--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PPSequenceParser.st	Thu Aug 18 20:56:17 2011 +0200
@@ -0,0 +1,55 @@
+"{ Package: 'squeak:petitparser' }"
+
+PPListParser subclass:#PPSequenceParser
+	instanceVariableNames:''
+	classVariableNames:''
+	poolDictionaries:''
+	category:'PetitParser-Parsers'
+!
+
+PPSequenceParser comment:'A parser that parses a sequence of parsers.'
+!
+
+
+!PPSequenceParser methodsFor:'operations'!
+
+, aRule
+	^ self copyWith: aRule
+!
+
+map: aBlock
+	^ self ==> [ :nodes | aBlock valueWithArguments: nodes ]
+!
+
+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: aStream
+	"This is optimized code that avoids unnecessary block activations, do not change."
+	
+	| start elements element |
+	start := aStream position.
+	elements := Array new: parsers size.
+	1 to: parsers size do: [ :index |
+		element := (parsers at: index) 
+			parseOn: aStream.
+		element isPetitFailure ifTrue: [
+			aStream position: start.
+			^ element ].
+		elements at: index put: element ].
+	^ elements
+! !
+
+!PPSequenceParser class methodsFor:'documentation'!
+
+version_SVN
+    ^ '$Id: PPSequenceParser.st,v 1.1 2011-08-18 18:56:17 cg Exp $'
+! !