livepreview.js in gollum-2.2.3

- old
+ new

@@ -193,16 +193,17 @@
     previewSet = ieSafePreviewSet;
   }
 };
 
 // 'c', 'c++', 'cpp' are github specific and transformed to c_cpp for Ace.
-var languages = [ 'c', 'c++', 'cpp', 'clojure', 'coffee', 'coldfusion',
- 'csharp', 'css', 'diff', 'golang', 'groovy', 'haxe', 'html',
- 'java', 'javascript', 'json', 'latex', 'less', 'liquid',
- 'lua', 'markdown', 'ocaml', 'perl', 'pgsql', 'php', 'powershell',
- 'python', 'ruby', 'scad', 'scala', 'scss', 'sh', 'sql', 'svg',
- 'textile', 'text', 'xml', 'xquery', 'yaml' ];
+// 'coffeescript' is transformed to 'coffee' for Ace.
+var languages = [ 'c', 'c++', 'cpp', 'clojure', 'coffee',
+  'coffeescript', 'coldfusion', 'csharp', 'css', 'diff', 'golang',
+  'groovy', 'haxe', 'html', 'java', 'javascript', 'json', 'latex',
+  'less', 'liquid', 'lua', 'markdown', 'ocaml', 'perl', 'pgsql', 'php',
+  'powershell', 'python', 'ruby', 'scad', 'scala', 'scss', 'sh', 'sql',
+  'svg', 'textile', 'text', 'xml', 'xquery', 'yaml' ];
 
 var staticHighlight = require( 'ace/ext/static_highlight' );
 var githubTheme = require( 'ace/theme/github' );
 var langModes = {};
 
@@ -299,9 +300,15 @@
         // which must trigger the 'c_cpp' mode in Ace.
         if ( declaredLanguage === 'c'   ||
              declaredLanguage === 'c++' ||
              declaredLanguage === 'cpp' ) {
           aceMode = 'c_cpp';
+        }
+
+        // Pygments's name for CoffeeScript is 'coffeescript', but Ace
+        // calls it 'coffee'.
+        if ( declaredLanguage === 'coffeescript' ) {
+          aceMode = 'coffee';
         }
 
         if ( $.inArray( declaredLanguage, languages ) === -1 ) {
           // Unsupported language.
           skipped++;