Greek small rho with dasia (and also psili): Problem with accent and LGR encoding

Question

The following minimal example

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[LGR,QX,T2A,T1]{fontenc}
\begin{document}
\fontencoding{LGR}\selectfont
ὉῥὙ ἠἈἐ Ὤἔ
\end{document}

sets all accents perfect.

However, if I use a different font like \usepackage{MinionPro}, the dasia above the rho is at a wrong height. If I use an own font (the horizontal kerning is not done yet), the same problem arises:

This is strange, because the LGR encoding stores a correct "rho with dasia" at its 251st code slot.

How can one fix this? Do I have to add a kind of vertical kerning to my font or is this an undiscovered problem of lgrenc.def which does not appear for Computer Modern because all the accents are at the same height anyway?

Ulrike Fischer · Accepted Answer · 2015-12-05T11:57:14.300

5

On my system LGR maps \accdasia r to glyph 251 but not ῥ which is defined as \accdasia \textrho and ends as "rho + accent" in the pdf. I get the real glyph only if I add a suitable mapping:

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[LGR,QX,T2A,T1]{fontenc}
\DeclareTextComposite{\accdasia}{LGR}{\textrho}{251}
\begin{document}
\fontencoding{LGR}\selectfont
\accdasia r
\accdasia \textrho
ῥ
\end{document}

It looks like an oversight to me (but my knowledge of greek is non-existing) so I suggest a bug report. I couldn't test if this solves your problem with MinionPro as I don't have it installed here.

edited Dec 05 '15 at 11:57

answered Dec 05 '15 at 11:48

Ulrike Fischer

327,261

After your answer and an additional look at lgrenc.def I am quite sure that this is an oversight, as \DeclareTextComposite{\accdasia}{LGR}{r}{251} appears twice and it should obviously be \DeclareTextComposite{\accdasia}{LGR}{\textrho}{251} at the second appearing (as you suggested). I will try to report it. – Linus Romer Dec 05 '15 at 18:38
Günter Milde has fixed the bug and has uploaded it on CTAN (e.g. ctan.math.utah.edu/ctan/tex-archive/language/greek/greek-fontenc/lgrenc.def) – Linus Romer Dec 07 '15 at 18:20

score 0 · Answer 2 · answered Dec 05 '15 at 10:07

Running your document with xelatex and Minion Pro looks ok:

\documentclass{article}
\usepackage{fontspec}
\setmainfont{Minion Pro}
\begin{document}
ὉῥὙ ἠἈἐ Ὤἔ \itshape ὉῥὙ ἠἈἐ Ὤἔ
\end{document}

Greek small rho with dasia (and also psili): Problem with accent and LGR encoding

2 Answers2