Vim: Syntax highlighting for in-line code in gitit markdown

markdown.vim

" from http://vim.wikia.com/wiki/VimTip857
function! TextEnableCodeSnip(filetype, start, end, textSnipHl)
  let ft=toupper(a:filetype)
  let group='textGroup'.ft
  if exists('b:current_syntax')
    let s:current_syntax=b:current_syntax
    " Remove current syntax definition, as some syntax files (e.g. cpp.vim)
    " do nothing if b:current_syntax is defined.
    unlet b:current_syntax
  endif
  execute 'syntax include @'.group.' syntax/'.a:filetype.'.vim'
  try
    execute 'syntax include @'.group.' after/syntax/'.a:filetype.'.vim'
  catch
  endtry
  if exists('s:current_syntax')
    let b:current_syntax=s:current_syntax
  else
    unlet b:current_syntax
  endif
  execute 'syntax region textSnip'.ft.'
        \ matchgroup='.a:textSnipHl.'
        \ start="'.a:start.'" end="'.a:end.'"
        \ contains=@'.group
endfunction

for l in ["cpp", "haskell", "python", "scala", "dot", "xml"]
  call TextEnableCodeSnip(l, '^\s*\~\{3,}{\s*\.'.l.'\s*}\s*$', '^\s*\~\{3,}\s*$', 'specialComment')
endfor

" hightlight latex maths
call TextEnableCodeSnip("plaintex", '\$\+', '\$\+', 'specialComment')