Portability: fixes for Smalltalk/X
* Do not use detect:ifFound: - not present in Smalltalk/X
* Removed leftover debugging code (Halt if:, ...)
* Do not use `aClass methods`, use `aClass methodDictionary values`
* Do not use #allPairsDo; - not present in Smalltalk/X
* Do not use #crShow: - not present in Smalltalk/X
* On Smalltalk?X use Filename - there's no FileReference in Smalltalk/X
* Do not use CharacterSet, use String
"{ Package: 'stx:goodies/petitparser' }"
PPDelegateParser subclass:#PPOptionalParser
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'PetitParser-Parsers'
!
!PPOptionalParser methodsFor:'parsing'!
parseOn: aPPContext
| element |
element := parser parseOn: aPPContext.
^ element isPetitFailure ifFalse: [ element ]
! !
!PPOptionalParser class methodsFor:'documentation'!
version_SVN
^ '$Id: PPOptionalParser.st,v 1.4 2014-03-04 14:33:10 cg Exp $'
! !