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-rw-r--r--macros/latex-dev/base/ifthen.dtx29
1 files changed, 26 insertions, 3 deletions
diff --git a/macros/latex-dev/base/ifthen.dtx b/macros/latex-dev/base/ifthen.dtx
index ef7d8ab398..0bbe361211 100644
--- a/macros/latex-dev/base/ifthen.dtx
+++ b/macros/latex-dev/base/ifthen.dtx
@@ -30,7 +30,7 @@
%%
%% File `ifthen.dtx'.
%% Copyright (C) 1991 by Leslie Lamport
-%% Copyright (C) 1994-2001 LaTeX project, David Carlisle
+%% Copyright (C) 1994-2024 LaTeX project, David Carlisle
%% all rights reserved.
%%
%
@@ -42,7 +42,7 @@
%<driver>\ProvidesFile{ifthen.drv}
% \fi
% \ProvidesFile{ifthen.dtx}
- [2022/04/13 v1.1d Standard LaTeX ifthen package (DPC)]
+ [2024/03/16 v1.1e Standard LaTeX ifthen package (DPC)]
%
% \iffalse
%<*driver>
@@ -273,15 +273,35 @@
\ifx##1\relax\z@\else\expandafter##2##1\fi}}}
% \end{macrocode}
% \begin{macrocode}
+\begingroup
+\lccode`\~`\> %
+\catcode`\+\active
+\lccode`\+`\< %
+\catcode`\!\active
+\lccode`\!`\= %
+\lowercase{\endgroup
+% \end{macrocode}
+% \begin{macrocode}
+\def\TE@repl@active{%
+ \TE@repl~>%
+ \TE@repl+<%
+ \TE@repl!=%
+}
+% \end{macrocode}
+% \begin{macrocode}
\long\def\ifthenelse#1{%
% \end{macrocode}
% \changes{v1.0h}{1994/05/14}{Use \cs{TE@repl}}
+% \changes{v1.1e}{2024/03/16}{replace active \cs{ifnum} syntax}
% \begin{macrocode}
\toks@{#1}%
\TE@repl\or\TE@or
\TE@repl\and\TE@and
\TE@repl\not\TE@neg
% \end{macrocode}
+% \begin{macrocode}
+ \TE@repl@active
+% \end{macrocode}
%
% \changes{v1.1c}{2001/05/25}{Added \cs{AND}, \cs{OR} and \cs{NOT} as
% boolean operators as alternative to the lower case versions
@@ -353,7 +373,10 @@
\expandafter\@firstoftwo
\else
\expandafter\@secondoftwo
- \fi}
+ \fi}%
+% \end{macrocode}
+% \begin{macrocode}
+}
% \end{macrocode}
% \end{macro}
%