src/main/java/org/apache/sling/resource/filter/impl/ParseException.java

/* Generated By:JavaCC: Do not edit this line. ParseException.java Version 5.0 */
/* JavaCCOptions:KEEP_LINE_COL=null */
package org.apache.sling.resource.filter.impl;

/**
 * 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 {

    /**
     * The version identifier for this Serializable class. Increment only if the
     * <i>serialized</i> form of the class changes.
     */
    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.
     */
    public ParseException(Token currentTokenVal, int[][] expectedTokenSequencesVal, String[] tokenImageVal) {
        super(initialise(currentTokenVal, expectedTokenSequencesVal, tokenImageVal));
        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();
    }

    /** Constructor with message. */
    public ParseException(String message) {
        super(message);
    }

    /**
     * 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;

    /**
     * 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) the correct error
     * message gets displayed.
     */
    private static String initialise(Token currentToken, int[][] expectedTokenSequences, String[] tokenImage) {
        String eol = System.getProperty("line.separator", "\n");
        StringBuffer expected = new StringBuffer();
        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.append(tokenImage[expectedTokenSequences[i][j]]).append(' ');
            }
            if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
                expected.append("...");
            }
            expected.append(eol).append("    ");
        }
        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 += " " + tokenImage[tok.kind];
            retval += " \"";
            retval += add_escapes(tok.image);
            retval += " \"";
            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.toString();
        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.
     */
    static 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();
    }

}
/*
 * JavaCC - OriginalChecksum=83a1ca447d862df57c34d5cbcbc80371 (do not edit this
 * line)
 */