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%
% pxeverysel.sty
% originally written by Takayuki Yato (ZR)
% and modified by Hironobu Yamashita
%
% This package is distributed as part of the platex-tools bundle
% maintained by Hironobu Yamashita
% by courtesy of the original author.
% https://github.com/aminophen/platex-tools
%
% --------------------------------------------------------------------
% [Note]
% Update: version 2021/02/13 v0.9a does nothing, since
% pLaTeX2e 2021-??-?? will support the situation natively.
% --------------------------------------------------------------------
%
%% package declaration
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{pxeverysel}
[2021/02/13 v0.9b Patch to everysel for (u)pLaTeX]
%% Since LaTeX2e 2021-05-01, everysel.sty is merely
%% an emulation by everysel-ltx.sty from firstaid.
\chardef\pxys@status=\z@
\ifx\IfHookExistsTF\@undefined\else % >= LaTeX2e 2020-10-01
\IfHookExistsTF{selectfont}{% % >= LaTeX2e 2021-05-01
\chardef\pxys@status=\@ne
}{}
\fi
\ifnum\pxys@status=\@ne
% if LaTeX2e and pLaTeX2e are inconsistent, raise an error!
\ifx\delayed@k@adjustment\@undefined
\PackageError{pxeverysel}{Inconsistent LaTeX2e/pLaTeX2e combination}\@ehc
\else
\PackageInfo{pxeverysel}{This package is no longer needed}%
\fi
\RequirePackage{everysel}% input anyway
\expandafter\endinput
\fi
%% The rest of this package is meant for
%% LaTeX2e 2020-10-01 PL4 or older.
%% in case it's too late ...
\@ifpackageloaded{everysel}{%
% everysel.sty removes \@EverySelectfont@Init once it is used
\ifx\@EverySelectfont@Init\undefined
\PackageError{pxeverysel}{%
Patch too late!\MessageBreak
Load pxeverysel earlier}\@ehc
\expandafter\endinput
\fi
}{}
%% load it, but ensure that \@EverySelectfont@Init is not executed
% [Note] everysel.sty contains
% \AtBeginDocument{\@EverySelectfont@Init}
% at the end. In most cases, the execution is actually delayed;
% however,
% \AtBeginDocument{\RequirePackage{everysel}}
% can execute it immediately (e.g. found in sidecap.sty).
% In this case, delay it until the end of pxeverysel.sty.
\ifx\AtBeginDocument\@firstofone
\def\pxys@begindocumenthook{\let\AtBeginDocument\@firstofone}
\def\AtBeginDocument{\g@addto@macro\pxys@begindocumenthook}
\AtEndOfPackage{\pxys@begindocumenthook}
\fi
\RequirePackage{everysel}
%% support for (u)pLaTeX font tracing
\@ifpackageloaded{tracefnt}{%
\ifx\kanjiskip\@undefined\else\ifx\ucs\@undefined
\RequirePackage{ptrace}\else\RequirePackage{uptrace}\fi\fi}{}
%--------------------------------------- helpers
%% preparations
\def\pxys@pkgname{pxeverysel}
\def\pxys@warn{\PackageWarningNoLine\pxys@pkgname}
%% unique tokens
\def\pxys@mark{\pxys@mark@}
\def\pxys@fin{\pxys@fin@}
%% \pxys@patch@cmd\CMD{<pre>}{<post>}{<new>}
\@onlypreamble\pxys@patch@cmd
\def\pxys@patch@cmd#1#2#3#4{%
\def\pxys@next##1#2##2#3##3\pxys@mark##4\pxys@fin{%
\ifx\pxys@mark##4\pxys@mark
\let\pxys@fragment\relax
\else
\def\pxys@fragment{##2}%
\def#1{##1#4##3}%
\fi}%
\expandafter\pxys@next#1\pxys@mark#2#3\pxys@mark\pxys@fin}
%% \pxys@append@to\CSa\CSb
\@onlypreamble\pxys@append@to
\def\pxys@append@to#1#2{%
\expandafter\g@addto@macro\expandafter#1\expandafter{#2}}
%% \pxys@term
\let\pxys@term\relax
%---------------------------------------
%% variables
\let\pxys@self@hook\@empty
\let\pxys@everysel@hook\@empty
\@onlypreamble\pxys@selectfont
\let\pxys@selectfont\relax
\@onlypreamble\pxys@org@selectfont
\let\pxys@org@selectfont\relax
\@onlypreamble\pxys@new@selectfont
\let\pxys@new@selectfont\relax
%% \@EverySelectfont@Init redefined
\@onlypreamble\pxys@EverySelectfont@Init
\let\pxys@EverySelectfont@Init\@EverySelectfont@Init
\def\@EverySelectfont@Init{%
\pxys@preproc
\pxys@EverySelectfont@Init
\pxys@postproc}
%% \pxys@preproc
\@onlypreamble\pxys@preproc
\def\pxys@preproc{%
% prepare
\expandafter\let\expandafter\pxys@selectfont
\csname selectfont \endcsname
\let\pxys@org@selectfont\pxys@selectfont
% extract "pre-\size@update" insertion
\pxys@append@to\pxys@selectfont\pxys@term
\pxys@patch@cmd\pxys@selectfont
{\pickup@font\font@name}{\size@update\pxys@term}% % plfonts/ptrace
{\pickup@font\font@name\pxys@self@hook\pxys@everysel@hook
\size@update}%
\ifx\pxys@fragment\relax
\let\pxys@selectfont\pxys@org@selectfont
% extract "pre-\enc@update" insertion
\pxys@patch@cmd\pxys@selectfont
{\pickup@font\font@name}{\size@update\enc@update}% % ltfsstrc/tracefnt
{\pickup@font\font@name\pxys@self@hook\pxys@everysel@hook
\size@update\enc@update}%
\ifx\pxys@fragment\relax % failure
\let\pxys@selectfont\relax
\else
\pxys@append@to\pxys@self@hook\pxys@fragment
\fi
\else
\pxys@append@to\pxys@self@hook\pxys@fragment
\fi
\let\pxys@new@selectfont\pxys@selectfont
% prepare for everysel routine
\let\pxys@CheckCommand\CheckCommand
\let\CheckCommand\@gobble
% hack for disabling duplicate font info
\expandafter\let\expandafter\pxys@ver@tracefnt
\csname ver@tracefnt.sty\endcsname
\expandafter\let\csname ver@tracefnt.sty\endcsname\@undefined}
%% \pxys@postproc
\@onlypreamble\pxys@postproc
\def\pxys@postproc{%
% revert the hack for disabling duplicate font info
\expandafter\let\csname ver@tracefnt.sty\endcsname\pxys@ver@tracefnt
\let\pxys@ver@tracefnt\@undefined
% post handling of everysel routine
\let\CheckCommand\pxys@CheckCommand
\let\pxys@CheckCommand\@undefined
\expandafter\let\expandafter\pxys@selectfont
\csname selectfont \endcsname
% extract the code insertion by everysel
\pxys@patch@cmd\pxys@selectfont
{\pickup@font\font@name}{\size@update\enc@update}{}%
\ifx\pxys@fragment\relax % failure
\let\pxys@new@selectfont\relax
\else % success
\pxys@append@to\pxys@everysel@hook\pxys@fragment
\fi
% commit the change
\ifx\pxys@new@selectfont\relax % failure
\let\pxys@selectfont\pxys@org@selectfont % revert
\pxys@warn{Failed in patching \string\selectfont}%
\else % success
\let\pxys@selectfont\pxys@new@selectfont
\fi
\expandafter\let\csname selectfont \endcsname\pxys@selectfont}
%--------------------------------------- done
\endinput
%% EOF
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