[texhax] GFS Porson polytonic keymap?

[Plamen Tanovski]

> The document usage.pdf claims that a prefixed tilde produces a circumflex.
> But it doesn't, even in the document -- everywhere there is supposed to be
> a circumflex in the output, there is only a blank space in the pdf file!

Yes, this is definitely wrong. The tilde produces the tilde-accent
with the politonikogreek.

> Preceding the tilde with a backslash in GFS Porson results in a simple
> circumflex: \~v produces an omega with a circumflex. What I can't find
> is how to combine the circumflex with smooth/rough breathing.

Sorry, I'm not much familiar with greek, but as I see, there is no
character in the font with a circumflex in it. There is even no
circumflex in the LGR encoding. And v is not in the translantion
table.

Do you actually want the unicode character 1F67: "GREEK SMALL LETTER
OMEGA WITH DASIA AND PERISPOMENI"? This is \char'301 in the LGR encoding
and it's ascii input is <~w:

\documentclass{article}
\usepackage[LGR]{fontenc}
\usepackage[polutonikogreek]{babel}
\usepackage{gfsporson}
\renewcommand{\rmdefault}{porson}
\begin{document}
<~w \char'301
\end{document}

best regards,

-- 
Plamen Tanovski
Prager Str. 125, 04317 Leipzig
Tel. (03 41) 3 08 57 60