pseudo-localization variants

Peter Constable petercon at
Thu Dec 20 05:33:42 CET 2012

We're not disagreeing. Michael asked what was wrong with a private-use subtag, and my reply was meant to be, "Nothing, but my concern had nothing to do with use of private-use subtags."


-----Original Message-----
From: ietf-languages-bounces at [mailto:ietf-languages-bounces at] On Behalf Of Doug Ewell
Sent: Wednesday, December 19, 2012 2:55 PM
To: ietf-languages at
Subject: Re: pseudo-localization variants

Peter Constable <petercon at microsoft dot com> replied to Michael:

>> Why should a private-use scenario be of concern?
> In well-designed systems, it might not be a concern. But there's a 
> risk that a user / the user's data might encounter a process that 
> chokes on an invalid tag.

A valid private-use tag is valid. An invalid private-use tag is invalid.

Just saying.

Doug Ewell | Thornton, Colorado, USA | @DougEwell  

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