001/*
002 * Cobertura - http://cobertura.sourceforge.net/
003 *
004 * This file was taken from JavaNCSS
005 * http://www.kclee.com/clemens/java/javancss/
006 * Copyright (C) 2000 Chr. Clemens Lee <clemens a.t kclee d.o.t com>
007 *
008 * Cobertura is free software; you can redistribute it and/or modify
009 * it under the terms of the GNU General Public License as published
010 * by the Free Software Foundation; either version 2 of the License,
011 * or (at your option) any later version.
012 *
013 * Cobertura is distributed in the hope that it will be useful, but
014 * WITHOUT ANY WARRANTY; without even the implied warranty of
015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
016 * General Public License for more details.
017 *
018 * You should have received a copy of the GNU General Public License
019 * along with Cobertura; if not, write to the Free Software
020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
021 * USA
022 */
023
024
025/*
026 *
027 * WARNING   WARNING   WARNING   WARNING   WARNING   WARNING   WARNING   WARNING   WARNING  
028 *
029 * WARNING TO COBERTURA DEVELOPERS
030 *
031 * DO NOT MODIFY THIS FILE!
032 *
033 * MODIFY THE FILES UNDER THE JAVANCSS DIRECTORY LOCATED AT THE ROOT OF THE COBERTURA PROJECT.
034 *
035 * FOLLOW THE PROCEDURE FOR MERGING THE LATEST JAVANCSS INTO COBERTURA LOCATED AT
036 * javancss/coberturaREADME.txt
037 *
038 * WARNING   WARNING   WARNING   WARNING   WARNING   WARNING   WARNING   WARNING   WARNING   
039 */
040/* Generated By:JavaCC: Do not edit this line. ParseException.java Version 4.1 */
041/* JavaCCOptions:KEEP_LINE_COL=null */
042package net.sourceforge.cobertura.javancss.parser.java15;
043
044/**
045 * This exception is thrown when parse errors are encountered.
046 * You can explicitly create objects of this exception type by
047 * calling the method generateParseException in the generated
048 * parser.
049 *
050 * You can modify this class to customize your error reporting
051 * mechanisms so long as you retain the public fields.
052 */
053public class ParseException extends Exception {
054
055  /**
056   * This constructor is used by the method "generateParseException"
057   * in the generated parser.  Calling this constructor generates
058   * a new object of this type with the fields "currentToken",
059   * "expectedTokenSequences", and "tokenImage" set.  The boolean
060   * flag "specialConstructor" is also set to true to indicate that
061   * this constructor was used to create this object.
062   * This constructor calls its super class with the empty string
063   * to force the "toString" method of parent class "Throwable" to
064   * print the error message in the form:
065   *     ParseException: <result of getMessage>
066   */
067  public ParseException(Token currentTokenVal,
068                        int[][] expectedTokenSequencesVal,
069                        String[] tokenImageVal
070                       )
071  {
072    super("");
073    specialConstructor = true;
074    currentToken = currentTokenVal;
075    expectedTokenSequences = expectedTokenSequencesVal;
076    tokenImage = tokenImageVal;
077  }
078
079  /**
080   * The following constructors are for use by you for whatever
081   * purpose you can think of.  Constructing the exception in this
082   * manner makes the exception behave in the normal way - i.e., as
083   * documented in the class "Throwable".  The fields "errorToken",
084   * "expectedTokenSequences", and "tokenImage" do not contain
085   * relevant information.  The JavaCC generated code does not use
086   * these constructors.
087   */
088
089  public ParseException() {
090    super();
091    specialConstructor = false;
092  }
093
094  /** Constructor with message. */
095  public ParseException(String message) {
096    super(message);
097    specialConstructor = false;
098  }
099
100  /**
101   * This variable determines which constructor was used to create
102   * this object and thereby affects the semantics of the
103   * "getMessage" method (see below).
104   */
105  protected boolean specialConstructor;
106
107  /**
108   * This is the last token that has been consumed successfully.  If
109   * this object has been created due to a parse error, the token
110   * followng this token will (therefore) be the first error token.
111   */
112  public Token currentToken;
113
114  /**
115   * Each entry in this array is an array of integers.  Each array
116   * of integers represents a sequence of tokens (by their ordinal
117   * values) that is expected at this point of the parse.
118   */
119  public int[][] expectedTokenSequences;
120
121  /**
122   * This is a reference to the "tokenImage" array of the generated
123   * parser within which the parse error occurred.  This array is
124   * defined in the generated ...Constants interface.
125   */
126  public String[] tokenImage;
127
128  /**
129   * This method has the standard behavior when this object has been
130   * created using the standard constructors.  Otherwise, it uses
131   * "currentToken" and "expectedTokenSequences" to generate a parse
132   * error message and returns it.  If this object has been created
133   * due to a parse error, and you do not catch it (it gets thrown
134   * from the parser), then this method is called during the printing
135   * of the final stack trace, and hence the correct error message
136   * gets displayed.
137   */
138  public String getMessage() {
139    if (!specialConstructor) {
140      return super.getMessage();
141    }
142    StringBuffer expected = new StringBuffer();
143    int maxSize = 0;
144    for (int i = 0; i < expectedTokenSequences.length; i++) {
145      if (maxSize < expectedTokenSequences[i].length) {
146        maxSize = expectedTokenSequences[i].length;
147      }
148      for (int j = 0; j < expectedTokenSequences[i].length; j++) {
149        expected.append(tokenImage[expectedTokenSequences[i][j]]).append(' ');
150      }
151      if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
152        expected.append("...");
153      }
154      expected.append(eol).append("    ");
155    }
156    String retval = "Encountered \"";
157    Token tok = currentToken.next;
158    for (int i = 0; i < maxSize; i++) {
159      if (i != 0) retval += " ";
160      if (tok.kind == 0) {
161        retval += tokenImage[0];
162        break;
163      }
164      retval += " " + tokenImage[tok.kind];
165      retval += " \"";
166      retval += add_escapes(tok.image);
167      retval += " \"";
168      tok = tok.next;
169    }
170    retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn;
171    retval += "." + eol;
172    if (expectedTokenSequences.length == 1) {
173      retval += "Was expecting:" + eol + "    ";
174    } else {
175      retval += "Was expecting one of:" + eol + "    ";
176    }
177    retval += expected.toString();
178    return retval;
179  }
180
181  /**
182   * The end of line string for this machine.
183   */
184  protected String eol = System.getProperty("line.separator", "\n");
185
186  /**
187   * Used to convert raw characters to their escaped version
188   * when these raw version cannot be used as part of an ASCII
189   * string literal.
190   */
191  protected String add_escapes(String str) {
192      StringBuffer retval = new StringBuffer();
193      char ch;
194      for (int i = 0; i < str.length(); i++) {
195        switch (str.charAt(i))
196        {
197           case 0 :
198              continue;
199           case '\b':
200              retval.append("\\b");
201              continue;
202           case '\t':
203              retval.append("\\t");
204              continue;
205           case '\n':
206              retval.append("\\n");
207              continue;
208           case '\f':
209              retval.append("\\f");
210              continue;
211           case '\r':
212              retval.append("\\r");
213              continue;
214           case '\"':
215              retval.append("\\\"");
216              continue;
217           case '\'':
218              retval.append("\\\'");
219              continue;
220           case '\\':
221              retval.append("\\\\");
222              continue;
223           default:
224              if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
225                 String s = "0000" + Integer.toString(ch, 16);
226                 retval.append("\\u" + s.substring(s.length() - 4, s.length()));
227              } else {
228                 retval.append(ch);
229              }
230              continue;
231        }
232      }
233      return retval.toString();
234   }
235
236}
237/* JavaCC - OriginalChecksum=e07eeb809ef62869a5836bb515bc01e5 (do not edit this line) */