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\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{HindMadurai}
    [2021/01/09 (Carl-Clemens Ebinger & autoinst)  Style file for HindMadurai fonts.]

\RequirePackage{xkeyval}
\newcommand*{\HindMadurai@scale}{1}
\DeclareOptionX{scale}{\renewcommand*{\HindMadurai@scale}{#1}}
\DeclareOptionX{scaled}{\renewcommand*{\HindMadurai@scale}{#1}}

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

\RequirePackage{fontenc,textcomp}
\RequirePackage{ifthen}
\RequirePackage{mweights}

\IfFileExists{fontaxes.sty}{
    \RequirePackage{fontaxes}
}{}

%   Here we implement the scale=MatchLowercase option.
%   If this is given, we must compute the correct value of
%   the "\HindMadurai@scale" parameter before loading the .fd files;
%   but to determine that value we of course need the font's x-height.
%   To avoid triggering the loading of .fd files,
%   we use plain TeX's \font primitive to load the testfont.
%   We then compute the ratio of the current x-height to our font's x-height;
%   this is the "\HindMadurai@scale" we will pass to the .fd files.
\ifthenelse{\equal{\HindMadurai@scale}{MatchLowercase}}
    {   \newlength{\HindMadurai@currentx}
        \settoheight{\HindMadurai@currentx}{x}
        \newlength{\HindMadurai@xheight}
        \settoheight{\HindMadurai@xheight}
            {{\font\testfont=HindMadurai-Regular-tlf-ot1 at \f@size pt\testfont x}}
        \renewcommand*{\HindMadurai@scale}
            {\strip@pt\dimexpr\number\numexpr\number\dimexpr\HindMadurai@currentx\relax*65536/\number\dimexpr\HindMadurai@xheight\relax\relax sp\relax}}
    {}

\renewcommand*
    {\rmdefault}
    {HindMadurai-\HindMadurai@figurealign\HindMadurai@figurestyle}

\endinput