Use RBVariableNode>>name: to change variable's name.
The old way - `node token value:` is working in Pharo - there's no token in RBVariableNode. Sigh.
"{ Package: 'stx:goodies/petitparser' }"
PPParser subclass:#PPStartOfLine
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'PetitParser-Parsers'
!
!PPStartOfLine methodsFor:'parsing'!
parseOn: aPPContext
(aPPContext isStartOfLine) ifTrue: [
^ #startOfLine
].
^ PPFailure message: 'Start of line expected' context: aPPContext at: aPPContext position
! !