\newcommand{\@usepackage}[1] {\def\pkg@arg{{\@nostyle\@callprim{\@eatspaces}{#1,}}}% \ifu\csname\pkg@arg{}@loaded\endcsname \@iffileexists{\pkg@arg.hva} {\def\csname\pkg@arg{}@loaded\endcsname{foo}% %Warning: loading \pkg@arg.hva may redefine \pgk@arg!!!! \input{\pkg@arg.hva}} {}% \fi} \newsavebox{\@pkg@opts} \newcommand{\usepackage}[2][!*!] {\ifthenelse{\equal{#1}{!*!}} {\sbox{\@pkg@opts}{}\begin{toimage}\usepackage{#2} \end{toimage}} {\sbox{\@pkg@opts}{#1}\begin{toimage}\usepackage[#1]{#2} \end{toimage}}% \@stopoutput\@stopimage\@funcall{\@iter}{\@usepackage,{#2}}\@restartimage\@restartoutput } \newsavebox{\@pkg@me} \newcommand{\ProvidesPackage}[1]{\sbox{\@pkg@me}{\@getprint{#1}}} \newcommand{\EndPackage}{\sbox{\@pkg@me}{}} \newcommand{\@pkg@opt@name}[1] {@pkg\usebox{\@pkg@me}@@#1} \newcommand{\DeclareOption}[2] {\newcommand{\csname\@pkg@opt@name{#1}\endcsname}{#2}} \newcommand{\@process@option}[1]% {\def\pkg@opt{{\@nostyle\@callprim{\@eatspaces}{#1,}}}% \ifu\csname\@pkg@opt@name{\pkg@opt}\endcsname \warning{Ignoring option: '#1'}\else \csname\@pkg@opt@name{\pkg@opt}\endcsname\fi}% \newcommand{\ProcessOptions*} {\@callprim{\@iter} {\string\@process@option,{\char123\usebox{\@pkg@opts}\char125}}}