net.percederberg.grammatica.parser

Class ParseException

java.lang.Object

java.lang.Throwable

java.lang.Exception

net.percederberg.grammatica.parser.ParseException

All Implemented Interfaces:

java.io.Serializable

public class ParseException
extends java.lang.Exception

A parse exception.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	ANALYSIS_ERROR The analysis error type constant.
static int	INTERNAL_ERROR The internal error type constant.
static int	INVALID_TOKEN_ERROR The invalid token error type constant.
static int	IO_ERROR The I/O error type constant.
static int	UNEXPECTED_CHAR_ERROR The unexpected character error type constant.
static int	UNEXPECTED_EOF_ERROR The unexpected end of file error type constant.
static int	UNEXPECTED_TOKEN_ERROR The unexpected token error type constant.

Constructor Summary

Constructors

Constructor and Description
ParseException(int type, java.lang.String info, java.util.ArrayList details, int line, int column) Creates a new parse exception.
ParseException(int type, java.lang.String info, int line, int column) Creates a new parse exception.

Method Summary

Modifier and Type	Method and Description
int	getColumn() Returns the column number where the error occured.
java.util.ArrayList	getDetails() Returns the additional detailed error information.
java.lang.String	getErrorMessage() Returns the error message.
int	getErrorType() Returns the error type.
java.lang.String	getInfo() Returns the additional error information.
int	getLine() Returns the line number where the error occured.
java.lang.String	getMessage() Returns the detailed error message.

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

INTERNAL_ERROR

public static final int INTERNAL_ERROR

The internal error type constant. This type is only used to signal an error that is a result of a bug in the parser or tokenizer code.

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Constant Field Values

IO_ERROR

public static final int IO_ERROR

The I/O error type constant. This type is used for stream I/O errors.

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Constant Field Values

UNEXPECTED_EOF_ERROR

public static final int UNEXPECTED_EOF_ERROR

The unexpected end of file error type constant. This type is used when end of file is encountered instead of a valid token.

See Also:

Constant Field Values

UNEXPECTED_CHAR_ERROR

public static final int UNEXPECTED_CHAR_ERROR

The unexpected character error type constant. This type is used when a character is read that isn't handled by one of the token patterns.

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Constant Field Values

UNEXPECTED_TOKEN_ERROR

public static final int UNEXPECTED_TOKEN_ERROR

The unexpected token error type constant. This type is used when another token than the expected one is encountered.

See Also:

Constant Field Values

INVALID_TOKEN_ERROR

public static final int INVALID_TOKEN_ERROR

The invalid token error type constant. This type is used when a token pattern with an error message is matched. The additional information provided should contain the error message.

See Also:

Constant Field Values

ANALYSIS_ERROR

public static final int ANALYSIS_ERROR

The analysis error type constant. This type is used when an error is encountered in the analysis. The additional information provided should contain the error message.

See Also:

Constant Field Values

Constructor Detail

ParseException

public ParseException(int type,
                      java.lang.String info,
                      int line,
                      int column)

Creates a new parse exception.

Parameters:

type - the parse error type

info - the additional information

line - the line number, or -1 for unknown

column - the column number, or -1 for unknown

ParseException

public ParseException(int type,
                      java.lang.String info,
                      java.util.ArrayList details,
                      int line,
                      int column)

Creates a new parse exception. This constructor is only used to supply the detailed information array, which is only used for expected token errors. The list then contains descriptions of the expected tokens.

Parameters:

type - the parse error type

info - the additional information

details - the additional detailed information

line - the line number, or -1 for unknown

column - the column number, or -1 for unknown

Method Detail

getErrorType

public int getErrorType()

Returns the error type.

Returns:

the error type

getInfo

public java.lang.String getInfo()

Returns the additional error information.

Returns:

the additional error information

getDetails

public java.util.ArrayList getDetails()

Returns the additional detailed error information.

Returns:

the additional detailed error information

getLine

public int getLine()

Returns the line number where the error occured.

Returns:

the line number of the error, or -1 if unknown

getColumn

public int getColumn()

Returns the column number where the error occured.

Returns:

the column number of the error, or -1 if unknown

getMessage

public java.lang.String getMessage()

Returns the detailed error message. This message will contain the same string as getErrorMessage(), but with line number and column number information appended.

Overrides:

getMessage in class java.lang.Throwable

Returns:

the detailed error message

getErrorMessage

public java.lang.String getErrorMessage()

Returns the error message. This message will contain all the information available, except for the line and column number information.

Returns:

the error message