IRI validation and conversion

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Henri Sivonen - 17 Apr 2006 14:16 GMT

I'm looking for code (Open Source, non-viral license, runs on JDK 1.4.2)
for doing the following:

* Check if a string is an IRI per RFC 3987.
* Check if a string is an IRI reference per RFC 3987.
* Convert an IRI into an URI with IDN-awareness for the http scheme.
* Maximally IRIfy and URI with IDN-awareness for the http scheme.

Any suggestions?

The best candidate so far is the com.hp.hpl.jena.iri package.

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Henri Sivonen
hsivonen@iki.fi
http://hsivonen.iki.fi/

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Roedy Green - 17 Apr 2006 20:44 GMT

> * Check if a string is an IRI per RFC 3987.

http://rfc3987.rfc.8x.ca/
an IRI is an international URI, i.e. a URI with an extended character
set.

Very likely you might want some subset of the IRI spec.

You might see what the Java URN and URI classes do. If they parse for
you, you might then use a regex for fine tuning.

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Canadian Mind Products, Roedy Green.
http://mindprod.com Java custom programming, consulting and coaching.

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Henri Sivonen - 24 Apr 2006 22:31 GMT

> > * Check if a string is an IRI per RFC 3987.
>
> http://rfc3987.rfc.8x.ca/
> an IRI is an international URI, i.e. a URI with an extended character
> set.

Yes.

> Very likely you might want some subset of the IRI spec.

No, I want to check exactly for IRIs to the extent the spec is exact.

> You might see what the Java URN and URI classes do. If they parse for
> you, you might then use a regex for fine tuning.

The JDK classes won't be even nearly up to date until Mustang.

The library I already mentioned uses JFlex--not just regexps.

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Henri Sivonen
hsivonen@iki.fi
http://hsivonen.iki.fi/

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IRI validation and conversion

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