# Re: The URN: wrapper and URLs...

Tim Berners-Lee (timbl@www3.cern.ch)
Mon, 18 Oct 93 10:42:19 +0100

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    Date: Mon, 18 Oct 93 10:42:19 +0100

    From: Tim Berners-Lee <timbl@www3.cern.ch>

    Message-Id: <9310180942.AA01336@www3.cern.ch>

    To: Peter Deutsch <peterd@bunyip.com>

    Subject: Re: The URN: wrapper and URLs...

>From: Peter Deutsch <peterd@bunyip.com>
>Date: Sun, 17 Oct 1993 02:04:11 -0400

>I'm not sure that the demarcation issue should be treated
>as outside the scope of the URL spec. Seems to be an
>integral part of things. I'm wondering why it was decided
>to not mention the "<..>" convention in the URL spec?

As I maybe just mentioned, this was an omission on
may part as editor, and I have corrected it. I append
the text of the correction

Tim

___________________________________________________

Wrappers for URIs in plain text

This section does not form part of the URL specification.

URIs, including URLs, will ideally be transmitted though protocols
which accept them and data formats which define a context for them.
However, in practice nowadays there are many occasions when URLs are
included in plain ASCII non-marked-up text such as electronic mail
and usenet news messages.

In this case, it is convenient to have a separate wrapper syntax to
define delimiters which will enable the human or automated reader to
recognize that the URI is a URI.

The recommendation is that the angle brackets (less than and greater
than signs) of the ASCII set be used for this purpose.

These wrappers do not form part of the URL, are not mandatory, and
should not be used in contexts (such as SGML parameters, HTTP
requests, etc) in which delimiters are already specified.

Example

Yes, Jim, I found it under <ftp://info.cern.ch/pub> but
you can probably pick it up from <ftp://ds.internic.net/rfc>.

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