The microtype package

IMPLEMENTATION: Configuration 99\MT@DeclareSetAndUseIt\MT@curr@set@name\MT@declare@sets\MT@define@set@key@\MT@get@highlevel2862 \MT@exp@one@n\MT@declare@sets2863 {\csname MT@rbba@\@tempa\endcsname}{#2}{#3}%2864 }%2865 }%2866 }}%2867 }%2868 }2869 \newcommand\MT@DeclareSetAndUseIt[3][]{%2870 \MT@DeclareSet[#1]{#2}{#3}%2871 \UseMicrotypeSet[#1]{#2}%2872 }We need to remember the name of the set currently being declared.2873 \let\MT@curr@set@name\@emptyDefine the current set name and parse the keys.2874 \def\MT@declare@sets#1#2#3{%2875 \KV@@sp@def\MT@curr@set@name{#2}%2876 \MT@ifdefined@n@T{MT@#1@set@@\MT@curr@set@name}{%2877 \MT@warning{Redefining \@nameuse{MT@abbr@#1} set `\MT@curr@set@name’}%2878 \MT@glet@nc{MT@#1list@size@\MT@curr@set@name}\@empty2879 }%2880 \MT@glet@nc{MT@#1@set@@\MT@curr@set@name}\@empty2881 \MT@dinfo{1}{declaring \@nameuse{MT@abbr@#1} set `\MT@curr@set@name’}%2882 \setkeys{MT@#1@set}{#3}%2883 }〈#1〉 = font axis, 〈#2〉 = feature.2884 \def\MT@define@set@key@#1#2{%2885 \define@key{MT@#2@set}{#1}[]{%2886 \MT@glet@nc{MT@#2list@#1@\MT@curr@set@name}\@empty2887 \MT@map@clist@n{##1}{%2888 \KV@@sp@def\MT@val{####1}%2889 \MT@get@highlevel{#1}%We do not add the expanded value to the list . . .2890 \MT@exp@two@n\g@addto@macro2891 {\csname MT@#2list@#1@\MT@curr@set@name\expandafter\endcsname}%2892 {\MT@val,}%2893 }%. . . but keep in mind that the list has to be expanded at the end of the preamble.2894 \expandafter\g@addto@macro\expandafter\MT@font@sets2895 \csname MT@#2list@#1@\MT@curr@set@name\endcsname2896 \MT@dinfo@nl{1}{-- #1: \@nameuse{MT@#2list@#1@\MT@curr@set@name}}%2897 }%2898 }Saying, for instance, ‘family=rm*’ or ‘shape=bf*’ will expand to \rmdefault resp.\bfdefault.2899 \def\MT@get@highlevel#1{%2900 \expandafter\MT@test@ast\MT@val*\@nil\relax{%And ‘family = *’ will become \familydefault.2901 \MT@ifempty\@tempa{\def\@tempa{#1}}\relax2902 \edef\MT@val{\expandafter\noexpand\csname \@tempa default\endcsname}%In contrast to earlier version, these values will not be expanded immediately but atthe end of the preamble.2903 }%2904 }