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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. |