001/* 002 * Cobertura - http://cobertura.sourceforge.net/ 003 * 004 * This file was taken from JavaNCSS 005 * http://www.kclee.com/clemens/java/javancss/ 006 * Copyright (C) 2000 Chr. Clemens Lee <clemens a.t kclee d.o.t com> 007 * 008 * Cobertura is free software; you can redistribute it and/or modify 009 * it under the terms of the GNU General Public License as published 010 * by the Free Software Foundation; either version 2 of the License, 011 * or (at your option) any later version. 012 * 013 * Cobertura is distributed in the hope that it will be useful, but 014 * WITHOUT ANY WARRANTY; without even the implied warranty of 015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 016 * General Public License for more details. 017 * 018 * You should have received a copy of the GNU General Public License 019 * along with Cobertura; if not, write to the Free Software 020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 021 * USA 022 */ 023 024 025/* 026 * 027 * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING 028 * 029 * WARNING TO COBERTURA DEVELOPERS 030 * 031 * DO NOT MODIFY THIS FILE! 032 * 033 * MODIFY THE FILES UNDER THE JAVANCSS DIRECTORY LOCATED AT THE ROOT OF THE COBERTURA PROJECT. 034 * 035 * FOLLOW THE PROCEDURE FOR MERGING THE LATEST JAVANCSS INTO COBERTURA LOCATED AT 036 * javancss/coberturaREADME.txt 037 * 038 * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING 039 */ 040/* Generated By:JavaCC: Do not edit this line. ParseException.java Version 4.1 */ 041/* JavaCCOptions:KEEP_LINE_COL=null */ 042//cobertura - put the import on its own line - otherwise, it messes up the script that changes the package. 043package net.sourceforge.cobertura.javancss.parser.debug; 044 045/** 046 * This exception is thrown when parse errors are encountered. 047 * You can explicitly create objects of this exception type by 048 * calling the method generateParseException in the generated 049 * parser. 050 * 051 * You can modify this class to customize your error reporting 052 * mechanisms so long as you retain the public fields. 053 */ 054public class ParseException extends Exception { 055 056 /** 057 * This constructor is used by the method "generateParseException" 058 * in the generated parser. Calling this constructor generates 059 * a new object of this type with the fields "currentToken", 060 * "expectedTokenSequences", and "tokenImage" set. The boolean 061 * flag "specialConstructor" is also set to true to indicate that 062 * this constructor was used to create this object. 063 * This constructor calls its super class with the empty string 064 * to force the "toString" method of parent class "Throwable" to 065 * print the error message in the form: 066 * ParseException: <result of getMessage> 067 */ 068 public ParseException(Token currentTokenVal, 069 int[][] expectedTokenSequencesVal, 070 String[] tokenImageVal 071 ) 072 { 073 super(""); 074 specialConstructor = true; 075 currentToken = currentTokenVal; 076 expectedTokenSequences = expectedTokenSequencesVal; 077 tokenImage = tokenImageVal; 078 } 079 080 /** 081 * The following constructors are for use by you for whatever 082 * purpose you can think of. Constructing the exception in this 083 * manner makes the exception behave in the normal way - i.e., as 084 * documented in the class "Throwable". The fields "errorToken", 085 * "expectedTokenSequences", and "tokenImage" do not contain 086 * relevant information. The JavaCC generated code does not use 087 * these constructors. 088 */ 089 090 public ParseException() { 091 super(); 092 specialConstructor = false; 093 } 094 095 /** Constructor with message. */ 096 public ParseException(String message) { 097 super(message); 098 specialConstructor = false; 099 } 100 101 /** 102 * This variable determines which constructor was used to create 103 * this object and thereby affects the semantics of the 104 * "getMessage" method (see below). 105 */ 106 protected boolean specialConstructor; 107 108 /** 109 * This is the last token that has been consumed successfully. If 110 * this object has been created due to a parse error, the token 111 * followng this token will (therefore) be the first error token. 112 */ 113 public Token currentToken; 114 115 /** 116 * Each entry in this array is an array of integers. Each array 117 * of integers represents a sequence of tokens (by their ordinal 118 * values) that is expected at this point of the parse. 119 */ 120 public int[][] expectedTokenSequences; 121 122 /** 123 * This is a reference to the "tokenImage" array of the generated 124 * parser within which the parse error occurred. This array is 125 * defined in the generated ...Constants interface. 126 */ 127 public String[] tokenImage; 128 129 /** 130 * This method has the standard behavior when this object has been 131 * created using the standard constructors. Otherwise, it uses 132 * "currentToken" and "expectedTokenSequences" to generate a parse 133 * error message and returns it. If this object has been created 134 * due to a parse error, and you do not catch it (it gets thrown 135 * from the parser), then this method is called during the printing 136 * of the final stack trace, and hence the correct error message 137 * gets displayed. 138 */ 139 public String getMessage() { 140 if (!specialConstructor) { 141 return super.getMessage(); 142 } 143 StringBuffer expected = new StringBuffer(); 144 int maxSize = 0; 145 for (int i = 0; i < expectedTokenSequences.length; i++) { 146 if (maxSize < expectedTokenSequences[i].length) { 147 maxSize = expectedTokenSequences[i].length; 148 } 149 for (int j = 0; j < expectedTokenSequences[i].length; j++) { 150 expected.append(tokenImage[expectedTokenSequences[i][j]]).append(' '); 151 } 152 if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) { 153 expected.append("..."); 154 } 155 expected.append(eol).append(" "); 156 } 157 String retval = "Encountered \""; 158 Token tok = currentToken.next; 159 for (int i = 0; i < maxSize; i++) { 160 if (i != 0) retval += " "; 161 if (tok.kind == 0) { 162 retval += tokenImage[0]; 163 break; 164 } 165 retval += " " + tokenImage[tok.kind]; 166 retval += " \""; 167 retval += add_escapes(tok.image); 168 retval += " \""; 169 tok = tok.next; 170 } 171 retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn; 172 retval += "." + eol; 173 if (expectedTokenSequences.length == 1) { 174 retval += "Was expecting:" + eol + " "; 175 } else { 176 retval += "Was expecting one of:" + eol + " "; 177 } 178 retval += expected.toString(); 179 return retval; 180 } 181 182 /** 183 * The end of line string for this machine. 184 */ 185 protected String eol = System.getProperty("line.separator", "\n"); 186 187 /** 188 * Used to convert raw characters to their escaped version 189 * when these raw version cannot be used as part of an ASCII 190 * string literal. 191 */ 192 protected String add_escapes(String str) { 193 StringBuffer retval = new StringBuffer(); 194 char ch; 195 for (int i = 0; i < str.length(); i++) { 196 switch (str.charAt(i)) 197 { 198 case 0 : 199 continue; 200 case '\b': 201 retval.append("\\b"); 202 continue; 203 case '\t': 204 retval.append("\\t"); 205 continue; 206 case '\n': 207 retval.append("\\n"); 208 continue; 209 case '\f': 210 retval.append("\\f"); 211 continue; 212 case '\r': 213 retval.append("\\r"); 214 continue; 215 case '\"': 216 retval.append("\\\""); 217 continue; 218 case '\'': 219 retval.append("\\\'"); 220 continue; 221 case '\\': 222 retval.append("\\\\"); 223 continue; 224 default: 225 if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) { 226 String s = "0000" + Integer.toString(ch, 16); 227 retval.append("\\u" + s.substring(s.length() - 4, s.length())); 228 } else { 229 retval.append(ch); 230 } 231 continue; 232 } 233 } 234 return retval.toString(); 235 } 236 237} 238/* JavaCC - OriginalChecksum=6eae69b5cf5d7df7e9ccf1374b0e97f1 (do not edit this line) */