1 /* 2 * [The "BSD licence"] 3 * Copyright (c) 2005-2008 Terence Parr 4 * All rights reserved. 5 * 6 * Conversion to C#: 7 * Copyright (c) 2008-2009 Sam Harwell, Pixel Mine, Inc. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 namespace Antlr.Runtime 34 { 35 /** <summary> 36 * A Token object like we'd use in ANTLR 2.x; has an actual string created 37 * and associated with this object. These objects are needed for imaginary 38 * tree nodes that have payload objects. We need to create a Token object 39 * that has a string; the tree node will point at this token. CommonToken 40 * has indexes into a char stream and hence cannot be used to introduce 41 * new strings. 42 * </summary> 43 */ 44 [System.Serializable] 45 public class ClassicToken : IToken 46 { 47 string text; 48 int type; 49 int line; 50 int charPositionInLine; 51 int channel = TokenChannels.Default; 52 53 /** <summary>What token number is this from 0..n-1 tokens</summary> */ 54 int index; 55 ClassicToken( int type )56 public ClassicToken( int type ) 57 { 58 this.type = type; 59 } 60 ClassicToken( IToken oldToken )61 public ClassicToken( IToken oldToken ) 62 { 63 text = oldToken.Text; 64 type = oldToken.Type; 65 line = oldToken.Line; 66 charPositionInLine = oldToken.CharPositionInLine; 67 channel = oldToken.Channel; 68 } 69 ClassicToken( int type, string text )70 public ClassicToken( int type, string text ) 71 { 72 this.type = type; 73 this.text = text; 74 } 75 ClassicToken( int type, string text, int channel )76 public ClassicToken( int type, string text, int channel ) 77 { 78 this.type = type; 79 this.text = text; 80 this.channel = channel; 81 } 82 83 #region IToken Members 84 public string Text 85 { 86 get 87 { 88 return text; 89 } 90 set 91 { 92 text = value; 93 } 94 } 95 96 public int Type 97 { 98 get 99 { 100 return type; 101 } 102 set 103 { 104 type = value; 105 } 106 } 107 108 public int Line 109 { 110 get 111 { 112 return line; 113 } 114 set 115 { 116 line = value; 117 } 118 } 119 120 public int CharPositionInLine 121 { 122 get 123 { 124 return charPositionInLine; 125 } 126 set 127 { 128 charPositionInLine = value; 129 } 130 } 131 132 public int Channel 133 { 134 get 135 { 136 return channel; 137 } 138 set 139 { 140 channel = value; 141 } 142 } 143 144 public int StartIndex 145 { 146 get 147 { 148 return -1; 149 } 150 set 151 { 152 } 153 } 154 155 public int StopIndex 156 { 157 get 158 { 159 return -1; 160 } 161 set 162 { 163 } 164 } 165 166 public int TokenIndex 167 { 168 get 169 { 170 return index; 171 } 172 set 173 { 174 index = value; 175 } 176 } 177 178 public ICharStream InputStream 179 { 180 get 181 { 182 return null; 183 } 184 set 185 { 186 } 187 } 188 189 #endregion 190 ToString()191 public override string ToString() 192 { 193 string channelStr = ""; 194 if ( channel > 0 ) 195 { 196 channelStr = ",channel=" + channel; 197 } 198 string txt = Text; 199 if ( txt != null ) 200 { 201 txt = txt.Replace( "\n", "\\\\n" ); 202 txt = txt.Replace( "\r", "\\\\r" ); 203 txt = txt.Replace( "\t", "\\\\t" ); 204 } 205 else 206 { 207 txt = "<no text>"; 208 } 209 return "[@" + TokenIndex + ",'" + txt + "',<" + type + ">" + channelStr + "," + line + ":" + CharPositionInLine + "]"; 210 } 211 } 212 } 213