1 /* Generated By:JavaCC: Do not edit this line. TokenMgrError.java Version 6.1 */
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3 package org.simantics.databoard.parser;
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5 /** Token Manager Error. */
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6 public class TokenMgrError extends Error
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10 * The version identifier for this Serializable class.
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11 * Increment only if the <i>serialized</i> form of the
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14 private static final long serialVersionUID = 1L;
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17 * Ordinals for various reasons why an Error of this type can be thrown.
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21 * Lexical error occurred.
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23 public static final int LEXICAL_ERROR = 0;
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26 * An attempt was made to create a second instance of a static token manager.
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28 public static final int STATIC_LEXER_ERROR = 1;
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31 * Tried to change to an invalid lexical state.
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33 public static final int INVALID_LEXICAL_STATE = 2;
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36 * Detected (and bailed out of) an infinite loop in the token manager.
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38 public static final int LOOP_DETECTED = 3;
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41 * Indicates the reason why the exception is thrown. It will have
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42 * one of the above 4 values.
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47 * Replaces unprintable characters by their escaped (or unicode escaped)
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48 * equivalents in the given string
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50 protected static final String addEscapes(String str) {
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51 StringBuffer retval = new StringBuffer();
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53 for (int i = 0; i < str.length(); i++) {
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54 switch (str.charAt(i))
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57 retval.append("\\b");
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60 retval.append("\\t");
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63 retval.append("\\n");
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66 retval.append("\\f");
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69 retval.append("\\r");
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72 retval.append("\\\"");
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75 retval.append("\\\'");
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78 retval.append("\\\\");
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81 if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
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82 String s = "0000" + Integer.toString(ch, 16);
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83 retval.append("\\u" + s.substring(s.length() - 4, s.length()));
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90 return retval.toString();
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94 * Returns a detailed message for the Error when it is thrown by the
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95 * token manager to indicate a lexical error.
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97 * EOFSeen : indicates if EOF caused the lexical error
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98 * curLexState : lexical state in which this error occurred
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99 * errorLine : line number when the error occurred
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100 * errorColumn : column number when the error occurred
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101 * errorAfter : prefix that was seen before this error occurred
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102 * curchar : the offending character
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103 * Note: You can customize the lexical error message by modifying this method.
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105 protected static String LexicalErr(boolean EOFSeen, int lexState, int errorLine, int errorColumn, String errorAfter, int curChar) {
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106 char curChar1 = (char)curChar;
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107 return("Lexical error at line " +
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108 errorLine + ", column " +
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109 errorColumn + ". Encountered: " +
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110 (EOFSeen ? "<EOF> " : ("\"" + addEscapes(String.valueOf(curChar1)) + "\"") + " (" + (int)curChar + "), ") +
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111 "after : \"" + addEscapes(errorAfter) + "\"");
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115 * You can also modify the body of this method to customize your error messages.
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116 * For example, cases like LOOP_DETECTED and INVALID_LEXICAL_STATE are not
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117 * of end-users concern, so you can return something like :
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119 * "Internal Error : Please file a bug report .... "
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121 * from this method for such cases in the release version of your parser.
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123 public String getMessage() {
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124 return super.getMessage();
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128 * Constructors of various flavors follow.
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131 /** No arg constructor. */
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132 public TokenMgrError() {
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135 /** Constructor with message and reason. */
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136 public TokenMgrError(String message, int reason) {
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138 errorCode = reason;
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141 /** Full Constructor. */
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142 public TokenMgrError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, String errorAfter, int curChar, int reason) {
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143 this(LexicalErr(EOFSeen, lexState, errorLine, errorColumn, errorAfter, curChar), reason);
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146 /* JavaCC - OriginalChecksum=f476c1d882e6ae48270129e555d4889d (do not edit this line) */
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