" keepend
52 " [link](URL) | [link][id] | [link][] | ![image](URL)
53 syn region mkdFootnotes matchgroup=mkdDelimiter start="\[^" end="\]"
54 execute 'syn region mkdID matchgroup=mkdDelimiter start="\[" end="\]" contained oneline' . s:conceal
55 execute 'syn region mkdURL matchgroup=mkdDelimiter start="(" end=")" contained oneline' . s:conceal
56 execute 'syn region mkdLink matchgroup=mkdDelimiter start="\\\@<!!\?\[" end="\n\{-,1}[^]]\{-}\zs\]\ze[[(]" contains=@mkdNonListItem,@Spell nextgroup=mkdURL,mkdID skipwhite oneline' . s:concealends
58 " Autolink without angle brackets.
59 " mkd inline links: protocol optional user:pass@ sub/domain .com, .co.uk, etc optional port path/querystring/hash fragment
60 " ------------ _____________________ --------------------------- ________________________ ----------------- __
61 syntax match mkdInlineURL /https\?:\/\/\(\w\+\(:\w\+\)\?@\)\?\([A-Za-z][-_0-9A-Za-z]*\.\)\{1,}\(\w\{2,}\.\?\)\{1,}\(:[0-9]\{1,5}\)\?\S*/
63 " Autolink with parenthesis.
64 syntax region mkdInlineURL matchgroup=mkdDelimiter start="(\(https\?:\/\/\(\w\+\(:\w\+\)\?@\)\?\([A-Za-z][-_0-9A-Za-z]*\.\)\{1,}\(\w\{2,}\.\?\)\{1,}\(:[0-9]\{1,5}\)\?\S*)\)\@=" end=")"
66 " Autolink with angle brackets.
67 syn region mkdInlineURL matchgroup=mkdDelimiter start="\\\@<!<\ze[a-z][a-z0-9,.-]\{1,22}:\/\/[^> ]*>" end=">"
69 " Link definitions: [id]: URL (Optional Title)
70 syn region mkdLinkDef matchgroup=mkdDelimiter start="^ \{,3}\zs\[" end="]:" oneline nextgroup=mkdLinkDefTarget skipwhite
71 syn region mkdLinkDefTarget start="<\?\zs\S" excludenl end="\ze[>[:space:]\n]" contained nextgroup=mkdLinkTitle,mkdLinkDef skipwhite skipnl oneline
72 syn region mkdLinkTitle matchgroup=mkdDelimiter start=+"+ end=+"+ contained
73 syn region mkdLinkTitle matchgroup=mkdDelimiter start=+'+ end=+'+ contained
74 syn region mkdLinkTitle matchgroup=mkdDelimiter start=+(+ end=+)+ contained
77 syn region htmlH1 start="^\s*#" end="$" contains=@Spell
78 syn region htmlH2 start="^\s*##" end="$" contains=@Spell
79 syn region htmlH3 start="^\s*###" end="$" contains=@Spell
80 syn region htmlH4 start="^\s*####" end="$" contains=@Spell
81 syn region htmlH5 start="^\s*#####" end="$" contains=@Spell
82 syn region htmlH6 start="^\s*######" end="$" contains=@Spell
83 syn match htmlH1 /^.\+\n=\+$/ contains=@Spell
84 syn match htmlH2 /^.\+\n-\+$/ contains=@Spell
86 "define Markdown groups
87 syn match mkdLineBreak / \+$/
88 syn region mkdBlockquote start=/^\s*>/ end=/$/ contains=mkdLineBreak,@Spell
89 syn region mkdCode start=/\(\([^\\]\|^\)\\\)\@<!`/ end=/\(\([^\\]\|^\)\\\)\@<!`/
90 syn region mkdCode start=/\s*``[^`]*/ end=/[^`]*``\s*/
91 syn region mkdCode start=/^\s*\z(`\{3,}\)\s*[0-9A-Za-z_+-]*\s*$/ end=/^\s*\z1`*\s*$/
92 syn region mkdCode start=/\s*\~\~[^\~]*/ end=/[^\~]*\~\~\s*/
93 syn region mkdCode start=/^\s*\z(\~\{3,}\)\s*[0-9A-Za-z_+-]*\s*$/ end=/^\s*\z1\~*\s*$/
94 syn region mkdCode start="<pre[^>]*>" end="</pre>"
95 syn region mkdCode start="<code[^>]*>" end="</code>"
96 syn region mkdFootnote start="\[^" end="\]"
97 syn match mkdCode /^\s*\n\(\(\s\{8,}[^ ]\|\t\t\+[^\t]\).*\n\)\+/
98 syn match mkdCode /\%^\(\(\s\{4,}[^ ]\|\t\+[^\t]\).*\n\)\+/
99 syn match mkdCode /^\s*\n\(\(\s\{4,}[^ ]\|\t\+[^\t]\).*\n\)\+/ contained
100 syn match mkdListItem /^\s*\%([-*+]\|\d\+\.\)\s\+/ contained
101 syn region mkdListItemLine start="^\s*\%([-*+]\|\d\+\.\)\s\+" end="$" oneline contains=@mkdNonListItem,mkdListItem,@Spell
102 syn region mkdNonListItemBlock start="\(\%^\(\s*\([-*+]\|\d\+\.\)\s\+\)\@!\|\n\(\_^\_$\|\s\{4,}[^ ]\|\t+[^\t]\)\@!\)" end="^\(\s*\([-*+]\|\d\+\.\)\s\+\)\@=" contains=@mkdNonListItem,@Spell
103 syn match mkdRule /^\s*\*\s\{0,1}\*\s\{0,1}\*$/
104 syn match mkdRule /^\s*-\s\{0,1}-\s\{0,1}-$/
105 syn match mkdRule /^\s*_\s\{0,1}_\s\{0,1}_$/
106 syn match mkdRule /^\s*-\{3,}$/
107 syn match mkdRule /^\s*\*\{3,5}$/
110 if get(g:, 'vim_markdown_frontmatter', 0)
111 syn include @yamlTop syntax/yaml.vim
112 syn region Comment matchgroup=mkdDelimiter start="\%^---$" end="^---$" contains=@yamlTop
113 unlet! b:current_syntax
116 if get(g:, 'vim_markdown_toml_frontmatter', 0)
118 syn include @tomlTop syntax/toml.vim
119 syn region Comment matchgroup=mkdDelimiter start="\%^+++$" end="^+++$" transparent contains=@tomlTop
120 unlet! b:current_syntax
122 syn region Comment matchgroup=mkdDelimiter start="\%^+++$" end="^+++$"
126 if get(g:, 'vim_markdown_json_frontmatter', 0)
127 syn include @jsonTop syntax/json.vim
128 syn region Comment matchgroup=mkdDelimiter start="\%^{$" end="^}$" contains=@jsonTop
129 unlet! b:current_syntax
132 if get(g:, 'vim_markdown_math', 0)
133 syn include @tex syntax/tex.vim
134 syn region mkdMath matchgroup=mkdDelimiter start="\\\@<!\$" end="\$" contains=@tex
135 syn region mkdMath matchgroup=mkdDelimiter start="\\\@<!\$\$" end="\$\$" contains=@tex
138 syn cluster mkdNonListItem contains=@htmlTop,htmlItalic,htmlBold,htmlBoldItalic,mkdFootnotes,mkdInlineURL,mkdLink,mkdLinkDef,mkdLineBreak,mkdBlockquote,mkdCode,mkdRule,htmlH1,htmlH2,htmlH3,htmlH4,htmlH5,htmlH6,mkdMath
140 "highlighting for Markdown groups
141 HtmlHiLink mkdString String
142 HtmlHiLink mkdCode String
143 HtmlHiLink mkdCodeStart String
144 HtmlHiLink mkdCodeEnd String
145 HtmlHiLink mkdFootnote Comment
146 HtmlHiLink mkdBlockquote Comment
147 HtmlHiLink mkdListItem Identifier
148 HtmlHiLink mkdRule Identifier
149 HtmlHiLink mkdLineBreak Todo
150 HtmlHiLink mkdFootnotes htmlLink
151 HtmlHiLink mkdLink htmlLink
152 HtmlHiLink mkdURL htmlString
153 HtmlHiLink mkdInlineURL htmlLink
154 HtmlHiLink mkdID Identifier
155 HtmlHiLink mkdLinkDef mkdID
156 HtmlHiLink mkdLinkDefTarget mkdURL
157 HtmlHiLink mkdLinkTitle htmlString
158 HtmlHiLink mkdDelimiter Delimiter
160 let b:current_syntax = "mkd"
162 delcommand HtmlHiLink