% Test Babel-Greek with LuaTeX and 8-bit fonts
% © 2022 Günter Milde

% Setup for LuaTeX with 8-bit fonts
\newcommand{\SETUP}{
  % LGR must be defined before loading "luainputenc" (bug in luainputenc?)
  \usepackage[LGR,T1]{fontenc}
  \usepackage{lmodern}
  % \usepackage[largesc]{newtxtext}
  % \DeclareFontFamilySubstitution{LGR}{ntxtlf}{NimbusSerif}
  \usepackage[utf8]{luainputenc}
  \newcommand*{\greekfontencoding}{LGR} % force LGR setup¹

  \usepackage[greek,
              % greek.local-LGR-fixes,
              english]{babel}
  % Uncomment the desired language variant
  % \languageattribute{greek}{polutoniko}  % "modern" polytonic Greek
  \languageattribute{greek}{ancient}  % ancient Greek
}

\newcommand{\SETUPDOC}{%
This test is
\ifdefined\luatexversion compiled
\else                    intended for but \textbf{not} compiled
\fi
with LuaTeX in 8-bit compatibility mode.
It loads the \pkgref{luainputenc} package for UTF-8 decoding
and sets \texttt{\textbackslash greekfontencoding} to LGR.

Hyphenation in Greek text parts fails (would require the
8-bit hyphenation patterns, i.a., a loader fix for LuaTeX).
}

\input{test-greek.tex}

% ¹TODO: Currently, defining \greekfontencoding must be done with
% 	 \def or \newcommand* and fails with \newcommand because
%    	 of the fragile string comparison using \ifx in greek.ldf!