org.basex.query.util.regex.parse

Class TokenMgrError

java.lang.Object

java.lang.Throwable

java.lang.Error

org.basex.query.util.regex.parse.TokenMgrError

All Implemented Interfaces:

Serializable

public class TokenMgrError
extends Error

Token Manager Error.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TokenMgrError() No arg constructor.
TokenMgrError(boolean eof, int state, int line, int col, String after, char curr, int reason) Full Constructor.
TokenMgrError(String message, int reason) Constructor with message and reason.

Method Summary

Modifier and Type	Method and Description
protected static String	addEscapes(String str) Replaces unprintable characters by their escaped (or unicode escaped) equivalents in the given string.
String	getMessage() You can also modify the body of this method to customize your error messages.
protected static String	lexicalError(boolean eof, int state, int line, int col, String after, char curr) Returns a detailed message for the Error when it is thrown by the token manager to indicate a lexical error.

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

TokenMgrError

public TokenMgrError()

No arg constructor.

TokenMgrError

public TokenMgrError(String message,
                     int reason)

Constructor with message and reason.

Parameters:

message - error message

reason - one of LEXICAL_ERROR, INVALID_LEXICAL_STATE, STATIC_LEXER_ERROR, LOOP_DETECTED

TokenMgrError

public TokenMgrError(boolean eof,
                     int state,
                     int line,
                     int col,
                     String after,
                     char curr,
                     int reason)

Full Constructor.

Parameters:

eof - end of file seen?

state - lexer state

line - error line

col - error column

after - string after which the error occured

curr - current character

reason - one of LEXICAL_ERROR, INVALID_LEXICAL_STATE, STATIC_LEXER_ERROR, LOOP_DETECTED

Method Detail

addEscapes

protected static String addEscapes(String str)

Replaces unprintable characters by their escaped (or unicode escaped) equivalents in the given string.

Parameters:

str - string to be escaped

Returns:

escaped string

lexicalError

protected static String lexicalError(boolean eof,
                                     int state,
                                     int line,
                                     int col,
                                     String after,
                                     char curr)

Returns a detailed message for the Error when it is thrown by the token manager to indicate a lexical error. Note: You can customize the lexical error message by modifying this method.

Parameters:

eof - indicates if EOF caused the lexical error

state - lexical state in which this error occurred

line - line number when the error occurred

col - column number when the error occurred

after - prefix that was seen before this error occurred

curr - the offending character

Returns:

error message

getMessage

public String getMessage()

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.

Overrides:

getMessage in class Throwable