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"{ Package: 'stx:goodies/smaCC' }"
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"{ NameSpace: SmaCC }"
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SmaCCSymbol subclass:#SmaCCNonTerminalSymbol
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instanceVariableNames:'productions'
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classVariableNames:''
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poolDictionaries:''
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category:'SmaCC-Parser Generator'
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!
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SmaCCNonTerminalSymbol comment:'SmaCCNonTerminalSymbol represents a non-terminal symbol in our grammar.
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Instance Variables:
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productions <SequenceableCollection of: SmaCCRHS> our rhs'' for the symbol'
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!
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!SmaCCNonTerminalSymbol methodsFor:'accessing'!
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addProduction: aRHS
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productions add: aRHS
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!
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calculateFirstTerminals
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| initialSize |
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initialSize := firstItems size.
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productions isEmpty
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ifTrue: [firstItems add: self class empty]
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ifFalse: [productions do: [:each | firstItems addAll: each firstTerminals]].
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^initialSize ~= firstItems size
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!
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positionOf: aRHS
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^productions indexOf: aRHS
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!
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productionsDo: aBlock
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productions do: aBlock
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!
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size
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^productions size
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! !
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!SmaCCNonTerminalSymbol methodsFor:'initialize-release'!
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name: aString
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super name: aString.
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productions := OrderedCollection new
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! !
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!SmaCCNonTerminalSymbol methodsFor:'public'!
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isEmpty
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^productions isEmpty
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!
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isTerminal
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^false
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! !
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!SmaCCNonTerminalSymbol class methodsFor:'documentation'!
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version
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^ '$Header: /opt/data/cvs/stx/goodies/smaCC/SmaCC__SmaCCNonTerminalSymbol.st,v 1.1 2006-02-09 21:18:48 vranyj1 Exp $'
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15
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!
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version_SVN
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^ '$Id$'
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1
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! !
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