I am uncomfortable with 'x'. (Contrary to my previous message, as I have thought more about it.)
I do not agrue against 'x' for any of the reasons offered by Ed, and I do not argue for 'u' for compatibility with marc21 - I want to be very clear about that.
The problem is that 'x' is often used to mean "any and all digits", so that "8xx" literally means "all values 800 through 899" when what we want it to mean is "one specific value in the range of 800 through 899 (inclusive)". I think we need to kick around another character, if 'u' is considered unacceptable. I find it unfortunate, because I think that 'u' is the most natural character to use for this purpose.
> -----Original Message-----
> From: Discussion of the Developing Date/Time Standards
> [mailto:[log in to unmask]] On Behalf Of Kevin S. Clarke
> Sent: Tuesday, November 23, 2010 10:31 AM
> To: [log in to unmask]
> Subject: Re: [DATETIME] Proposal to change unknown marker from 'u' to
> On Tue, Nov 23, 2010 at 9:22 AM, Bruce D'Arcus <[log in to unmask]>
> > In sum, then, traditions from MARC should be one data point, but
> > should not at all drive decision-making.
> Though I come from a cataloging background, I agree 'x' has a wider use
> than 'u' -- I'd hope this datetime spec is aiming for the broadest
> audience possible.