1/** 2 * @license 3 * Copyright (C) 2009 Google Inc. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18/** 19 * @fileoverview 20 * Registers a language handler for various flavors of basic. 21 * 22 * 23 * To use, include prettify.js and this file in your HTML page. 24 * Then put your code in an HTML tag like 25 * <pre class="prettyprint lang-vb"></pre> 26 * 27 * 28 * http://msdn.microsoft.com/en-us/library/aa711638(VS.71).aspx defines the 29 * visual basic grammar lexical grammar. 30 * 31 * @author mikesamuel@gmail.com 32 */ 33 34PR['registerLangHandler']( 35 PR['createSimpleLexer']( 36 [ 37 // Whitespace 38 [PR['PR_PLAIN'], /^[\t\n\r \xA0\u2028\u2029]+/, null, '\t\n\r \xA0\u2028\u2029'], 39 // A double quoted string with quotes escaped by doubling them. 40 // A single character can be suffixed with C. 41 [PR['PR_STRING'], /^(?:[\"\u201C\u201D](?:[^\"\u201C\u201D]|[\"\u201C\u201D]{2})(?:[\"\u201C\u201D]c|$)|[\"\u201C\u201D](?:[^\"\u201C\u201D]|[\"\u201C\u201D]{2})*(?:[\"\u201C\u201D]|$))/i, null, 42 '"\u201C\u201D'], 43 // A comment starts with a single quote and runs until the end of the 44 // line. 45 // VB6 apparently allows _ as an escape sequence for newlines though 46 // this is not a documented feature of VB.net. 47 // http://meta.stackoverflow.com/q/121497/137403 48 [PR['PR_COMMENT'], /^[\'\u2018\u2019](?:_(?:\r\n?|[^\r]?)|[^\r\n_\u2028\u2029])*/, null, '\'\u2018\u2019'] 49 ], 50 [ 51 [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], 52 // A second comment form 53 [PR['PR_COMMENT'], /^REM\b[^\r\n\u2028\u2029]*/i], 54 // A boolean, numeric, or date literal. 55 [PR['PR_LITERAL'], 56 /^(?: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], 57 // An identifier. Keywords can be turned into identifers 58 // with square brackets, and there may be optional type 59 // characters after a normal identifier in square brackets. 60 [PR['PR_PLAIN'], /^(?:(?:[a-z]|_\w)\w*(?:\[[%&@!#]+\])?|\[(?:[a-z]|_\w)\w*\])/i], 61 // A run of punctuation 62 [PR['PR_PUNCTUATION'], 63 /^[^\w\t\n\r \"\'\[\]\xA0\u2018\u2019\u201C\u201D\u2028\u2029]+/], 64 // Square brackets 65 [PR['PR_PUNCTUATION'], /^(?:\[|\])/] 66 ]), 67 ['vb', 'vbs']); 68