PPPredicateSequenceParser.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Tue, 12 May 2015 01:24:03 +0100
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Merged with PetitCompiler-JanKurs.20150510144201, PetitCompiler-Tests-JanKurs.20150510144201, PetitCompiler-Extras-Tests-JanKurs.20150510144201, PetitCompiler-Benchmarks-JanKurs.20150510144201 Name: PetitCompiler-JanKurs.20150510144201 Author: JanKurs Time: 10-05-2015, 04:42:29.192 PM UUID: 58a4786b-1182-4904-8b44-a13d3918f244 Name: PetitCompiler-Tests-JanKurs.20150510144201 Author: JanKurs Time: 10-05-2015, 04:32:12.870 PM UUID: 2a8fd41a-331b-4dcf-a7a3-752a50ce86e7 Name: PetitCompiler-Extras-Tests-JanKurs.20150510144201 Author: JanKurs Time: 10-05-2015, 04:59:25.308 PM UUID: ef43bd1a-be60-4e88-b749-8b635622c969 Name: PetitCompiler-Benchmarks-JanKurs.20150510144201 Author: JanKurs Time: 10-05-2015, 05:04:54.561 PM UUID: d8e764fd-016b-46e2-9fc1-17c38c18f0e5
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"{ Package: 'stx:goodies/petitparser' }"
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PPPredicateParser subclass:#PPPredicateSequenceParser
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	instanceVariableNames:'size'
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	classVariableNames:''
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	poolDictionaries:''
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	category:'PetitParser-Parsers'
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!
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!PPPredicateSequenceParser class methodsFor:'instance creation'!
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on: aBlock message: aString negated: aNegatedBlock message: aNegatedString size: anInteger 
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	^ self new initializeOn: aBlock message: aString negated: aNegatedBlock message: aNegatedString size: anInteger
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!
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on: aBlock message: aString size: anInteger
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	^ self on: aBlock message: aString negated: [ :each | (aBlock value: each) not ] message: 'no ' , aString size: anInteger 
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! !
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!PPPredicateSequenceParser methodsFor:'accessing'!
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size
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	"Answer the sequence size of the receiver."
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	^ size
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! !
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!PPPredicateSequenceParser methodsFor:'initialization'!
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initializeOn: aBlock message: aString negated: aNegatedBlock message: aNegatedString size: anInteger
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	predicate := aBlock.
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	predicateMessage := aString.
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	negated := aNegatedBlock.
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	negatedMessage := aNegatedString.
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	size := anInteger 
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! !
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!PPPredicateSequenceParser methodsFor:'operators'!
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negate
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	"Answer a parser that is the negation of the receiving predicate parser."
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	^ self class 
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		on: negated message: negatedMessage
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		negated: predicate message: predicateMessage
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		size: size
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! !
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!PPPredicateSequenceParser methodsFor:'parsing'!
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parseOn: aPPContext
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	| memento result |
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	memento := aPPContext remember.
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	result := aPPContext stream next: size.
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	(result size = size and: [ predicate value: result ])
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		ifTrue: [ ^ result ].
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	aPPContext restore: memento.
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	^ PPFailure message: predicateMessage context: aPPContext
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! !
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!PPPredicateSequenceParser class methodsFor:'documentation'!
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version
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    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPPredicateSequenceParser.st,v 1.4 2014-03-04 14:33:22 cg Exp $'
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!
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version_CVS
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    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPPredicateSequenceParser.st,v 1.4 2014-03-04 14:33:22 cg Exp $'
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!
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    ^ '$Id: PPPredicateSequenceParser.st,v 1.4 2014-03-04 14:33:22 cg Exp $'
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! !
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