PPAndParser.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Sat, 05 May 2012 00:05:48 +0200
changeset 40 2cb8fad69877
parent 4 90de244a7fa2
child 49 9852b214d4dd
permissions -rw-r--r--
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"{ Package: 'stx:goodies/petitparser' }"

PPDelegateParser subclass:#PPAndParser
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	category:'PetitParser-Parsers'
!

PPAndParser comment:'The and-predicate, a parser that succeeds whenever its delegate does, but consumes the input stream [Parr 1994, 1995].'
!


!PPAndParser methodsFor:'operations'!

and
	^ self
! !

!PPAndParser methodsFor:'parsing'!

parseOn: aStream
	| element position |
	position := aStream position.
	element := parser parseOn: aStream.
	aStream position: position.
	^ element
! !

!PPAndParser class methodsFor:'documentation'!

version_SVN
    ^ '$Id: PPAndParser.st,v 1.2 2012-01-13 11:22:50 cg Exp $'
! !