ptolemy.data.expr

Class TokenMgrError

java.lang.Object

java.lang.Throwable

java.lang.Error

ptolemy.data.expr.TokenMgrError

All Implemented Interfaces:

java.io.Serializable

public class TokenMgrError
extends java.lang.Error

Token Manager Error.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int	errorCode Indicates the reason why the exception is thrown.
(package private) static int	INVALID_LEXICAL_STATE Tried to change to an invalid lexical state.
(package private) static int	LEXICAL_ERROR Lexical error occurred.
(package private) static int	LOOP_DETECTED Detected (and bailed out of) an infinite loop in the token manager.
(package private) static int	STATIC_LEXER_ERROR An attempt was made to create a second instance of a static token manager.

Constructor Summary

Constructors

Constructor and Description
TokenMgrError() No arg constructor.
TokenMgrError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, java.lang.String errorAfter, char curChar, int reason) Full Constructor.
TokenMgrError(java.lang.String message, int reason) Constructor with message and reason.

Method Summary

Modifier and Type	Method and Description
protected static java.lang.String	addEscapes(java.lang.String str) Replaces unprintable characters by their escaped (or unicode escaped) equivalents in the given string
java.lang.String	getMessage() You can also modify the body of this method to customize your error messages.
protected static java.lang.String	LexicalError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, java.lang.String errorAfter, char curChar) 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

Field Detail

LEXICAL_ERROR

static final int LEXICAL_ERROR

Lexical error occurred.

See Also:

Constant Field Values

STATIC_LEXER_ERROR

static final int STATIC_LEXER_ERROR

An attempt was made to create a second instance of a static token manager.

See Also:

Constant Field Values

INVALID_LEXICAL_STATE

static final int INVALID_LEXICAL_STATE

Tried to change to an invalid lexical state.

See Also:

Constant Field Values

LOOP_DETECTED

static final int LOOP_DETECTED

Detected (and bailed out of) an infinite loop in the token manager.

See Also:

Constant Field Values

errorCode

int errorCode

Indicates the reason why the exception is thrown. It will have one of the above 4 values.

Constructor Detail

TokenMgrError

public TokenMgrError()

No arg constructor.

TokenMgrError

public TokenMgrError(java.lang.String message,
                     int reason)

Constructor with message and reason.

TokenMgrError

public TokenMgrError(boolean EOFSeen,
                     int lexState,
                     int errorLine,
                     int errorColumn,
                     java.lang.String errorAfter,
                     char curChar,
                     int reason)

Full Constructor.

Method Detail

addEscapes

protected static final java.lang.String addEscapes(java.lang.String str)

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

LexicalError

protected static java.lang.String LexicalError(boolean EOFSeen,
                                               int lexState,
                                               int errorLine,
                                               int errorColumn,
                                               java.lang.String errorAfter,
                                               char curChar)

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.

getMessage

public java.lang.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 java.lang.Throwable