Hello Andy,

I manually escaped \n and " characters and some errors were corrected,
thanks.  However, consider that I want to use the following string rules (
string_rules_variable):

#-*-mode: conf-unix-*-
@prefix time: <http://www.w3.org/2006/time#>
@include <owlmicro>

-> table(owl:sameAs).

#-----------------------------

sameAs_symmetry:
(?x owl:sameAs ?y)
-> (?y owl:sameAs ?x).

And as I said before this is how I am using in fuseki:
> :model_inf a ja:InfModel ;
>      ja:baseModel :tdbGraph ;
>      ja:reasoner [
>          ja:reasonerURL <http://jena.hpl.hp.com/2003/GenericRuleReasoner> ;
>          ja:rule "[string_rules_variable]"`;

But Fuseki is not recognizing prefix:


org.apache.jena.assembler.exceptions.AssemblerException: caught:
Expected '(' at start of clause, found @prefix



Do you have any thoughts on how to solve this?

Thanks in advance!






At.te,

Marcelo de Oliveira Costa Machado


Em qui., 8 de out. de 2020 às 05:47, Andy Seaborne <[email protected]>
escreveu:

>
>
> On 08/10/2020 07:41, Marcelo Machado wrote:
> > I am trying to create my own property rules in fuseki. To do so I am
> using
> > the Generic Rule Reasoning that allows me to use my own rules. When I use
> > this strategy with my rules in a file everything works fine:
> >
> > :model_inf a ja:InfModel ;
> >      ja:baseModel :tdbGraph ;
> >      ja:reasoner [
> >          ja:reasonerURL <http://jena.hpl.hp.com/2003/GenericRuleReasoner>
> ;
> >          ja:rulesFrom <file://...> ;
> >      ] .
> >
> > However, I would not want to use a file but add the rules directly as a
> > string. I tried just to copy the content of the rule files that worked in
> > the example above, but the repository was not created, apparently due to
> > special characters (e.g. #, \n...):
> >
> > :model_inf a ja:InfModel ;
> >      ja:baseModel :tdbGraph ;
> >      ja:reasoner [
> >          ja:reasonerURL <http://jena.hpl.hp.com/2003/GenericRuleReasoner>
> ;
> >          ja:rule "[${string_rules_variable}]"`;
>
> At a minimum that will need Turtle escapes for newlines. A NodeFormatter
>   formst outout - the Turtle rules are available directly via
> EscapeStr.stringEsc(string).
>
> The full grammar details are here: https://www.w3.org/TR/turtle/#terminals
>
> If you need to be it your self, it'll need newline  and " handling, two
> character \n and \"
>
>      Andy
>
> >      ] .
> > where ${string_rules_variable} (javascript string interpolation) contains
> > the rules read from the file.
> >
> > So, what am I doing wrong? I believe this is about escaping special
> > characters, if so, what would be the way to resolve it?
> >
> > At.te,
> >
> > Marcelo de Oliveira Costa Machado
> >
>

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