Hello, I am beginning with Drools, especially with DSL and I'd like to use some expanders like this: add {area} to "{setOfAreas}" | "{street1}" street from crossing with "{street2}" street to "{square}" square | and enable the user write in consequences add "Michigan" street from crossing with "Golden" street to "London" square to "allowedAreas" Is that possible? I know this would shift DSL to non-regular languages, probably causing some shift/reduce and reduce/reduce conflicts, but the designer of DSL should be programmer, who is aware of that. Thank you View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4196840#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...