Add fold regions for headings and list items

[etc/vim.git] / mkd.vim

diff --git a/mkd.vim b/mkd.vim
index 3fe2a40638f8dba1f58e0c35d53a21ada96209a1..189c7216a5b5ddb66a4540eaf3560c9de3719181 100644 (file)
--- a/mkd.vim
+++ b/mkd.vim
@@ -2,12 +2,11 @@
 " Language:    Markdown
 " Maintainer:  Ben Williams <benw@plasticboy.com>
 " URL:         http://plasticboy.com/markdown-vim-mode/
-" Version:     8
-" Last Change:  2008 April 29 
+" 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:        Do something appropriate with image syntax
 " TODO:        Handle stuff contained within stuff (e.g. headings within blockquotes)
 
 
@@ -41,9 +40,19 @@ syn region htmlBold     start=/\\\@<!\(^\|\A\)\@=\*\@<!\*\*\*\@!/     end=/\\\@<
 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
-syn region htmlString   start="]("ms=s+2             end=")"me=e-1
-syn region htmlLink     start="\\\@<!\["ms=s+1            end="\\\@<!\]"me=e-1 contains=@Spell
-syn region htmlString   start="\(\[.*]: *\)\@<=.*"  end="$"
+
+" [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
@@ -72,6 +81,27 @@ syn region htmlH6       start="^\s*######"              end="\($\|#\+\)" contain
 syn match  htmlH1       /^.\+\n=\+$/ contains=@Spell
 syn match  htmlH2       /^.\+\n-\+$/ contains=@Spell
 
+
+
+" fold region for headings
+syn region mkdHeaderFold
+    \ start="^\s*\z(#\+\)"
+    \ skip="^\s*\z1#\+"
+    \ end="^\(\s*#\)\@="
+    \ fold contains=TOP
+
+" fold region for lists
+syn region mkdListFold
+    \ start="^\z(\s*\)\*\z(\s*\)"
+    \ skip="^\z1 \z2\s*[^#]"
+    \ end="^\(.\)\@="
+    \ fold contains=TOP
+
+syn sync fromstart
+setlocal foldmethod=syntax
+
+
+
 "highlighting for Markdown groups
 HtmlHiLink mkdString       String
 HtmlHiLink mkdCode          String
@@ -80,6 +110,14 @@ 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"