[tex-hyphen] hyphenating ancient Greek with LuaLaTeX

[Pablo Rodríguez]

On 09/21/2010 09:56 PM, Arthur Reutenauer wrote:
> 	Hello Pablo,
>
>> Would you be so kind to show me how the following sample could work in
>> LuaLaTeX?
>
>    It couldn't.  You need to tell LaTeX to load the patterns, the most
> straightforward way is by adding Babel with the ancientgreek option:
>
>> \documentclass{minimal}
>
> \usepackage[ancientgreek]{babel}

Thanks for your help, Arthur.

I'm afraid that ancientgreek is not a language defined by babel, only 
hyphenation patterns loaded by babel itself.

But the code modified from 
http://tug.org/pipermail/luatex/2010-June/001603.html:

\documentclass[12pt]{article}
\usepackage[a5paper]{geometry}
\usepackage[greek]{babel}
\usepackage{ifluatex}
\usepackage{ifxetex}
\ifluatex
\usepackage{fontspec}
\setmainfont{Theano Didot}
\renewcommand*{\greektext}{}
\else
\ifxetex
\usepackage{xltxtra}
\setmainfont{Theano Didot}
\renewcommand*{\greektext}{}
\else
\usepackage[utf8x]{inputenc}
\fi
\fi
\begin{document}
\showhyphens{χαλεπὰ}
ἡ ῥητορική  ἐστιν  ἀντίστροφος  τῇ διαλεκτικῇ: ἀμφότεραι  γὰρ  περὶ 
τοιούτων  τινῶν  εἰσιν  ἃ κοινὰ  τρόπον  τινὰ  ἁπάντων  ἐστὶ  γνωρίζειν 
  καὶ  οὐδεμιᾶς  ἐπιστήμης  ἀφωρισμένης: διὸ  καὶ  πάντες  τρόπον  τινὰ 
  μετέχουσιν  ἀμφοῖν: πάντες  γὰρ  μέχρι τινὸς καὶ ἐξετάζειν καὶ ὑπέχειν 
λόγον καὶ ἀπολογεῖσθαι καὶ κατηγορεῖν ἐγχειροῦσιν.
\end{document}

is hyphenated right with latex, pdflatex, xelatex, but not with LuaLaTeX.

If you follow the thread of the message above, it seems that something 
is missing at the engine level (sorry, but this is all Greek to me). And 
there seems to be a bug that needs to be fixed before in LuaTeX 
(http://tug.org/pipermail/luatex/2010-June/001609.html points to a 
LuaTeX bug, but requires registration).

Am I missing something or does Lua(La)TeX need improvements to hyphenate 
Greek?

Thanks for your help,


Pablo