Re: [dotNetRDF-develop] Dotnetrdf-develop Digest, Vol 4, Issue 9

[Alexander S. <ale...@gm...>]

Hi Rob,

Sorry, I didn't notice it replaces parameters starting from the longest one.
But nevertheless there could be some conflicts. I think the best solution
would be to use regexp like this: String.Format(@"\s{0}\s", parameterName).

Regards,
Alexander

2010/3/25 <dot...@li...>

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>   1. Re: SparqlParameterizedString parameters bug (Rob Vesse)
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> Message: 1
> Date: Wed, 24 Mar 2010 13:58:49 -0700
> From: "Rob Vesse" <rv...@do...>
> Subject: Re: [dotNetRDF-develop] SparqlParameterizedString parameters
>        bug
> To: "dotNetRDF Developer Discussion and Feature Request"
>        <dot...@li...>
> Message-ID: <42331e35$36525672$43c91c49$@com>
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> Hi Alexander
>
> If you've set all the parameters then this shouldn't happen since it
> replaces parameters starting from the longest parameter name BUT if @graph1
> / @graph2 haven't been set then they will be partially replaced since those
> parameters will be inserted first.
>
> Problem is that it's quite hard to determine what exactly is a parameter
> since there's always the chance that you might have something like a email
> address in the query or a language tag on a literal which could clash with
> a parameter name
>
> Not really sure what if anything can be done to address this, could do some
> kind of regexp based replace and restrict parameter names to a specific set
> of characters (alphanumerics, hyphens and underscores?) if you think that'd
> be more useful?
>
> Rob
>
> ----------------------------------------
> From: "Alexander Sidorov" <ale...@gm...>
> Sent: Tuesday, March 23, 2010 2:39 AM
> To: dot...@li...
> Subject: [dotNetRDF-develop] SparqlParameterizedString parameters bug
>
> Hello!
>
> Current parameter replacing by it's value implementation in
> SparqlParamterizedString is a bit incorrect. The wrong thing is that it
> doesn't check whether found parameter string is a whole parameter or a part
> of another parameter. Example:
>
>
> We have "@graph", "@graph1" and "@graph2" parameters. We set "@graph"
> parameter value first - "@graph1" and "@graph2" will be partly replaced
> too.
>
>
> Regards,
> Alexander
>
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