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| org.apache.commons.jexl.parser.TokenMgrError |
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| 1 | /* |
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| 2 | * Copyright 2002-2006 The Apache Software Foundation. |
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| 3 | * |
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 5 | * you may not use this file except in compliance with the License. |
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| 6 | * You may obtain a copy of the License at |
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| 7 | * |
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 9 | * |
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| 10 | * Unless required by applicable law or agreed to in writing, software |
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 13 | * See the License for the specific language governing permissions and |
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| 14 | * limitations under the License. |
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| 15 | */ |
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| 16 | /* Generated By:JavaCC: Do not edit this line. TokenMgrError.java Version 2.1 */ |
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| 17 | package org.apache.commons.jexl.parser; |
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| 18 | ||
| 19 | public class TokenMgrError extends Error { |
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| 20 | /** serialization version id jdk13 generated. */ |
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| 21 | static final long serialVersionUID = 2843513002462329650L; |
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| 22 | ||
| 23 | /* |
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| 24 | * Ordinals for various reasons why an Error of this type can be thrown. |
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| 25 | */ |
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| 26 | ||
| 27 | /** |
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| 28 | * Lexical error occured. |
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| 29 | */ |
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| 30 | static final int LEXICAL_ERROR = 0; |
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| 31 | ||
| 32 | /** |
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| 33 | * An attempt wass made to create a second instance of a static token |
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| 34 | * manager. |
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| 35 | */ |
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| 36 | static final int STATIC_LEXER_ERROR = 1; |
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| 37 | ||
| 38 | /** |
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| 39 | * Tried to change to an invalid lexical state. |
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| 40 | */ |
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| 41 | static final int INVALID_LEXICAL_STATE = 2; |
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| 42 | ||
| 43 | /** |
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| 44 | * Detected (and bailed out of) an infinite loop in the token manager. |
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| 45 | */ |
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| 46 | static final int LOOP_DETECTED = 3; |
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| 47 | ||
| 48 | /** |
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| 49 | * Indicates the reason why the exception is thrown. It will have one of the |
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| 50 | * above 4 values. |
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| 51 | */ |
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| 52 | int errorCode; |
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| 53 | ||
| 54 | /** |
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| 55 | * Replaces unprintable characters by their espaced (or unicode escaped) |
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| 56 | * equivalents in the given string |
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| 57 | */ |
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| 58 | protected static final String addEscapes(String str) { |
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| 59 | 6 | StringBuffer retval = new StringBuffer(); |
| 60 | char ch; |
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| 61 | 9 | for (int i = 0; i < str.length(); i++) { |
| 62 | 3 | switch (str.charAt(i)) { |
| 63 | case 0: |
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| 64 | 0 | continue; |
| 65 | case '\b': |
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| 66 | 0 | retval.append("\\b"); |
| 67 | 0 | continue; |
| 68 | case '\t': |
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| 69 | 0 | retval.append("\\t"); |
| 70 | 0 | continue; |
| 71 | case '\n': |
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| 72 | 0 | retval.append("\\n"); |
| 73 | 0 | continue; |
| 74 | case '\f': |
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| 75 | 0 | retval.append("\\f"); |
| 76 | 0 | continue; |
| 77 | case '\r': |
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| 78 | 0 | retval.append("\\r"); |
| 79 | 0 | continue; |
| 80 | case '\"': |
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| 81 | 0 | retval.append("\\\""); |
| 82 | 0 | continue; |
| 83 | case '\'': |
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| 84 | 0 | retval.append("\\\'"); |
| 85 | 0 | continue; |
| 86 | case '\\': |
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| 87 | 0 | retval.append("\\\\"); |
| 88 | 0 | continue; |
| 89 | default: |
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| 90 | 3 | if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) { |
| 91 | 0 | String s = "0000" + Integer.toString(ch, 16); |
| 92 | 0 | retval.append("\\u" + s.substring(s.length() - 4, s.length())); |
| 93 | } else { |
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| 94 | 3 | retval.append(ch); |
| 95 | } |
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| 96 | continue; |
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| 97 | } |
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| 98 | } |
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| 99 | 6 | return retval.toString(); |
| 100 | } |
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| 101 | ||
| 102 | /** |
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| 103 | * Returns a detailed message for the Error when it is thrown by the token |
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| 104 | * manager to indicate a lexical error. Parameters : EOFSeen : indicates if |
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| 105 | * EOF caused the lexicl error curLexState : lexical state in which this |
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| 106 | * error occured errorLine : line number when the error occured errorColumn : |
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| 107 | * column number when the error occured errorAfter : prefix that was seen |
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| 108 | * before this error occured curchar : the offending character Note: You can |
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| 109 | * customize the lexical error message by modifying this method. |
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| 110 | */ |
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| 111 | private static final String LexicalError(boolean EOFSeen, int lexState, class="keyword">int errorLine, class="keyword">int errorColumn, |
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| 112 | String errorAfter, char curChar) { |
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| 113 | 3 | return ("Lexical error at line " + errorLine + ", column " + errorColumn + ". Encountered: " |
| 114 | + (EOFSeen ? "<EOF> " : ("\"" + addEscapes(String.valueOf(curChar)) + "\"") + " (" + (int) curChar + "), ") |
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| 115 | + "after : \"" + addEscapes(errorAfter) + "\""); |
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| 116 | } |
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| 117 | ||
| 118 | /** |
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| 119 | * You can also modify the body of this method to customize your error |
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| 120 | * messages. For example, cases like LOOP_DETECTED and INVALID_LEXICAL_STATE |
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| 121 | * are not of end-users concern, so you can return something like : |
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| 122 | * |
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| 123 | * "Internal Error : Please file a bug report .... " |
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| 124 | * |
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| 125 | * from this method for such cases in the release version of your parser. |
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| 126 | */ |
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| 127 | public String getMessage() { |
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| 128 | 3 | return super.getMessage(); |
| 129 | } |
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| 130 | ||
| 131 | /* |
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| 132 | * Constructors of various flavors follow. |
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| 133 | */ |
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| 134 | ||
| 135 | 0 | public TokenMgrError() { |
| 136 | 0 | } |
| 137 | ||
| 138 | public TokenMgrError(String message, int reason) { |
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| 139 | 3 | super(message); |
| 140 | 3 | errorCode = reason; |
| 141 | 3 | } |
| 142 | ||
| 143 | public TokenMgrError(boolean EOFSeen, int lexState, class="keyword">int errorLine, class="keyword">int errorColumn, String errorAfter, |
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| 144 | char curChar, int reason) { |
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| 145 | 3 | this(LexicalError(EOFSeen, lexState, errorLine, errorColumn, errorAfter, curChar), reason); |
| 146 | 3 | } |
| 147 | } |
| This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |