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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 if get(g:, "vim_markdown_emphasis_multiline", 1)
46 syn region htmlItalic start="\%(^\|\s\)\zs\*\ze[^\\\*\t ]" end="[^\\\*\t ]\zs\*\ze\_W" keepend
47 syn region htmlItalic start="\%(^\|\s\)\zs_\ze[^\\_\t ]" end="[^\\_\t ]\zs_\ze\_W" keepend
48 syn region htmlBold start="\*\*\ze\S" end="\S\zs\*\*" keepend
49 syn region htmlBold start="__\ze\S" end="\S\zs__" keepend
50 syn region htmlBoldItalic start="\*\*\*\ze\S" end="\S\zs\*\*\*" keepend
51 syn region htmlBoldItalic start="___\ze\S" end="\S\zs___" keepend
53 " single-line emphasis (emphasis only works with closing token on the same line)
54 " the following character makes the match non-greedy: vv
55 syn region htmlItalic start="\%(^\|\s\)\zs\*\ze[^\\\*\t ]\([^\n\*]*[^\\\*\t ]\)\?\*" end="[^\\\*\t ]\zs\*\ze\_W" keepend
56 syn region htmlItalic start="\%(^\|\s\)\zs_\ze[^\\_\t ]\([^\n_]*[^\\_\t ]\)\?_" end="[^\\_\t ]\zs_\ze\_W" keepend
57 syn region htmlBold start="\*\*\ze\S\([^\n\*]*[^\\\*\t ]\)\?\*\*" end="\S\zs\*\*" keepend
58 syn region htmlBold start="__\ze\S\([^\n_]*[^\\_\t ]\)\?__" end="\S\zs__" keepend
59 syn region htmlBold start="\*\*\*\ze\S\([^\n\*]*[^\\\*\t ]\)\?\*\*\*" end="\S\zs\*\*\*" keepend
60 syn region htmlBold start="___\ze\S\([^\n_]*[^\\_\t ]\)\?___" end="\S\zs___" keepend
63 " [link](URL) | [link][id] | [link][] | ![image](URL)
64 syn region mkdFootnotes matchgroup=mkdDelimiter start="\[^" end="\]"
65 execute 'syn region mkdID matchgroup=mkdDelimiter start="\[" end="\]" contained oneline' . s:conceal
66 execute 'syn region mkdURL matchgroup=mkdDelimiter start="(" end=")" contained oneline' . s:conceal
67 execute 'syn region mkdLink matchgroup=mkdDelimiter start="\\\@<!!\?\[" end="\n\{-,1}[^]]\{-}\zs\]\ze[[(]" contains=@mkdNonListItem,@Spell nextgroup=mkdURL,mkdID skipwhite oneline' . s:concealends
69 " Autolink without angle brackets.
70 " mkd inline links: protocol optional user:pass@ sub/domain .com, .co.uk, etc optional port path/querystring/hash fragment
71 " ------------ _____________________ --------------------------- ________________________ ----------------- __
72 syntax match mkdInlineURL /https\?:\/\/\(\w\+\(:\w\+\)\?@\)\?\([A-Za-z][-_0-9A-Za-z]*\.\)\{1,}\(\w\{2,}\.\?\)\{1,}\(:[0-9]\{1,5}\)\?\S*/
74 " Autolink with parenthesis.
75 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=")"
77 " Autolink with angle brackets.
78 syn region mkdInlineURL matchgroup=mkdDelimiter start="\\\@<!<\ze[a-z][a-z0-9,.-]\{1,22}:\/\/[^> ]*>" end=">"
80 " Link definitions: [id]: URL (Optional Title)
81 syn region mkdLinkDef matchgroup=mkdDelimiter start="^ \{,3}\zs\[" end="]:" oneline nextgroup=mkdLinkDefTarget skipwhite
82 syn region mkdLinkDefTarget start="<\?\zs\S" excludenl end="\ze[>[:space:]\n]" contained nextgroup=mkdLinkTitle,mkdLinkDef skipwhite skipnl oneline
83 syn region mkdLinkTitle matchgroup=mkdDelimiter start=+"+ end=+"+ contained
84 syn region mkdLinkTitle matchgroup=mkdDelimiter start=+'+ end=+'+ contained
85 syn region mkdLinkTitle matchgroup=mkdDelimiter start=+(+ end=+)+ contained
88 syn region htmlH1 start="^\s*#" end="$" contains=@Spell
89 syn region htmlH2 start="^\s*##" end="$" contains=@Spell
90 syn region htmlH3 start="^\s*###" end="$" contains=@Spell
91 syn region htmlH4 start="^\s*####" end="$" contains=@Spell
92 syn region htmlH5 start="^\s*#####" end="$" contains=@Spell
93 syn region htmlH6 start="^\s*######" end="$" contains=@Spell
94 syn match htmlH1 /^.\+\n=\+$/ contains=@Spell
95 syn match htmlH2 /^.\+\n-\+$/ contains=@Spell
97 "define Markdown groups
98 syn match mkdLineBreak / \+$/
99 syn region mkdBlockquote start=/^\s*>/ end=/$/ contains=mkdLineBreak,@Spell
100 syn region mkdCode start=/\(\([^\\]\|^\)\\\)\@<!`/ end=/\(\([^\\]\|^\)\\\)\@<!`/
101 syn region mkdCode start=/\s*``[^`]*/ end=/[^`]*``\s*/
102 syn region mkdCode start=/^\s*\z(`\{3,}\)[^`]*$/ end=/^\s*\z1`*\s*$/
103 syn region mkdCode start=/\s*\~\~[^\~]*/ end=/[^\~]*\~\~\s*/
104 syn region mkdCode start=/^\s*\z(\~\{3,}\)\s*[0-9A-Za-z_+-]*\s*$/ end=/^\s*\z1\~*\s*$/
105 syn region mkdCode start="<pre[^>]*\\\@<!>" end="</pre>"
106 syn region mkdCode start="<code[^>]*\\\@<!>" end="</code>"
107 syn region mkdFootnote start="\[^" end="\]"
108 syn match mkdCode /^\s*\n\(\(\s\{8,}[^ ]\|\t\t\+[^\t]\).*\n\)\+/
109 syn match mkdCode /\%^\(\(\s\{4,}[^ ]\|\t\+[^\t]\).*\n\)\+/
110 syn match mkdCode /^\s*\n\(\(\s\{4,}[^ ]\|\t\+[^\t]\).*\n\)\+/ contained
111 syn match mkdListItem /^\s*\%([-*+]\|\d\+\.\)\s\+/ contained
112 syn region mkdListItemLine start="^\s*\%([-*+]\|\d\+\.\)\s\+" end="$" oneline contains=@mkdNonListItem,mkdListItem,@Spell
113 syn region mkdNonListItemBlock start="\(\%^\(\s*\([-*+]\|\d\+\.\)\s\+\)\@!\|\n\(\_^\_$\|\s\{4,}[^ ]\|\t+[^\t]\)\@!\)" end="^\(\s*\([-*+]\|\d\+\.\)\s\+\)\@=" contains=@mkdNonListItem,@Spell
114 syn match mkdRule /^\s*\*\s\{0,1}\*\s\{0,1}\*$/
115 syn match mkdRule /^\s*-\s\{0,1}-\s\{0,1}-$/
116 syn match mkdRule /^\s*_\s\{0,1}_\s\{0,1}_$/
117 syn match mkdRule /^\s*-\{3,}$/
118 syn match mkdRule /^\s*\*\{3,5}$/
121 if get(g:, 'vim_markdown_frontmatter', 0)
122 syn include @yamlTop syntax/yaml.vim
123 syn region Comment matchgroup=mkdDelimiter start="\%^---$" end="^---$" contains=@yamlTop
124 unlet! b:current_syntax
127 if get(g:, 'vim_markdown_toml_frontmatter', 0)
129 syn include @tomlTop syntax/toml.vim
130 syn region Comment matchgroup=mkdDelimiter start="\%^+++$" end="^+++$" transparent contains=@tomlTop
131 unlet! b:current_syntax
133 syn region Comment matchgroup=mkdDelimiter start="\%^+++$" end="^+++$"
137 if get(g:, 'vim_markdown_json_frontmatter', 0)
139 syn include @jsonTop syntax/json.vim
140 syn region Comment matchgroup=mkdDelimiter start="\%^{$" end="^}$" contains=@jsonTop
141 unlet! b:current_syntax
143 syn region Comment matchgroup=mkdDelimiter start="\%^{$" end="^}$"
147 if get(g:, 'vim_markdown_math', 0)
148 syn include @tex syntax/tex.vim
149 syn region mkdMath matchgroup=mkdDelimiter start="\\\@<!\$" end="\$" contains=@tex
150 syn region mkdMath matchgroup=mkdDelimiter start="\\\@<!\$\$" end="\$\$" contains=@tex
153 syn cluster mkdNonListItem contains=@htmlTop,htmlItalic,htmlBold,htmlBoldItalic,mkdFootnotes,mkdInlineURL,mkdLink,mkdLinkDef,mkdLineBreak,mkdBlockquote,mkdCode,mkdRule,htmlH1,htmlH2,htmlH3,htmlH4,htmlH5,htmlH6,mkdMath
155 "highlighting for Markdown groups
156 HtmlHiLink mkdString String
157 HtmlHiLink mkdCode String
158 HtmlHiLink mkdCodeStart String
159 HtmlHiLink mkdCodeEnd String
160 HtmlHiLink mkdFootnote Comment
161 HtmlHiLink mkdBlockquote Comment
162 HtmlHiLink mkdListItem Identifier
163 HtmlHiLink mkdRule Identifier
164 HtmlHiLink mkdLineBreak Todo
165 HtmlHiLink mkdFootnotes htmlLink
166 HtmlHiLink mkdLink htmlLink
167 HtmlHiLink mkdURL htmlString
168 HtmlHiLink mkdInlineURL htmlLink
169 HtmlHiLink mkdID Identifier
170 HtmlHiLink mkdLinkDef mkdID
171 HtmlHiLink mkdLinkDefTarget mkdURL
172 HtmlHiLink mkdLinkTitle htmlString
173 HtmlHiLink mkdDelimiter Delimiter
175 let b:current_syntax = "mkd"
177 delcommand HtmlHiLink