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-rw-r--r--macros/latex-dev/base/ltfssdcl.dtx65
1 files changed, 54 insertions, 11 deletions
diff --git a/macros/latex-dev/base/ltfssdcl.dtx b/macros/latex-dev/base/ltfssdcl.dtx
index 951c6de2e5..291cd1368f 100644
--- a/macros/latex-dev/base/ltfssdcl.dtx
+++ b/macros/latex-dev/base/ltfssdcl.dtx
@@ -36,7 +36,7 @@
%
%
\ProvidesFile{ltfssdcl.dtx}
- [2020/01/20 v3.0t LaTeX Kernel (NFSS Declarative Interface)]
+ [2020/03/19 v3.0v LaTeX Kernel (NFSS Declarative Interface)]
% \iffalse
\documentclass{ltxdoc}
\begin{document}
@@ -465,7 +465,7 @@
% \changes{v3.0q}{2015/03/18}{Introduce \cs{e@mathgroup@top}}
% \begin{macrocode}
%</2ekernel>
-%<latexrelease>\IncludeInRelease{2015/01/01}
+%<latexrelease>\IncludeInRelease{2020/10/01}
%<latexrelease> {\document@select@group}{\document@select@group}%
%<*2ekernel|latexrelease>
\def\document@select@group#1#2#3#4{%
@@ -491,13 +491,54 @@
\@eha
\fi
\else \expandafter\non@alpherr\fi
- #1{#4}%
+% \end{macrocode}
+% If the legacy interface is used, e.g., \verb=$\sf -1$= the math
+% alphabet \verb=#1= does not take an argument so we better do not
+% surround \verb=#4= with braces, because then we get
+% \verb={\relax}= into the formula and introduce an extra Ord
+% atom. The two different cases can be distinguished by looking at
+% the current value of \cs{math@bgroup}.
+% \changes{v3.0u}{2020/03/19}{fix for (gnats/3357)}
+% \begin{macrocode}
+ \expandafter#1\ifx\math@bgroup\bgroup{#4}\else#4\fi
}%
}
%</2ekernel|latexrelease>
%<latexrelease>\EndIncludeInRelease
+%<latexrelease>\IncludeInRelease{2015/01/01}
+%<latexrelease> {\document@select@group}{\document@select@group}%
+%<latexrelease>
+%<latexrelease>\def\document@select@group#1#2#3#4{%
+%<latexrelease> \ifx\math@bgroup\bgroup\else\relax\expandafter\@firstofone\fi
+%<latexrelease> {%
+%<latexrelease> \ifmmode
+%<latexrelease> \ifnum\csname c@mv@\math@version\endcsname<\e@mathgroup@top
+%<latexrelease> \begingroup
+%<latexrelease> \escapechar\m@ne
+%<latexrelease> \getanddefine@fonts{\csname c@mv@\math@version\endcsname}#3%
+%<latexrelease> \globaldefs\@ne \math@fonts
+%<latexrelease> \endgroup
+%<latexrelease> \expandafter\extract@alph@from@version
+%<latexrelease> \csname mv@\math@version\expandafter\endcsname
+%<latexrelease> \expandafter{\number\csname
+%<latexrelease> c@mv@\math@version\endcsname}%
+%<latexrelease> #1%
+%<latexrelease> \global\advance\csname c@mv@\math@version\endcsname\@ne
+%<latexrelease> \else
+%<latexrelease> \let#1\relax
+%<latexrelease> \@latex@error{Too many math alphabets used
+%<latexrelease> in version \math@version}%
+%<latexrelease> \@eha
+%<latexrelease> \fi
+%<latexrelease> \else \expandafter\non@alpherr\fi
+%<latexrelease> #1{#4}%
+%<latexrelease> }%
+%<latexrelease>}
+%<latexrelease>\EndIncludeInRelease
+%<latexrelease>
%<latexrelease>\IncludeInRelease{0000/00/00}
%<latexrelease> {\document@select@group}{\document@select@group}%
+%<latexrelease>
%<latexrelease>\def\document@select@group#1#2#3#4{%
%<latexrelease> \ifx\math@bgroup\bgroup\else\relax\expandafter\@firstofone\fi
%<latexrelease> {%
@@ -582,17 +623,19 @@
% \begin{macrocode}
\let\select@group\document@select@group
% \end{macrocode}
-% Install the default font attributes they are currently pointing
-% to error font shape.
+% Install the default font attributes as they are currently pointing
+% to error font face. We can speed up the process by just using
+% \cs{edef}, thereby avoiding all kind of extra processing.
% Don't use |\reset@font| since that would trigger |\selectfont|.
+% \changes{v3.0v}{2020/04/13}{Small update for speed.}
% \begin{macrocode}
- \fontencoding{\encodingdefault}%
- \fontfamily{\familydefault}%
- \fontseries{\seriesdefault}%
- \fontshape{\shapedefault}%
+ \fontencoding\encodingdefault
+ \edef\f@family{\familydefault}%
+ \edef\f@series{\seriesdefault}%
+ \edef\f@shape{\shapedefault}%
% \end{macrocode}
-% kill all macros not longer needed.
-% we need to add many more!!!!!!
+% Drop stuff not longer needed.
+% We need to add many more!!!!!!
% \begin{macrocode}
\everyjob{}%
}