(I'm just posting to Unicode list since it's of general
interest.)
From: <unicore@unicode.org> AT Internet on 12/30/99 10:24 AM
Received on: 12/30/99
To: Peter Constable/IntlAdmin/WCT, <unicore@unicode.org> AT
Internet@Ccmail
cc:
Subject: Re: ZWL, ZWNL no difference?
on 12/29/99 9:15 PM, ECOLING@aol.com at ECOLING@aol.com wrote
(to Mark):
>> Suppose that you have a current font, having a list of
>> ligatures.
>>
>> For ZWNL, the only thing the font vendor has to do is map
ZWNL to an >> invisible, zero-width glyph.
>
> Actually, it must also be disregarded for searching and
sorting.
>
Exactly, which means that OS- or library-level searching and
sorting algorithms would need to be updated to do this.
(And rendering algorithms would have to be rewritten to force
ZWL/ZWNL to be invisible even in cases where the font fails to
do so.)
As I say, architectural changes of this sort *require* OS
and/or software updates.
=====
John H. Jenkins
jenkins@apple.com
tseng@blueneptune.com
http://www.blueneptune.com/~tseng
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