PPTrimmingParser.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Thu, 21 May 2015 14:12:22 +0100
changeset 464 f6d77fee9811
parent 411 06b96374dd10
child 642 77d5fddb6462
permissions -rw-r--r--
Updated to PetitCompiler-JanKurs.118, PetitCompiler-Tests-JanKurs.46, PetitCompiler-Extras-Tests-JanKurs.11, and PetitCompiler-Benchmarks-JanKurs.11 Name: PetitCompiler-JanKurs.118 Author: JanKurs Time: 13-05-2015, 03:59:01.292 PM UUID: 4a8ccd94-3131-4cc7-9098-528f8e5ea0b5 Name: PetitCompiler-Tests-JanKurs.46 Author: JanKurs Time: 04-05-2015, 04:25:06.162 PM UUID: 9f4cf8b7-876e-4a13-9579-b833f016db66 Name: PetitCompiler-Extras-Tests-JanKurs.11 Author: JanKurs Time: 13-05-2015, 04:27:27.940 PM UUID: e9f30c31-fbd0-4e96-ad2a-868f88d20ea8 Name: PetitCompiler-Benchmarks-JanKurs.11 Author: JanKurs Time: 13-05-2015, 02:21:49.932 PM UUID: 6a23fd1e-a86f-46db-8221-cc41b778d32c

"{ 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 §'
! !