[rules-users] Parsing problems using a DSL

I have run into a number of problems using a domain specific language (DSL) on processing DSLR files. My biggest frustration - and one I am hoping people can provide a work-around or guidance on - is that often the Eclipse plug-in does not allow the DRL pane, showing the DRL file, to be clicked on (and shown.) This sometimes happens when there are no compilation errors: the DLR file is simply not being generated. I have run into issues where an error like "parsing problem: contact the support team" occurs or a null pointer exception occurs, but no error is shown. My approach has been to make small changes in working DSL files (i.e., describing the translations) at a time, to minimize impact. Can anyone offer better approaches to building the DSL grammar? On a related issue, many documents cite using DSL and regular expressions for code-rewriting and - while I find documentation on antlr 3 masks for doing some regular expressions - is the common re-writing task of using "or" - as in My object (Car|Bus|Buyer|Salesman) supported in any way other than seperate lines for "object Car", "object Bus", etc? Thanks! -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Parsing-problems-usin... Sent from the Drools - User mailing list archive at Nabble.com.