PPOptionalParser.st
author sr
Wed, 04 Jul 2018 15:43:31 +0200
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parent 172 c446d835cbba
child 377 6112a403a52d
permissions -rw-r--r--
build order was wrong
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"{ Package: 'stx:goodies/petitparser' }"
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PPDelegateParser subclass:#PPOptionalParser
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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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!PPOptionalParser methodsFor:'*petitanalyzer-testing'!
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isNullable
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	^ true
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! !
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!PPOptionalParser methodsFor:'parsing'!
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parseOn: aStream
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	| element |
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	element := parser parseOn: aStream.
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	^ element isPetitFailure ifFalse: [ element ]
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! !
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!PPOptionalParser class methodsFor:'documentation'!
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version_SVN
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    ^ '$Id: PPOptionalParser.st,v 1.4 2014-03-04 14:33:10 cg Exp $'
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! !
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