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Standard X- name prefix?

  • To: "Discussion list of the IUCr Committee for the Maintenance of the CIF Standard (COMCIFS)" <comcifs@iucr.org>
  • Subject: Standard X- name prefix?
  • From: Joe Krahn <krahn@niehs.nih.gov>
  • Date: Wed, 14 Mar 2007 11:46:40 -0400
I added my own prefix to the prefix registry for general-purpose local
data types. Perhaps it would be better to generalize the idea similar to
mail/HTTP and other internet headers which reserve the "X-" prefix to
mean a non-standard name. This could be reserved for local developmental
work, or temporary additions not defined in the current dictionary.

Is this an acceptable idea? Is anyone already using a data name starting
with "X-"? (I wouldn't be too surprised if there is a "X-Ray..." name.

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