001/*
002 * Units of Measurement Reference Implementation
003 * Copyright (c) 2005-2024, Jean-Marie Dautelle, Werner Keil, Otavio Santana.
004 *
005 * All rights reserved.
006 *
007 * Redistribution and use in source and binary forms, with or without modification,
008 * are permitted provided that the following conditions are met:
009 *
010 * 1. Redistributions of source code must retain the above copyright notice,
011 *    this list of conditions and the following disclaimer.
012 *
013 * 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions
014 *    and the following disclaimer in the documentation and/or other materials provided with the distribution.
015 *
016 * 3. Neither the name of JSR-385, Indriya nor the names of their contributors may be used to endorse or promote products
017 *    derived from this software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
020 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
021 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
022 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
023 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
026 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
028 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030/* JavaCCOptions: */
031package tech.units.indriya.format;
032
033import javax.measure.MeasurementError;
034
035/** Token Manager Error. 
036 * @version 2.0
037 * @author Werner Keil
038 */
039public class TokenMgrError extends MeasurementError {
040
041  /**
042   * The Serialization identifier for this class. Increment only if the <i>serialized</i> form of the class changes.
043   */
044  private static final long serialVersionUID = -3348968864772188432L;
045
046  /*
047   * Ordinals for various reasons why an Error of this type can be thrown.
048   */
049
050  /**
051   * Lexical error occurred.
052   */
053  public static final int LEXICAL_ERROR = 0;
054
055  /**
056   * An attempt was made to create a second instance of a static token manager.
057   */
058  public static final int STATIC_LEXER_ERROR = 1;
059
060  /**
061   * Tried to change to an invalid lexical state.
062   */
063  public static final int INVALID_LEXICAL_STATE = 2;
064
065  /**
066   * Detected (and bailed out of) an infinite loop in the token manager.
067   */
068  public static final int LOOP_DETECTED = 3;
069
070  /**
071   * Replaces unprintable characters by their escaped (or unicode escaped) equivalents in the given string
072   */
073  protected static String addEscapes(String str) {
074    StringBuilder retval = new StringBuilder();
075    char ch;
076    for (int i = 0; i < str.length(); i++) {
077      switch (str.charAt(i)) {
078        case 0:
079          continue;
080        case '\b':
081          retval.append("\\b");
082          continue;
083        case '\t':
084          retval.append("\\t");
085          continue;
086        case '\n':
087          retval.append("\\n");
088          continue;
089        case '\f':
090          retval.append("\\f");
091          continue;
092        case '\r':
093          retval.append("\\r");
094          continue;
095        case '\"':
096          retval.append("\\\"");
097          continue;
098        case '\'':
099          retval.append("\\\'");
100          continue;
101        case '\\':
102          retval.append("\\\\");
103          continue;
104        default:
105          if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
106            String s = "0000" + Integer.toString(ch, 16);
107            retval.append("\\u").append(s.substring(s.length() - 4, s.length()));
108          } else {
109            retval.append(ch);
110          }
111      }
112    }
113    return retval.toString();
114  }
115
116  /**
117   * Returns a detailed message for the Error when it is thrown by the token manager to indicate a lexical error. Parameters : EOFSeen : indicates if
118   * EOF caused the lexical error curLexState : lexical state in which this error occurred errorLine : line number when the error occurred errorColumn
119   * : column number when the error occurred errorAfter : prefix that was seen before this error occurred curchar : the offending character Note: You
120   * can customize the lexical error message by modifying this method.
121   */
122  protected static String lexicalError(boolean EOFSeen, int errorLine, int errorColumn, String errorAfter, char curChar) {
123    return ("Lexical error at line " + errorLine + ", column " + errorColumn + ".  Encountered: "
124        + (EOFSeen ? "<EOF> " : ("\"" + addEscapes(String.valueOf(curChar)) + "\"") + " (" + (int) curChar + "), ") + "after : \""
125        + addEscapes(errorAfter) + "\"");
126  }
127
128  /*
129   * Constructors of various flavors follow.
130   */
131
132  /** No arg constructor. */
133  public TokenMgrError() {
134  }
135  
136  /** Constructor with message. */
137  public TokenMgrError(String message) {
138    super(message);
139  }
140
141  /** Constructor with message and reason. */
142  public TokenMgrError(String message, int reason) {
143    super(message);
144    @SuppressWarnings("unused")
145        int errorCode = reason; // TODO use?
146  }
147
148  /** Full Constructor. */
149  public TokenMgrError(boolean EOFSeen, int errorLine, int errorColumn, String errorAfter, char curChar, int reason) {
150    this(lexicalError(EOFSeen, errorLine, errorColumn, errorAfter, curChar), reason);
151  }
152}
153/*
154 * JavaCC - OriginalChecksum=8a6e5be586cca28053ad55584e013006 (do not edit this
155 * line)
156 */