Hi, I need help in making the "or" work. I have the following rule: rule when ( or Condition_clause_1 Condition_clause_2 ) then Consequence_clause_1 end ------------- It gives me the following compilation error: org.drools.rule.InvalidRulePackage: [4] Unable to expand: ( [5] Unable to expand: or [8] Unable to expand: ) Seems it doesn't recognize "(", "or", and ")". But I totally follow the documentation on section 6.5.2.3 of version 4.0.7. Any help is highly appreciated. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

Thanks for your reply. Yes, I am using a DSL. So what you mean is I need to add 3 mappings in DSL like the following: ( mapped to ( ) mapped to ) or mapped to or right? I'll try that. Thanks a lot! On 8/8/08, Edson Tirelli <tirelli(a)post.com&gt; wrote: > > The error message indicates you are using DSL and the problem is not in > the DRL, but in DSL. > DSL requires every single line to be "matches" (or expanded), so if you > have a line with a single ( and nothing more, either you have a mapping for > it, or you escape the line with ">". > > Best way to fix your problem is to use the drools eclipse plugin for > .dslr files, and using the DRL preview feature. > > []s > Edson > > 2008/8/8 Yu Wang <yuwarm(a)gmail.com&gt; > > > > Hi, I need help in making the "or" work. I have the following rule: > > > > > > rule > > when > > ( > > or > > Condition_clause_1 > > Condition_clause_2 > > ) > > then > > Consequence_clause_1 > > end > > > > ------------- > > > > It gives me the following compilation error: > > > > org.drools.rule.InvalidRulePackage: [4] Unable to expand: > ( [5] > > Unable to expand: or [8] Unable to expand: ) > > > > Seems it doesn't recognize "(", "or", and ")". But I totally follow > > the documentation on section 6.5.2.3 of version 4.0.7. > > > > > > Any help is highly appreciated. > > _______________________________________________ > > rules-users mailing list > > rules-users(a)lists.jboss.org > > https://lists.jboss.org/mailman/listinfo/rules-users > > > > > > -- > Edson Tirelli > JBoss Drools Core Development > JBoss, a division of Red Hat @ www.jboss.com > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > >

You must escape ( ... [condition][]\(=( But I'm not sure it will work, because expansion is doing nothing... I mean, text before and after expansion is the same and the system was designed to check for changes... Do you need to have ( alone in a line? Can't you use a more textual representation for "( or"? Like: rule XYX when Either Condition_1 Condition_2 End_Either then Action_1 end So you can map Either to "( or" and End_either or whatever word you chose to ")"? Just trying to find alternate ways. Edson 2008/8/8 Yu Wang <yuwarm(a)gmail.com&gt; > This doesn't work. :( > > Acutally I am using the eclipse plugin and the DSL viewer shows that > the source code looks fine. The code I put in my first email was taken > from the DSL viewer. > > but when I add the three lines: > [condition][](=( > [condition][])=) > [condition][]or=or > > The DSL viewer refuses to work and shows the following msg: > DSL Rule Translation Error! > Reason: > java.util.regex.PatternSyntaxException: Unclosed group near index 13 > (\W|^)((\W|$) > > I think it means "(" in the last word. > I also tried "("="(", and '(', didn't work either. > So I can't add the three mappings this way. Any ideas? Thanks! > > > > > > > > On 8/8/08, Yu Wang <yuwarm(a)gmail.com&gt; wrote: > > Thanks for your reply. Yes, I am using a DSL. So what you mean is I > > need to add 3 mappings in DSL like the following: > > ( mapped to ( > > ) mapped to ) > > or mapped to or > > right? I'll try that. > > Thanks a lot! > > > > On 8/8/08, Edson Tirelli <tirelli(a)post.com&gt; wrote: > > > > > > The error message indicates you are using DSL and the problem is not in > > > the DRL, but in DSL. > > > DSL requires every single line to be "matches" (or expanded), so if you > > > have a line with a single ( and nothing more, either you have a mapping for > > > it, or you escape the line with ">". > > > > > > Best way to fix your problem is to use the drools eclipse plugin for > > > .dslr files, and using the DRL preview feature. > > > > > > []s > > > Edson > > > > > > 2008/8/8 Yu Wang <yuwarm(a)gmail.com&gt; > > > > > > > > Hi, I need help in making the "or" work. I have the following rule: > > > > > > > > > > > > rule > > > > when > > > > ( > > > > or > > > > Condition_clause_1 > > > > Condition_clause_2 > > > > ) > > > > then > > > > Consequence_clause_1 > > > > end > > > > > > > > ------------- > > > > > > > > It gives me the following compilation error: > > > > > > > > org.drools.rule.InvalidRulePackage: [4] Unable to expand: > > > ( [5] > > > > Unable to expand: or [8] Unable to expand: ) > > > > > > > > Seems it doesn't recognize "(", "or", and ")". But I totally follow > > > > the documentation on section 6.5.2.3 of version 4.0.7. > > > > > > > > > > > > Any help is highly appreciated. > > > > _______________________________________________ > > > > rules-users mailing list > > > > rules-users(a)lists.jboss.org > > > > https://lists.jboss.org/mailman/listinfo/rules-users > > > > > > > > > > > > > > > > -- > > > Edson Tirelli > > > JBoss Drools Core Development > > > JBoss, a division of Red Hat @ www.jboss.com > > > > > > _______________________________________________ > > > rules-users mailing list > > > rules-users(a)lists.jboss.org > > > https://lists.jboss.org/mailman/listinfo/rules-users > > > > > > > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > -- Edson Tirelli JBoss Drools Core Development JBoss, a division of Red Hat @ www.jboss.com _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users