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authorNorbert Preining <norbert@preining.info>2023-11-02 03:04:13 +0000
committerNorbert Preining <norbert@preining.info>2023-11-02 03:04:13 +0000
commit2da66dea964ffa47d24f26081f2942a6e1ef1121 (patch)
tree74283568549892324b317485ab0a26dc23917afb /macros/latex/base/ltspace.dtx
parenta9d0083bcc66de9ea863ed14cf8cde44e88e4355 (diff)
CTAN sync 202311020304
Diffstat (limited to 'macros/latex/base/ltspace.dtx')
-rw-r--r--macros/latex/base/ltspace.dtx44
1 files changed, 40 insertions, 4 deletions
diff --git a/macros/latex/base/ltspace.dtx b/macros/latex/base/ltspace.dtx
index a77314b1bd..03b3445047 100644
--- a/macros/latex/base/ltspace.dtx
+++ b/macros/latex/base/ltspace.dtx
@@ -32,7 +32,7 @@
%<*driver>
% \fi
\ProvidesFile{ltspace.dtx}
- [2023/05/26 v1.3p LaTeX Kernel (spacing)]
+ [2023/10/26 v1.3r LaTeX Kernel (spacing)]
% \iffalse
\documentclass{ltxdoc}
\GetFileInfo{ltspace.dtx}
@@ -742,7 +742,7 @@
% true (as |\@esphack| used to do previously).
% This is currently used only for floats and similar environments.
% \changes{v1.2s}{1996/08/02}{Remove \cs{global} before \cs{@ignore...}}
-% \changes{v1.3d}{2015/01/11}{Allow hyphenation (Donald Arseneau pr/3498) (latexrelease)}w
+% \changes{v1.3d}{2015/01/11}{Allow hyphenation (Donald Arseneau pr/3498) (latexrelease)}
% \begin{macrocode}
%</2ekernel>
%<latexrelease>\IncludeInRelease{2015/01/01}%
@@ -1195,6 +1195,7 @@
%
% \begin{macro}{\nobreakspace}
% \changes{v1.2k}{1995/12/04}{(Macro added}
+% \changes{v1.3r}{2023/10/26}{Protected definition for tilde}
% \begin{macro}{\@xobeysp}
% \changes{v1.2t}{1996/09/28}{Moved from ltmiscen.dtx and redefined to
% use \cs{nobreakspace }}
@@ -1213,19 +1214,54 @@
% We need to keep \cs{@xobeysp} as it is widely used; so here it is
% let to the non-robust command \cs{nobreakspace }.
%
+% The fragile version of |~| needs a brace group after \cs{nobreakspace}
+% to prevent loss of spaces if it occurs in an expansion context. That's
+% not an issue with the updated \cs{protected} definition, so we keep the
+% code shorter and avoid that.
% \begin{macrocode}
\DeclareRobustCommand{\nobreakspace}{%
\leavevmode\nobreak\ }
\catcode `\~=13
-\def~{\nobreakspace{}}
+%</2ekernel>
+%<latexrelease>\IncludeInRelease{2023/11/01}%
+%<latexrelease> {\tilde}{Protected tilde}%
+%<*2ekernel|latexrelease>
+\protected\edef~{%
+ \noexpand\ifincsname\noexpand\expandafter\string~%
+ \noexpand\else
+ \noexpand\expandafter\noexpand\nobreakspace
+ \noexpand\fi
+}
+%</2ekernel|latexrelease>
+%<latexrelease>\EndIncludeInRelease
+%<latexrelease>\IncludeInRelease{0000/00/00}%
+%<latexrelease> {\tilde}{Protected tilde}%
+%<latexrelease>\def~{\nobreakspace{}}
+%<latexrelease>\EndIncludeInRelease
+%<*2ekernel>
\expandafter\let\expandafter\@xobeysp\csname nobreakspace \endcsname
% \end{macrocode}
% \end{macro}
% \end{macro}
%
+% \begin{macro}{\@xobeytab}
+% \changes{v1.3q}{2023/06/14}{Macro added}
+% Equivalent to the space case with the default settings.
% \begin{macrocode}
+%</2ekernel>
+%<latexrelease>\IncludeInRelease{2023/11/01}%
+%<latexrelease> {\@xobeytab}{Obeyed tabs}%
+%<*2ekernel|latexrelease>
+\let\@xobeytab\@xobeysp
+%</2ekernel|latexrelease>
+%<latexrelease>\EndIncludeInRelease
+%<latexrelease>\IncludeInRelease{0000/00/00}%
+%<latexrelease> {\@xobeytab}{Obeyed tabs}%
+%<latexrelease>\let\@xobeytab\@undefined
+%<latexrelease>\EndIncludeInRelease
+%<*2ekernel>
% \end{macrocode}
-%
+% \end{macro}
%
%
% \begin{macro}{\@}