[jboss-jira] [JBoss JIRA] Commented: (JBRULES-1278) DSL Parser "eval"

[Edson Tirelli (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBRULES-1278?page=comments#action_12399870 ] 
            
Edson Tirelli commented on JBRULES-1278:
----------------------------------------

I was not able to reproduce the problem from the example you showed. I used the following test case:

package org.drools.test;

import org.drools.Cheese;

global java.util.List list;

rule "Cheese matches stilton"
	salience 10
    when
        stilton : Cheese( type matches "[Ss]tilto[^0-9]" )
    then
		list.add( stilton );
end   

rule "Cheese not matches"
    when
        brie : Cheese( type not matches "(stil.*|mu\w*|brie\d|aged.*|.*prov.*)" )
    then
		list.add( brie );
end   

rule "Cheese matches with space"
	salience -10
    when
        stilton : Cheese( type matches "aged stilton" )
    then
		list.add( stilton );
end   

rule "Cheese matches with ^ and escaped s"
	salience -20
    when
        prov : Cheese( type matches "^provolone\s*" )
    then
		list.add( prov );
end  

I guess you are using DSL (by the ticket title).
Please provide a test case to reproduce the problem.

Thank you,
Edson

> DSL Parser "eval"
> -----------------
>
>                 Key: JBRULES-1278
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-1278
>             Project: JBoss Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Drl Parser/Builder
>    Affects Versions: 4.0.1
>            Reporter: M H
>         Assigned To: Mark Proctor
>            Priority: Blocker
>             Fix For: 4.0.5
>
>
> rule "PatternTest"
>        when
>                $pli:Item( title matches "^Test\s*")
>        then
>                        #
> end
> this one compiles but on Runtime it ends in an Exception when title looks for example like this "BlaBla (Test)".
> as workaround i thought about using the next part, but
> rule "PatternTest"
>        when
>                $pli:Item( eval(title.matches("^Test\s*")) )
>        then
>                        #
> end
> it resolves into, also it shouldn't (because title.matches() is Java Code a shouldn't be parsed by the DSL Parser itself):
> SyntaxfehlerRule Compilation error : [Rule name=OnlineStreaming Start,
> agendaGroup=MAIN, salience=100, no-loop=true]
> com/p7s1/swi/phoenix/n24/Rule_OnlineStreaming_Start_0.java (19:923) :
> Invalid escape sequence (valid ones are \b \t \n \f \r \" \' \\ )

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