Syntax highlighting on the client.

utils/dartdoc/dartdoc.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * To use it, from this directory, run:
  *
  *     $ ./dartdoc <path to .dart file>
  *
  * This will create a "docs" directory with the docs for your libraries. To
@@ skipping 552 matching lines @@
    * is `true` (and [includeSource] is set), also includes the source code.
    */
   docCode(SourceSpan span, String comment, [bool showCode = false]) {
     writeln('<div class="doc">');
     if (comment != null) {
       writeln(md.markdownToHtml(comment));
     }
 
     if (includeSource && showCode) {
       writeln('<pre class="source">');
-      write(formatCode(span));
+      writeln(md.escapeHtml(unindentCode(span)));
       writeln('</pre>');
     }
 
     writeln('</div>');
   }
 
   /** Get the doc comment associated with the given type. */
   String getTypeComment(Type type) => _comments.find(type.span);
 
   /** Get the doc comment associated with the given method. */
@@ skipping 108 matching lines @@
     if (typeArgs != null) {
       final args = Strings.join(map(typeArgs, (arg) => typeName(arg)), ', ');
       return '${type.genericType.name}&lt;$args&gt;';
     }
 
     // Regular type.
     return type.name;
   }
 
   /**
-   * Takes a string of Dart code and turns it into sanitized HTML.
+   * Remove leading indentation to line up with first line.
    */
-  formatCode(SourceSpan span) {
-    // Remove leading indentation to line up with first line.
+  unindentCode(SourceSpan span) {
     final column = getSpanColumn(span);
     final lines = span.text.split('\n');
     // TODO(rnystrom): Dirty hack.
     for (final i = 1; i < lines.length; i++) {
       lines[i] = unindent(lines[i], column);
     }
 
     final code = Strings.join(lines, '\n');
+    return code;
+  }
+
+  /**
+   * Takes a string of Dart code and turns it into sanitized HTML.
+   */
+  formatCode(SourceSpan span) {
+    final code = unindentCode(span);
 
     // Syntax highlight.
     return classifySource(new SourceFile('', code));
   }
 
   /**
    * This will be called whenever a doc comment hits a `[name]` in square
    * brackets. It will try to figure out what the name refers to and link or
    * style it appropriately.
    */
@@ skipping 58 matching lines @@
 
     return new md.Element.text('code', name);
   }
 
   // TODO(rnystrom): Move into SourceSpan?
   int getSpanColumn(SourceSpan span) {
     final line = span.file.getLine(span.start);
     return span.file.getColumn(line, span.start);
   }
 }