From: Doug Ewell (email@example.com)
Date: Fri Nov 26 2004 - 15:46:51 CST
Philippe Verdy <verdy underscore p at wanadoo dot fr> wrote:
> If I want to encode explicit ligatures for the "ffi" cluster, if it is
> not hyphenated, I need to add ZWJ:
> "ef"+ZWJ+SHY+"f"+ZWJ+"i"+SHY+"ca"+SHY+"ce" (1)
Great Scott! You can use ZWJ to suggest a ligation opportunity, and SHY
to suggest a hyphenation opportunity, but if you need to suggest both
within the same word, let alone *between the same pair of letters*, you
have probably stepped over the plain-text line.
> I am not sure if the string coded as (1) above has the expected
> behavior, including for collation where it should still collate like
> the unmarked word "efficace"...
Collation is supposed to ignore formatting-type marks. In my copy of
allkeys.txt, which may not be the latest, ZWJ is Completely Ignorable
and CGJ is Level 3 Ignorable, so (1) should collate as you expect.
Perhaps a better question to ask would be why you need to indicate both
hyphenation points and ligation points in text that is going to be
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