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"{ Package: 'stx:goodies/petitparser' }"
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PPLiteralParser subclass:#PPLiteralSequenceParser
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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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PPLiteralSequenceParser comment:'A parser accepts a sequence of literal objects, such as a String. This is an optimization to avoid having to compose longer sequences from PPSequenceParser.'
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!
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!PPLiteralSequenceParser 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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!PPLiteralSequenceParser methodsFor:'initialization'!
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initializeOn: anObject message: aString
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super initializeOn: anObject message: aString.
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size := literal size
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! !
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!PPLiteralSequenceParser 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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^ PPPredicateSequenceParser on: [ :value | literal sameAs: value ] message: message size: size
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! !
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!PPLiteralSequenceParser methodsFor:'parsing'!
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parseOn: aStream
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| position result |
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position := aStream position.
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result := aStream next: size.
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literal = result ifTrue: [ ^ result ].
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aStream position: position.
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^ PPFailure message: message at: aStream position
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! !
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!PPLiteralSequenceParser class methodsFor:'documentation'!
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version_SVN
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4
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^ '$Id: PPLiteralSequenceParser.st,v 1.2 2012-01-13 11:22:50 cg Exp $'
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! !
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