1d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen/* Generated By:JavaCC: Do not edit this line. ParseException.java Version 3.0 */ 2d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen/* 3d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * Copyright 2004 the mime4j project 4d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * 5d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * Licensed under the Apache License, Version 2.0 (the "License"); 6d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * you may not use this file except in compliance with the License. 7d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * You may obtain a copy of the License at 8d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * 9d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * http://www.apache.org/licenses/LICENSE-2.0 10d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * 11d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * Unless required by applicable law or agreed to in writing, software 12d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * distributed under the License is distributed on an "AS IS" BASIS, 13d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * See the License for the specific language governing permissions and 15d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * limitations under the License. 16d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen */ 17d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chenpackage org.apache.james.mime4j.field.contenttype.parser; 18d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen 19d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen/** 20d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * This exception is thrown when parse errors are encountered. 21d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * You can explicitly create objects of this exception type by 22d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * calling the method generateParseException in the generated 23d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * parser. 24d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * 25d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * You can modify this class to customize your error reporting 26d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * mechanisms so long as you retain the public fields. 27d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen */ 28d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chenpublic class ParseException extends Exception { 29d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen 30d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen /** 31d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * This constructor is used by the method "generateParseException" 32d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * in the generated parser. Calling this constructor generates 33d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * a new object of this type with the fields "currentToken", 34d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * "expectedTokenSequences", and "tokenImage" set. The boolean 35d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * flag "specialConstructor" is also set to true to indicate that 36d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * this constructor was used to create this object. 37d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * This constructor calls its super class with the empty string 38d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * to force the "toString" method of parent class "Throwable" to 39d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * print the error message in the form: 40d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * ParseException: <result of getMessage> 41d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen */ 42d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen public ParseException(Token currentTokenVal, 43d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen int[][] expectedTokenSequencesVal, 44d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen String[] tokenImageVal 45d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen ) 46d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen { 47d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen super(""); 48d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen specialConstructor = true; 49d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen currentToken = currentTokenVal; 50d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen expectedTokenSequences = expectedTokenSequencesVal; 51d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen tokenImage = tokenImageVal; 52d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 53d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen 54d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen /** 55d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * The following constructors are for use by you for whatever 56d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * purpose you can think of. Constructing the exception in this 57d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * manner makes the exception behave in the normal way - i.e., as 58d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * documented in the class "Throwable". The fields "errorToken", 59d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * "expectedTokenSequences", and "tokenImage" do not contain 60d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * relevant information. The JavaCC generated code does not use 61d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * these constructors. 62d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen */ 63d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen 64d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen public ParseException() { 65d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen super(); 66d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen specialConstructor = false; 67d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 68d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen 69d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen public ParseException(String message) { 70d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen super(message); 71d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen specialConstructor = false; 72d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 73d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen 74d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen /** 75d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * This variable determines which constructor was used to create 76d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * this object and thereby affects the semantics of the 77d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * "getMessage" method (see below). 78d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen */ 79d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen protected boolean specialConstructor; 80d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen 81d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen /** 82d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * This is the last token that has been consumed successfully. If 83d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * this object has been created due to a parse error, the token 84d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * followng this token will (therefore) be the first error token. 85d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen */ 86d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen public Token currentToken; 87d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen 88d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen /** 89d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * Each entry in this array is an array of integers. Each array 90d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * of integers represents a sequence of tokens (by their ordinal 91d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * values) that is expected at this point of the parse. 92d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen */ 93d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen public int[][] expectedTokenSequences; 94d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen 95d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen /** 96d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * This is a reference to the "tokenImage" array of the generated 97d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * parser within which the parse error occurred. This array is 98d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * defined in the generated ...Constants interface. 99d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen */ 100d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen public String[] tokenImage; 101d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen 102d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen /** 103d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * This method has the standard behavior when this object has been 104d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * created using the standard constructors. Otherwise, it uses 105d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * "currentToken" and "expectedTokenSequences" to generate a parse 106d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * error message and returns it. If this object has been created 107d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * due to a parse error, and you do not catch it (it gets thrown 108d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * from the parser), then this method is called during the printing 109d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * of the final stack trace, and hence the correct error message 110d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * gets displayed. 111d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen */ 112d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen public String getMessage() { 113d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen if (!specialConstructor) { 114d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen return super.getMessage(); 115d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 116d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen StringBuffer expected = new StringBuffer(); 117d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen int maxSize = 0; 118d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen for (int i = 0; i < expectedTokenSequences.length; i++) { 119d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen if (maxSize < expectedTokenSequences[i].length) { 120d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen maxSize = expectedTokenSequences[i].length; 121d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 122d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen for (int j = 0; j < expectedTokenSequences[i].length; j++) { 123d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen expected.append(tokenImage[expectedTokenSequences[i][j]]).append(" "); 124d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 125d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) { 126d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen expected.append("..."); 127d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 128d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen expected.append(eol).append(" "); 129d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 130d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen String retval = "Encountered \""; 131d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen Token tok = currentToken.next; 132d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen for (int i = 0; i < maxSize; i++) { 133d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen if (i != 0) retval += " "; 134d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen if (tok.kind == 0) { 135d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval += tokenImage[0]; 136d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen break; 137d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 138d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval += add_escapes(tok.image); 139d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen tok = tok.next; 140d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 141d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn; 142d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval += "." + eol; 143d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen if (expectedTokenSequences.length == 1) { 144d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval += "Was expecting:" + eol + " "; 145d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } else { 146d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval += "Was expecting one of:" + eol + " "; 147d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 148d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval += expected.toString(); 149d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen return retval; 150d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 151d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen 152d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen /** 153d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * The end of line string for this machine. 154d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen */ 155d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen protected String eol = System.getProperty("line.separator", "\n"); 156d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen 157d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen /** 158d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * Used to convert raw characters to their escaped version 159d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * when these raw version cannot be used as part of an ASCII 160d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen * string literal. 161d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen */ 162d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen protected String add_escapes(String str) { 163d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen StringBuffer retval = new StringBuffer(); 164d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen char ch; 165d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen for (int i = 0; i < str.length(); i++) { 166d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen switch (str.charAt(i)) 167d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen { 168d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen case 0 : 169d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen continue; 170d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen case '\b': 171d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval.append("\\b"); 172d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen continue; 173d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen case '\t': 174d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval.append("\\t"); 175d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen continue; 176d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen case '\n': 177d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval.append("\\n"); 178d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen continue; 179d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen case '\f': 180d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval.append("\\f"); 181d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen continue; 182d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen case '\r': 183d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval.append("\\r"); 184d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen continue; 185d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen case '\"': 186d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval.append("\\\""); 187d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen continue; 188d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen case '\'': 189d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval.append("\\\'"); 190d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen continue; 191d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen case '\\': 192d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval.append("\\\\"); 193d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen continue; 194d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen default: 195d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) { 196d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen String s = "0000" + Integer.toString(ch, 16); 197d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval.append("\\u" + s.substring(s.length() - 4, s.length())); 198d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } else { 199d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen retval.append(ch); 200d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 201d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen continue; 202d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 203d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 204d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen return retval.toString(); 205d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen } 206d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen 207d186a38568ddec7efcba054ccc2fe8ed9b8945fcNancy Chen} 208