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

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

/** Token Manager Error. */
public class TokenMgrError extends Error {

    /**
     * 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;

    /*
     * Ordinals for various reasons why an Error of this type can be thrown.
     */

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

    /**
     * An attempt was 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 escaped (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 lexical error curLexState : lexical state in which this error
     * occurred errorLine : line number when the error occurred errorColumn : column
     * number when the error occurred errorAfter : prefix that was seen before this
     * error occurred 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.
     */

    /** No arg constructor. */
    public TokenMgrError() {
    }

    /** Constructor with message and reason. */
    public TokenMgrError(String message, int reason) {
        super(message);
        errorCode = reason;
    }

    /** Full Constructor. */
    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);
    }
}
/*
 * JavaCC - OriginalChecksum=cb6190a073e75e5f61dac8e989eb2b78 (do not edit this
 * line)
 */