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 */ 042package net.sourceforge.cobertura.javancss.parser; 043 044/** 045 * This exception is thrown when parse errors are encountered. 046 * You can explicitly create objects of this exception type by 047 * calling the method generateParseException in the generated 048 * parser. 049 * 050 * You can modify this class to customize your error reporting 051 * mechanisms so long as you retain the public fields. 052 */ 053public class ParseException extends Exception { 054 055 /** 056 * This constructor is used by the method "generateParseException" 057 * in the generated parser. Calling this constructor generates 058 * a new object of this type with the fields "currentToken", 059 * "expectedTokenSequences", and "tokenImage" set. The boolean 060 * flag "specialConstructor" is also set to true to indicate that 061 * this constructor was used to create this object. 062 * This constructor calls its super class with the empty string 063 * to force the "toString" method of parent class "Throwable" to 064 * print the error message in the form: 065 * ParseException: <result of getMessage> 066 */ 067 public ParseException(Token currentTokenVal, 068 int[][] expectedTokenSequencesVal, 069 String[] tokenImageVal 070 ) 071 { 072 super(""); 073 specialConstructor = true; 074 currentToken = currentTokenVal; 075 expectedTokenSequences = expectedTokenSequencesVal; 076 tokenImage = tokenImageVal; 077 } 078 079 /** 080 * The following constructors are for use by you for whatever 081 * purpose you can think of. Constructing the exception in this 082 * manner makes the exception behave in the normal way - i.e., as 083 * documented in the class "Throwable". The fields "errorToken", 084 * "expectedTokenSequences", and "tokenImage" do not contain 085 * relevant information. The JavaCC generated code does not use 086 * these constructors. 087 */ 088 089 public ParseException() { 090 super(); 091 specialConstructor = false; 092 } 093 094 /** Constructor with message. */ 095 public ParseException(String message) { 096 super(message); 097 specialConstructor = false; 098 } 099 100 /** 101 * This variable determines which constructor was used to create 102 * this object and thereby affects the semantics of the 103 * "getMessage" method (see below). 104 */ 105 protected boolean specialConstructor; 106 107 /** 108 * This is the last token that has been consumed successfully. If 109 * this object has been created due to a parse error, the token 110 * followng this token will (therefore) be the first error token. 111 */ 112 public Token currentToken; 113 114 /** 115 * Each entry in this array is an array of integers. Each array 116 * of integers represents a sequence of tokens (by their ordinal 117 * values) that is expected at this point of the parse. 118 */ 119 public int[][] expectedTokenSequences; 120 121 /** 122 * This is a reference to the "tokenImage" array of the generated 123 * parser within which the parse error occurred. This array is 124 * defined in the generated ...Constants interface. 125 */ 126 public String[] tokenImage; 127 128 /** 129 * This method has the standard behavior when this object has been 130 * created using the standard constructors. Otherwise, it uses 131 * "currentToken" and "expectedTokenSequences" to generate a parse 132 * error message and returns it. If this object has been created 133 * due to a parse error, and you do not catch it (it gets thrown 134 * from the parser), then this method is called during the printing 135 * of the final stack trace, and hence the correct error message 136 * gets displayed. 137 */ 138 public String getMessage() { 139 if (!specialConstructor) { 140 return super.getMessage(); 141 } 142 StringBuffer expected = new StringBuffer(); 143 int maxSize = 0; 144 for (int i = 0; i < expectedTokenSequences.length; i++) { 145 if (maxSize < expectedTokenSequences[i].length) { 146 maxSize = expectedTokenSequences[i].length; 147 } 148 for (int j = 0; j < expectedTokenSequences[i].length; j++) { 149 expected.append(tokenImage[expectedTokenSequences[i][j]]).append(' '); 150 } 151 if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) { 152 expected.append("..."); 153 } 154 expected.append(eol).append(" "); 155 } 156 String retval = "Encountered \""; 157 Token tok = currentToken.next; 158 for (int i = 0; i < maxSize; i++) { 159 if (i != 0) retval += " "; 160 if (tok.kind == 0) { 161 retval += tokenImage[0]; 162 break; 163 } 164 retval += " " + tokenImage[tok.kind]; 165 retval += " \""; 166 retval += add_escapes(tok.image); 167 retval += " \""; 168 tok = tok.next; 169 } 170 retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn; 171 retval += "." + eol; 172 if (expectedTokenSequences.length == 1) { 173 retval += "Was expecting:" + eol + " "; 174 } else { 175 retval += "Was expecting one of:" + eol + " "; 176 } 177 retval += expected.toString(); 178 return retval; 179 } 180 181 /** 182 * The end of line string for this machine. 183 */ 184 protected String eol = System.getProperty("line.separator", "\n"); 185 186 /** 187 * Used to convert raw characters to their escaped version 188 * when these raw version cannot be used as part of an ASCII 189 * string literal. 190 */ 191 protected String add_escapes(String str) { 192 StringBuffer retval = new StringBuffer(); 193 char ch; 194 for (int i = 0; i < str.length(); i++) { 195 switch (str.charAt(i)) 196 { 197 case 0 : 198 continue; 199 case '\b': 200 retval.append("\\b"); 201 continue; 202 case '\t': 203 retval.append("\\t"); 204 continue; 205 case '\n': 206 retval.append("\\n"); 207 continue; 208 case '\f': 209 retval.append("\\f"); 210 continue; 211 case '\r': 212 retval.append("\\r"); 213 continue; 214 case '\"': 215 retval.append("\\\""); 216 continue; 217 case '\'': 218 retval.append("\\\'"); 219 continue; 220 case '\\': 221 retval.append("\\\\"); 222 continue; 223 default: 224 if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) { 225 String s = "0000" + Integer.toString(ch, 16); 226 retval.append("\\u" + s.substring(s.length() - 4, s.length())); 227 } else { 228 retval.append(ch); 229 } 230 continue; 231 } 232 } 233 return retval.toString(); 234 } 235 236} 237/* JavaCC - OriginalChecksum=eec5d34c12605d6ebeb9f1cfb93d3676 (do not edit this line) */