/* Generated By:JavaCC: Do not edit this line. TokenMgrError.java Version 3.0 */
package javaff.parser;

public class TokenMgrError extends Error
{
 /*
 * Ordinals for various reasons why an Error of this type can be thrown.
 */

 /**
 * Lexical error occured.
 */
 static final int LEXICAL_ERROR = 0;

 /**
 * An attempt wass made to create a second instance of a static token manager.
 */
 static final int STATIC_LEXER_ERROR = 1;

 /**
 * Tried to change to an invalid lexical state.
 */
 static final int INVALID_LEXICAL_STATE = 2;

 /**
 * Detected (and bailed out of) an infinite loop in the token manager.
 */
 static final int LOOP_DETECTED = 3;

 /**
 * Indicates the reason why the exception is thrown. It will have
 * one of the above 4 values.
 */
 int errorCode;

 /**
 * Replaces unprintable characters by their espaced (or unicode escaped)
 * equivalents in the given string
 */
 protected static final String addEscapes(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();
 }

 /**
 * Returns a detailed message for the Error when it is thrown by the
 * token manager to indicate a lexical error.
 * Parameters : 
 * EOFSeen : indicates if EOF caused the lexicl error
 * curLexState : lexical state in which this error occured
 * errorLine : line number when the error occured
 * errorColumn : column number when the error occured
 * errorAfter : prefix that was seen before this error occured
 * curchar : the offending character
 * Note: You can customize the lexical error message by modifying this method.
 */
 protected static String LexicalError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, String errorAfter, char curChar) {
 return("Lexical error at line " +
 errorLine + ", column " +
 errorColumn + ". Encountered: " +
 (EOFSeen ? "<EOF> " : ("\"" + addEscapes(String.valueOf(curChar)) + "\"") + " (" + (int)curChar + "), ") +
 "after : \"" + addEscapes(errorAfter) + "\"");
 }

 /**
 * You can also modify the body of this method to customize your error messages.
 * For example, cases like LOOP_DETECTED and INVALID_LEXICAL_STATE are not
 * of end-users concern, so you can return something like : 
 *
 * "Internal Error : Please file a bug report .... "
 *
 * from this method for such cases in the release version of your parser.
 */
 public String getMessage() {
 return super.getMessage();
 }

 /*
 * Constructors of various flavors follow.
 */

 public TokenMgrError() {
 }

 public TokenMgrError(String message, int reason) {
 super(message);
 errorCode = reason;
 }

 public TokenMgrError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, String errorAfter, char curChar, int reason) {
 this(LexicalError(EOFSeen, lexState, errorLine, errorColumn, errorAfter, curChar), reason);
 }
}