PPLimitedRepeatingParser.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Mon, 15 Jun 2015 19:13:49 +0100
changeset 488 19a9c25960ef
parent 377 6112a403a52d
permissions -rw-r--r--
Avoid creation of intermediate collection for mapped action nodes.
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"{ Package: 'stx:goodies/petitparser' }"
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PPRepeatingParser subclass:#PPLimitedRepeatingParser
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	instanceVariableNames:'limit'
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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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!PPLimitedRepeatingParser class methodsFor:'instance creation'!
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on: aParser limit: aLimitParser
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	^ (self on: aParser) setLimit: aLimitParser
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! !
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!PPLimitedRepeatingParser methodsFor:'accessing'!
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children
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	^ Array with: parser with: limit
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!
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limit
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	"Answer the parser that limits (or ends) this repetition."
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	^ limit
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! !
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!PPLimitedRepeatingParser methodsFor:'initialization'!
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setLimit: aParser
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	limit := aParser
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! !
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!PPLimitedRepeatingParser methodsFor:'parsing'!
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matchesLimitOn: aPPContext
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	| element position |
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	position := aPPContext remember.
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	element := limit parseOn: aPPContext.
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	aPPContext restore: position.
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	^ element isPetitFailure not
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! !
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!PPLimitedRepeatingParser class methodsFor:'documentation'!
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version
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    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPLimitedRepeatingParser.st,v 1.1 2014-03-04 14:32:55 cg Exp $'
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!
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version_CVS
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    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPLimitedRepeatingParser.st,v 1.1 2014-03-04 14:32:55 cg Exp $'
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! !
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