PPConditionalParser.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Tue, 24 Nov 2015 19:37:14 +0100
changeset 553 d83cb4945d5e
parent 427 a7f5e6de19d2
permissions -rw-r--r--
Oops, forgot to export PETITCOMPILER_DATA_DIRECTORY variable ...so Smalltalk code could not read it. Also fixed test for "include" scripts so they are not downloaded again when already downloaded.

"{ Package: 'stx:goodies/petitparser' }"

"{ NameSpace: Smalltalk }"

PPDelegateParser subclass:#PPConditionalParser
	instanceVariableNames:'block'
	classVariableNames:''
	poolDictionaries:''
	category:'PetitParser-Parsers'
!

!PPConditionalParser class methodsFor:'as yet unclassified'!

on: aPPParser block: block
	^ (PPConditionalParser on: aPPParser)
		block: block;
		yourself
! !

!PPConditionalParser methodsFor:'accessing'!

block: aBlock
	block := aBlock
! !

!PPConditionalParser methodsFor:'parsing'!

parseOn: aPPContext
	^ (block value: aPPContext) 
		ifTrue: [ parser parseOn: aPPContext ]
		ifFalse: [ PPFailure message: block asString, ' was not evaluated to true.' context: aPPContext ]
! !