X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/e6b9d3a25405515e6c1f9e80f4653f0db4edd4f2..c45a152fcb95075120ad7f99fad08b6b1b720299:/syntax/markdown.vim

diff --git a/syntax/markdown.vim b/syntax/markdown.vim
index e36d083..5ee9cc4 100644
--- a/syntax/markdown.vim
+++ b/syntax/markdown.vim
@@ -36,7 +36,7 @@ syn sync linebreaks=1
 
 "additions to HTML groups
 syn region htmlItalic start="\\\@<!\*\S\@=" end="\S\@<=\\\@<!\*" keepend oneline
-syn region htmlItalic start="\(^\|\s\)\@<=_\|\\\@<!_\([^_]\+\s\)\@=" end="\S\@<=_\|_\S\@=" keepend oneline
+syn region htmlItalic start="\(^\|\s\)\@<=_\|\\\@<!_\([^_]\+\s\)\@=" end="\S\@<=[^\\]_\|[^\\]_\S\@=" keepend oneline
 syn region htmlBold start="\S\@<=\*\*\|\*\*\S\@=" end="\S\@<=\*\*\|\*\*\S\@=" keepend oneline
 syn region htmlBold start="\S\@<=__\|__\S\@=" end="\S\@<=__\|__\S\@=" keepend oneline
 syn region htmlBoldItalic start="\S\@<=\*\*\*\|\*\*\*\S\@=" end="\S\@<=\*\*\*\|\*\*\*\S\@=" keepend oneline
@@ -69,9 +69,9 @@ 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*```\s*[0-9A-Za-z_-]*\s*$/          end=/^\s*```\s*$/
+syn region mkdCode         start=/^\s*```\s*[0-9A-Za-z_+-]*\s*$/          end=/^\s*```\s*$/
 syn region mkdCode         start=/\s*\~\~[^\~]*/              end=/[^\~]*\~\~\s*/
-syn region mkdCode         start=/^\s*\~\~\~\s*[0-9A-Za-z_-]*\s*$/          end=/^\s*\~\~\~\s*$/
+syn region mkdCode         start=/^\s*\~\~\~\s*[0-9A-Za-z_+-]*\s*$/          end=/^\s*\~\~\~\s*$/
 syn region mkdCode         start="<pre[^>]*>"              end="</pre>"
 syn region mkdCode         start="<code[^>]*>"             end="</code>"
 syn region mkdFootnote     start="\[^"                     end="\]"
@@ -87,26 +87,27 @@ syn match  mkdRule         /^\s*-\{3,}$/
 syn match  mkdRule         /^\s*\*\{3,5}$/
 
 "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 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
 
-if get(g:, 'vim_markdown_math', 0)
-  syn region mkdMath matchgroup=mkdDelimiter start="\\\@<!\$" end="\$"
-  syn region mkdMath matchgroup=mkdDelimiter start="\\\@<!\$\$" end="\$\$"
-endif
-
 " YAML frontmatter
 if get(g:, 'vim_markdown_frontmatter', 0)
   syn include @yamlTop syntax/yaml.vim
   syn region Comment matchgroup=mkdDelimiter start="\%^---$" end="^---$" contains=@yamlTop
 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
+endif
+
 syn cluster mkdNonListItem contains=htmlItalic,htmlBold,htmlBoldItalic,mkdFootnotes,mkdInlineURL,mkdLink,mkdLinkDef,mkdLineBreak,mkdBlockquote,mkdCode,mkdIndentCode,mkdListItem,mkdRule,htmlH1,htmlH2,htmlH3,htmlH4,htmlH5,htmlH6,mkdMath
 
 "highlighting for Markdown groups
@@ -127,7 +128,6 @@ HtmlHiLink mkdID            Identifier
 HtmlHiLink mkdLinkDef       mkdID
 HtmlHiLink mkdLinkDefTarget mkdURL
 HtmlHiLink mkdLinkTitle     htmlString
-HtmlHiLink mkdMath          Statement
 HtmlHiLink mkdDelimiter     Delimiter
 
 let b:current_syntax = "mkd"