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[Ltru] Re: [psg.com #1061] eliminate (or proscribe) Private Use Tags



Re: [psg.com #1061] eliminate (or proscribe) Private Use Tags

Dylan N. Pierce <dylanpierce at megared dot net dot mx> wrote:

> But if it's doing "Just this," then let's put our money where our
> mouths are and say, "Just this." We don't need private use tags at
> all if we are in agreement that corollary information, no matter how
> closely related, should be handled outside the tag and, as Randy
> notes, we shouldn't encourage the twisting of the tag by saying,
> "Here's your scribble area."

I don't think it's a matter of encouraging.  Users who want to twist the
tag will do so, whether we want them to or not.  Private-use subtags in
"x-" give them a way to stay conformant while still tacking private crud
onto the end of a tag, and it gives tag consumers a way to stay
conformant while choosing to either (a) attempt to interpret the crud or
(b) ignore it.

> Cripes, all of XML is the scribble area; we can afford
> to keep the tag clean.

This language-tag thing isn't just for XML, as we've said.

Randy replied:

> Would a stronger version of this (or the following paragraphs address
> the concerns?  If so, proposed text would be appreciated.

I think Section 4.5 is strong enough as it is.  It says that PU tagging
requires a private agreement, which is true.  It says to be cautious
about allowing them to leak into the general environment, which is true.
It employs the rather strong word "useless."  I don't see much benefit
in either removing the feature or beating users over the head with
warnings not to use it.

More later, as I get to additional messages on this topic.  I'm making
my way through 5 digests' worth of LTRU material, which I do NOT get a
chance to respond to while I'm at work.

--
Doug Ewell
Fullerton, California
http://users.adelphia.net/~dewell/



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