/* Generated By:JavaCC: Do not edit this line. ParseException.java Version 3.0 */
package com.hundsun.jresplus.common.util.html;
/**
* 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 {
/** Comment for <code>serialVersionUID</code> */
private static final long serialVersionUID = 3257288041205870640L;
/**
* 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.
*/
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();
}
}