From: Richard Wordingham (richard.wordingham@ntlworld.com)
Date: Mon Jun 12 2006 - 21:31:27 CDT
Karl Pentzlin wrote on Tuesday, June 13, 2006 at 12:48 AM
> Looking at
> http://www.beepworld.de/memberdateien/members85/friedhelmschmitz/dielnschbank1.pdf
> p. 9 and 11 (see attached image from p. 9), you see the sequence "sch"
> with a ligature tie below (representing the phoneme written z in other
> languages).
>
> If I had to propose this for Unicode, I would propose a single "triple
> diacritic" COMBINING TRIPLE BREVE BELOW, rather than precombined
> lower-, title- and uppercase "sch with ligature tie" in rough analogy
> to U+017A LATIN SMALL LETTER TH WITH STRIKETHROUGH.
I think triple diacritic is the way to go, though it would be good to 
collect examples of triphthongs and trigraphs for which such marks exist.  I 
think I've seen reference to a combining triple breve.  We also need single 
accents to go above and below the double (i.e. two letter) marks - they 
might also serve for the triple marks.  The sort of think I have in mind is 
a way of encoding the acute in a double breve plus acute, as you might want 
to mark a stressed broken vowel in Old English.
Rendering support might not be easy, though.  Your font might need to 
convert the character sequences to ones in a prepared list.
Richard. 
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