multiple encoding specs (Re: IE5.0 does not conform to RFC2376)

Gavin Thomas Nicol gtn at
Wed Apr 21 19:19:13 BST 1999

> >   a) You have to fix it by parsing a peice of arbitrary syntax, which
> >      proxies etc. will most likely not do, for performance reasons.
> Now in a different message you were saying that cacheing the
> results of parsing the encoding declaration was not worth it because the
> required to re-parse it each time was minimal. So I donm't see how you
> can now have it be a performance hit.

In proxies, the cost/complexity ratio is very different.

> Well in theory yes, but in practice the advantages seem to me to
> outweigh the disadvantages.
> If someone cares enough about an XML document that they think
> a changed encoding declaration has destroyed its value (eg, a digitally
> transaction encoded in XML) then they don't want any dumb - or even
> smart - proxies merrily changing from UTF-8 to 8859-2 or whatever
> either.

The problem is that you can't assume smart proxies.

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