1 /* 2 * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 /* Generated By:JavaCC: Do not edit this line. ParseException.java Version 0.7pre6 */ 27 package com.sun.jmx.snmp.IPAcl; 28 29 /** 30 * This exception is thrown when parse errors are encountered. 31 * You can explicitly create objects of this exception type by 32 * calling the method generateParseException in the generated 33 * parser. 34 * 35 * You can modify this class to customize your error reporting 36 * mechanisms so long as you retain the public fields. 37 */ 38 class ParseException extends Exception { 39 private static final long serialVersionUID = -3695190720704845876L; 40 41 /** 42 * This constructor is used by the method "generateParseException" 43 * in the generated parser. Calling this constructor generates 44 * a new object of this type with the fields "currentToken", 45 * "expectedTokenSequences", and "tokenImage" set. The boolean 46 * flag "specialConstructor" is also set to true to indicate that 47 * this constructor was used to create this object. 48 * This constructor calls its super class with the empty string 49 * to force the "toString" method of parent class "Throwable" to 50 * print the error message in the form: 51 * ParseException: <result of getMessage> 52 */ ParseException(Token currentTokenVal, int[][] expectedTokenSequencesVal, String[] tokenImageVal )53 public ParseException(Token currentTokenVal, 54 int[][] expectedTokenSequencesVal, 55 String[] tokenImageVal 56 ) 57 { 58 super(""); 59 specialConstructor = true; 60 currentToken = currentTokenVal; 61 expectedTokenSequences = expectedTokenSequencesVal; 62 tokenImage = tokenImageVal; 63 } 64 65 /** 66 * The following constructors are for use by you for whatever 67 * purpose you can think of. Constructing the exception in this 68 * manner makes the exception behave in the normal way - i.e., as 69 * documented in the class "Throwable". The fields "errorToken", 70 * "expectedTokenSequences", and "tokenImage" do not contain 71 * relevant information. The JavaCC generated code does not use 72 * these constructors. 73 */ 74 ParseException()75 public ParseException() { 76 super(); 77 specialConstructor = false; 78 } 79 ParseException(String message)80 public ParseException(String message) { 81 super(message); 82 specialConstructor = false; 83 } 84 85 /** 86 * This variable determines which constructor was used to create 87 * this object and thereby affects the semantics of the 88 * "getMessage" method (see below). 89 */ 90 protected boolean specialConstructor; 91 92 /** 93 * This is the last token that has been consumed successfully. If 94 * this object has been created due to a parse error, the token 95 * followng this token will (therefore) be the first error token. 96 */ 97 public Token currentToken; 98 99 /** 100 * Each entry in this array is an array of integers. Each array 101 * of integers represents a sequence of tokens (by their ordinal 102 * values) that is expected at this point of the parse. 103 */ 104 public int[][] expectedTokenSequences; 105 106 /** 107 * This is a reference to the "tokenImage" array of the generated 108 * parser within which the parse error occurred. This array is 109 * defined in the generated ...Constants interface. 110 */ 111 public String[] tokenImage; 112 113 /** 114 * This method has the standard behavior when this object has been 115 * created using the standard constructors. Otherwise, it uses 116 * "currentToken" and "expectedTokenSequences" to generate a parse 117 * error message and returns it. If this object has been created 118 * due to a parse error, and you do not catch it (it gets thrown 119 * from the parser), then this method is called during the printing 120 * of the final stack trace, and hence the correct error message 121 * gets displayed. 122 */ getMessage()123 public String getMessage() { 124 if (!specialConstructor) { 125 return super.getMessage(); 126 } 127 String expected = ""; 128 int maxSize = 0; 129 for (int i = 0; i < expectedTokenSequences.length; i++) { 130 if (maxSize < expectedTokenSequences[i].length) { 131 maxSize = expectedTokenSequences[i].length; 132 } 133 for (int j = 0; j < expectedTokenSequences[i].length; j++) { 134 expected += tokenImage[expectedTokenSequences[i][j]] + " "; 135 } 136 if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) { 137 expected += "..."; 138 } 139 expected += eol + " "; 140 } 141 String retval = "Encountered \""; 142 Token tok = currentToken.next; 143 for (int i = 0; i < maxSize; i++) { 144 if (i != 0) retval += " "; 145 if (tok.kind == 0) { 146 retval += tokenImage[0]; 147 break; 148 } 149 retval += add_escapes(tok.image); 150 tok = tok.next; 151 } 152 retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn + "." + eol; 153 if (expectedTokenSequences.length == 1) { 154 retval += "Was expecting:" + eol + " "; 155 } else { 156 retval += "Was expecting one of:" + eol + " "; 157 } 158 retval += expected; 159 return retval; 160 } 161 162 /** 163 * The end of line string for this machine. 164 */ 165 protected String eol = System.getProperty("line.separator", "\n"); 166 167 /** 168 * Used to convert raw characters to their escaped version 169 * when these raw version cannot be used as part of an ASCII 170 * string literal. 171 */ add_escapes(String str)172 protected String add_escapes(String str) { 173 StringBuffer retval = new StringBuffer(); 174 char ch; 175 for (int i = 0; i < str.length(); i++) { 176 switch (str.charAt(i)) 177 { 178 case 0 : 179 continue; 180 case '\b': 181 retval.append("\\b"); 182 continue; 183 case '\t': 184 retval.append("\\t"); 185 continue; 186 case '\n': 187 retval.append("\\n"); 188 continue; 189 case '\f': 190 retval.append("\\f"); 191 continue; 192 case '\r': 193 retval.append("\\r"); 194 continue; 195 case '\"': 196 retval.append("\\\""); 197 continue; 198 case '\'': 199 retval.append("\\\'"); 200 continue; 201 case '\\': 202 retval.append("\\\\"); 203 continue; 204 default: 205 if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) { 206 String s = "0000" + Integer.toString(ch, 16); 207 retval.append("\\u" + s.substring(s.length() - 4, s.length())); 208 } else { 209 retval.append(ch); 210 } 211 continue; 212 } 213 } 214 return retval.toString(); 215 } 216 217 } 218