Package org.petitparser.parser.primitive

Class FailureParser

java.lang.Object

org.petitparser.parser.Parser

org.petitparser.parser.primitive.FailureParser

public class FailureParser
extends Parser

A parser that consumes nothing and always fails.

Method Summary

Modifier and Type	Method	Description
FailureParser	copy()	Returns a shallow copy of the receiver.
protected boolean	hasEqualProperties(Parser other)	Compares the properties of two parsers.
Result	parseOn(Context context)	Primitive method doing the actual parsing.
String	toString()	Returns a human readable string identifying this parser.
static Parser	withMessage(String message)	Construct a FailureParser that fails with the supplied message.

Methods inherited from class java.lang.Object

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

Methods inherited from class org.petitparser.parser.Parser

accept, and, callCC, delimitedBy, end, end, flatten, getChildren, hasEqualChildren, isEqualTo, isEqualTo, map, matches, matchesSkipping, neg, neg, not, not, optional, optional, or, parse, permute, pick, plus, plusGreedy, plusLazy, repeat, repeatGreedy, repeatLazy, replace, separatedBy, seq, settable, star, starGreedy, starLazy, times, token, trim, trim, trim

Method Detail

withMessage

public static Parser withMessage(String message)

Construct a FailureParser that fails with the supplied message.

parseOn

public Result parseOn(Context context)

Description copied from class: Parser

Primitive method doing the actual parsing.

Specified by:

parseOn in class Parser

hasEqualProperties

protected boolean hasEqualProperties(Parser other)

Description copied from class: Parser

Compares the properties of two parsers. Override this method in all subclasses that add new state.

Overrides:

hasEqualProperties in class Parser

copy

public FailureParser copy()

Description copied from class: Parser

Returns a shallow copy of the receiver.

Specified by:

copy in class Parser

toString

public String toString()

Description copied from class: Parser

Returns a human readable string identifying this parser.

Overrides:

toString in class Parser