/* Generated By:JavaCC: Do not edit this line. ParseException.java Version 3.0 */
package avrora.syntax.objdump;

import cck.parser.AbstractParseException;

/**
 * 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.
 * <p/>
 * You can modify this class to customize your error reporting mechanisms so long as you retain the public
 * fields.
 */
public class ParseException extends AbstractParseException {

    private static final long serialVersionUID = 1L;

    /**
     * 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() {
        specialConstructor = false;
    }


    /**
     * 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 = ((Token)currentToken).next;
        Token next = tok;
        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 " + next.beginLine + ", column " + next.beginColumn;
        retval += '.' + eol;
        if (expectedTokenSequences.length == 1) {
            retval += "Was expecting:" + eol + "    ";
        } else {
            retval += "Was expecting one of:" + eol + "    ";
        }
        retval += expected;
        return retval;
    }

    /**
     * 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);
                    }
            }
        }
        return retval.toString();
    }

}
