Re: ZWL, ZWNL no difference?

Date: Thu Dec 30 1999 - 13:21:24 EST

       (I'm just posting to Unicode list since it's of general

       From: <> AT Internet on 12/30/99 10:24 AM

       Received on: 12/30/99

       To: Peter Constable/IntlAdmin/WCT, <> AT
       Subject: Re: ZWL, ZWNL no difference?

       on 12/29/99 9:15 PM, at 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

       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

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