Portability fixes
* do not use Object>>asString. Not all Smalltalks implement it.
* do not use Object>>name. Not all Smalltalks implement it.
* do not use Dictionary keysAndValuesRemove:. Not all Smalltalks implement it.
* do not use Class>>methods The semantics is different among Smalltalks.
Use `Class methodDictionary values` instead.
* do not modify dictionary in #at:ifAbsentPut: block!
"{ Package: 'stx:goodies/petitparser/compiler' }"
"{ NameSpace: Smalltalk }"
PPCompiledParser subclass:#PPTokenizingCompiledParser
instanceVariableNames:'currentTokenValue currentTokenType scanner'
classVariableNames:''
poolDictionaries:''
category:'PetitCompiler-Parsers'
!
!PPTokenizingCompiledParser class methodsFor:'as yet unclassified'!
acceptsLoggingOfCompilation
^ self == PPTokenizingCompiledParser
! !
!PPTokenizingCompiledParser methodsFor:'initialization'!
initialize
super initialize.
! !
!PPTokenizingCompiledParser methodsFor:'tokenizing'!
consume: tokenType
self halt: 'deprecated'.
(self perform: tokenType) ifTrue: [
currentTokenType := nil.
^ currentTokenValue.
].
"self error: 'expected: ', tokenType storeString, ' got ', currentTokenType storeString."
self error.
!
consumeWhitespace
"self shouldBeImplemented "
!
currentTokenType
currentTokenType isNil ifTrue: [ self nextToken ].
^ currentTokenType
!
currentTokenTypeIs: tokenType
"if the type is read"
self halt: 'deprecated'.
currentTokenType isNil ifFalse: [ ^ currentTokenType = tokenType ].
"if not, try to read the token"
^ self perform: tokenType.
!
currentTokenValue
currentTokenType isNil ifTrue: [ self nextToken ].
^ currentTokenType
!
nextToken
self shouldBeImplemented
!
parseOn: aPPContext
| retval |
context := aPPContext.
context compiledParser: self.
failure := PPFailure new message: nil; context: context; position: -1.
context noteFailure: failure.
error := false.
currentTokenType := nil.
scanner := (self class classVarNamed: #scannerClass) new.
scanner stream: aPPContext.
self consumeWhitespace.
retval := self perform: startSymbol.
" self consumeWhitespace."
(retval isPetitFailure) ifTrue: [ aPPContext noteFailure: failure ].
error ifTrue: [ aPPContext noteFailure: failure. retval := failure ].
" aPPContext position: context position."
^ retval
! !