PPSequenceParser.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Mon, 23 Nov 2015 11:14:30 +0100
changeset 551 00ebb1b85f53
parent 502 1e45d3c96ec5
permissions -rw-r--r--
Fixed CI scripts on Windows For an unknown reason, unzip on Windows reports status code 50 (presumably "the disk is (or was) full during extraction.") even if there's plenty of space. To workaround this, simply ignore status code 50 on Windows. Sigh.

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

"{ NameSpace: Smalltalk }"

PPListParser subclass:#PPSequenceParser
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	category:'PetitParser-Parsers'
!



!PPSequenceParser methodsFor:'*petitcompiler'!

map: aBlock
	^ aBlock numArgs = self children size
		ifTrue: [ self ==> [ :nodes | aBlock valueWithArguments: nodes ] ]
		ifFalse: [ self error: aBlock numArgs asString , ' arguments expected.' ]
! !


!PPSequenceParser methodsFor:'operations'!

, aRule
	^ self copyWith: aRule
!

permutation: anArrayOfIntegers
	"Answer a permutation of the receivers sequence."
	
	anArrayOfIntegers do: [ :index |
		(index isInteger and: [ index between: 1 and: parsers size ])
			ifFalse: [ self error: 'Invalid permutation index: ' , index printString ] ].
	^ self ==> [ :nodes | anArrayOfIntegers collect: [ :index | nodes at: index ] ]
! !

!PPSequenceParser methodsFor:'parsing'!

parseOn: aPPContext
	"This is optimized code that avoids unnecessary block activations, do not change."
	
	| memento elements element |
	memento := aPPContext remember.
	elements := Array new: parsers size.
	1 to: parsers size do: [ :index |
		element := (parsers at: index) 
			parseOn: aPPContext.
		element isPetitFailure ifTrue: [
			aPPContext restore: memento.
			^ element ].
		elements at: index put: element ].
	^ elements
! !

!PPSequenceParser class methodsFor:'documentation'!

version
    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPSequenceParser.st,v 1.4 2014-03-04 14:33:25 cg Exp $'
!

version_CVS
    ^ '$Header: /cvs/stx/stx/goodies/petitparser/PPSequenceParser.st,v 1.4 2014-03-04 14:33:25 cg Exp $'
!

version_HG

    ^ '$Changeset: <not expanded> $'
!

version_SVN
    ^ '$Id: PPSequenceParser.st,v 1.4 2014-03-04 14:33:25 cg Exp $'
! !