[tex-hyphen] Hyphenation of polytonic Greek (expressed in Unicode)

[Philip Taylor]

OK, so if looks as if I am going to have to use \loop \if \repeat
in conjunction with \XeTeXcharclass ‹char slot› [=] ‹interchar class›
to set up the XeTeX char class for polytonic Greek, but looking
at Charmap for Palatino Linotype it would seem as if at least
two non-contiguous ranges will be needed (maybe more).  Are there
any standard modules that can be used to set this up (remember :
XeTeX, not XeLaTeX), and/or are these ranges easily located from
the Unicode documentation ?  We'll pass on Hebrew for now :)

** Phil.