Codegen: added support for smart action node compiling.
Avoid creation of intermediate result collection for action nodes if all references
to action block's argument (i.e., the nodes collection) is in form of:
* <nodes> at: <numeric constant>
* <nodes> first (second, third...
"{ Package: 'stx:goodies/petitparser' }"
PPDelegateParser subclass:#PPTrimmingParser
instanceVariableNames:'trimmer'
classVariableNames:''
poolDictionaries:''
category:'PetitParser-Parsers'
!
!PPTrimmingParser class methodsFor:'instance creation'!
on: aParser trimmer: aTrimParser
^ self new
setParser: aParser;
setTrimmer: aTrimParser;
yourself
! !
!PPTrimmingParser methodsFor:'initialization'!
setTrimmer: aParser
trimmer := aParser
! !
!PPTrimmingParser methodsFor:'parsing'!
parseOn: aPPContext
| memento element |
memento := aPPContext remember.
[ (trimmer parseOn: aPPContext) isPetitFailure ]
whileFalse.
element := parser parseOn: aPPContext.
element isPetitFailure ifTrue: [
aPPContext restore: memento.
^ element ].
[ (trimmer parseOn: aPPContext) isPetitFailure ]
whileFalse.
^ element
! !
!PPTrimmingParser class methodsFor:'documentation'!
version
^ '$Header: /cvs/stx/stx/goodies/petitparser/PPTrimmingParser.st,v 1.3 2012-05-04 22:05:38 vrany Exp $'
!
version_CVS
^ '$Header: /cvs/stx/stx/goodies/petitparser/PPTrimmingParser.st,v 1.3 2012-05-04 22:05:38 vrany Exp $'
!
version_HG
^ '$Changeset: <not expanded> $'
!
version_SVN
^ '§Id: PPTrimmingParser.st 2 2010-12-17 18:44:23Z vranyj1 §'
! !