11 files changed, 94 insertions, 30 deletions
diff --git a/Master/texmf-dist/doc/latex/platex-tools/LICENSE b/Master/texmf-dist/doc/latex/platex-tools/LICENSE
index 9661ce7b8d1..ecbe9e9df98 100644
--- a/Master/texmf-dist/doc/latex/platex-tools/LICENSE
+++ b/Master/texmf-dist/doc/latex/platex-tools/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2016-2020 Hironobu Yamashita
+Copyright (c) 2016-2021 Hironobu Yamashita
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/Master/texmf-dist/doc/latex/platex-tools/README.md b/Master/texmf-dist/doc/latex/platex-tools/README.md
index 99a92286e7a..a0f2b36d1ab 100644
--- a/Master/texmf-dist/doc/latex/platex-tools/README.md
+++ b/Master/texmf-dist/doc/latex/platex-tools/README.md
@@ -83,6 +83,6 @@ the 3-clause BSD license (see [LICENSE](./LICENSE)).
 
 ## Release Date
 
-2020-10-14
+2021-02-13
 
 Hironobu Yamashita
diff --git a/Master/texmf-dist/doc/latex/platex-tools/pxatbegshi.pdf b/Master/texmf-dist/doc/latex/platex-tools/pxatbegshi.pdf
index f43e6c22f18..6ab8a2fa8b1 100644
--- a/Master/texmf-dist/doc/latex/platex-tools/pxatbegshi.pdf
+++ b/Master/texmf-dist/doc/latex/platex-tools/pxatbegshi.pdf
diff --git a/Master/texmf-dist/doc/latex/platex-tools/pxatbegshi.tex b/Master/texmf-dist/doc/latex/platex-tools/pxatbegshi.tex
index e3d34cda14a..0b1b326835e 100644
--- a/Master/texmf-dist/doc/latex/platex-tools/pxatbegshi.tex
+++ b/Master/texmf-dist/doc/latex/platex-tools/pxatbegshi.tex
@@ -51,8 +51,9 @@ p\LaTeX の縦組クラス（tarticle.clsなど）で使うとエラーが出て
 \end{quote}
 と明言します（例：\verb+aminophen/platex-tools#15+）。
 
-\pLaTeXe~2020-10-01以降では、同等の機能が\pLaTeXe{}カーネルに
-存在するため、\textsf{pxatbegshi}パッケージは何もしません。
+\LaTeXe~2020-10-01以降では、\textsf{atbegshi}と同等の機能がカーネルに
+実装されていて、その対処は\pLaTeXe{}カーネルでなされます。
+この場合、\textsf{pxatbegshi}パッケージは何もしません。
 
 \newpage
 \section{使いかた}
diff --git a/Master/texmf-dist/doc/latex/platex-tools/pxeverysel.pdf b/Master/texmf-dist/doc/latex/platex-tools/pxeverysel.pdf
index 01e9e6e09a9..3ccbda227ee 100644
--- a/Master/texmf-dist/doc/latex/platex-tools/pxeverysel.pdf
+++ b/Master/texmf-dist/doc/latex/platex-tools/pxeverysel.pdf
diff --git a/Master/texmf-dist/doc/latex/platex-tools/pxeverysel.tex b/Master/texmf-dist/doc/latex/platex-tools/pxeverysel.tex
index ab460879545..56b1076ffec 100644
--- a/Master/texmf-dist/doc/latex/platex-tools/pxeverysel.tex
+++ b/Master/texmf-dist/doc/latex/platex-tools/pxeverysel.tex
@@ -36,6 +36,13 @@ Martin Schr\"oder氏による\textsf{everysel}パッケージをp\LaTeX で
 この\textsf{pxeverysel}パッケージを読み込むことで、p\LaTeX でも
 \textsf{everysel}パッケージを使えるようになります。
 
+\LaTeXe~2021-05-01以降では、\textsf{everysel}と同等の機能がカーネルに
+実装されていて、その対処は\pLaTeXe{}カーネルでなされます。
+この場合、\textsf{pxeverysel}パッケージは何もしません。
+
+\newpage
+\section{使いかた}
+
 使いかたは、\textsf{everysel}パッケージの代わりに、あるいは
 \textsf{everysel}パッケージに追加して、\textsf{pxeverysel}パッケージを
 読み込むだけです\footnote{稀に\\\texttt{%
diff --git a/Master/texmf-dist/doc/latex/platex-tools/pxeveryshi.pdf b/Master/texmf-dist/doc/latex/platex-tools/pxeveryshi.pdf
index 35418cd9774..449c93f8e32 100644
--- a/Master/texmf-dist/doc/latex/platex-tools/pxeveryshi.pdf
+++ b/Master/texmf-dist/doc/latex/platex-tools/pxeveryshi.pdf
diff --git a/Master/texmf-dist/doc/latex/platex-tools/pxeveryshi.tex b/Master/texmf-dist/doc/latex/platex-tools/pxeveryshi.tex
index 598fba6a5b8..0c5e2e5e9f0 100644
--- a/Master/texmf-dist/doc/latex/platex-tools/pxeveryshi.tex
+++ b/Master/texmf-dist/doc/latex/platex-tools/pxeveryshi.tex
@@ -44,8 +44,9 @@ p\LaTeX の縦組クラス（tarticle.clsなど）で使うとエラーが出て
 \textsf{everyshi}パッケージ（およびこれに依存するパッケージ）が
 使えるようになります。
 
-\pLaTeXe~2020-10-01以降では、同等の機能が\pLaTeXe{}カーネルに
-存在するため、\textsf{pxeveryshi}パッケージは何もしません。
+\LaTeXe~2020-10-01以降では、\textsf{everyshi}と同等の機能がカーネルに
+実装されていて、その対処は\pLaTeXe{}カーネルでなされます。
+この場合、\textsf{pxeveryshi}パッケージは何もしません。
 
 \section{使いかた}
 
diff --git a/Master/texmf-dist/tex/latex/platex-tools/pxatbegshi.sty b/Master/texmf-dist/tex/latex/platex-tools/pxatbegshi.sty
index 3c8a8304154..856b95eb44d 100644
--- a/Master/texmf-dist/tex/latex/platex-tools/pxatbegshi.sty
+++ b/Master/texmf-dist/tex/latex/platex-tools/pxatbegshi.sty
@@ -30,29 +30,42 @@
 %% package declaration
 \NeedsTeXFormat{pLaTeX2e}
 \ProvidesPackage{pxatbegshi}
-    [2020/09/25 v0.7 Patch to atbegshi for (u)pLaTeX]
-
-%% preparations
-\def\pxabgs@pkgname{pxatbegshi}
-\def\pxabgs@warn{\PackageWarningNoLine\pxabgs@pkgname}
-
-%% load it
-\RequirePackage{atbegshi}
+    [2021/02/13 v0.7b Patch to atbegshi for (u)pLaTeX]
 
 %% Since LaTeX2e 2020-10-01, atbegshi.sty is merely
 %% an emulation by atbegshi-ltx.sty from ltshipout.dtx.
-%% The new code does NOT define \AtBegShi@Output,
-%% so we can detect it!
 
-\ifx\AtBegShi@Output\@undefined
-  %% pLaTeX2e 2020-10-01 natively supports the situation
-  \PackageInfo{pxatbegshi}{This package is no longer needed}
+\chardef\pxabgs@status=\z@
+\ifx\IfHookExistsTF\@undefined\else  % >= LaTeX2e 2020-10-01
+  \IfHookExistsTF{shipout/before}{%  % >= LaTeX2e 2020-10-01
+    \chardef\pxabgs@status=\@ne
+  }{}
+\fi
+\ifnum\pxabgs@status=\@ne
+  % if LaTeX2e and pLaTeX2e are inconsistent, raise an error!
+  \@ifl@t@r\pfmtversion{2020/10/01}{%
+    \PackageInfo{pxatbegshi}{This package is no longer needed}%
+  }{%
+    \PackageError{pxatbegshi}{Inconsistent LaTeX2e/pLaTeX2e combination}\@ehc
+  }%
+  \RequirePackage{atbegshi}% input anyway
   \expandafter\endinput
 \fi
 
 %% The rest of this package is meant for
 %% LaTeX2e 2020-02-02 PL5 or older.
 
+\RequirePackage{atbegshi}
+
+\ifx\AtBegShi@Output\@undefined
+  \PackageError{pxatbegshi}{This should not happen}\@ehc
+  \expandafter\endinput
+\fi
+
+%% preparations
+\def\pxabgs@pkgname{pxatbegshi}
+\def\pxabgs@warn{\PackageWarningNoLine\pxabgs@pkgname}
+
 %% internal macros are locally effective
 \begingroup
 
diff --git a/Master/texmf-dist/tex/latex/platex-tools/pxeverysel.sty b/Master/texmf-dist/tex/latex/platex-tools/pxeverysel.sty
index 5c00f1830f2..8a1a9b5eade 100644
--- a/Master/texmf-dist/tex/latex/platex-tools/pxeverysel.sty
+++ b/Master/texmf-dist/tex/latex/platex-tools/pxeverysel.sty
@@ -8,14 +8,40 @@
 % 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}
-    [2018/10/28 v0.9 Patch to everysel for (u)pLaTeX]
+    [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
 
-%% previous code for ctex support has been removed in v0.5,
-%% as ctex has depended on pxeverysel since 2016/12/27 v2.4.7
+%% The rest of this package is meant for
+%% LaTeX2e 2020-10-01 PL4 or older.
 
 %% in case it's too late ...
 \@ifpackageloaded{everysel}{%
diff --git a/Master/texmf-dist/tex/latex/platex-tools/pxeveryshi.sty b/Master/texmf-dist/tex/latex/platex-tools/pxeveryshi.sty
index 23bbd8abe0e..0b7144a53af 100644
--- a/Master/texmf-dist/tex/latex/platex-tools/pxeveryshi.sty
+++ b/Master/texmf-dist/tex/latex/platex-tools/pxeveryshi.sty
@@ -15,25 +15,41 @@
 % --------------------------------------------------------------------
 %
 
-\NeedsTeXFormat{pLaTeX2e}
+%% package declaration
+\NeedsTeXFormat{LaTeX2e}
 \ProvidesPackage{pxeveryshi}
-    [2020/09/25 v0.2 everyshi package for pLaTeX]
-\RequirePackageWithOptions{everyshi}
+    [2021/02/13 v0.2b everyshi package for (u)pLaTeX]
 
 %% Since LaTeX2e 2020-10-01, everyshi.sty is merely
 %% an emulation by everyshi-ltx.sty from ltshipout.dtx.
-%% The new code does NOT define \@EveryShipout@Output,
-%% so we can detect it!
 
-\ifx\@EveryShipout@Output\@undefined
-  %% pLaTeX2e 2020-10-01 natively supports the situation
-  \PackageInfo{pxeveryshi}{This package is no longer needed}
+\chardef\pxevsh@status=\z@
+\ifx\IfHookExistsTF\@undefined\else  % >= LaTeX2e 2020-10-01
+  \IfHookExistsTF{shipout/before}{%  % >= LaTeX2e 2020-10-01
+    \chardef\pxevsh@status=\@ne
+  }{}
+\fi
+\ifnum\pxevsh@status=\@ne
+  % if LaTeX2e and pLaTeX2e are inconsistent, raise an error!
+  \@ifl@t@r\pfmtversion{2020/10/01}{%
+    \PackageInfo{pxeveryshi}{This package is no longer needed}%
+  }{%
+    \PackageError{pxeveryshi}{Inconsistent LaTeX2e/pLaTeX2e combination}\@ehc
+  }%
+  \RequirePackageWithOptions{everyshi}% input anyway
   \expandafter\endinput
 \fi
 
 %% The rest of this package is meant for
 %% LaTeX2e 2020-02-02 PL5 or older.
 
+\RequirePackageWithOptions{everyshi}
+
+\ifx\@EveryShipout@Output\@undefined
+  \PackageError{pxeveryshi}{This should not happen}\@ehc
+  \expandafter\endinput
+\fi
+
 \def\@EveryShipout@Output{%
   \setbox8\vbox{%
     \yoko