compiler/PPCAbstractCharacterNode.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Thu, 30 Apr 2015 23:43:14 +0200
changeset 438 20598d7ce9fa
parent 429 23de165842c3
child 452 9f4558b3be66
permissions -rw-r--r--
Updated to PetitCompiler-JanKurs.100, PetitCompiler-Tests-JanKurs.44 and PetitCompiler-Benchmarks-JanKurs.4 Name: PetitCompiler-JanKurs.100 Author: JanKurs Time: 30-04-2015, 10:48:52.165 AM UUID: 80196870-5921-46d9-ac20-a43bf5c2f3c2 Name: PetitCompiler-Tests-JanKurs.44 Author: JanKurs Time: 30-04-2015, 10:49:22.489 AM UUID: 348c02e8-18ce-48f6-885d-fcff4516a298 Name: PetitCompiler-Benchmarks-JanKurs.4 Author: JanKurs Time: 30-04-2015, 10:58:44.890 AM UUID: 18cadb42-f9ef-45fb-82e9-8469ade56c8b
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"{ Package: 'stx:goodies/petitparser/compiler' }"
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"{ NameSpace: Smalltalk }"
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PPCNode subclass:#PPCAbstractCharacterNode
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	instanceVariableNames:'character'
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	classVariableNames:''
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	poolDictionaries:''
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	category:'PetitCompiler-Nodes'
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!
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!PPCAbstractCharacterNode methodsFor:'accessing'!
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character
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	^ character
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!
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character: char
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	character := char
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!
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prefix
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	^ #char
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! !
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!PPCAbstractCharacterNode methodsFor:'analysis'!
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acceptsEpsilon
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	^ false
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!
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firstCharSet
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	^ PPCharSetPredicate on: [:e | e = character ]
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! !
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!PPCAbstractCharacterNode methodsFor:'comparison'!
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= anotherNode
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	super = anotherNode ifFalse: [ ^ false ].
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	^ character = anotherNode character.
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!
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hash
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	^ super hash bitXor: character hash
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! !
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!PPCAbstractCharacterNode methodsFor:'compiling'!
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body: compiler
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	| id |
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	character ppcPrintable ifTrue: [ 
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		id := character storeString 
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	] ifFalse: [ 
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		id := compiler idFor: character prefixed: #char.
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		compiler addConstant: (Character value: character asInteger) as: id .
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	].
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	compiler add: '(context peek == ', id, ')'.
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	compiler indent.
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	compiler add: 'ifFalse: [ self error: ''', character asInteger asString, ' expected'' at: context position ] '.
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	compiler add: 'ifTrue: [ context next ].'.
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	compiler dedent.
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! !
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!PPCAbstractCharacterNode class methodsFor:'documentation'!
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version_HG
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    ^ '$Changeset: <not expanded> $'
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! !
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