---------------------- Forwarded by Peter
       Constable/IntlAdmin/WCT on 12/30/99 09:40 AM
       ---------------------------
       From: <unicore@unicode.org> AT Internet on 12/30/99 07:26 AM
       Received on:  12/30/99
       To:   Peter Constable/IntlAdmin/WCT, <unicore@unicode.org> AT
             Internet@Ccmail
       cc:
       Subject:  Re: Latin Ligatures and Unicode
       I agree; we should join these two threads back on the public
       list. Your posting would be a good addition to that, so you
       might repeat it.
       Mark
       peter_constable@sil.org wrote:
       >        ME>> In the paper I am preparing right now I have two
       identical
       >        > texts printed 20 years apart, in the same font, but
       with
       >        different uses of > different ligatures, both within
       the same
       >        text and between the two texts. > These aren't
       semantic
       >        ligatures, but they are certainly unpredictable and >
       we really
       >        need a solid mechanism to handle them.
       >
       >        KW>It seems to me that this is the kind of example
       that
       >        *undermines* the case for a ZWL, and strengthens the
       case for
       >        using markup for this kind of thing.
       >
       >        I'd agree with Ken here. I've suggested three
       minimally
       >        necessary conditions for characters that control
       ligation in
       >        plain text:
       >
       >        1) that there are cases where ligation determines a
       (lexical)
       >        semantic distinction
       >
       >        2) that these cases involve ligatures that are not
       predictable
       >        by context
       >
       >        3) that these cases involve ligatures that are not
       optional
       >        within the given writing system
       >
       >        It sounds like the example Michael mentions meets only
        the
       >        second of these conditions.
       >
       >        (By the way, is there a reason why there is a
       sub-thread on
       >        this topic that's happening on the unicore list rather
        than on
       >        the unicode list, where most of the discussion on this
        topic is
       >        taking place?)
       >
       >        Peter
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