Move doc generator out of frog samples.

utils/dartdoc/classify.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.
-#import('../lang.dart');
 
 /**
  * Kinds of tokens that we care to highlight differently. The values of the
  * fields here will be used as CSS class names for the generated spans.

[jimhug, 2011/11/11 18:02:31]

Hmm...  I think that this code should find its way back into frog - at least
over time.  It would be really nice if this could be used here, and in the
dartboard and in other places.  Don't do anything about this yet, but when you
or John starts up serious dartboard work, please figure out how to get this in a
shared place.

[Bob Nystrom, 2011/11/11 18:21:28]

Yeah, I was think of splitting this out into a standalone syntax highlighting
library at some point. I'm not sure if it should be Dart-specific or if we'll
want something closer to a Dart implementation of pygments (which would be handy
since we'll probably want to highlight HTML and CSS at some point, at the very
least).

  */
 class Classification {
   static final NONE = null;
   static final ERROR = "e";
   static final COMMENT = "c";
   static final IDENTIFIER = "i";
   static final KEYWORD = "k";
   static final OPERATOR = "o";
   static final STRING = "s";
   static final NUMBER = "n";
@@ skipping 223 matching lines @@
       return Classification.KEYWORD;
 
     case TokenKind.WHITESPACE:
     case TokenKind.END_OF_FILE:
       return Classification.NONE;
 
     default:
       return Classification.NONE;
   }
 }