> -----Original Message-----
> From: Michael Everson
...
> At 20:39 -0800 2002-03-03, Dan Wood wrote:
> >Hi,
> >
> >I'm not finding hints of this in any of the FAQ or "where's my 
> >character" docs .... I'm trying to create (or find) the "oo" pair 
> >with a combining macron (0304) and combining breve (0306) over the 
> >pair of them together, as in these images:
> >
> ><http://www.bartleby.com/images/pronunciation/oomacr.gif>
> ><http://www.bartleby.com/images/pronunciation/oobreve.gif>
> 
> I think the COMBINING GRAPHEME JOINER is suppoised to be used here. 
> You put it between the two o's and then follow that string with a 
> combining macron and it is supposed to centre itself over the whole 
> lot.

The problem here is that the COMBINING GRAPHEME JOINER only affects
*enclosing* combining marks (and combining marks *following* an
enclosing one).  ("Enclosing" should here be interpreted as
of general category Me, but also dependent vowels are affected
the same way.)  Since combining macron/breve are not enclosing
(in either sense), this does not work: the breve (macron) only
applies to the last base letter.  I vaguely suggested adding
an enclosing (in some sense) invisible combining character to
solve this: <o, CGJ, o, invisible-enclosing, combining breve>.
No character has been designated for such use, though.  And I
haven't made a formal proposal yet.

                /kent k


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