Use a protected def for tilde which is safe in csnames

latex3 · Oct 27, 2023 · e98027d · e98027d
1 parent 460c6d1
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diff --git a/base/changes.txt b/base/changes.txt
@@ -6,6 +6,10 @@ completeness or accuracy and it contains some references to files that
 are not part of the distribution.
 ================================================================================
 
+2023-10-26 Joseph Wright  <Joseph.Wright@latex-project.org>
+	* ltspace.tex:
+	Use a protected definition for tilde which is safe in csnames
+
 2023-10-21 Yukai Chou  <muzimuzhi@gmai.com>
 	* ltfssbas.dtx, ltplain.dtx, ltspace.dtx:
 	Correct typos

diff --git a/base/doc/ltnews38.tex b/base/doc/ltnews38.tex
@@ -381,7 +381,14 @@ \subsection{Support for tabs in \cs{verb*} and \texttt{verbatim*}}
 %
 \githubissue{1085}
 
-
+\subsection{Aligning status of tilde with other active characters}
+
+Some time ago we revised the definition of active characters in \pdfTeX{} to
+allow the full range of UTF-8 codepoints to be used in for example labels,
+file names, etc. However, |~| was not changed at that point as it is active
+independent of the engine in use. This has how be corrected: the definition
+of |~| is an engine-protected one which gives the string version of the
+character if used inside a csname.
 
 \subsection{In the programming layer}
 

diff --git a/base/ltspace.dtx b/base/ltspace.dtx
@@ -32,7 +32,7 @@
 %<*driver>
 % \fi
 \ProvidesFile{ltspace.dtx}
-             [2023/10/21 v1.3q LaTeX Kernel (spacing)]
+             [2023/10/26 v1.3r LaTeX Kernel (spacing)]
 % \iffalse
 \documentclass{ltxdoc}
 \GetFileInfo{ltspace.dtx}
@@ -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 }}
@@ -1217,7 +1218,23 @@
 \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}

diff --git a/base/testfiles-lthooks/lthooks-rollback-args.tlg b/base/testfiles-lthooks/lthooks-rollback-args.tlg
@@ -293,6 +293,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/github-0479-often.luatex.tlg b/base/testfiles/github-0479-often.luatex.tlg
@@ -303,6 +303,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/github-0479-often.tlg b/base/testfiles/github-0479-often.tlg
@@ -293,6 +293,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/github-0479-often.xetex.tlg b/base/testfiles/github-0479-often.xetex.tlg
@@ -293,6 +293,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-003-often.luatex.tlg b/base/testfiles/tlb-latexrelease-rollback-003-often.luatex.tlg
@@ -281,6 +281,8 @@ Skipping: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] \addpenalty  on input line ....
 Skipping: [....-..-..] Support calc in \vspace  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Skipping: [....-..-..] Space after \@  on input line ....
@@ -1058,6 +1060,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Skipping: [....-..-..] Support calc in \vspace  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-003-often.tlg b/base/testfiles/tlb-latexrelease-rollback-003-often.tlg
@@ -275,6 +275,8 @@ Skipping: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] \addpenalty  on input line ....
 Skipping: [....-..-..] Support calc in \vspace  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Skipping: [....-..-..] Space after \@  on input line ....
@@ -1042,6 +1044,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Skipping: [....-..-..] Support calc in \vspace  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-003-often.xetex.tlg b/base/testfiles/tlb-latexrelease-rollback-003-often.xetex.tlg
@@ -275,6 +275,8 @@ Skipping: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] \addpenalty  on input line ....
 Skipping: [....-..-..] Support calc in \vspace  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Skipping: [....-..-..] Space after \@  on input line ....
@@ -1051,6 +1053,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Skipping: [....-..-..] Support calc in \vspace  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2020-10-01.luatex.tlg b/base/testfiles/tlb-latexrelease-rollback-2020-10-01.luatex.tlg
@@ -303,6 +303,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2020-10-01.tlg b/base/testfiles/tlb-latexrelease-rollback-2020-10-01.tlg
@@ -293,6 +293,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2020-10-01.xetex.tlg b/base/testfiles/tlb-latexrelease-rollback-2020-10-01.xetex.tlg
@@ -293,6 +293,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2021-06-01.luatex.tlg b/base/testfiles/tlb-latexrelease-rollback-2021-06-01.luatex.tlg
@@ -304,6 +304,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2021-06-01.tlg b/base/testfiles/tlb-latexrelease-rollback-2021-06-01.tlg
@@ -293,6 +293,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2021-06-01.xetex.tlg b/base/testfiles/tlb-latexrelease-rollback-2021-06-01.xetex.tlg
@@ -293,6 +293,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2021-11-15.luatex.tlg b/base/testfiles/tlb-latexrelease-rollback-2021-11-15.luatex.tlg
@@ -304,6 +304,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2021-11-15.tlg b/base/testfiles/tlb-latexrelease-rollback-2021-11-15.tlg
@@ -293,6 +293,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2021-11-15.xetex.tlg b/base/testfiles/tlb-latexrelease-rollback-2021-11-15.xetex.tlg
@@ -293,6 +293,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2022-06-01.luatex.tlg b/base/testfiles/tlb-latexrelease-rollback-2022-06-01.luatex.tlg
@@ -305,6 +305,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2022-06-01.tlg b/base/testfiles/tlb-latexrelease-rollback-2022-06-01.tlg
@@ -294,6 +294,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2022-06-01.xetex.tlg b/base/testfiles/tlb-latexrelease-rollback-2022-06-01.xetex.tlg
@@ -294,6 +294,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2022-11-01.luatex.tlg b/base/testfiles/tlb-latexrelease-rollback-2022-11-01.luatex.tlg
@@ -305,6 +305,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2022-11-01.tlg b/base/testfiles/tlb-latexrelease-rollback-2022-11-01.tlg
@@ -294,6 +294,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2022-11-01.xetex.tlg b/base/testfiles/tlb-latexrelease-rollback-2022-11-01.xetex.tlg
@@ -294,6 +294,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2023-06-01.luatex.tlg b/base/testfiles/tlb-latexrelease-rollback-2023-06-01.luatex.tlg
@@ -305,6 +305,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2023-06-01.tlg b/base/testfiles/tlb-latexrelease-rollback-2023-06-01.tlg
@@ -294,6 +294,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-latexrelease-rollback-2023-06-01.xetex.tlg b/base/testfiles/tlb-latexrelease-rollback-2023-06-01.xetex.tlg
@@ -294,6 +294,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
 Already applied: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-rollback-004-often.luatex.tlg b/base/testfiles/tlb-rollback-004-often.luatex.tlg
@@ -304,6 +304,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Skipping: [....-..-..] Support calc in \vspace  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-rollback-004-often.tlg b/base/testfiles/tlb-rollback-004-often.tlg
@@ -293,6 +293,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Skipping: [....-..-..] Support calc in \vspace  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....

diff --git a/base/testfiles/tlb-rollback-004-often.xetex.tlg b/base/testfiles/tlb-rollback-004-often.xetex.tlg
@@ -293,6 +293,8 @@ Applying: [....-..-..] \addpenalty  on input line ....
 Already applied: [....-..-..] \addpenalty  on input line ....
 Skipping: [....-..-..] Support calc in \vspace  on input line ....
 Applying: [....-..-..] Support calc in \vspace  on input line ....
+Skipping: [....-..-..] Protected tilde on input line ....
+Applying: [....-..-..] Protected tilde on input line ....
 Skipping: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Obeyed tabs on input line ....
 Applying: [....-..-..] Space after \@  on input line ....