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authorNorbert Preining <norbert@preining.info>2023-05-26 03:02:08 +0000
committerNorbert Preining <norbert@preining.info>2023-05-26 03:02:08 +0000
commit8057c647880f05a2624b3d04ab0eb38d5cbf8c18 (patch)
tree2df10dbc859977e89de9b6797303c039106aca37 /macros/latex-dev/base/ltxref.dtx
parented4c98e3a1f3e2160094ac1b05cfc304832cce4d (diff)
CTAN sync 202305260302
Diffstat (limited to 'macros/latex-dev/base/ltxref.dtx')
-rw-r--r--macros/latex-dev/base/ltxref.dtx93
1 files changed, 82 insertions, 11 deletions
diff --git a/macros/latex-dev/base/ltxref.dtx b/macros/latex-dev/base/ltxref.dtx
index dcfebf0e7e..0f842e4312 100644
--- a/macros/latex-dev/base/ltxref.dtx
+++ b/macros/latex-dev/base/ltxref.dtx
@@ -33,7 +33,7 @@
%<*driver>
% \fi
\ProvidesFile{ltxref.dtx}
- [2022/04/12 v1.1p LaTeX Kernel (Cross Referencing)]
+ [2023/05/16 v1.1q LaTeX Kernel (Cross Referencing)]
% \iffalse
\documentclass{ltxdoc}
\GetFileInfo{ltxref.dtx}
@@ -93,6 +93,15 @@
% to align with the use of \pkg{hyperref}. Without \pkg{hyperref} (or some
% other package using the starred form) the star is simply ignored.
%
+% Note: starting with 2023-06-01 |\label| stores also the current value
+% of |\@currentlabelname| which should typically contain a (sanitized) title.
+% (A reference command |\nameref| is provided by the \pkg{nameref} package.)
+% |\label| also stores |\@currentHref| which if set should refer to a target name
+% for links. This value is set and used by \pkg{hyperref}. Unlike the other values
+% |\@currentHref| should be set globally. A fifth value |\@kernel@reserved@label@data|
+% is reserved for the kernel to allow future extensions of the cross-reference
+% system.
+%
%
% \MaybeStop{}
%
@@ -108,7 +117,8 @@
% incremented by the command \refstepcounter{CNT} , which sets
% \@currentlabel == {CNT}{eval(\p@cnt\theCNT)}. The command
% \label{FOO} then writes the following on file \@auxout :
-% \newlabel{FOO}{{eval(\@currentlabel)}{eval(\thepage)}}
+% \newlabel{FOO}{{eval(\@currentlabel)}{eval(\thepage)}%
+% {eval(\@currentlabelname)}{eval(\@currentHref)}{eval(\@kernel@reserved@label@data)}}
%
% \ref{FOO} ==
% BEGIN
@@ -228,6 +238,10 @@
%
% RmS 93/09/08: Added setting of refundefined switch.
% \begin{macrocode}
+%</2ekernel>
+%<*2ekernel|latexrelease>
+%<latexrelease>\IncludeInRelease{2023/06/01}%
+%<latexrelease> {\@kernel@sref}{store five arguments}%
\def\@setref#1#2#3{%
\ifx#1\relax
\protect\G@refundefinedtrue
@@ -235,19 +249,53 @@
\@latex@warning{Reference `#3' on page \thepage \space
undefined}%
\else
- \expandafter#2#1\null
+ \expandafter#2#1\@empty\@empty\@empty\null
\fi}
% \end{macrocode}
% \begin{macrocode}
-%</2ekernel>
-%<*2ekernel|latexrelease>
+\long\def\@firstoffive#1#2#3#4#5{#1}
+\long\def\@secondoffive#1#2#3#4#5{#2}
+\def\@kernel@sref#1{\expandafter\@setref\csname r@#1\endcsname\@firstoffive{#1}}
+\def\@kernel@spageref#1{\expandafter\@setref\csname r@#1\endcsname
+ \@secondoffive{#1}}
+%<latexrelease>\EndIncludeInRelease
+%<latexrelease>\IncludeInRelease{2022/06/01}%
+%<latexrelease> {\@kernel@sref}{store five arguments}%
+%<latexrelease>\def\@setref#1#2#3{%
+%<latexrelease> \ifx#1\relax
+%<latexrelease> \protect\G@refundefinedtrue
+%<latexrelease> \nfss@text{\reset@font\bfseries ??}%
+%<latexrelease> \@latex@warning{Reference `#3' on page \thepage \space
+%<latexrelease> undefined}%
+%<latexrelease> \else
+%<latexrelease> \expandafter#2#1\null
+%<latexrelease> \fi}
+%<latexrelease>\let\@firstoffive\undefined
+%<latexrelease>\let\@secondoffive\undefined
+%<latexrelease>\def\@kernel@sref#1{\expandafter\@setref\csname r@#1\endcsname\@firstoftwo{#1}}
+%<latexrelease>\def\@kernel@spageref#1{\expandafter\@setref\csname r@#1\endcsname
+%<latexrelease> \@secondoftwo{#1}}
+%<latexrelease>\EndIncludeInRelease
+%<latexrelease>\IncludeInRelease{0000/00/00}%
+%<latexrelease> {\@kernel@sref}{store five arguments}%
+%<latexrelease>\def\@setref#1#2#3{%
+%<latexrelease> \ifx#1\relax
+%<latexrelease> \protect\G@refundefinedtrue
+%<latexrelease> \nfss@text{\reset@font\bfseries ??}%
+%<latexrelease> \@latex@warning{Reference `#3' on page \thepage \space
+%<latexrelease> undefined}%
+%<latexrelease> \else
+%<latexrelease> \expandafter#2#1\null
+%<latexrelease> \fi}
+%<latexrelease>\let\@firstoffive\undefined
+%<latexrelease>\let\@secondoffive\undefined
+%<latexrelease>\let\@kernel@sref\undefined
+%<latexrelease>\let\@kernel@spageref\undefined
+%<latexrelease>\EndIncludeInRelease
%<latexrelease>\IncludeInRelease{2022/06/01}%
%<latexrelease> {\ref}{Add starred reference commands}%
% \end{macrocode}
% \begin{macrocode}
-\def\@kernel@sref#1{\expandafter\@setref\csname r@#1\endcsname\@firstoftwo{#1}}
-\def\@kernel@spageref#1{\expandafter\@setref\csname r@#1\endcsname
- \@secondoftwo{#1}}
\let\@kernel@ref\@kernel@sref
\let\@kernel@pageref\@kernel@spageref
\NewDocumentCommand\ref{s}
@@ -334,6 +382,8 @@
% \begin{macro}{\label}
% \changes{v1.1d}{1994/11/04}{(ASAJ)Added \cs{protected@write}}
% \changes{v1.1d}{1994/11/04}{(ASAJ)Added \cs{protected@edef}}
+% \changes{v1.1q}{2023/05/12}{(UFi)extended to store five arguments}
+% \changes{v1.1q}{2023/05/12}{(UFi)added a hook with argument}
% The commands |\label| and |\refstepcounter| have been changed to
% allow |\protect|'ed commands to work properly. For example,
%\begin{verbatim}
@@ -343,16 +393,27 @@
% to something like |\foo{4.d}|. Change made 20 Jul 88.
%
% \begin{macrocode}
+%</2ekernel>
+%<*2ekernel|latexrelease>
+%<latexrelease>\IncludeInRelease{2023/06/01}%
+%<latexrelease> {\label}{store five label arguments}%
+\providecommand\@currentlabelname{}
+\providecommand\@currentHref{}
+\providecommand\@kernel@reserved@label@data{}
+\NewHookWithArguments{label}{1}
\def\label#1{\@bsphack
+ \begingroup
+ \UseHookWithArguments{label}{1}{#1}%
\protected@write\@auxout{}%
- {\string\newlabel{#1}{{\@currentlabel}{\thepage}}}%
+ {\string\newlabel{#1}{{\@currentlabel}{\thepage}%
+ {\@currentlabelname}{\@currentHref}{\@kernel@reserved@label@data}}}%
+ \endgroup
\@esphack}
+%<latexrelease>\EndIncludeInRelease
% \end{macrocode}
% \end{macro}
%
% \begin{macrocode}
-%</2ekernel>
-%<*2ekernel|latexrelease>
%<latexrelease>\IncludeInRelease{2022/06/01}%
%<latexrelease> {\Ref}{Add starred version}%
% \end{macrocode}
@@ -432,6 +493,16 @@
% \begin{macrocode}
%</2ekernel|latexrelease>
%<latexrelease>\EndIncludeInRelease
+%<latexrelease>\IncludeInRelease{0000/00/00}%
+%<latexrelease> {\label}{store five label arguments}%
+%<latexrelease>\let\@currenttitle\@undefined
+%<latexrelease>\let\@currenttarget\@undefined
+%<latexrelease>\let\@kernel@currentdata\@undefined
+%<latexrelease>\def\label#1{\@bsphack
+%<latexrelease> \protected@write\@auxout{}%
+%<latexrelease> {\string\newlabel{#1}{{\@currentlabel}{\thepage}}}%
+%<latexrelease> \@esphack}
+%<latexrelease>\EndIncludeInRelease
%<latexrelease>\IncludeInRelease{2020/10/01}%
%<latexrelease> {\Ref}{Add starred version}%
%<latexrelease>\def\@currentcounter{}