Bug 438125

Summary:	[DebugAntlrGeneratorFragment] Ambiguous Debug-Grammar generated for UnorderedGroups
Product:	[Modeling] TMF	Reporter:	Sven Efftinge <sven.efftinge>
Component:	Xtext	Assignee:	Project Inbox <tmf.xtext-inbox>
Status:	NEW ---	QA Contact:
Severity:	normal
Priority:	P3	CC:	christian.dietrich.opensource, sebastian.zarnekow
Version:	2.6.1	Keywords:	triaged
Target Milestone:	---
Hardware:	PC
OS:	Mac OS X
Whiteboard:

Description Sven Efftinge

2014-06-25 03:59:05 EDT

For an unordered group

 x? & y?

something like this is generated:

 (x? | y?)*

which Antlr complains about.