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From Costin Manolache <>
Subject Re: antlib / proposal of Peter Reilly
Date Wed, 21 May 2003 14:25:41 GMT
Stefan Bodewig wrote:

> On Mon, 19 May 2003, peter reilly <> wrote:
>> 1) are build script authors allowed to specify arbitary
>>     URIs for ant type definitions?
>>     I do not think this is a good idea.
> I've seen that Costin and Conor prefer that antlibs specify their URI
> themselves.  Could anybody please explain why - and at the same time
> please also explain why user choice would be bad here?  I feel I must
> be missing something.

That's consistent with most of the current uses of XML namespaces - you
don't see users picking their favorite XHTML or XSLT namespace URI. 

It's also about tools - things like autocompletion in an xml editor,
transformations, etc. 

I can add more - but I'm curious about the reverse, why would you consider
letting the users pick the namespace URI ? If someone looks at a build.xml
file, and see an "antlib:net.sf.contrib" he'll probably know what tags are 
used and understand it. If he sees "myFavoriteAntlib" - and this is
associated with contrib in some imported xml file - it'll be a bit harder (
he can still guess from the <if>s ). 


>> 2) what should ant do with URIs that it does not recognize?
>>     a) use current method - unknown elements
>>     b) ignore them
>>     c) explicty say that the ns uri is not supported
>>     d) convert them to Text in task/typedefs (the suggestion below)
> I'm on the fence between a) and b) and wouldn't like either c or d too
> much.
> Stefan

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