WIP

base/ltfssaxes.dtx

@@ -28,7 +28,7 @@
 % \fi
 % \iffalse
 %%% From File: ltfssaxes.dtx
-%% Copyright (C) 2019-2020 Frank Mittelbach
+%% Copyright (C) 2019-2020 Frank Mittelbach (initial implementation)
 %
 %<*driver>
 % \fi
@@ -59,8 +59,8 @@
 % \maketitle
 %
 % This file contains the implementation for handling extra axes
-% splitting the series and the values into sub-categories.  selection
-% commands. See other parts of the \LaTeX\ distribution, or \emph{The
+% by splitting the series and the shape values into sub-categories.
+% See other parts of the \LaTeX\ distribution, or \emph{The
 % \LaTeX\ Companion} for higher level documentation of the
 % \LaTeX\ Font Selection Scheme.
 %
@@ -191,13 +191,14 @@
 %       automatically gets reduced to \texttt{b}, or \texttt{mc} (medium
 %       weight condensed) which becomes \texttt{c} as a result.
 %
-%       There is one exception: we do have rules for a request to
+%       There is one exception: We do have rules for a request to
 %       \texttt{bx}, because the Computer Modern fonts (or related
-%       families like Latin modern) need \texttt{bx} as their
-%       \cs{seriesdefault} because they don't have a \texttt{b} series
-%       or only for a restricted set of font faces in bold. Many other
-%       font families have only \texttt{b} but no \texttt{bx}. We
-%       therefore have explicit rules that fall back from one to the other.
+%       families like Latin Modern) need \texttt{bx} as their bold series
+%       default (\cs{bfdefault})
+%       because they don't have a \texttt{b} series or only for a
+%       restricted set of font faces. Many other font families have only
+%       \texttt{b} but no \texttt{bx}. We therefore have explicit rules
+%       that fall back from one to the other.
 %    \end{itemize}
 %
 % \item
@@ -1068,11 +1069,11 @@
 \DeclareFontSeriesChangeRule {sbc}{el}  {elc}  {}
 \DeclareFontSeriesChangeRule {sbc}{l}   {lc}   {}
 \DeclareFontSeriesChangeRule {sbc}{sl}  {slc}  {}
-\DeclareFontSeriesChangeRule {sbc}{sb}  {sbc}  {bc}
+\DeclareFontSeriesChangeRule {sbc}{sb}  {sbc}  {}
 \DeclareFontSeriesChangeRule {sbc}{b}   {bc}   {}
 \DeclareFontSeriesChangeRule {sbc}{eb}  {ebc}  {bc}
 \DeclareFontSeriesChangeRule {sbc}{ub}  {ubc}  {bc}
-\DeclareFontSeriesChangeRule {sbc}{uc}  {sbuc} {}
+\DeclareFontSeriesChangeRule {sbc}{uc}  {sbuc} {sbc}
 \DeclareFontSeriesChangeRule {sbc}{ec}  {sbec} {}
 \DeclareFontSeriesChangeRule {sbc}{c}   {sbc}  {}
 \DeclareFontSeriesChangeRule {sbc}{sc}  {sbsc} {}
@@ -4123,9 +4124,9 @@
 \DeclareFontShapeChangeRule {ssc}{ulc} {n}      {}
 %    \end{macrocode}
 %    We implement the same logic as for \texttt{sc}, see above. The
-%    \texttt{ssc} shape doesn't need to care for 30 years of history,
-%    but it would be surprising is \cs{sscshape}\cs{upshape} would
-%    work differently to \cs{scshape}\cs{upshape}.
+%    \texttt{ssc} shape doesn't have to care about 30 years of history,
+%    but it would be surprising if \cs{sscshape}\cs{upshape} did not
+%    work like \cs{scshape}\cs{upshape}.
 %    \begin{macrocode}
 % \DeclareFontShapeChangeRule {ssc}{up} {ssc}     {}
 \DeclareFontShapeChangeRule {ssc}{up}  {n}      {}