PPLiteralObjectParser.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Fri, 31 Jul 2015 09:35:15 +0100
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parent 459 4751c407bb40
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Portability fix: do not use "/ style comments in PetitParser code.
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"{ Package: 'stx:goodies/petitparser' }"
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"{ NameSpace: Smalltalk }"
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PPLiteralParser subclass:#PPLiteralObjectParser
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	instanceVariableNames:''
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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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!PPLiteralObjectParser methodsFor:'operators'!
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caseInsensitive
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	"Answer a parser that can parse the receiver case-insensitive."
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	literal asUppercase = literal asLowercase ifTrue: [ ^ self ].
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	^ PPPredicateObjectParser on: [ :value | literal sameAs: value ] message: message
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!
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negate
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	^ (PPPredicateObjectParser expect: literal message: message) negate
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! !
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!PPLiteralObjectParser methodsFor:'parsing'!
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parseOn: aPPContext
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	^ (aPPContext stream atEnd not and: [ literal = aPPContext stream uncheckedPeek ])
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		ifFalse: [ PPFailure message: message context: aPPContext ]
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		ifTrue: [ aPPContext stream next ]
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! !
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!PPLiteralObjectParser class methodsFor:'documentation'!
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version
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    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPLiteralObjectParser.st,v 1.4 2014-03-04 14:33:00 cg Exp $'
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!
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version_CVS
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    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPLiteralObjectParser.st,v 1.4 2014-03-04 14:33:00 cg Exp $'
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!
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version_HG
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    ^ '$Changeset: <not expanded> $'
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!
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    ^ '$Id: PPLiteralObjectParser.st,v 1.4 2014-03-04 14:33:00 cg Exp $'
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! !
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