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use sockets for math phantoms

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This commit is contained in:
Ulrike Fischer 2025-01-28 00:20:06 +01:00
parent cf0a3d4434
commit 7e000a0db1
2 changed files with 85 additions and 24 deletions
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52
luamml-patches-kernel.sty
View File

@ -22,30 +22,34 @@
}
}
\cs_set:Npn \mathph@nt #1 #2 {
\setbox \z@ = \hbox {
$
\m@th
#1
{#2}
\luamml_save:nNn {mathphant} #1 {mphantom}
$
}
\luamml_annotate:nen {1} {
nucleus = true,
core = {[0] = 'mpadded',
\ifh@\else
width = 0,
\fi
\ifv@\else
height = 0, depth = 0,
\fi
consume_label'mathphant',
}
} {
\finph@nt
}
}
\IfPackageAtLeastTF{latex-lab-testphase-text}{2025-01-27}
{}
{
\cs_set:Npn \mathph@nt #1 #2 {
\setbox \z@ = \hbox {
$
\m@th
#1
{#2}
\luamml_save:nNn {mathphant} #1 {mphantom}
$
}
\luamml_annotate:nen {1} {
nucleus = true,
core = {[0] = 'mpadded',
\ifh@\else
width = 0,
\fi
\ifv@\else
height = 0, depth = 0,
\fi
consume_label'mathphant',
}
} {
\finph@nt
}
}
}
\@ifpackageloaded {unicode-math} {} {
\cs_new:Npn \__luamml_kernel_define_character:Nnn #1#2#3 {

57
luamml.dtx
View File

@ -527,6 +527,25 @@
% In various places luamml has to add code to kernel commands. This is done through
% sockets which are predeclared in lttagging.
%
% \subsubsection{Save socket}
% This socket is a wrapper around the \cs{luamml_save:nNn} command
% It should provided until 2025-06-01
% \begin{macrocode}
\str_if_exist:cF { l__socket_tagsupport/math/luamml/save_plug_str }
{
\NewSocket{tagsupport/math/luamml/save}{1}
\AssignSocketPlug{tagsupport/math/luamml/save}{noop}
}
% \end{macrocode}
%
% \begin{macrocode}
\NewSocketPlug{tagsupport/math/luamml/save}{luamml}
{
\luamml_save:nNn #1
}
\AssignSocketPlug{tagsupport/math/luamml/save}{luamml}
% \end{macrocode}
%
% \subsubsection{amsmath alignments}
%
% This socket finalize the \texttt{mtable} in alignments like align or gather.
@ -610,6 +629,44 @@
\AssignSocketPlug{tagsupport/math/luamml/artifact}{default}
%</luatex>
% \end{macrocode}
%
% \subsubsection{Math phantom socket}
% This socket is used around \cs{finph@nt}.
% It should provided until 2025-06-01
% \begin{macrocode}
\str_if_exist:cF { l__socket_tagsupport/math/luamml/finph@nt_plug_str }
{
\NewSocket{tagsupport/math/luamml/finph@nt}{2}
\NewSocketPlug{tagsupport/math/luamml/finph@nt}{default}{#2}
\AssignSocketPlug{tagsupport/math/luamml/finph@nt}{default}
}
% \end{macrocode}
%
% \begin{macrocode}
%<*luatex>
\NewSocketPlug{tagsupport/math/luamml/finph@nt}{luamml}
{
\luamml_annotate:nen {1}
{
nucleus = true,
core =
{
[0] = 'mpadded',
\ifh@\else
width = 0,
\fi
\ifv@\else
height = 0, depth = 0,
\fi
consume_label'mathphant',
}
}
{ #2 }
}
\AssignSocketPlug{tagsupport/math/luamml/finph@nt}{luamml}
%</luatex>
% \end{macrocode}
%
% \subsection{Patching}
% For some packages, we ship with patches to make them more compatible and to
% demonstrate how other code can be patched to work with \texttt{luamml}.