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|
%%^^A%% um-code-compat.dtx -- part of UNICODE-MATH <wspr.io/unicode-math>
% \section{Compatibility}
%
% \begin{macrocode}
%<*package>
% \end{macrocode}
%
% \begin{macro}{\@@_check_and_fix:NNnnnn}
% \darg{command}
% \darg{factory command}
% \darg{parameter text}
% \darg{expected replacement text}
% \darg{new replacement text for \LuaTeX}
% \darg{new replacement text for \XeTeX}
% Tries to patch \meta{command}.
% If \meta{command} is undefined, do nothing.
% Otherwise it must be a macro with the given \meta{parameter text} and \meta{expected replacement text}, created by the given \meta{factory command} or equivalent.
% In this case it will be overwritten using the \meta{parameter text} and the \meta{new replacement text for \LuaTeX} or the \meta{new replacement text for \XeTeX}, depending on the engine.
% Otherwise issue a warning and don’t overwrite.
% \begin{macrocode}
\cs_new_protected_nopar:Nn \@@_check_and_fix:NNnnnn
{
\cs_if_exist:NT #1
{
\token_if_macro:NTF #1
{
\group_begin:
#2 \@@_tmpa:w #3 { #4 }
\cs_if_eq:NNTF #1 \@@_tmpa:w
{
\msg_info:nnx { unicode-math } { patch-macro }
{ \token_to_str:N #1 }
\group_end:
#2 #1 #3
%<XE> { #6 }
%<LU> { #5 }
}
{
\msg_warning:nnxxx { unicode-math } { wrong-meaning }
{ \token_to_str:N #1 } { \token_to_meaning:N #1 }
{ \token_to_meaning:N \@@_tmpa:w }
\group_end:
}
}
{
\msg_warning:nnx { unicode-math } { macro-expected }
{ \token_to_str:N #1 }
}
}
}
% \end{macrocode}
% \end{macro}
%
% \begin{macro}{\@@_check_and_fix:NNnnn}
% \darg{command}
% \darg{factory command}
% \darg{parameter text}
% \darg{expected replacement text}
% \darg{new replacement text}
% Tries to patch \meta{command}.
% If \meta{command} is undefined, do nothing.
% Otherwise it must be a macro with the given \meta{parameter text} and \meta{expected replacement text}, created by the given \meta{factory command} or equivalent.
% In this case it will be overwritten using the \meta{parameter text} and the \meta{new replacement text}.
% Otherwise issue a warning and don’t overwrite.
% \begin{macrocode}
\cs_new_protected_nopar:Nn \@@_check_and_fix:NNnnn
{
\@@_check_and_fix:NNnnnn #1 #2 { #3 } { #4 } { #5 } { #5 }
}
% \end{macrocode}
% \end{macro}
%
% \begin{macro}{\@@_check_and_fix_luatex:NNnnn}
% \begin{macro}{\@@_check_and_fix_luatex:cNnnn}
% \darg{command}
% \darg{factory command}
% \darg{parameter text}
% \darg{expected replacement text}
% \darg{new replacement text}
% Tries to patch \meta{command}.
% If \XeTeX\ is the current engine or \meta{command} is undefined, do nothing.
% Otherwise it must be a macro with the given \meta{parameter text} and \meta{expected replacement text}, created by the given \meta{factory command} or equivalent.
% In this case it will be overwritten using the \meta{parameter text} and the \meta{new replacement text}.
% Otherwise issue a warning and don’t overwrite.
% \begin{macrocode}
\cs_new_protected_nopar:Nn \@@_check_and_fix_luatex:NNnnn
{
%<LU> \@@_check_and_fix:NNnnn #1 #2 { #3 } { #4 } { #5 }
}
\cs_generate_variant:Nn \@@_check_and_fix_luatex:NNnnn { c }
% \end{macrocode}
% \end{macro}
% \end{macro}
%
% \paragraph{\pkg{url}}
% Simply need to get \pkg{url} in a state such that
% when it switches to math mode and enters \ascii\ characters, the maths
% setup (i.e., \pkg{unicode-math}) doesn't remap the symbols into Plane 1.
% Which is, of course, what \cs{mathup} is doing.
%
% This is the same as writing, e.g., |\def\UrlFont{\ttfamily\@@_switchto_up:}|
% but activates automatically so old documents that might change the \cs{url}
% font still work correctly.
% \begin{macrocode}
\AtEndOfPackageFile * {url}
{
\tl_put_left:Nn \Url@FormatString { \@@_switchto_up: }
\tl_put_right:Nn \UrlSpecials
{
\do\`{\mathchar`\`}
\do\'{\mathchar`\'}
\do\${\mathchar`\$}
\do\&{\mathchar`\&}
}
}
% \end{macrocode}
%
% \paragraph{\pkg{amsmath}}
% Since the mathcode of |`\-| is greater than eight bits, this piece of |\AtBeginDocument| code from \pkg{amsmath} dies if we try and set the maths font in the preamble:
% \begin{macrocode}
\AtEndOfPackageFile * {amsmath}
{
%<*XE>
\tl_remove_once:Nn \@begindocumenthook
{
\mathchardef\std@minus\mathcode`\-\relax
\mathchardef\std@equal\mathcode`\=\relax
}
\def\std@minus{\Umathcharnum\Umathcodenum`\-\relax}
\def\std@equal{\Umathcharnum\Umathcodenum`\=\relax}
%</XE>
% \end{macrocode}
%
% \begin{macrocode}
\cs_set:Npn \@cdots {\mathinner{\cdots}}
\cs_set_eq:NN \dotsb@ \cdots
% \end{macrocode}
% This isn't as clever as the \pkg{amsmath} definition but I think it works:
% \begin{macrocode}
%<*XE>
\def \resetMathstrut@
{%
\setbox\z@\hbox{$($}%)
\ht\Mathstrutbox@\ht\z@ \dp\Mathstrutbox@\dp\z@
}
% \end{macrocode}
% The |subarray| environment uses inappropriate font dimensions.
% \begin{macrocode}
\@@_check_and_fix:NNnnn \subarray \cs_set:Npn { #1 }
{
\vcenter
\bgroup
\Let@
\restore@math@cr
\default@tag
\baselineskip \fontdimen 10~ \scriptfont \tw@
\advance \baselineskip \fontdimen 12~ \scriptfont \tw@
\lineskip \thr@@@@ \fontdimen 8~ \scriptfont \thr@@@@
\lineskiplimit \lineskip
\ialign
\bgroup
\ifx c #1 \hfil \fi
$ \m@th \scriptstyle ## $
\hfil
\crcr
}
{
\vcenter
\c_group_begin_token
\Let@
\restore@math@cr
\default@tag
\skip_set:Nn \baselineskip
{
% \end{macrocode}
% Here we use stack top shift + stack bottom shift, which sounds reasonable.
% \begin{macrocode}
\@@_stack_num_up:N \scriptstyle
+ \@@_stack_denom_down:N \scriptstyle
}
% \end{macrocode}
% Here we use the minimum stack gap.
% \begin{macrocode}
\lineskip \@@_stack_vgap:N \scriptstyle
\lineskiplimit \lineskip
\ialign
\c_group_begin_token
\token_if_eq_meaning:NNT c #1 { \hfil }
\c_math_toggle_token
\m@th
\scriptstyle
\c_parameter_token \c_parameter_token
\c_math_toggle_token
\hfil
\crcr
}
%</XE>
% \end{macrocode}
% The roots need a complete rework.
% \begin{macrocode}
\@@_check_and_fix_luatex:NNnnn \plainroot@ \cs_set_nopar:Npn { #1 \of #2 }
{
\setbox \rootbox \hbox
{
$ \m@th \scriptscriptstyle { #1 } $
}
\mathchoice
{ \r@@@@t \displaystyle { #2 } }
{ \r@@@@t \textstyle { #2 } }~
{ \r@@@@t \scriptstyle { #2 } }
{ \r@@@@t \scriptscriptstyle { #2 } }
\egroup
}
{
\bool_if:nTF
{
\int_compare_p:nNn { \uproot@ } = { \c_zero }
&& \int_compare_p:nNn { \leftroot@ } = { \c_zero }
}
{
\Uroot \l_@@_radical_sqrt_tl { #1 } { #2 }
}
{
\hbox_set:Nn \rootbox
{
\c_math_toggle_token
\m@th
\scriptscriptstyle { #1 }
\c_math_toggle_token
}
\mathchoice
{ \r@@@@t \displaystyle { #2 } }
{ \r@@@@t \textstyle { #2 } }
{ \r@@@@t \scriptstyle { #2 } }
{ \r@@@@t \scriptscriptstyle { #2 } }
}
\c_group_end_token
}
\@@_check_and_fix:NNnnnn \r@@@@t \cs_set_nopar:Npn { #1 #2 }
{
\setboxz@h { $ \m@th #1 \sqrtsign { #2 } $ }
\dimen@ \ht\z@
\advance \dimen@ -\dp\z@
\setbox\@ne \hbox { $ \m@th #1 \mskip \uproot@ mu $ }
\advance \dimen@ by 1.667 \wd\@ne
\mkern -\leftroot@ mu
\mkern 5mu
\raise .6\dimen@ \copy\rootbox
\mkern -10mu
\mkern \leftroot@ mu
\boxz@
}
{
\hbox_set:Nn \l_tmpa_box
{
\c_math_toggle_token
\m@th
#1
\mskip \uproot@ mu
\c_math_toggle_token
}
\Uroot \l_@@_radical_sqrt_tl
{
\box_move_up:nn { \box_wd:N \l_tmpa_box }
{
\hbox:n
{
\c_math_toggle_token
\m@th
\mkern -\leftroot@ mu
\box_use:N \rootbox
\mkern \leftroot@ mu
\c_math_toggle_token
}
}
}
{ #2 }
}
{
\hbox_set:Nn \l_tmpa_box
{
\c_math_toggle_token
\m@th
#1
\sqrtsign { #2 }
\c_math_toggle_token
}
\hbox_set:Nn \l_tmpb_box
{
\c_math_toggle_token
\m@th
#1
\mskip \uproot@ mu
\c_math_toggle_token
}
\mkern -\leftroot@ mu
\@@_mathstyle_scale:Nnn #1 { \kern }
{
\fontdimen 63 \l_@@_font
}
\box_move_up:nn
{
\box_wd:N \l_tmpb_box
+ (\box_ht:N \l_tmpa_box - \box_dp:N \l_tmpa_box)
* \number \fontdimen 65 \l_@@_font / 100
}
{
\box_use:N \rootbox
}
\@@_mathstyle_scale:Nnn #1 { \kern }
{
\fontdimen 64 \l_@@_font
}
\mkern \leftroot@ mu
\box_use_clear:N \l_tmpa_box
}
}
% \end{macrocode}
%
% \paragraph{\pkg{amsopn}}
% This code is to improve the output of analphabetic symbols in text of operator names (\cs{sin}, \cs{cos}, etc.). Just comment out the offending lines for now:
% \begin{macrocode}
%<*XE>
\AtEndOfPackageFile * {amsopn}
{
\cs_set:Npn \newmcodes@
{
\mathcode`\'39\scan_stop:
\mathcode`\*42\scan_stop:
\mathcode`\."613A\scan_stop:
%% \ifnum\mathcode`\-=45 \else
%% \mathchardef\std@minus\mathcode`\-\relax
%% \fi
\mathcode`\-45\scan_stop:
\mathcode`\/47\scan_stop:
\mathcode`\:"603A\scan_stop:
}
}
%</XE>
% \end{macrocode}
%
% \paragraph{\pkg{mathtools}}
% \pkg{mathtools}’s |\cramped| command and others that make use of its internal version use an incorrect font dimension.
%
% \begin{macrocode}
%<*XE>
\AtEndOfPackageFile * { mathtools }
{
\@@_check_and_fix:NNnnn
\MT_cramped_internal:Nn \cs_set_nopar:Npn { #1 #2 }
{
\sbox \z@
{
$
\m@th
#1
\nulldelimiterspace = \z@
\radical \z@ { #2 }
$
}
\ifx #1 \displaystyle
\dimen@ = \fontdimen 8 \textfont 3
\advance \dimen@ .25 \fontdimen 5 \textfont 2
\else
\dimen@ = 1.25 \fontdimen 8
\ifx #1 \textstyle
\textfont
\else
\ifx #1 \scriptstyle
\scriptfont
\else
\scriptscriptfont
\fi
\fi
3
\fi
\advance \dimen@ -\ht\z@
\ht\z@ = -\dimen@
\box\z@
}
% \end{macrocode}
% The \XeTeX\ version is pretty similar to the legacy version, only using the correct font dimensions.
% Note we used `\verb|\XeTeXradical|' with the family 255 to be almost sure
% that the radical rule width is not set. Former use of `\verb|\newfam|' had an
% upsetting effect on legacy math alphabets.
% \begin{macrocode}
{
\hbox_set:Nn \l_tmpa_box
{
\color@setgroup
\c_math_toggle_token
\m@th
#1
\dim_zero:N \nulldelimiterspace
\XeTeXradical \c_two_hundred_fifty_five \c_zero { #2 }
\c_math_toggle_token
\color@endgroup
}
\box_set_ht:Nn \l_tmpa_box
{
\box_ht:N \l_tmpa_box
% \end{macrocode}
% Here we use the radical vertical gap.
% \begin{macrocode}
- \@@_radical_vgap:N #1
}
\box_use_clear:N \l_tmpa_box
}
}
%</XE>
% \end{macrocode}
%
% \begin{macro}{\overbracket}
% \begin{macro}{\underbracket}
% \pkg{mathtools}’s |\overbracket| and |\underbracket| take optional
% arguments and are defined in terms of rules, so we keep them, and rename
% ours to |\Uoverbracket| and |\Uunderbracket|.
% \begin{macrocode}
\AtEndOfPackageFile * { mathtools }
{
\cs_set_eq:NN \MToverbracket \overbracket
\cs_set_eq:NN \MTunderbracket \underbracket
\AtBeginDocument
{
\msg_warning:nn { unicode-math } { mathtools-overbracket }
\def\downbracketfill#1#2
{%
% \end{macrocode}
% Original definition used the height of |\braceld| which is not available
% with Unicode fonts, so we are hard coding the $5/18$ex suggested by
% \pkg{mathtools}’s documentation.
% \begin{macrocode}
\edef\l_MT_bracketheight_fdim{.27ex}%
\downbracketend{#1}{#2}
\leaders \vrule \@height #1 \@depth \z@ \hfill
\downbracketend{#1}{#2}%
}
\def\upbracketfill#1#2
{%
\edef\l_MT_bracketheight_fdim{.27ex}%
\upbracketend{#1}{#2}
\leaders \vrule \@height \z@ \@depth #1 \hfill
\upbracketend{#1}{#2}%
}
\let\Uoverbracket =\overbracket
\let\Uunderbracket=\underbracket
\let\overbracket =\MToverbracket
\let\underbracket =\MTunderbracket
}% end of AtBeginDocument
% \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\dblcolon}
% \begin{macro}{\coloneqq}
% \begin{macro}{\Coloneqq}
% \begin{macro}{\eqqcolon}
% \pkg{mathtools} defines several commands as combinations of colons and
% other characters, but with meanings incompatible to \pkg{unicode-math}.
% Thus we issue a warning. Because \pkg{mathtools} uses
% \cmd{\providecommand} \cmd{\AtBeginDocument}, we can just define the
% offending commands here.
% \begin{macrocode}
\msg_warning:nn { unicode-math } { mathtools-colon }
\NewDocumentCommand \dblcolon { } { \Colon }
\NewDocumentCommand \coloneqq { } { \coloneq }
\NewDocumentCommand \Coloneqq { } { \Coloneq }
\NewDocumentCommand \eqqcolon { } { \eqcolon }
}
% \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \paragraph{\pkg{colonequals}}
%
% \begin{macro}{\ratio}
% \begin{macro}{\coloncolon}
% \begin{macro}{\minuscolon}
% \begin{macro}{\colonequals}
% \begin{macro}{\equalscolon}
% \begin{macro}{\coloncolonequals}
% Similarly to \pkg{mathtools}, the \pkg{colonequals} defines several colon
% combinations. Fortunately there are no name clashes, so we can just
% overwrite their definitions.
% \begin{macrocode}
\AtEndOfPackageFile * { colonequals }
{
\msg_warning:nn { unicode-math } { colonequals }
\RenewDocumentCommand \ratio { } { \mathratio }
\RenewDocumentCommand \coloncolon { } { \Colon }
\RenewDocumentCommand \minuscolon { } { \dashcolon }
\RenewDocumentCommand \colonequals { } { \coloneq }
\RenewDocumentCommand \equalscolon { } { \eqcolon }
\RenewDocumentCommand \coloncolonequals { } { \Coloneq }
}
% \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macrocode}
%</package>
% \end{macrocode}
\endinput
% /©
%
% ------------------------------------------------
% The UNICODE-MATH package <wspr.io/unicode-math>
% ------------------------------------------------
% This package is free software and may be redistributed and/or modified under
% the conditions of the LaTeX Project Public License, version 1.3c or higher
% (your choice): <http://www.latex-project.org/lppl/>.
% ------------------------------------------------
% Copyright 2006-2017 Will Robertson, LPPL "maintainer"
% Copyright 2010-2017 Philipp Stephani
% Copyright 2011-2017 Joseph Wright
% Copyright 2012-2015 Khaled Hosny
% ------------------------------------------------
%
% ©/
|