Actually the primary reason was that those characters have different
numeric properties (as well as different shapes).
Michael Everson wrote:
> Ar 09:49 -0800 2000-01-02, scríobh Doug Ewell:
> >Just to play devil's advocate, and to improve my understanding...
> >What was the motivation then for encoding the block from U+06F0 to
> >U+06F9, EXTENDED ARABIC-INDIC DIGIT ZERO through NINE? Aren't these
> >just Persian glyph variants of U+0660 to U+0669, ARABIC-INDIC DIGIT
> >ZERO through NINE?
> Roundtrip legacy compatibility characters.
> Michael Everson ** Everson Gunn Teoranta ** http://www.egt.ie
> 15 Port Chaeimhghein Íochtarach; Baile Átha Cliath 2; Éire/Ireland
> Vox +353 1 478 2597 ** Fax +353 1 478 2597 ** Mob +353 86 807 9169
> 27 Páirc an Fhéithlinn; Baile an Bhóthair; Co. Átha Cliath; Éire
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