Ported PetitCompiler-(Tests).
Name: PetitCompiler-JanKurs.41
Author: JanKurs
Time: 25-10-2014, 03:30:28 AM
UUID: 105186d1-1187-4ca6-8d66-3d2d47def4d3
Repository: http://smalltalkhub.com/mc/JanKurs/PetitParser/main
Name: PetitCompiler-Tests-JanKurs.4
Author: JanKurs
Time: 25-10-2014, 03:30:58 AM
UUID: 3e798fad-d5f6-4881-a583-f0bbffe27869
Repository: http://smalltalkhub.com/mc/JanKurs/PetitParser/main
In addition, fixed some problems to make it compilable under Smalltalk/X:
* Fixed PPCTokenNode>>initialize - there's no children instvar, it's initialization removed.
* Fixed PPCContextMemento>>propertyAt:ifAbsent: - removed return-in-return, not compilable under Smalltalk/X (C issues)
* Fixed PPCContextMemento>>hash - there's no stream instvar, access to it removed.
* Fixed PPCAbstractCharacterNode>>compileWith:effect:id: - removed dot after method selector (stc does not like it)
"{ Package: 'stx:goodies/petitparser/compiler' }"
PPParser subclass:#PPCompiledParser
instanceVariableNames:'startSymbol context failure error'
classVariableNames:''
poolDictionaries:''
category:'PetitCompiler-Core'
!
PPCompiledParser class instanceVariableNames:'parsers constants referringParser'
"
No other class instance variables are inherited by this class.
"
!
PPCompiledParser comment:''
!
!PPCompiledParser class methodsFor:'as yet unclassified'!
addConstant: value as: id
self constants at: id ifPresent: [
((self constants at: id) = value) ifFalse: [self error: 'ooups']].
self constants at: id put: value.
!
addParser: aPPParser as: id
"(self parsers includesKey: id) ifTrue: [self error: 'Ooups' ]."
self parsers at: id put: aPPParser.
!
constants
constants ifNil: [ constants := IdentityDictionary new ].
^ constants
!
parse: input
^ self new parse: input
!
parsers
parsers ifNil: [ parsers := IdentityDictionary new ].
^ parsers
!
referringParser
^ referringParser
!
referringParser: aPPParser
referringParser := aPPParser
! !
!PPCompiledParser methodsFor:'as yet unclassified'!
callParser: id
| retval |
retval := (self class parsers at: id) parseOn: context.
retval isPetitFailure ifTrue: [ self error: retval message at: retval position ]
ifFalse: [ self clearError ].
^ retval
!
clearError
error := false.
!
error
^ self error: '' at: context position
!
error: message
^ self error: message at: context position
!
error: aMessage at: position
failure position < position ifTrue: [
failure message: aMessage.
failure position: position
].
error := true.
^ failure
!
initialize
super initialize.
self class constants keysAndValuesDo: [ :key :value |
self instVarNamed: key put: value.
].
startSymbol := #start.
!
isCompiled
^ true
!
isError
^ error
!
parse: input rule: symbol
startSymbol := symbol.
^ self parse: input.
!
start
^ self subclassResponsibility
!
startSymbol: aSymbol
startSymbol := aSymbol
!
updateContext: aPPContext
self class referringParser allParsersDo: [ :p | p updateContext: aPPContext ].
! !
!PPCompiledParser methodsFor:'parsing'!
parseOn: aPPContext
| retval |
" context := aPPContext asCompiledParserContext."
context := aPPContext.
context compiledParser: self.
failure := PPFailure new message: nil; context: context; position: -1.
context noteFailure: failure.
error := false.
retval := self perform: startSymbol.
(retval isPetitFailure) ifTrue: [ aPPContext noteFailure: failure ].
error ifTrue: [ aPPContext noteFailure: failure. retval := failure ].
" aPPContext position: context position."
^ retval
! !