Re: Arabic cursive in Unicode


Mike Wright wrote:
As you say, the 0600 range of codes represent abstract "characters", but
not concrete glyphs. In Arabic, glyph forms are context-dependent. The
"Presentation forms" provide glyphs for pretty much the full variety of
expected contexts.

Yes, the 0600 range has the Platonic forms, which are then rendered as
the appropriate glyphs by software such as Uniscribe. In (shudder)
Windows there's a routine called USP10.dll (USP = Unicode Scripts
Processor). You can check this out on google.


If the preceding character is non-alphabetic, you see the isolated form.
Otherwise, you see the final form, which connects to the preceding
character if appropriate.

When another alphabetic character is typed, the previous final form
changes automatically to a non-final form (if such a form exists for
that character). The newly-typed character will be a final form.

Uniscribe does exactly the same in Windows.

Nigel

--
ScriptMaster language resources (Chinese/Modern & Classical
Greek/IPA/Persian/Russian/Turkish):
http://www.elgin.free-online.co.uk

.

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