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



 (4) "Private-use subtags require agreement between parties
  intending to use them. They MUST NOT be distributed beyond the scope
  of the relevant agreements. Subtags intended for wider
  distribution MUST be registered. Developers of private-use subtags are
  warned that, despite this prohibition, private-use subtags might
  "leak" beyond the scope of the agreement defining them.  This means that
  applications making use of private-use tags need to be able to cope with
  conflicting (same character sequence but differing semantics) and unknown
  private-use tags.

I have no problem with any of the changes you made here; just one point on an omission which I'm willing to abandon immediately if my case is unconvincing. Regarding the line in my original:

"There MUST NOT be consequences for any application which chooses to ignore private use tags."

This, in my mind, was a protection against the MS-JVM phenomenon, where an organization with wide product distribution can implement its own private refinements, and then, simply through product saturation, win a position with products that don't quite "work" without their refinements. To make sure that even an enormous company or organization can't, simply through product share, implement a fait accompli adaptation of the standard.

If that possibility doesn't bother anyone, I willingly abandon the petition on that line.

Dylan

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