2003-01-13.  Note from Robin Cover.

Disclaimer with respect to the contents of the file at
http://xml.coverpages.org/xml-ISOents.zip

The file at 'http://xml.coverpages.org/xml-ISOents.txt' has been
patched to reflect edits thought to be necessary,
based upon conversations with Mike Brown [mike@skew.org] and Rick Jelliffe
[ricko@allette.com.au].  The contents of the previous version are now at
http://xml.coverpages.org/xml-ISOents19980721.txt

The entity files in this ZIP archive (*.pen) are unchanged

Rick Jelliffe is working on a revision of this data to provide standard Unicode
mappings for the standard ISO entity sets.  From a note of October 30, 2002:

       "There are different mappings from DOCBOOK, MathML, HTML,
       Unicode (Cowan), me [Rick Jelliffe], TEI (Rathz), Maler,
       and others. All vary, and some have errors. DOCBOOK and
       MathML have recently reworked their mappings to be much
       closer than each other, however there are a couple of entities
       that are ambiguous.  Furthermore, some entities come from
       several sources: the original 8879 sets, the revised and
       expanded  ISO sets, and from the HTML entity set.  Sometimes
       they seem to have swapped their glyph during transfer.
       I have been in contact, as part of this project, with
       David Carlisle (MathML), Norm Walsh (DOCBOOK), ISO SC34,
       Sebastian Rathz (TEI/Oxford), John Cowan and others (Unicode),
       the W3C I18n WG, and some members of the W3C WG.  The intent
       is to produce a survey on the various entities mappings
       and suggestions for a standardized set of mappings... with
       the hope that *at least* uncontentious sets (Latin1) can
       be agreed on, and people can be warned about variants..."

There are known errors (typographical and otherwise) in the
documents, and there are discrepancies among the entity sets that have been
adopted by various standards. Efforts to resolve these issues are ongoing.  (rcc)