lgrx (6jul12)

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+% Test definitions for accents and composite accents in Greek
+\documentclass[british,greek,a4paper]{article}
+\pagestyle{empty}
+\enlargethispage{4ex}
+\usepackage{cmap} % fix search and cut-and-paste in Acrobat Reader
+
+\usepackage%
+{lmodern}
+% {gfsartemisia}
+% {gfsbaskerville}
+% [default]{gfsbodoni}
+% \usepackage[default]{gfscomplutum}
+% {gfsdidot}
+% [default]{gfsneohellenic}
+% {lmodern} \usepackage{gfsporson} \renewcommand*\rmdefault{porson}
+% [default]{gfssolomos}
+% {kerkis}
+% {teubner}
+\renewcommand{\ttdefault}{txtt}
+
+% Load the extended font encoding definitions (after font package)
+\usepackage[LGRx,T1]{fontenc}
+
+\usepackage{listings}
+\lstset{basicstyle=\ttfamily}
+
+% Babel package::
+
+\usepackage{babel}
+% revert the polutonikogreek definition of \~:
+\addto\extraspolutonikogreek{\renewcommand*{\~}{\a~}}
+\addto\extrasgreek{\renewcommand*{\~}{\a~}}
+
+% "Lipsiakos" italic font `cbleipzig`:
+\newcommand*{\lishape}{\fontencoding{LGR}\fontfamily{cmr}%
+		       \fontshape{li}\selectfont}
+\DeclareTextFontCommand{\textli}{\lishape}
+
+
+\begin{document}
+
+\selectlanguage{british}
+
+\section*{Greek diacritics with standard accent macros}
+
+% The greek diacritics are
+%
+% dase\~ia
+% yil\'h
+% t\'onos
+% bare\~ia
+% perispwm\'enh
+% dialutika
+
+\texttt{lgrxenc.def} is a comprehensive font encoding definition file.
+Diacritics can be input using an extension of the standard macro
+commands. Composite diacritics are input as
+backslash followed by the LGR transliteration.%
+\footnote{This makes it easy to follow the advise in
+	  \emph{teubner-doc}: ``typeset your paper with the regular
+	  accent vowel ligatures and [{\ldots}] substitute them in the
+	  final revision with the accented vowel macros only in those
+	  instances where the lack of kerning is disturbing''.}
+
+The example in greek-usage.pdf:
+%
+\begin{quote} \selectlanguage{greek}
+    T\'i f\'hic? \<Id\`wn \>enj\'ede pa\~id''
+    \>eleuj\'eran t\`ac plhs\'ion N\'umfac stefano\~usan,
+    S\'wstrate, \>er\~wn \'ap\~hljec e\>uj\'uc?
+\end{quote}
+is input as
+\begin{lstlisting}
+    T\'i f\'hic? \<Id\`wn \>enj\'ede pa\~id''
+    \>eleuj\'eran t\`ac plhs\'ion N\'umfac stefano\~usan,
+    S\'wstrate, \>er\~wn \'ap\~hljec e\>uj\'uc?
+\end{lstlisting}
+%
+Improvements:
+%
+\begin{itemize}
+
+\item Accents can be placed on any character:%
+  \footnote{Babel's \emph{polutonikogreek} option re-defines
+    \textbackslash\textasciitilde (even for
+    Latin with \textbackslash textlatin).
+    This document reverts the babel definition in the preamble
+    to make the tilde/perispomeni-accent work as usual in both,
+    English (\textgreek{ni\~n\~o} ni\~n\~o) and Greek
+    (\foreignlanguage{greek}{ni\~n\~o \textlatin{ni\~n\~o}}). }
+    \textgreek{\"k \`l \'m \~<n \<o \>'p \>9 \`\>-}
+
+\item Kerning is preserved
+  \selectlanguage{greek}
+  \begin{tabular}[t]{llll}
+     & \textlatin{roman} & \textlatin{italic} & \textlatin{cbleipzig} \\
+    \foreignlanguage{british}{accent macro:}  &
+      a\>ut'os & \emph{a\>ut\'os} & \textli{a\>ut\'os} \\
+    \foreignlanguage{british}{transliteration:} &
+      a>ut'os & \emph{a>ut'os} & \textli{a>ut'os}\\
+  \end{tabular}
+  \selectlanguage{british}
+
+  Kerning only works with pre-composed glyphs:
+  \textgreek{A\"UA $\rightarrow$ A\~UA}
+  (like in any font encoding: AVA $\rightarrow$ A\~VA).
+
+
+\item Following Greek typesetting convention, diacritics (except the
+  dialytika) are placed to the left of capital letters and and dropped
+  by \verb|\MakeUppercase|:
+
+  \begin{quote} \selectlanguage{greek}
+    \'antropos $\mapsto$ \MakeUppercase{\'antropos},
+    \>'antropos $\mapsto$ \MakeUppercase{\'>antropos},\\
+    Aqill\'eas $\mapsto$ \MakeUppercase{Aqill\'eas},
+    \>Aqille\'us $\mapsto$ \MakeUppercase{\>Aqille\'us}.
+  \end{quote}
+
+  % Greek differs from Latin in that it capitalises letters with
+  % diacritics differently, depending on whether the entire word is in
+  % capitals (whereupon diacritics are eliminated), or the initial is
+  % capitalised only, as in the first word in a sentence or in a title
+  % (whereupon the diacritics are retained, although they appear to the
+  % left of the letter rather than above it.)
+
+  The dialytika is printed even in cases where it's not needed
+  in lowercase:
+  \begin{quote} \selectlanguage{greek}
+    \'aulos $\mapsto$ \MakeUppercase{\'aulos},
+    \'>aulos $\mapsto$ \MakeUppercase{\'\>aulos}%
+    \footnote{\selectlanguage{british} Fails if written as
+      \texttt{\textbackslash >'} in \texttt{polutonikogreek}
+      (which changes the \texttt{\textbackslash uccode} of
+      \texttt{\textbackslash >}):
+      \selectlanguage{greek} \'>aulos $\mapsto$ \MakeUppercase{\>'aulos}}
+    % from http://diacritics.typo.cz/index.php?id=69  μάινα -> ΜΑΪΝΑ
+    m\'aina $\mapsto$ \MakeUppercase{m\'aina},\\
+    % from  http://de.wikipedia.org/wiki/Neugriechische_Orthographie#Das_Trema
+    % κέικ, ἀυπνία/αϋπνία
+    k\'eik, $\mapsto$ \MakeUppercase{k\'eik},
+    \>aupn\'ia $\mapsto$ \MakeUppercase{\>aupn\'ia}.
+  \end{quote}
+\end{itemize}
+
+\selectlanguage{british} Composite diacritics can be specified as
+backslash + LGR transliteration%
+\footnote{However, \textbackslash{}MakeUppercase fails, if a
+	  non-escaped tilde character (like in
+	  \texttt{\textbackslash{}>\textasciitilde{}a}) is used in a
+	  document which does not define the \emph{greek} or
+	  \emph{polutonikogreek} language.
+	 }
+or combined accent macros, e.\,g. \textgreek{\~>a} can be written as
+\begin{quote}
+  \verb+\~>a+, \verb+\>~a+,
+  \verb+\~\>{a}+, or \verb+\~\>a+.
+\end{quote}
+However, braces in composite accents
+(\verb+\~{\>a}+, \verb+\~{>a}+, or \verb+\~{\>{a}}+)
+lead to errors.
+
+Accent macros can start with \verb|\a| instead of \verb|\| when the
+short form is redefined, e.\,g. inside a \emph{tabbing} environment.
+This works also for the new-defined Dasia and Psili shortcuts
+(becoming \verb|\a<| and \verb|\a>|):
+%
+\begin{quote}
+\selectlanguage{greek}
+\begin{tabbing}
+T'i f'hic? \= T\a'i f\a'hic? \\
+<Id`wn \> \a>enj\a'ede pa\a~id
+\end{tabbing}
+\end{quote}
+
+\end{document}