/* ====================================================================
*
* The ObjectStyle Group Software License, Version 1.0
*
* Copyright (c) 2002 The ObjectStyle Group
* and individual authors of the software. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* ObjectStyle Group (http://objectstyle.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "ObjectStyle Group" and "Cayenne"
* must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact andrus@objectstyle.org.
*
* 5. Products derived from this software may not be called "ObjectStyle"
* nor may "ObjectStyle" appear in their names without prior written
* permission of the ObjectStyle Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE OBJECTSTYLE GROUP OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the ObjectStyle Group. For more
* information on the ObjectStyle Group, please see
* <http://objectstyle.org/>.
*
*/
/* Generated By:JavaCC: Do not edit this line. ParseException.java Version 3.0 */
package org.objectstyle.woenvironment.util;
/**
* This exception is thrown when parse errors are encountered. You can
* explicitly create objects of this exception type by calling the method
* generateParseException in the generated parser.
*
* You can modify this class to customize your error reporting mechanisms so
* long as you retain the public fields.
*/
public class ParseException extends Exception {
/**
* This constructor is used by the method "generateParseException" in the
* generated parser. Calling this constructor generates a new object of this
* type with the fields "currentToken", "expectedTokenSequences", and
* "tokenImage" set. The boolean flag "specialConstructor" is also set to
* true to indicate that this constructor was used to create this object.
* This constructor calls its super class with the empty string to force the
* "toString" method of parent class "Throwable" to print the error message
* in the form: ParseException: <result of getMessage>
*/
public ParseException(Token currentTokenVal, int[][] expectedTokenSequencesVal, String[] tokenImageVal) {
super("");
specialConstructor = true;
currentToken = currentTokenVal;
expectedTokenSequences = expectedTokenSequencesVal;
tokenImage = tokenImageVal;
}
/**
* The following constructors are for use by you for whatever purpose you
* can think of. Constructing the exception in this manner makes the
* exception behave in the normal way - i.e., as documented in the class
* "Throwable". The fields "errorToken", "expectedTokenSequences", and
* "tokenImage" do not contain relevant information. The JavaCC generated
* code does not use these constructors.
*/
public ParseException() {
super();
specialConstructor = false;
}
public ParseException(String message) {
super(message);
specialConstructor = false;
}
/**
* This variable determines which constructor was used to create this object
* and thereby affects the semantics of the "getMessage" method (see below).
*/
protected boolean specialConstructor;
/**
* This is the last token that has been consumed successfully. If this
* object has been created due to a parse error, the token followng this
* token will (therefore) be the first error token.
*/
public Token currentToken;
/**
* Each entry in this array is an array of integers. Each array of integers
* represents a sequence of tokens (by their ordinal values) that is
* expected at this point of the parse.
*/
public int[][] expectedTokenSequences;
/**
* This is a reference to the "tokenImage" array of the generated parser
* within which the parse error occurred. This array is defined in the
* generated ...Constants interface.
*/
public String[] tokenImage;
/**
* This method has the standard behavior when this object has been created
* using the standard constructors. Otherwise, it uses "currentToken" and
* "expectedTokenSequences" to generate a parse error message and returns
* it. If this object has been created due to a parse error, and you do not
* catch it (it gets thrown from the parser), then this method is called
* during the printing of the final stack trace, and hence the correct error
* message gets displayed.
*/
@Override
public String getMessage() {
if (!specialConstructor) {
return super.getMessage();
}
String expected = "";
int maxSize = 0;
for (int i = 0; i < expectedTokenSequences.length; i++) {
if (maxSize < expectedTokenSequences[i].length) {
maxSize = expectedTokenSequences[i].length;
}
for (int j = 0; j < expectedTokenSequences[i].length; j++) {
expected += tokenImage[expectedTokenSequences[i][j]] + " ";
}
if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
expected += "...";
}
expected += eol + " ";
}
String retval = "Encountered \"";
Token tok = currentToken.next;
for (int i = 0; i < maxSize; i++) {
if (i != 0)
retval += " ";
if (tok.kind == 0) {
retval += tokenImage[0];
break;
}
retval += add_escapes(tok.image);
tok = tok.next;
}
retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn;
retval += "." + eol;
if (expectedTokenSequences.length == 1) {
retval += "Was expecting:" + eol + " ";
} else {
retval += "Was expecting one of:" + eol + " ";
}
retval += expected;
return retval;
}
/**
* The end of line string for this machine.
*/
protected String eol = System.getProperty("line.separator", "\n");
/**
* Used to convert raw characters to their escaped version when these raw
* version cannot be used as part of an ASCII string literal.
*/
protected String add_escapes(String str) {
StringBuffer retval = new StringBuffer();
char ch;
for (int i = 0; i < str.length(); i++) {
switch (str.charAt(i)) {
case 0:
continue;
case '\b':
retval.append("\\b");
continue;
case '\t':
retval.append("\\t");
continue;
case '\n':
retval.append("\\n");
continue;
case '\f':
retval.append("\\f");
continue;
case '\r':
retval.append("\\r");
continue;
case '\"':
retval.append("\\\"");
continue;
case '\'':
retval.append("\\\'");
continue;
case '\\':
retval.append("\\\\");
continue;
default:
if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
String s = "0000" + Integer.toString(ch, 16);
retval.append("\\u" + s.substring(s.length() - 4, s.length()));
} else {
retval.append(ch);
}
continue;
}
}
return retval.toString();
}
}