Syntax highlight Rails functions in CoffeeScript

Author: tpope

autoload/rails.vim

@@ -3664,7 +3664,7 @@ function! s:BufSyntax()
       set isk+=$
       exe "syn keyword javascriptRailsFunction contained ".s:javascript_functions
       syn cluster htmlJavaScript add=javascriptRailsFunction
-    elseif &syntax == "javascript"
+    elseif &syntax == "javascript" || &syntax == "coffee"
       " The syntax file included with Vim incorrectly sets syn case ignore.
       syn case match
       set isk+=$
@@ -4729,7 +4729,7 @@ augroup railsPluginAuto
   autocmd BufWritePost */tasks/**.rake            call rails#cache_clear("rake_tasks")
   autocmd BufWritePost */generators/**            call rails#cache_clear("generators")
   autocmd FileType * if exists("b:rails_root") | call s:BufSettings() | endif
-  autocmd Syntax ruby,eruby,yaml,haml,javascript,railslog if exists("b:rails_root") | call s:BufSyntax() | endif
+  autocmd Syntax ruby,eruby,yaml,haml,javascript,coffee,railslog if exists("b:rails_root") | call s:BufSyntax() | endif
   autocmd QuickFixCmdPre  make* call s:push_chdir()
   autocmd QuickFixCmdPost make* call s:pop_command()
 augroup END