1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. 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 /* Generated By:JavaCC: Do not edit this line. Token.java Version 0.7pre3 */ 19 package Mini; 20 21 /** 22 * Describes the input token stream. 23 */ 24 25 public class Token { 26 27 /** 28 * An integer that describes the kind of this token. This numbering 29 * system is determined by JavaCCParser, and a table of these numbers is 30 * stored in the file ...Constants.java. 31 */ 32 public int kind; 33 34 /** 35 * beginLine and beginColumn describe the position of the first character 36 * of this token; endLine and endColumn describe the position of the 37 * last character of this token. 38 */ 39 public int beginLine, beginColumn, endLine, endColumn; 40 41 /** 42 * The string image of the token. 43 */ 44 public String image; 45 46 /** 47 * A reference to the next regular (non-special) token from the input 48 * stream. If this is the last token from the input stream, or if the 49 * token manager has not read tokens beyond this one, this field is 50 * set to null. This is true only if this token is also a regular 51 * token. Otherwise, see below for a description of the contents of 52 * this field. 53 */ 54 public Token next; 55 56 /** 57 * This field is used to access special tokens that occur prior to this 58 * token, but after the immediately preceding regular (non-special) token. 59 * If there are no such special tokens, this field is set to null. 60 * When there are more than one such special token, this field refers 61 * to the last of these special tokens, which in turn refers to the next 62 * previous special token through its specialToken field, and so on 63 * until the first special token (whose specialToken field is null). 64 * The next fields of special tokens refer to other special tokens that 65 * immediately follow it (without an intervening regular token). If there 66 * is no such token, this field is null. 67 */ 68 public Token specialToken; 69 70 /** 71 * Returns the image. 72 */ 73 @Override 74 public final String toString() 75 { 76 return image; 77 } 78 79 /** 80 * Returns a new Token object, by default. However, if you want, you 81 * can create and return subclass objects based on the value of ofKind. 82 * Simply add the cases to the switch for all those special cases. 83 * For example, if you have a subclass of Token called IDToken that 84 * you want to create if ofKind is ID, simlpy add something like : 85 * 86 * case MyParserConstants.ID : return new IDToken(); 87 * 88 * to the following switch statement. Then you can cast matchedToken 89 * variable to the appropriate type and use it in your lexical actions. 90 */ 91 public static Token newToken(int ofKind) 92 { 93 switch(ofKind) 94 { 95 default : return new Token(); 96 } 97 } 98 99 } 100
