net.percederberg.grammatica.parser

Class ParserCreationException

java.lang.Object

java.lang.Throwable

java.lang.Exception

net.percederberg.grammatica.parser.ParserCreationException

All Implemented Interfaces:

java.io.Serializable

public class ParserCreationException
extends java.lang.Exception

A parser creation exception. This exception is used for signalling an error in the token or production patterns, making it impossible to create a working parser or tokenizer.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static int	INFINITE_LOOP_ERROR The infinite loop error type constant.
static int	INHERENT_AMBIGUITY_ERROR The inherent ambiguity error type constant.
static int	INTERNAL_ERROR The internal error type constant.
static int	INVALID_PARSER_ERROR The invalid parser error type constant.
static int	INVALID_PRODUCTION_ERROR The invalid production error type constant.
static int	INVALID_TOKEN_ERROR The invalid token error type constant.

Constructor Summary

Constructors

Constructor and Description
ParserCreationException(int type, java.lang.String info) Creates a new parser creation exception.
ParserCreationException(int type, java.lang.String name, java.lang.String info) Creates a new parser creation exception.
ParserCreationException(int type, java.lang.String name, java.lang.String info, java.util.ArrayList details) Creates a new parser creation exception.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getDetails() Returns the detailed error information as a string
int	getErrorType() Returns the error type.
java.lang.String	getInfo() Returns the additional error information.
java.lang.String	getMessage() Returns the error message.
java.lang.String	getName() Returns the token or production name.

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

INVALID_PARSER_ERROR

public static final int INVALID_PARSER_ERROR

The invalid parser error type constant. This type is used when the parser as such is invalid. This error is typically caused by using a parser without any patterns.

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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 is erroneous. This error is typically caused by an invalid pattern type or an erroneous regular expression.

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Constant Field Values

INVALID_PRODUCTION_ERROR

public static final int INVALID_PRODUCTION_ERROR

The invalid production error type constant. This type is used when a production pattern is erroneous. This error is typically caused by referencing undeclared productions, or violating some other production pattern constraint.

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Constant Field Values

INFINITE_LOOP_ERROR

public static final int INFINITE_LOOP_ERROR

The infinite loop error type constant. This type is used when an infinite loop has been detected in the grammar. One of the productions in the loop will be reported.

See Also:

Constant Field Values

INHERENT_AMBIGUITY_ERROR

public static final int INHERENT_AMBIGUITY_ERROR

The inherent ambiguity error type constant. This type is used when the set of production patterns (i.e. the grammar) contains ambiguities that cannot be resolved.

See Also:

Constant Field Values

Constructor Detail

ParserCreationException

public ParserCreationException(int type,
                               java.lang.String info)

Creates a new parser creation exception.

Parameters:

type - the parse error type

info - the additional error information

ParserCreationException

public ParserCreationException(int type,
                               java.lang.String name,
                               java.lang.String info)

Creates a new parser creation exception.

Parameters:

type - the parse error type

name - the token or production pattern name

info - the additional error information

ParserCreationException

public ParserCreationException(int type,
                               java.lang.String name,
                               java.lang.String info,
                               java.util.ArrayList details)

Creates a new parser creation exception.

Parameters:

type - the parse error type

name - the token or production pattern name

info - the additional error information

details - the error details list

Method Detail

getErrorType

public int getErrorType()

Returns the error type.

Returns:

the error type

getName

public java.lang.String getName()

Returns the token or production name.

Returns:

the token or production name

getInfo

public java.lang.String getInfo()

Returns the additional error information.

Returns:

the additional error information

getDetails

public java.lang.String getDetails()

Returns the detailed error information as a string

Returns:

the detailed error information

getMessage

public java.lang.String getMessage()

Returns the error message. This message will contain all the information available.

Overrides:

getMessage in class java.lang.Throwable

Returns:

the error message