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 }"
PPCNode subclass:#PPCCharacterNode
instanceVariableNames:'character'
classVariableNames:''
poolDictionaries:''
category:'PetitCompiler-Nodes'
!
!PPCCharacterNode methodsFor:'accessing'!
character
^ character
!
character: char
character := char
!
defaultName
^ #char
! !
!PPCCharacterNode methodsFor:'analysis'!
acceptsEpsilon
^ false
!
firstCharSet
^ PPCharSetPredicate on: [:e | e = character ]
!
recognizedSentencesPrim
^ Array with: character asString
! !
!PPCCharacterNode methodsFor:'comparison'!
= anotherNode
super = anotherNode ifFalse: [ ^ false ].
^ character = anotherNode character.
!
hash
^ super hash bitXor: character hash
! !
!PPCCharacterNode methodsFor:'printing'!
printNameOn: aStream
super printNameOn: aStream.
character = $" ifTrue: [
"this is hack to allow for printing '' in comments..."
aStream nextPutAll: ', '; nextPutAll: '$'''''.
^ self
].
aStream nextPutAll: ', '; print: character.
! !
!PPCCharacterNode methodsFor:'visiting'!
accept: visitor
^ visitor visitCharacterNode: self
! !