At 07:59 -0400 2003-09-15, Peter T. Daniels wrote:

>Michael Everson wrote:
>>
>> At 04:43 -0400 2003-09-15, Tex Texin wrote:
>>
>> >Now that is an interesting comment, and I probably should know this, and a
>> >quick look didn't turn up the answer: What is the criteria by which Unicode
>> >determines what is in or out of a script?
>>
>> Common sense?
>
>Doesn't look like common sense to me to say that Arabic is a subset of
>Urdu.

Heavens. You are mixing language and script. The basic Arabic script
is used for the Arabic language. Extensions are made to it for
Qur'anic arabic, Urdu, Persian, and other languages.

>Is Latin a subset of English?

Non sequitur.

> > What? Just because Urdu has a few letters that Arabic does not, and
> > just because it prefers a different type style, does not make it a
> > separate script from Arabic. To write the word Urdu, you write ALEF
> > REH DAL WAW.
>
>To write the word corvus, do you write Cee Oh Ar Vee You Ess? No, you
>don't.

Of course you do. I was not referring to the pronunciation of the
letter names. I could have used the Unicode hex references but those
are less legible.
--
Michael Everson * * Everson Typography * * http://www.evertype.com