The microtype package

IMPLEMENTATION: Preliminaries 3714.1.2 Requirements\MT@plain\MT@requires@latex\MT@maybe@etex\MT@clear@optionsThe letterspace package works with:0: miniltx1: eplain2: L A TEXFor plain usage, we have to copy some commands from latex.ltx.125 126 \def\MT@plain{2}127 \ifx\documentclass\@undefined128 \def\MT@plain{1}129 \def\hmode@bgroup{\leavevmode\bgroup}130 \def\nfss@text#1{{\mbox{#1}}}131 \let\@typeset@protect\relax132 \ifx\eplain\@undefined133 \def\MT@plain{0}134 \def\PackageWarning#1#2{%135 \begingroup136 \newlinechar=10 %137 \def\MessageBreak{^^J(#1)\@spaces\@spaces\@spaces\@spaces}%138 \immediate\write16{^^JPackage #1 Warning: #2\on@line.^^J}%139 \endgroup140 }141 \def\on@line{ on input line \the\inputlineno}142 \def\@spaces{\space\space\space\space}143 \fi144 \fiBetter use groups than plain ifs.145 \def\MT@requires@latex#1{%146 \ifnum\MT@plain