// Copyright (C) 2009 Google Inc.
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //      http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  
  /**
   * @fileoverview
   * Registers a language handler for Wiki pages.
   *
   * Based on WikiSyntax at http://code.google.com/p/support/wiki/WikiSyntax
   *
   * @author mikesamuel@gmail.com
   */
  
  PR['registerLangHandler'](
      PR['createSimpleLexer'](
          [
           // Whitespace
           [PR['PR_PLAIN'],       /^[\t \xA0a-gi-z0-9]+/, null,
            '\t \xA0abcdefgijklmnopqrstuvwxyz0123456789'],
           // Wiki formatting
           [PR['PR_PUNCTUATION'], /^[=*~\^\[\]]+/, null, '=*~^[]']
          ],
          [
           // Meta-info like #summary, #labels, etc.
           ['lang-wiki.meta',  /(?:^^|\r
  ?|
  )(#[a-z]+)\b/],
           // A WikiWord
           [PR['PR_LITERAL'],     /^(?:[A-Z][a-z][a-z0-9]+[A-Z][a-z][a-zA-Z0-9]+)\b/
            ],
           // A preformatted block in an unknown language
           ['lang-',           /^\{\{\{([\s\S]+?)\}\}\}/],
           // A block of source code in an unknown language
           ['lang-',           /^`([^\r
  `]+)`/],
           // An inline URL.
           [PR['PR_STRING'],
            /^https?:\/\/[^\/?#\s]*(?:\/[^?#\s]*)?(?:\?[^#\s]*)?(?:#\S*)?/i],
           [PR['PR_PLAIN'],       /^(?:\r
  |[\s\S])[^#=*~^A-Zh\{`\[\r
  ]*/]
          ]),
      ['wiki']);
  
  PR['registerLangHandler'](
      PR['createSimpleLexer']([[PR['PR_KEYWORD'], /^#[a-z]+/i, null, '#']], []),
      ['wiki.meta']);