Merge pull request #492 from jrwrigh/master

feat: Allow characters after code fence language

ftplugin/markdown.vim

@@ -788,7 +788,8 @@ function! s:MarkdownHighlightSources(force)
  " Look for code blocks in the current file
  let filetypes = {}
  for line in getline(1, '$')
- let ft = matchstr(line, '```\s*\zs[0-9A-Za-z_+-]*')
+ let ft = matchstr(line, '```\s*\zs[0-9A-Za-z_+-]*\ze.*')
+ echom ft
  if !empty(ft) && ft !~ '^\d*$' | let filetypes[ft] = 1 | endif
  endfor
  if !exists('b:mkd_known_filetypes')
@@ -819,7 +820,7 @@ function! s:MarkdownHighlightSources(force)
  else
  let include = '@' . toupper(filetype)
  endif
- let command = 'syntax region %s matchgroup=%s start="^\s*```\s*%s$" matchgroup=%s end="\s*```$" keepend contains=%s%s'
+ let command = 'syntax region %s matchgroup=%s start="^\s*```\s*%s.*$" matchgroup=%s end="\s*```$" keepend contains=%s%s'
  execute printf(command, group, startgroup, ft, endgroup, include, has('conceal') && get(g:, 'vim_markdown_conceal', 1) && get(g:, 'vim_markdown_conceal_code_blocks', 1) ? ' concealends' : '')
  execute printf('syntax cluster mkdNonListItem add=%s', group)
 

test/syntax.vader

@@ -739,12 +739,18 @@ def a
 end
 ```
 
+```ruby {linenos=table,hl_lines=[8,"15-17"],linenostart=199}
+class b
+end
+```
+
 Execute (fenced code block syntax with a language specifier):
  let b:func = Markdown_GetFunc('vim-markdown/ftplugin/markdown.vim', 'MarkdownRefreshSyntax')
  call b:func(0)
  AssertEqual SyntaxOf('include'), 'cInclude'
  AssertEqual SyntaxOf('code'), 'mkdSnippetCPP'
  AssertEqual SyntaxOf('def'), 'rubyDefine'
+ AssertEqual SyntaxOf('class'), 'rubyClass'
 
 Given markdown;
 ``` c++