X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/f3edf871989e4c9763fb8f205671d87608790f04..da145debf80da5f38e244d2f968d43f5051590f1:/syntax/markdown.vim

diff --git a/syntax/markdown.vim b/syntax/markdown.vim
index b812698..5056af4 100644
--- a/syntax/markdown.vim
+++ b/syntax/markdown.vim
@@ -34,95 +34,130 @@ syn spell toplevel
 syn case ignore
 syn sync linebreaks=1
 
-"additions to HTML groups
-syn region htmlItalic start="\\\@<!\*\ze[^\\\*\t ]" end="[^\\\*\t ]\zs\*" keepend oneline
-syn region htmlItalic start="\\\@<!_\ze[^\\_\t ]" end="[^\\_\t ]\zs_" keepend oneline
-syn region htmlBold start="\*\*\ze\S" end="\S\zs\*\*" keepend oneline
-syn region htmlBold start="__\ze\S" end="\S\zs__" keepend oneline
-syn region htmlBoldItalic start="\*\*\*\ze\S" end="\S\zs\*\*\*" keepend oneline
-syn region htmlBoldItalic start="___\ze\S" end="\S\zs___" keepend oneline
+let s:conceal = ''
+let s:concealends = ''
+if has('conceal') && get(g:, 'vim_markdown_conceal', 1)
+  let s:conceal = ' conceal'
+  let s:concealends = ' concealends'
+endif
+
+" additions to HTML groups
+if get(g:, 'vim_markdown_emphasis_multiline', 1)
+    let s:oneline = ''
+else
+    let s:oneline = ' oneline'
+endif
+syn region mkdItalic matchgroup=mkdItalic start="\%(\*\|_\)"    end="\%(\*\|_\)"
+syn region mkdBold matchgroup=mkdBold start="\%(\*\*\|__\)"    end="\%(\*\*\|__\)"
+syn region mkdBoldItalic matchgroup=mkdBoldItalic start="\%(\*\*\*\|___\)"    end="\%(\*\*\*\|___\)"
+execute 'syn region htmlItalic matchgroup=mkdItalic start="\%(^\|\s\)\zs\*\ze[^\\\*\t ]\%(\%([^*]\|\\\*\|\n\)*[^\\\*\t ]\)\?\*\_W" end="[^\\\*\t ]\zs\*\ze\_W" keepend contains=@Spell' . s:oneline . s:concealends
+execute 'syn region htmlItalic matchgroup=mkdItalic start="\%(^\|\s\)\zs_\ze[^\\_\t ]" end="[^\\_\t ]\zs_\ze\_W" keepend contains=@Spell' . s:oneline . s:concealends
+execute 'syn region htmlBold matchgroup=mkdBold start="\%(^\|\s\)\zs\*\*\ze\S" end="\S\zs\*\*" keepend contains=@Spell' . s:oneline . s:concealends
+execute 'syn region htmlBold matchgroup=mkdBold start="\%(^\|\s\)\zs__\ze\S" end="\S\zs__" keepend contains=@Spell' . s:oneline . s:concealends
+execute 'syn region htmlBoldItalic matchgroup=mkdBoldItalic start="\%(^\|\s\)\zs\*\*\*\ze\S" end="\S\zs\*\*\*" keepend contains=@Spell' . s:oneline . s:concealends
+execute 'syn region htmlBoldItalic matchgroup=mkdBoldItalic start="\%(^\|\s\)\zs___\ze\S" end="\S\zs___" keepend contains=@Spell' . s:oneline . s:concealends
 
 " [link](URL) | [link][id] | [link][] | ![image](URL)
 syn region mkdFootnotes matchgroup=mkdDelimiter start="\[^"    end="\]"
-syn region mkdID matchgroup=mkdDelimiter        start="\["    end="\]" contained oneline
-syn region mkdURL matchgroup=mkdDelimiter       start="("     end=")"  contained oneline
-syn region mkdLink matchgroup=mkdDelimiter      start="\\\@<!!\?\[" end="\]\ze\s*[[(]" contains=@mkdNonListItem,@Spell nextgroup=mkdURL,mkdID skipwhite oneline
+execute 'syn region mkdID matchgroup=mkdDelimiter    start="\["    end="\]" contained oneline' . s:conceal
+execute 'syn region mkdURL matchgroup=mkdDelimiter   start="("     end=")"  contained oneline' . s:conceal
+execute 'syn region mkdLink matchgroup=mkdDelimiter  start="\\\@<!!\?\[\ze[^]\n]*\n\?[^]\n]*\][[(]" end="\]" contains=@mkdNonListItem,@Spell nextgroup=mkdURL,mkdID skipwhite' . s:concealends
 
 " Autolink without angle brackets.
-" mkd  inline links:           protocol   optional  user:pass@       sub/domain                 .com, .co.uk, etc      optional port   path/querystring/hash fragment
-"                            ------------ _____________________ --------------------------- ________________________ ----------------- __
-syntax match   mkdInlineURL /https\?:\/\/\(\w\+\(:\w\+\)\?@\)\?\([A-Za-z][-_0-9A-Za-z]*\.\)\{1,}\(\w\{2,}\.\?\)\{1,}\(:[0-9]\{1,5}\)\?\S*/
+" mkd  inline links:      protocol     optional  user:pass@  sub/domain                    .com, .co.uk, etc         optional port   path/querystring/hash fragment
+"                         ------------ _____________________ ----------------------------- _________________________ ----------------- __
+syn match   mkdInlineURL /https\?:\/\/\(\w\+\(:\w\+\)\?@\)\?\([A-Za-z0-9][-_0-9A-Za-z]*\.\)\{1,}\(\w\{2,}\.\?\)\{1,}\(:[0-9]\{1,5}\)\?\S*/
 
 " Autolink with parenthesis.
-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=")"
+syn region  mkdInlineURL matchgroup=mkdDelimiter start="(\(https\?:\/\/\(\w\+\(:\w\+\)\?@\)\?\([A-Za-z0-9][-_0-9A-Za-z]*\.\)\{1,}\(\w\{2,}\.\?\)\{1,}\(:[0-9]\{1,5}\)\?\S*)\)\@=" end=")"
 
 " Autolink with angle brackets.
 syn region mkdInlineURL matchgroup=mkdDelimiter start="\\\@<!<\ze[a-z][a-z0-9,.-]\{1,22}:\/\/[^> ]*>" end=">"
 
 " Link definitions: [id]: URL (Optional Title)
-syn region mkdLinkDef matchgroup=mkdDelimiter   start="^ \{,3}\zs\[" end="]:" oneline nextgroup=mkdLinkDefTarget skipwhite
+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
 
 "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
+syn region htmlH1       matchgroup=mkdHeading     start="^\s*#"                   end="$" contains=mkdLink,mkdInlineURL,@Spell
+syn region htmlH2       matchgroup=mkdHeading     start="^\s*##"                  end="$" contains=mkdLink,mkdInlineURL,@Spell
+syn region htmlH3       matchgroup=mkdHeading     start="^\s*###"                 end="$" contains=mkdLink,mkdInlineURL,@Spell
+syn region htmlH4       matchgroup=mkdHeading     start="^\s*####"                end="$" contains=mkdLink,mkdInlineURL,@Spell
+syn region htmlH5       matchgroup=mkdHeading     start="^\s*#####"               end="$" contains=mkdLink,mkdInlineURL,@Spell
+syn region htmlH6       matchgroup=mkdHeading     start="^\s*######"              end="$" contains=mkdLink,mkdInlineURL,@Spell
+syn match  htmlH1       /^.\+\n=\+$/ contains=mkdLink,mkdInlineURL,@Spell
+syn match  htmlH2       /^.\+\n-\+$/ contains=mkdLink,mkdInlineURL,@Spell
 
 "define Markdown groups
-syn match  mkdLineContinue ".$" contained
 syn match  mkdLineBreak    /  \+$/
-syn region mkdBlockquote   start=/^\s*>/                   end=/$/ contains=mkdLineBreak,mkdLineContinue,@Spell
-syn region mkdCode         start=/\(\([^\\]\|^\)\\\)\@<!`/ end=/\(\([^\\]\|^\)\\\)\@<!`/
-syn region mkdCode         start=/\s*``[^`]*/              end=/[^`]*``\s*/
-syn region mkdCode         start=/^\s*\z(`\{3,}\)\s*[0-9A-Za-z_+-]*\s*$/          end=/^\s*\z1`*\s*$/
-syn region mkdCode         start=/\s*\~\~[^\~]*/              end=/[^\~]*\~\~\s*/
-syn region mkdCode         start=/^\s*\z(\~\{3,}\)\s*[0-9A-Za-z_+-]*\s*$/         end=/^\s*\z1\~*\s*$/
-syn region mkdCode         start="<pre[^>]*>"              end="</pre>"
-syn region mkdCode         start="<code[^>]*>"             end="</code>"
+syn region mkdBlockquote   start=/^\s*>/                   end=/$/ contains=mkdLink,mkdInlineURL,mkdLineBreak,@Spell
+execute 'syn region mkdCode matchgroup=mkdCodeDelimiter start=/\(\([^\\]\|^\)\\\)\@<!`/                     end=/\(\([^\\]\|^\)\\\)\@<!`/'  . s:concealends
+execute 'syn region mkdCode matchgroup=mkdCodeDelimiter start=/\(\([^\\]\|^\)\\\)\@<!``/ skip=/[^`]`[^`]/   end=/\(\([^\\]\|^\)\\\)\@<!``/' . s:concealends
+execute 'syn region mkdCode matchgroup=mkdCodeDelimiter start=/^\s*\z(`\{3,}\)[^`]*$/                       end=/^\s*\z1`*\s*$/'            . s:concealends
+execute 'syn region mkdCode matchgroup=mkdCodeDelimiter start=/\(\([^\\]\|^\)\\\)\@<!\~\~/  end=/\(\([^\\]\|^\)\\\)\@<!\~\~/'               . s:concealends
+execute 'syn region mkdCode matchgroup=mkdCodeDelimiter start=/^\s*\z(\~\{3,}\)\s*[0-9A-Za-z_+-]*\s*$/      end=/^\s*\z1\~*\s*$/'           . s:concealends
+execute 'syn region mkdCode matchgroup=mkdCodeDelimiter start="<pre[^>]*\\\@<!>"                            end="</pre>"'                   . s:concealends
+execute 'syn region mkdCode matchgroup=mkdCodeDelimiter start="<code[^>]*\\\@<!>"                           end="</code>"'                  . s:concealends
 syn region mkdFootnote     start="\[^"                     end="\]"
 syn match  mkdCode         /^\s*\n\(\(\s\{8,}[^ ]\|\t\t\+[^\t]\).*\n\)\+/
+syn match  mkdCode         /\%^\(\(\s\{4,}[^ ]\|\t\+[^\t]\).*\n\)\+/
 syn match  mkdCode         /^\s*\n\(\(\s\{4,}[^ ]\|\t\+[^\t]\).*\n\)\+/ contained
-syn region mkdListItemLine matchgroup=mkdListItem start="^\s*\%([-*+]\|\d\+\.\)\s\+" end="$" contains=@mkdNonListItem,@Spell
+syn match  mkdListItem     /^\s*\%([-*+]\|\d\+\.\)\ze\s\+/ contained
+syn region mkdListItemLine start="^\s*\%([-*+]\|\d\+\.\)\s\+" end="$" oneline contains=@mkdNonListItem,mkdListItem,@Spell
 syn region mkdNonListItemBlock start="\(\%^\(\s*\([-*+]\|\d\+\.\)\s\+\)\@!\|\n\(\_^\_$\|\s\{4,}[^ ]\|\t+[^\t]\)\@!\)" end="^\(\s*\([-*+]\|\d\+\.\)\s\+\)\@=" contains=@mkdNonListItem,@Spell
-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  mkdRule         /^\s*\*\s\{0,1}\*\s\{0,1}\*\(\*\|\s\)*$/
+syn match  mkdRule         /^\s*-\s\{0,1}-\s\{0,1}-\(-\|\s\)*$/
+syn match  mkdRule         /^\s*_\s\{0,1}_\s\{0,1}_\(_\|\s\)*$/
 
 " YAML frontmatter
 if get(g:, 'vim_markdown_frontmatter', 0)
   syn include @yamlTop syntax/yaml.vim
-  syn region Comment matchgroup=mkdDelimiter start="\%^---$" end="^---$" contains=@yamlTop
+  syn region Comment matchgroup=mkdDelimiter start="\%^---$" end="^\(---\|\.\.\.\)$" contains=@yamlTop keepend
+  unlet! b:current_syntax
+endif
+
+if get(g:, 'vim_markdown_toml_frontmatter', 0)
+  try
+    syn include @tomlTop syntax/toml.vim
+    syn region Comment matchgroup=mkdDelimiter start="\%^+++$" end="^+++$" transparent contains=@tomlTop keepend
+    unlet! b:current_syntax
+  catch /E484/
+    syn region Comment matchgroup=mkdDelimiter start="\%^+++$" end="^+++$"
+  endtry
+endif
+
+if get(g:, 'vim_markdown_json_frontmatter', 0)
+  try
+    syn include @jsonTop syntax/json.vim
+    syn region Comment matchgroup=mkdDelimiter start="\%^{$" end="^}$" contains=@jsonTop keepend
+    unlet! b:current_syntax
+  catch /E484/
+    syn region Comment matchgroup=mkdDelimiter start="\%^{$" end="^}$"
+  endtry
 endif
 
 if get(g:, 'vim_markdown_math', 0)
   syn include @tex syntax/tex.vim
-  syn region mkdMath matchgroup=mkdDelimiter start="\\\@<!\$" end="\$" contains=@tex
-  syn region mkdMath matchgroup=mkdDelimiter start="\\\@<!\$\$" end="\$\$" contains=@tex
+  syn region mkdMath start="\\\@<!\$" end="\$" skip="\\\$" contains=@tex keepend
+  syn region mkdMath start="\\\@<!\$\$" end="\$\$" skip="\\\$" contains=@tex keepend
 endif
 
-syn cluster mkdNonListItem contains=@htmlTop,htmlItalic,htmlBold,htmlBoldItalic,mkdFootnotes,mkdInlineURL,mkdLink,mkdLinkDef,mkdLineBreak,mkdBlockquote,mkdCode,mkdListItem,mkdRule,htmlH1,htmlH2,htmlH3,htmlH4,htmlH5,htmlH6,mkdMath
+syn cluster mkdNonListItem contains=@htmlTop,htmlItalic,htmlBold,htmlBoldItalic,mkdFootnotes,mkdInlineURL,mkdLink,mkdLinkDef,mkdLineBreak,mkdBlockquote,mkdCode,mkdRule,htmlH1,htmlH2,htmlH3,htmlH4,htmlH5,htmlH6,mkdMath
 
 "highlighting for Markdown groups
 HtmlHiLink mkdString        String
 HtmlHiLink mkdCode          String
+HtmlHiLink mkdCodeDelimiter String
 HtmlHiLink mkdCodeStart     String
 HtmlHiLink mkdCodeEnd       String
 HtmlHiLink mkdFootnote      Comment
 HtmlHiLink mkdBlockquote    Comment
-HtmlHiLink mkdLineContinue  Comment
 HtmlHiLink mkdListItem      Identifier
 HtmlHiLink mkdRule          Identifier
-HtmlHiLink mkdLineBreak     Todo
+HtmlHiLink mkdLineBreak     Visual
 HtmlHiLink mkdFootnotes     htmlLink
 HtmlHiLink mkdLink          htmlLink
 HtmlHiLink mkdURL           htmlString