W3C home > Mailing lists > Public > uri@w3.org > February 2004

Re: uri handling of hosts is too restrictive

From: by way of Martin Duerst <pk@TechFak.Uni-Bielefeld.DE>
Date: Sun, 15 Feb 2004 12:39:44 -0500
Message-Id: <4.2.0.58.J.20040215123940.0577cab0@localhost>
To: uri@w3.org




 > >So there is no doubt that host names can contain only ASCII letters,
 > >digits, hyphens, and dots.  It's an open-and-shut case.
 >
 > So Stephen's host, with an underscore, just doesn't exist, or what?

It may exist, but it breaks the rules. It's simply not a valid hostname,
period.

 > Even if every browser actually gets there? Is the tail wagging the

I really doubt that "every" browser "gets there", especially if the
underlying DNS infrastructure enforces hostname syntax rules, which it is
free to do.

 > dog here, or what do you think is going on?

No, it's just that "it works" is probably not the best argument to base
standards on if you use building blocks which introduce or carry with them
their own limitations.

-Peter
Received on Sunday, 15 February 2004 12:44:04 UTC

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