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Filename : lang-vb.js
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// 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 various flavors of basic.
 *
 *
 * To use, include prettify.js and this file in your HTML page.
 * Then put your code in an HTML tag like
 *      <pre class="prettyprint lang-vb"></pre>
 *
 *
 * http://msdn.microsoft.com/en-us/library/aa711638(VS.71).aspx defines the
 * visual basic grammar lexical grammar.
 *
 * @author mikesamuel@gmail.com
 */

PR.registerLangHandler(
    PR.createSimpleLexer(
        [
         // Whitespace
         [PR.PR_PLAIN,       /^[\t\n\r \xA0\u2028\u2029]+/, null, '\t\n\r \xA0\u2028\u2029'],
         // A double quoted string with quotes escaped by doubling them.
         // A single character can be suffixed with C.
         [PR.PR_STRING,      /^(?:[\"\u201C\u201D](?:[^\"\u201C\u201D]|[\"\u201C\u201D]{2})(?:[\"\u201C\u201D]c|$)|[\"\u201C\u201D](?:[^\"\u201C\u201D]|[\"\u201C\u201D]{2})*(?:[\"\u201C\u201D]|$))/i, null,
          '"\u201C\u201D'],
         // A comment starts with a single quote and runs until the end of the
         // line.
         [PR.PR_COMMENT,     /^[\'\u2018\u2019][^\r\n\u2028\u2029]*/, null, '\'\u2018\u2019']
        ],
        [
         [PR.PR_KEYWORD, /^(?:AddHandler|AddressOf|Alias|And|AndAlso|Ansi|As|Assembly|Auto|Boolean|ByRef|Byte|ByVal|Call|Case|Catch|CBool|CByte|CChar|CDate|CDbl|CDec|Char|CInt|Class|CLng|CObj|Const|CShort|CSng|CStr|CType|Date|Decimal|Declare|Default|Delegate|Dim|DirectCast|Do|Double|Each|Else|ElseIf|End|EndIf|Enum|Erase|Error|Event|Exit|Finally|For|Friend|Function|Get|GetType|GoSub|GoTo|Handles|If|Implements|Imports|In|Inherits|Integer|Interface|Is|Let|Lib|Like|Long|Loop|Me|Mod|Module|MustInherit|MustOverride|MyBase|MyClass|Namespace|New|Next|Not|NotInheritable|NotOverridable|Object|On|Option|Optional|Or|OrElse|Overloads|Overridable|Overrides|ParamArray|Preserve|Private|Property|Protected|Public|RaiseEvent|ReadOnly|ReDim|RemoveHandler|Resume|Return|Select|Set|Shadows|Shared|Short|Single|Static|Step|Stop|String|Structure|Sub|SyncLock|Then|Throw|To|Try|TypeOf|Unicode|Until|Variant|Wend|When|While|With|WithEvents|WriteOnly|Xor|EndIf|GoSub|Let|Variant|Wend)\b/i, null],
         // A second comment form
         [PR.PR_COMMENT, /^REM[^\r\n\u2028\u2029]*/i],
         // A boolean, numeric, or date literal.
         [PR.PR_LITERAL,
          /^(?:True\b|False\b|Nothing\b|\d+(?:E[+\-]?\d+[FRD]?|[FRDSIL])?|(?:&H[0-9A-F]+|&O[0-7]+)[SIL]?|\d*\.\d+(?:E[+\-]?\d+)?[FRD]?|#\s+(?:\d+[\-\/]\d+[\-\/]\d+(?:\s+\d+:\d+(?::\d+)?(\s*(?:AM|PM))?)?|\d+:\d+(?::\d+)?(\s*(?:AM|PM))?)\s+#)/i],
         // An identifier?
         [PR.PR_PLAIN, /^(?:(?:[a-z]|_\w)\w*|\[(?:[a-z]|_\w)\w*\])/i],
         // A run of punctuation
         [PR.PR_PUNCTUATION,
          /^[^\w\t\n\r \"\'\[\]\xA0\u2018\u2019\u201C\u201D\u2028\u2029]+/],
         // Square brackets
         [PR.PR_PUNCTUATION, /^(?:\[|\])/]
        ]),
    ['vb', 'vbs']);