\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{step}
\RequirePackage{textcomp}
\IfFileExists{mweights.sty}{\RequirePackage{mweights}}{}
\IfFileExists{fontaxes.sty}{
    \RequirePackage{fontaxes}
    \fa@naming@exception{figures}{{superior}{proportional}}{Sup}
    \fa@naming@exception{figures}{{superior}{tabular}}{Sup}
    \def\sufigures{\@nomath\sufigures
        \fontfigurestyle{superior}\selectfont}
    \DeclareTextFontCommand{\textsu}{\sufigures}
    \let\textsuperior\textsu

    \fa@naming@exception{figures}{{inferior}{proportional}}{Inf}
    \fa@naming@exception{figures}{{inferior}{tabular}}{Inf}
    \def\infigures{\@nomath\infigures
        \fontfigurestyle{inferior}\selectfont}
    \DeclareTextFontCommand{\textin}{\infigures}
    \let\textinferior\textin

}{}

\IfFileExists{xkeyval.sty}{
    \newcommand*{\STEP@scale}{1}
    \RequirePackage{xkeyval}
    \DeclareOptionX{scale}{\renewcommand*{\STEP@scale}{##1}}
    \DeclareOptionX{scaled}{\renewcommand*{\STEP@scale}{##1}}
}{
    \let\DeclareOptionX\DeclareOption
    \let\ExecuteOptionsX\ExecuteOptions
    \let\ProcessOptionsX\ProcessOptions
}

\DeclareOptionX{lining}{\edef\STEP@figurestyle{LF}}
\DeclareOptionX{oldstyle}{\edef\STEP@figurestyle{OsF}}
\DeclareOptionX{tabular}{\edef\STEP@figurealign{T}}
\DeclareOptionX{mainfont}{
    \renewcommand{\familydefault}{\rmdefault}
}
\DeclareOptionX{bold}{\edef\bfseries@rm{bold}}
\DeclareOptionX{regular}{\edef\mdseries@rm{regular}}
\ExecuteOptionsX{lining,tabular,bold,regular}
\ProcessOptionsX\relax

\DeclareTextFontCommand{\lining}{\fontfamily{STEP-\STEP@figurealign LF}\selectfont}
\DeclareTextFontCommand{\oldstyle}{\fontfamily{STEP-\STEP@figurealign OsF}\selectfont}

\renewcommand*
    {\rmdefault}
    {STEP-\STEP@figurealign\STEP@figurestyle}
\let\oldstylenums\oldstyle
\endinput
