1 files changed, 51 insertions, 0 deletions
diff --git a/Master/texmf-dist/doc/latex/latex-referenz/DEoptions.sty b/Master/texmf-dist/doc/latex/latex-referenz/DEoptions.sty
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@@ -0,0 +1,51 @@
+% $Id: DEoptions.sty 574 2011-09-05 08:17:17Z herbert $
+% Copyright 2011 by Herbert Voss
+%
+% This file may be distributed and/or modified
+%
+% 1. under the LaTeX Project Public License and/or
+% 2. under the GNU Public License.
+%
+% See the file doc/licenses/LICENSE for more details.
+
+\RequirePackage{keyval}[1997/11/10]
+
+\def\ProcessOptionsExa{%
+  \let\@tempa\@empty
+  \ifx\@currext\@clsextension%
+  \else
+  \@for\CurrentOption:=\@classoptionslist\do{%
+    \@ifundefined{KV@\@currname @\CurrentOption}%
+    {}{\edef\@tempa{\@tempa,\CurrentOption,}}}%
+  \fi
+  \edef\@tempa{%
+    \noexpand\setkeys{\@currname}{\@tempa\@ptionlist{\@currname.\@currext}}}%
+  \let\exa@origkverr\KV@err%
+  \ifx\@currext\@clsextension\let\KV@errx=\@gobble\fi% never mind
+  \@tempa%
+  \let\KV@err\exa@origkverr%
+  \AtEndOfPackage{\let\@unprocessedoptions\relax}}
+
+\def\ExecuteOptionsExa#1{\setkeys{\@currname}{#1}}
+\def\DeclareOptionExa#1{\@ifnextchar[{\exa@dokv{#1}}{\exa@dokv{#1}[]}}
+\long\def\exa@dokv#1[#2]#3{\define@key{\@currname}{#1}[{#2}]{#3}}
+
+\def\exa@filterclassoptions{%
+  \def\exa@filteredclassoptionslist{}
+  \@for\CurrentOption:=\@classoptionslist\do{%
+    \ifx\CurrentOption\@empty\else
+    \@expandtwoargs\in@{=}{\CurrentOption}%
+    \ifin@
+    \else
+    \edef\exa@filteredclassoptionslist{%
+      \exa@filteredclassoptionslist,\CurrentOption}
+    \fi
+    \fi
+  }%
+  \let\@classoptionslist=\exa@filteredclassoptionslist%
+}
+
+\newcommand\defexaoption{\define@key{exa@option}}
+\newcommand\setexaoption{\setkeys{exa@option}}
+
+\endinput
+\ No newline at end of file