%%
%% Ein Beispiel der DANTE-Edition
%%
%% 1. Auflage
%%
%%
%% Copyright (C) 2013 Herbert Voss
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%%
%% See
http://www.latex-project.org/lppl.txt for details.
%%
%%
%% ====
% Show page(s) 1
%%
%%
\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{317.53058pt}
%StartShownPreambleCommands
\directlua{tex.enableprimitives("",tex.extraprimitives())}
\def\Test{%
\ifnum\mathstyle=\textstyle \mbox{Text}%
\else\ifnum\mathstyle=\displaystyle \mbox{Display}%
\else\ifnum\mathstyle=\scriptstyle \mbox{\footnotesize Script}%
\else\ifnum\mathstyle=\scriptscriptstyle \mbox{\tiny ScriptScript}%
\else\ifnum\mathstyle=\crampeddisplaystyle \mbox{CDisplay}%
\else\ifnum\mathstyle=\crampedtextstyle \mbox{CText}%
\else\ifnum\mathstyle=\crampedscriptstyle \mbox{\footnotesize CScript}%
\else\ifnum\mathstyle=\crampedscriptscriptstyle \mbox{\tiny CScriptScript}%
\else \mbox{Nichts} \fi \fi \fi \fi \fi \fi \fi \fi}
%StopShownPreambleCommands
\begin{document}
$ L_{\Test}\Test L_{\Test_{\Test}} L^{{\Test}^{\Test}}$
\[ L_{\Test}\Test L_{\Test_{\Test}} L^{{\Test}^{\Test}} \]
\end{document}