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-rw-r--r--macros/latex/contrib/textcase/textcase.dtx35
1 files changed, 32 insertions, 3 deletions
diff --git a/macros/latex/contrib/textcase/textcase.dtx b/macros/latex/contrib/textcase/textcase.dtx
index 35d8c1f46a..3fd04e0af9 100644
--- a/macros/latex/contrib/textcase/textcase.dtx
+++ b/macros/latex/contrib/textcase/textcase.dtx
@@ -1,6 +1,6 @@
% \iffalse
%% Source File: textcase.dtx
-%% Copyright 1997 1998 2019 David Carlisle
+%% Copyright 1997 1998 2019 2022 David Carlisle
%%
%% This file may be distributed under the terms of the LPPL.
%% See 00readme.txt for details.
@@ -13,7 +13,7 @@
%<driver> \ProvidesFile{textcase.drv}
% \fi
% \ProvidesFile{textcase.dtx}
- [2019/09/14 v1.00 Text only upper/lower case changing (DPC)]
+ [2022/06/12 v1.02 Text only upper/lower case changing (DPC)]
%
% \iffalse
%<*driver>
@@ -58,6 +58,18 @@
% \maketitle
%
% \section{Introduction}\label{intro}
+%
+% \subsection*{This package is obsolete with the June 2022 \LaTeX\ release.}
+% \begin{sloppypar}
+% With new formats |\MakeUppercase| supports the extensions provided
+% here, with improved support for UTF-8 input. So now the package just defines
+% |\MakeTextUppercase| and |\MakeTextLowercase| as aliases for the
+% standard |\MakeUppercase| and |\MakeLowercase|.
+% \end{sloppypar}
+%
+%
+% \subsection*{Old Introduction}
+%
% |\MakeTextUppercase| and |\MakeTextLowercase| are versions of the
% standard |\MakeUppercase| and |\MakeLowercase| that do not change
% the case of any math sections in their arguments.
@@ -216,6 +228,18 @@
%<*package>
% \end{macrocode}
%
+% In current \LaTeX\ just define legacy names.
+% \begin{macrocode}
+\ifx\@expl@text@uppercase@@n\@undefined\else
+ \DeclareOption{overload}{}
+ \ProcessOptions
+ \PackageInfo{textcase}{Defining Legacy names}
+ \let\MakeTextUppercase\MakeUppercase
+ \let\MakeTextLowercase\MakeLowercase
+ \expandafter\endinput
+\fi
+% \end{macrocode}
+%
% \begin{macro}{\@uclcnotmath}
% This is the main macro of this package. It is basically
% a copy of |\MakeTextUppercase| and |\MakeTextLowercase|
@@ -246,10 +270,15 @@
\def\({$}\let\)\(%
% \end{macrocode}
%
-% \changes{v1.0}{2019/09/14}
+% \changes{v1.00}{2019/09/14}
% {UTF-8 support for 2019 LaTeX format}
% Allow UTF-8 characters to expand in the |\protected@edef| so that
% they become for example |\IeC{\'{e}}| and uppercase correctly.
+% \changes{v1.01}{2022/02/14}
+% {UTF-8 support for 2022 LaTeX format (unreleased)}
+% \changes{v1.02}{2022/06/12}
+% {Obsolete this package in newer formats}
+% Allow UTF-8 characters are e-\TeX\ |\protected| in newer \LaTeX\ formats.
%
% \begin{macrocode}
\let\UTF@two@octets@noexpand\@empty