[rules-users] pattern

[Markus Helbig]

rule "PatternTest"
	when
		$pli:Item( eval(title.matches("^Test\s*")) )
	then
	                #
end

Having a second look i realize that the DroolsParser should not parse
the pattern string because it's java code ... and i can't use title
matches "^Test\s*" because title may have chars like (,\ and so on
that resolves into a RuntimeException (sth. with Groups not closed in
RegEx).

Cheers

Markus

2007/10/10, Edson Tirelli <tirelli at post.com>:
>
>    Markus,
>
>    Can you please show me your rule?
>
>    []s
>    Edson
>
> 2007/10/10, Markus Helbig <mhelbig81 at googlemail.com >:
> > Hi,
> >
> > no same exception when i use "\\s". JDK didn't change when i switched
> > from 3.x to 4.x
> >
> > Cheers
> >
> > Markus
> >
> > 2007/10/10, DELBART Vincent <delbart.v at mipih.fr>:
> > > Hi,
> > >
> > > I think you have to use "Test\\s+".
> > >
> > > I don't think it's a DROOLS problem (maybe jdk).
> > >
> > > V.
> > >
> > >
> > > -----Message d'origine-----
> > > De : rules-users-bounces at lists.jboss.org
> [mailto:rules-users-bounces at lists.jboss.org] De la part de
> Markus Helbig
> > > Envoyé : mercredi 10 octobre 2007 11:12
> > > À : rules-users at lists.jboss.org
> > > Objet : [rules-users] pattern
> > >
> > > Drools Documentation says:
> > >
> > > Matches a field against any valid Java Regular Expression. Typically
> that regexp is a String, but variables that resolve to a valid regexp are
> also allowed. It is important to note that different from java, if you write
> a String regexp directly on the source file, you don't need to escape '\'.
> Example:
> > >
> > > but
> > >
> > > "Test\s+" is a valid RegEx (it was valid in Drools 3.x too), but now:
> > >
> > > 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 \" \' \\ )
> > >
> > >
> > >
> > > What i'm doing wrong here?
> > >
> > > Cheers
> > >
> > > Markus
> > > _______________________________________________
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> >
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> >
>
>
>
> --
>   Edson Tirelli
>   Software Engineer - JBoss Rules Core Developer
>   Office: +55 11 3529-6000
>   Mobile: +55 11 9287-5646
>   JBoss, a division of Red Hat @ www.jboss.com
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