[rules-users] Simple rule worked in 4.0.7 and failed in 5.0.1

[Corneil du Plessis]

Txank you
On Thu, 2009-06-25 at 08:19 -0400, Edson Tirelli wrote:

> 
>    I added a comment to the JIRA, but replicate it here for
> completeness:
> 
> =====
> Due to some limitations on the way that Drools 4 handles regexps, we
> had to change the default escaping syntax for regexps, from single
> escape to double escape. In Drools 5, regexps work exactly like in
> Java. So, instead of doing:
> 
> ".*\s(ADDR)\s.*|(ADDR)\s.*|.*\s(ADDR)"
> 
> You need to write:
> 
> ".*\\s(ADDR)\\s.*|(ADDR)\\s.*|.*\\s(ADDR)"
> 
> If you would like to continue using regexps in the same way you did
> for Drools 4, i.e., with single escape (not recommended), there is a
> configuration that makes Drools 5 parse regexps as it did in Drools 4.
> Using the type safe API, you can do:
> 
>         KnowledgeBuilderConfiguration config =
> KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration();
>         config.setOption( ProcessStringEscapesOption.NO);
>         KnowledgeBuider kbuilder =
> KnowledgeBuilderFactory.newKnowledgeBuilder( conf );
> 
> If you prefer to use the property or configuration file, then it is:
> 
> drools.parser.processStringEscapes = false
> =======
> 
>     []s
>     Edson
> 
> 
> 2009/6/25 Corneil du Plessis <corneil at tsctech.com>
> 
>         I ran into some problems where a fairly simple rule fails in
>         5.0.1 and worked in 4.0.7.
>         
>         I have created an issue on JIRA
>         https://jira.jboss.org/jira/browse/JBRULES-2136 and was
>         wondering if someone else has come across that same type of
>         problem.
>         
>         The rule is:
>         
>         
>         package org.drools.rules.test
>         import org.drools.rules.test.SimpleStringType
>         rule "SimpleKeywordTest"
>         	dialect "java" 
>         when
>         	$_theFact : SimpleStringType( stringValue matches ".*\s(ADDR)\s.*|(ADDR)\s.*|.*\s(ADDR)" )
>         then
>         	$_theFact.setValid(false);
>         end
>         
>         
>         Whenever the stringValue contains something like 'MY ADDR' the
>         rule should fire but it doesn't in 5.0.1 
>         
>         Corneil
>         
>         
>         _______________________________________________
>         rules-users mailing list
>         rules-users at lists.jboss.org
>         https://lists.jboss.org/mailman/listinfo/rules-users
>         
> 
> 
> 
> 
> -- 
>  Edson Tirelli
>  JBoss Drools Core Development
>  JBoss by Red Hat @ www.jboss.com
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