\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{CharisSIL}
    [2022/09/15 (Bob Tennent)  Style file for CharisSIL fonts.]

\RequirePackage{ifxetex,ifluatex,xkeyval,textcomp}

\newif\ifcharssil@otf 
\ifxetex
  \charssil@otftrue
\else\ifluatex
  \charssil@otftrue
\else  % [pdf]LaTeX
  \charssil@otffalse
\fi\fi


\newcommand*{\CharisSIL@scale}{1}
\DeclareOptionX{scaled}{\renewcommand*{\CharisSIL@scale}{#1}}
\DeclareOptionX{scale}{\renewcommand*{\CharisSIL@scale}{#1}}
\DeclareOptionX{type1}{\charssil@otffalse}

\ProcessOptionsX\relax

\ifcharssil@otf
\else
  \def\bfseries@rm{b}
  \def\mdseries@rm{m}
\fi

\ifcharssil@otf
  \RequirePackage{fontspec}
\else
  \RequirePackage{fontenc,fontaxes,mweights}
\fi


\ifcharssil@otf
  \defaultfontfeatures{
        Ligatures = TeX ,
        Scale     = \CharisSIL@scale ,
        Extension = .ttf }
  \setmainfont
      [ UprightFont    = *-Regular,
        ItalicFont     = *-Italic,
        BoldFont    = *-Bold,
        BoldItalicFont    = *-BoldItalic ,
      ]
      {CharisSIL}
  \newfontfamily\CharisSIL
      [ UprightFont    = *-Regular,
        ItalicFont     = *-Italic,
        BoldFont    = *-Bold,
        BoldItalicFont    = *-BoldItalic ,
      ]
      {CharisSIL}
\else % type1
  \def\charssil@family{charssil-TLF}
  \renewcommand*\rmdefault{\charssil@family}
  \edef\seriesdefault{\mdseries@rm}

\fi

\ifcharssil@otf
  \defaultfontfeatures{}
\fi

\endinput