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query re IPv6 URL format
- Subject: query re IPv6 URL format
- From: [email protected] (Brian E Carpenter)
- Date: Wed, 15 Oct 1997 11:32:09 +0100
- In-reply-to: <[email protected]> from "Bob Hinden" at Oct 14, 97 11:47:01 am
The colons break both most existing URL parsers and the BNF
describing URLs. Eliminating the :: does not fix it. Believe me.
I spent an hour on the BNF.
>- Bob Hinden said:
> >If that was the decision then we need to codify it and tell
> >the world. I could live with it, if the URL parsers can handle
> >it. I'll check that with the URL guys.
> Maybe I am missing something, but...
> The IPv4 syntax is:
> It would seem to me that while
> has multiple ":"'s in it, given left to right parsing, I don't see anything
> ambiguous. The first thing after the "//" is either a DNS name, IPv4
> address, or an IPv6 address. If the current parsers can distinguish
> between "hursley.ibm.com" and "111.222.333.444", both of which use dots as
> separators, then could they also deal with IPv6 addresses with colons?
> Why can't the parsers learn how to do this? They need to be changed to
> handle IPv6 addresses anyway.