From: John Cowan (
Date: Wed Feb 23 2000 - 12:22:20 EST

Peter Constable wrote:

> Again, it would be very good if there were an interoperable way
> for end users to provide information about semantics of their
> custom PUA characters in a way that applications can make use
> of it.

An easy start would be to publish the character properties in UnicodeData
format. That file doesn't do it all, but it provides most properties of interest:
name, general category, combining class, decompositions, numeric values,
general 1-1 case mappings, and BIDI: 14 properties in all

There are also separate files, for historical reasons, providing Arabic/Syriac
shaping classes (2 props), East Asian widths (1 prop), line breaking properties
(1 prop), and case mappings that are not general or not 1-1 (1 prop, effectively).


Schlingt dreifach einen Kreis vom dies! || John Cowan <> Schliesst euer Aug vor heiliger Schau, || Denn er genoss vom Honig-Tau, || Und trank die Milch vom Paradies. -- Coleridge (tr. Politzer)

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