PPConditionalParser.st
author Patrik Svestka <patrik.svestka@gmail.com>
Wed, 14 Nov 2018 13:01:14 +0100
changeset 642 77d5fddb6462
parent 427 a7f5e6de19d2
permissions -rw-r--r--
Issue #239: Fix all Smalltak/X source files to be in unicode (UTF8 without BOM) and prefixed by "{ Encoding: utf8 }" when any unicode character is present - All source *.st files are now Unicode UTF8 without BOM Files are in two groups (fileOut works this way in Smalltalk/X): - containing a unicode character have "{ Encoding: utf8 }" at the header - ASCII only are without the header

"{ 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 ]
! !