| 1 | /* Generated By:JavaCC: Do not edit this line. TokenMgrError.java Version 5.0 */ |
| 2 | /* JavaCCOptions: */ |
| 3 | /* |
| 4 | * Copyright (C) Christian Schulte, 2005-206 |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * |
| 11 | * o Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * |
| 14 | * o Redistributions in binary form must reproduce the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer in |
| 16 | * the documentation and/or other materials provided with the |
| 17 | * distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| 20 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY |
| 21 | * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| 22 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 24 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 25 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 28 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 | * |
| 30 | * $JOMC: VersionParser.jj 4613 2012-09-22 10:07:08Z schulte $ |
| 31 | * |
| 32 | */ |
| 33 | package org.jomc.util; |
| 34 | |
| 35 | /** Token Manager Error. */ |
| 36 | public class TokenMgrError extends Error |
| 37 | { |
| 38 | |
| 39 | /** |
| 40 | * The version identifier for this Serializable class. |
| 41 | * Increment only if the <i>serialized</i> form of the |
| 42 | * class changes. |
| 43 | */ |
| 44 | private static final long serialVersionUID = 1L; |
| 45 | |
| 46 | /* |
| 47 | * Ordinals for various reasons why an Error of this type can be thrown. |
| 48 | */ |
| 49 | |
| 50 | /** |
| 51 | * Lexical error occurred. |
| 52 | */ |
| 53 | static final int LEXICAL_ERROR = 0; |
| 54 | |
| 55 | /** |
| 56 | * An attempt was made to create a second instance of a static token manager. |
| 57 | */ |
| 58 | static final int STATIC_LEXER_ERROR = 1; |
| 59 | |
| 60 | /** |
| 61 | * Tried to change to an invalid lexical state. |
| 62 | */ |
| 63 | static final int INVALID_LEXICAL_STATE = 2; |
| 64 | |
| 65 | /** |
| 66 | * Detected (and bailed out of) an infinite loop in the token manager. |
| 67 | */ |
| 68 | static final int LOOP_DETECTED = 3; |
| 69 | |
| 70 | /** |
| 71 | * Indicates the reason why the exception is thrown. It will have |
| 72 | * one of the above 4 values. |
| 73 | */ |
| 74 | int errorCode; |
| 75 | |
| 76 | /** |
| 77 | * Replaces unprintable characters by their escaped (or unicode escaped) |
| 78 | * equivalents in the given string |
| 79 | */ |
| 80 | protected static final String addEscapes(String str) { |
| 81 | StringBuffer retval = new StringBuffer(); |
| 82 | char ch; |
| 83 | for (int i = 0; i < str.length(); i++) { |
| 84 | switch (str.charAt(i)) |
| 85 | { |
| 86 | case 0 : |
| 87 | continue; |
| 88 | case '\b': |
| 89 | retval.append("\\b"); |
| 90 | continue; |
| 91 | case '\t': |
| 92 | retval.append("\\t"); |
| 93 | continue; |
| 94 | case '\n': |
| 95 | retval.append("\\n"); |
| 96 | continue; |
| 97 | case '\f': |
| 98 | retval.append("\\f"); |
| 99 | continue; |
| 100 | case '\r': |
| 101 | retval.append("\\r"); |
| 102 | continue; |
| 103 | case '\"': |
| 104 | retval.append("\\\""); |
| 105 | continue; |
| 106 | case '\'': |
| 107 | retval.append("\\\'"); |
| 108 | continue; |
| 109 | case '\\': |
| 110 | retval.append("\\\\"); |
| 111 | continue; |
| 112 | default: |
| 113 | if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) { |
| 114 | String s = "0000" + Integer.toString(ch, 16); |
| 115 | retval.append("\\u" + s.substring(s.length() - 4, s.length())); |
| 116 | } else { |
| 117 | retval.append(ch); |
| 118 | } |
| 119 | continue; |
| 120 | } |
| 121 | } |
| 122 | return retval.toString(); |
| 123 | } |
| 124 | |
| 125 | /** |
| 126 | * Returns a detailed message for the Error when it is thrown by the |
| 127 | * token manager to indicate a lexical error. |
| 128 | * Parameters : |
| 129 | * EOFSeen : indicates if EOF caused the lexical error |
| 130 | * curLexState : lexical state in which this error occurred |
| 131 | * errorLine : line number when the error occurred |
| 132 | * errorColumn : column number when the error occurred |
| 133 | * errorAfter : prefix that was seen before this error occurred |
| 134 | * curchar : the offending character |
| 135 | * Note: You can customize the lexical error message by modifying this method. |
| 136 | */ |
| 137 | protected static String LexicalError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, String errorAfter, char curChar) { |
| 138 | return("Lexical error at line " + |
| 139 | errorLine + ", column " + |
| 140 | errorColumn + ". Encountered: " + |
| 141 | (EOFSeen ? "<EOF> " : ("\"" + addEscapes(String.valueOf(curChar)) + "\"") + " (" + (int)curChar + "), ") + |
| 142 | "after : \"" + addEscapes(errorAfter) + "\""); |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * You can also modify the body of this method to customize your error messages. |
| 147 | * For example, cases like LOOP_DETECTED and INVALID_LEXICAL_STATE are not |
| 148 | * of end-users concern, so you can return something like : |
| 149 | * |
| 150 | * "Internal Error : Please file a bug report .... " |
| 151 | * |
| 152 | * from this method for such cases in the release version of your parser. |
| 153 | */ |
| 154 | public String getMessage() { |
| 155 | return super.getMessage(); |
| 156 | } |
| 157 | |
| 158 | /* |
| 159 | * Constructors of various flavors follow. |
| 160 | */ |
| 161 | |
| 162 | /** No arg constructor. */ |
| 163 | public TokenMgrError() { |
| 164 | } |
| 165 | |
| 166 | /** Constructor with message and reason. */ |
| 167 | public TokenMgrError(String message, int reason) { |
| 168 | super(message); |
| 169 | errorCode = reason; |
| 170 | } |
| 171 | |
| 172 | /** Full Constructor. */ |
| 173 | public TokenMgrError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, String errorAfter, char curChar, int reason) { |
| 174 | this(LexicalError(EOFSeen, lexState, errorLine, errorColumn, errorAfter, curChar), reason); |
| 175 | } |
| 176 | } |
| 177 | /* JavaCC - OriginalChecksum=ad1c6b56676c3e8d7f428eaaaf21247f (do not edit this line) */ |