4
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"{ Package: 'stx:goodies/petitparser' }"
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0
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2 |
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PPDelegateParser subclass:#PPMemoizedParser
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instanceVariableNames:'stream buffer'
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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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9 |
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!PPMemoizedParser methodsFor:'operations'!
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memoized
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"Ther is no point in memoizing more than once."
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^ self
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! !
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!PPMemoizedParser methodsFor:'parsing'!
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parseOn: aStream
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| memento |
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stream == aStream
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ifFalse: [ self reset: aStream ].
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memento := (buffer at: stream position + 1)
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ifNil: [ buffer at: stream position + 1 put: PPMemento new ].
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memento position isNil
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ifTrue: [
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memento result: (stream size - stream position + 2 < memento count
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ifTrue: [ PPFailure message: 'overflow' at: stream position ]
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ifFalse: [ memento increment. parser parseOn: stream ]).
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memento position: stream position ]
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ifFalse: [ stream position: memento position ].
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^ memento result
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! !
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!PPMemoizedParser methodsFor:'private'!
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reset: aStream
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stream := aStream.
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buffer := Array new: aStream size + 1
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! !
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!PPMemoizedParser class methodsFor:'documentation'!
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45 |
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10
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version
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^ '$Header: /cvs/stx/stx/goodies/petitparser/PPMemoizedParser.st,v 1.3 2012-05-04 21:58:48 vrany Exp $'
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!
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version_CVS
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^ '$Header: /cvs/stx/stx/goodies/petitparser/PPMemoizedParser.st,v 1.3 2012-05-04 21:58:48 vrany Exp $'
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!
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53 |
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0
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version_SVN
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10
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^ '§Id: PPMemoizedParser.st 2 2010-12-17 18:44:23Z vranyj1 §'
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0
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56 |
! !
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