--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/relaxng/trunk/RNG__OptionalNode.st	Tue Apr 08 19:47:42 2008 +0000
@@ -0,0 +1,93 @@
+"{ Package: 'stx:goodies/xmlsuite/relaxng' }"
+
+"{ NameSpace: RNG }"
+
+ContentModelNode subclass:#OptionalNode
+	instanceVariableNames:''
+	classVariableNames:''
+	poolDictionaries:''
+	category:'Relax NG-Content model'
+!
+
+
+!OptionalNode methodsFor:'automaton support'!
+
+generateTransitionsIn:aContentModelAutomaton
+
+
+
+    super generateTransitionsIn:aContentModelAutomaton.
+
+    "/self children size > 1 ifTrue:[self halt].
+
+    self children do:[:child|
+        aContentModelAutomaton
+            makeTransitionsFrom:child patternsThatCanBeLast
+            to:child patternsThatCanBeNext
+    ]
+
+    "Created: / 23-06-2005 / 10:57:47 / masca"
+!
+
+patternsThatCanBeFirst
+    "Superclass says that I am responsible to implement this method"
+
+    ^self firstChild patternsThatCanBeFirst
+        addAll:(self next patternsThatCanBeFirst);
+        yourself
+
+    "Created: / 30-04-2005 / 21:04:04 / janfrog"
+!
+
+patternsThatCanBeLast
+    "Superclass says that I am responsible to implement this method"
+
+    ^self lastChild patternsThatCanBeLast 
+        addAll:(self prev patternsThatCanBeLast);
+        yourself
+
+    "Created: / 30-04-2005 / 21:04:04 / janfrog"
+! !
+
+!OptionalNode methodsFor:'printing'!
+
+groupModifierCharacter
+    "Superclass says that I am responsible to implement this method"
+
+    ^$?
+
+    "Created: / 30-04-2005 / 18:58:40 / janfrog"
+! !
+
+!OptionalNode methodsFor:'testing'!
+
+canBeEmpty
+    ^true
+
+    "Created: / 02-05-2005 / 12:03:40 / janfrog"
+!
+
+isOptionalNode
+    ^ true
+
+    "Created: / 14-05-2005 / 20:47:45 / janfrog"
+! !
+
+!OptionalNode methodsFor:'visiting'!
+
+acceptVisitor:aVisitor 
+    "Double dispatch back to the visitor, passing my type encoded in
+     the selector (visitor pattern)"
+
+    "stub code automatically generated - please change if required"
+
+    ^ aVisitor visitOptionalNode:self
+
+    "Created: / 02-05-2005 / 16:38:45 / janfrog"
+! !
+
+!OptionalNode class methodsFor:'documentation'!
+
+version
+    ^ '$Header: /opt/data/cvs/stx/goodies/xmlsuite/relaxng/RNG__OptionalNode.st,v 1.1.1.1 2005-11-01 22:07:13 vranyj1 Exp $'
+! !