6 files changed, 223 insertions, 47 deletions
diff --git a/Master/texmf-dist/tex/platex/base/exppl2e.sty b/Master/texmf-dist/tex/platex/base/exppl2e.sty
index b4eadb72265..9fab0c5b09f 100644
--- a/Master/texmf-dist/tex/platex/base/exppl2e.sty
+++ b/Master/texmf-dist/tex/platex/base/exppl2e.sty
@@ -34,7 +34,7 @@
 % case 1: This file must be a normal package
   \NeedsTeXFormat{pLaTeX2e}
   \ProvidesPackage{exppl2e}
-                [2018/12/02 v1.1c Experimental pLaTeX2e features]
+                [2019/09/16 v1.1d Experimental pLaTeX2e features]
   \PackageWarningNoLine{exppl2e}{%
       This is the unstable, experimental part of pLaTeX2e.\MessageBreak
       This package may contain:\MessageBreak
@@ -296,7 +296,7 @@
 % \cs{strut}$B$r=D?t<0%G%#%l%/%7%g%s$G;H$C$?>l9g$X$N=$@5!#(B
 %    \begin{macrocode}
 %% \strut $B$N2~NIHG(B
-\def\strut{\relax
+\DeclareRobustCommand\strut{\relax
   \iftdir
     \ifmdir
       %% [$B=D?t<0%G%#%l%/%7%g%s(B]
diff --git a/Master/texmf-dist/tex/platex/base/platexrelease.sty b/Master/texmf-dist/tex/platex/base/platexrelease.sty
index d522fa1ee87..ffd149cdd99 100644
--- a/Master/texmf-dist/tex/platex/base/platexrelease.sty
+++ b/Master/texmf-dist/tex/platex/base/platexrelease.sty
@@ -16,15 +16,16 @@
 %% 
 %% File: plvers.dtx
 \edef\p@known@latexreleaseversion
-   {2018-12-01}
+   {2019-10-01}
 \edef\platexreleaseversion
-   {2019-04-06}
+   {2019-10-01}
 \newif\if@plincludeinrelease
 \@plincludeinreleasefalse
 \def\plIncludeInRelease#1{%
   \if@plincludeinrelease
     \PackageError{platexrelease}
-      {mis-matched \string\plIncludeInRelease}{}%
+      {mis-matched \string\plIncludeInRelease}%
+      {There is an \string\plEndIncludeRelease\space missing}%
     \@plincludeinreleasefalse
   \fi
   \kernel@ifnextchar[%
@@ -63,7 +64,7 @@
   #2#3\@end@check@plIncludeInRelease{%
   \ifx\@check@plIncludeInRelease#2\else
     \PackageError{platexrelease}
-      {skipped \string\plIncludeInRelease}{}%
+      {skipped \string\plIncludeInRelease\space for tag \string#2}{}%
   \fi}
 %% File: platexrelease.dtx
 \NeedsTeXFormat{pLaTeX2e}
@@ -133,6 +134,7 @@ of this package available from CTAN}
       some critical bugs. We advise you to\MessageBreak
       select another format date}
 \plIncludeInRelease{2017/10/28}{\PackageWarning}{pLaTeX Info}%
+  % * <2019-10-01>
   % * <2019-04-06>
   % * <2018-12-01>
   % * <2018-07-28>+1
@@ -196,13 +198,22 @@ of this package available from CTAN}
 \let\ystrutbox\@undefined
 \plEndIncludeInRelease
 \plIncludeInRelease{2017/04/08}{\strutbox}
-                   {Add \strutbox}%
+                   {Macro definition of \strutbox}%
 \def\strutbox{\iftdir\tstrutbox\else\ystrutbox\fi}
 \plEndIncludeInRelease
 \plIncludeInRelease{0000/00/00}{\strutbox}
-                   {Add \strutbox}%
+                   {LaTeX2e original}%
 \newbox\strutbox % emulation purpose only
 \plEndIncludeInRelease
+\plIncludeInRelease{2019/10/01}{\strut}
+                   {Make robust}%
+\DeclareRobustCommand\strut{\relax
+  \iftdir
+    \ifmmode\copy\tstrutbox\else\unhcopy\tstrutbox\fi
+  \else
+    \ifmmode\copy\ystrutbox\else\unhcopy\ystrutbox\fi
+  \fi}
+\plEndIncludeInRelease
 \plIncludeInRelease{2017/04/08}{\strut}
                    {Use \ystrutbox}%
 \def\strut{\relax
@@ -211,24 +222,49 @@ of this package available from CTAN}
   \else
     \ifmmode\copy\tstrutbox\else\unhcopy\tstrutbox\fi
   \fi}
+\expandafter \let \csname strut \endcsname \@undefined
 \plEndIncludeInRelease
 \plIncludeInRelease{0000/00/00}{\strut}
-                   {Use \ystrutbox}%
+                   {ASCII Corporation original}%
 \def\strut{\relax
   \ifydir
     \ifmmode\copy\strutbox\else\unhcopy\strutbox\fi
   \else
     \ifmmode\copy\tstrutbox\else\unhcopy\tstrutbox\fi
   \fi}
+\expandafter \let \csname strut \endcsname \@undefined
+\plEndIncludeInRelease
+\plIncludeInRelease{2019/10/01}{\tstrut}
+                   {Make robust}%
+\DeclareRobustCommand\tstrut{\relax\hbox{\tate
+   \ifmmode\copy\tstrutbox\else\unhcopy\tstrutbox\fi}}
+\DeclareRobustCommand\zstrut{\relax\hbox{\tate
+   \ifmmode\copy\zstrutbox\else\unhcopy\zstrutbox\fi}}
+\plEndIncludeInRelease
+\plIncludeInRelease{0000/00/00}{\tstrut}
+                   {ASCII Corporation original}%
+\def\tstrut{\relax\hbox{\tate
+   \ifmmode\copy\tstrutbox\else\unhcopy\tstrutbox\fi}}
+\def\zstrut{\relax\hbox{\tate
+   \ifmmode\copy\zstrutbox\else\unhcopy\zstrutbox\fi}}
+\expandafter \let \csname tstrut \endcsname \@undefined
+\expandafter \let \csname zstrut \endcsname \@undefined
+\plEndIncludeInRelease
+\plIncludeInRelease{2019/10/01}{\ystrut}
+                   {Make robust}%
+\DeclareRobustCommand\ystrut{\relax\hbox{\yoko
+    \ifmmode\copy\ystrutbox\else\unhcopy\ystrutbox\fi}}
 \plEndIncludeInRelease
 \plIncludeInRelease{2017/04/08}{\ystrut}
                    {Add \ystrut}%
 \def\ystrut{\relax\hbox{\yoko
     \ifmmode\copy\ystrutbox\else\unhcopy\ystrutbox\fi}}
+\expandafter \let \csname ystrut \endcsname \@undefined
 \plEndIncludeInRelease
 \plIncludeInRelease{0000/00/00}{\ystrut}
                    {Add \ystrut}%
 \let\ystrut\@undefined
+\expandafter \let \csname ystrut \endcsname \@undefined
 \plEndIncludeInRelease
 \plIncludeInRelease{2018/04/01}{\DeclareFontEncoding@}
                    {UTF-8 Encoding}%
@@ -279,7 +315,7 @@ of this package available from CTAN}
 \fi
 \plEndIncludeInRelease
 \plIncludeInRelease{0000/00/00}{\DeclareFontEncoding@}
-                   {UTF-8 Encoding}%
+                   {ASCII Corporation original}%
 \def\DeclareFontEncoding@#1#2#3{%
   \expandafter
   \ifx\csname T@#1\endcsname\relax
@@ -299,6 +335,43 @@ of this package available from CTAN}
   }
 \let\DeclareFontEncoding@saved\@undefined
 \plEndIncludeInRelease
+\plIncludeInRelease{2019/10/01}{\DeclareErrorKanjiFont}
+                   {No side effects please}%
+\def\DeclareErrorKanjiFont#1#2#3#4#5{%
+   \xdef\error@kfontshape{%
+      \noexpand\expandafter\noexpand\split@name\noexpand\string
+      \expandafter\noexpand\csname#1/#2/#3/#4/#5\endcsname
+      \noexpand\@nil}%
+   \gdef\default@k@family{#2}%
+   \gdef\default@k@series{#3}%
+   \gdef\default@k@shape{#4}%
+   }
+\plEndIncludeInRelease
+\plIncludeInRelease{0000/00/00}{\DeclareErrorKanjiFont}
+                   {ASCII Corporation original}%
+\def\DeclareErrorKanjiFont#1#2#3#4#5{%
+   \xdef\error@kfontshape{%
+      \noexpand\expandafter\noexpand\split@name\noexpand\string
+      \expandafter\noexpand\csname#1/#2/#3/#4/#5\endcsname
+      \noexpand\@nil}%
+   \gdef\default@k@family{#2}%
+   \gdef\default@k@series{#3}%
+   \gdef\default@k@shape{#4}%
+   \global\let\k@family\default@k@family
+   \global\let\k@series\default@k@series
+   \global\let\k@shape\default@k@shape
+   \gdef\f@size{#5}%
+   \gdef\f@baselineskip{#5pt}}
+\plEndIncludeInRelease
+\plIncludeInRelease{2019/10/01}{\userelfont}
+                   {Make robust}%
+\DeclareRobustCommand\userelfont{\@knjcmdtrue}
+\plEndIncludeInRelease
+\plIncludeInRelease{0000/00/00}{\userelfont}
+                   {ASCII Corporation original}%
+\def\userelfont{\@knjcmdtrue}
+\expandafter \let \csname userelfont \endcsname \@undefined
+\plEndIncludeInRelease
 \plIncludeInRelease{2017/04/08}{\set@fontsize}
                    {Construct \ystrutbox}%
 \def\set@fontsize#1#2#3{%
@@ -325,7 +398,7 @@ of this package available from CTAN}
         \let\size@update\relax}}
 \plEndIncludeInRelease
 \plIncludeInRelease{0000/00/00}{\set@fontsize}
-                   {Construct \ystrutbox}%
+                   {ASCII Corporation original}%
 \def\set@fontsize#1#2#3{%
     \@defaultunits\@tempdimb#2pt\relax\@nnil
     \edef\f@size{\strip@pt\@tempdimb}%
@@ -349,6 +422,27 @@ of this package available from CTAN}
                 \@height.7\baselineskip \@depth.3\baselineskip}%
         \let\size@update\relax}}
 \plEndIncludeInRelease
+\plIncludeInRelease{2019/10/01}{\adjustbaseline}
+                   {Make robust}%
+\DeclareRobustCommand\adjustbaseline{%
+    \setbox\adjust@box\hbox{\char\jis"3441}%"
+    \cht\ht\adjust@box
+    \cdp\dp\adjust@box
+    \cwd\wd\adjust@box
+    \cvs\normalbaselineskip
+    \chs\cwd
+    \cHT\cht \advance\cHT\cdp
+  \iftdir
+    \setbox\adjust@box\hbox{\tbaselineshift\z@ M}%
+    \adjust@dimen\ht\adjust@box
+    \advance\adjust@dimen\dp\adjust@box
+    \advance\adjust@dimen-\cHT
+    \divide\adjust@dimen\tw@
+    \advance\adjust@dimen\cdp
+    \advance\adjust@dimen-\dp\adjust@box
+    \tbaselineshift\adjust@dimen
+  \fi}
+\plEndIncludeInRelease
 \plIncludeInRelease{2017/07/29}{\adjustbaseline}
                    {Change zenkaku reference}%
 \def\adjustbaseline{%
@@ -369,9 +463,10 @@ of this package available from CTAN}
     \advance\adjust@dimen-\dp\adjust@box
     \tbaselineshift\adjust@dimen
   \fi}
+\expandafter \let \csname adjustbaseline \endcsname \@undefined
 \plEndIncludeInRelease
 \plIncludeInRelease{0000/00/00}{\adjustbaseline}
-                   {Change zenkaku reference}%
+                   {ASCII Corporation original}%
 \def\adjustbaseline{%
     \setbox\adjust@box\hbox{\char\euc"A1A1}%"
     \cht\ht\adjust@box
@@ -390,6 +485,42 @@ of this package available from CTAN}
     \advance\adjust@dimen-\dp\adjust@box
     \tbaselineshift\adjust@dimen
   \fi}
+\expandafter \let \csname adjustbaseline \endcsname \@undefined
+\plEndIncludeInRelease
+\plIncludeInRelease{2019/10/01}{\usefont}
+                   {Make robust}%
+\DeclareRobustCommand\usekanji[4]{%
+    \kanjiencoding{#1}\kanjifamily{#2}\kanjiseries{#3}\kanjishape{#4}%
+    \selectfont\ignorespaces}
+\DeclareRobustCommand\useroman[4]{%
+    \romanencoding{#1}\romanfamily{#2}\romanseries{#3}\romanshape{#4}%
+    \selectfont\ignorespaces}
+\DeclareRobustCommand\usefont[4]{%
+  \edef\tmp@item{{#1}}%
+  \expandafter\expandafter\expandafter
+  \inlist@\expandafter\tmp@item\expandafter{\kenc@list}%
+  \ifin@ \usekanji{#1}{#2}{#3}{#4}%
+  \else\useroman{#1}{#2}{#3}{#4}%
+  \fi}
+\plEndIncludeInRelease
+\plIncludeInRelease{0000/00/00}{\usefont}
+                   {ASCII Corporation original}%
+\def\usekanji#1#2#3#4{%
+    \kanjiencoding{#1}\kanjifamily{#2}\kanjiseries{#3}\kanjishape{#4}%
+    \selectfont\ignorespaces}
+\def\useroman#1#2#3#4{%
+    \romanencoding{#1}\romanfamily{#2}\romanseries{#3}\romanshape{#4}%
+    \selectfont\ignorespaces}
+\def\usefont#1#2#3#4{%
+  \edef\tmp@item{{#1}}%
+  \expandafter\expandafter\expandafter
+  \inlist@\expandafter\tmp@item\expandafter{\kenc@list}%
+  \ifin@ \usekanji{#1}{#2}{#3}{#4}%
+  \else\useroman{#1}{#2}{#3}{#4}%
+  \fi}
+\expandafter \let \csname usekanji \endcsname \@undefined
+\expandafter \let \csname useroman \endcsname \@undefined
+\expandafter \let \csname usefont \endcsname \@undefined
 \plEndIncludeInRelease
 \plIncludeInRelease{2017/04/08}{\textunderscore}
                    {Baseline shift for \textunderscore}%
@@ -401,7 +532,7 @@ of this package available from CTAN}
   \vbox{\hrule\@width.3em}}
 \plEndIncludeInRelease
 \plIncludeInRelease{0000/00/00}{\textunderscore}
-                   {Baseline shift for \textunderscore}%
+                   {ASCII Corporation original}%
 \DeclareTextCommandDefault{\textunderscore}{%
   \leavevmode\kern.06em
   \iftdir\raise-\tbaselineshift\fi
@@ -510,7 +641,7 @@ of this package available from CTAN}
 \let\pltx@isletter\@undefined
 \plEndIncludeInRelease
 \plIncludeInRelease{2016/06/10}{\@text@composite}
-                   {Fix for non-zero baselineshift (wrong)}%
+                   {Fix for non-zero baselineshift (revert)}%
 \def\@text@composite#1#2#3\@text@composite{%
    \expandafter\@text@composite@x
       \csname\string#1-\string#2\endcsname}
@@ -525,7 +656,7 @@ of this package available from CTAN}
   \csname\string#1-\string#2\endcsname}
 \plEndIncludeInRelease
 \plIncludeInRelease{0000/00/00}{\@text@composite}
-                   {Fix for non-zero baselineshift (wrong)}%
+                   {LaTeX2e original}%
 \def\@text@composite#1#2#3\@text@composite{%
    \expandafter\@text@composite@x
       \csname\string#1-\string#2\endcsname}
@@ -728,7 +859,7 @@ of this package available from CTAN}
 }
 \plEndIncludeInRelease
 \plIncludeInRelease{0000/00/00}{\check@nocorr@}
-                   {Italic correction before \textt...}%
+                   {ASCII Corporation original}%
 \def \check@nocorr@ #1#2\nocorr#3\@nil {%
   \let \check@icl \relax % changed from \maybe@ic
   \def \check@icr {\ifvmode \else \aftergroup \maybe@ic \fi}%
@@ -777,7 +908,7 @@ of this package available from CTAN}
 \fi
 \plEndIncludeInRelease
 \plIncludeInRelease{0000/00/00}{\<}
-                   {\inhibitglue in vertical mode}%
+                   {ASCII Corporation original}%
 \def\<{\inhibitglue}
 \plEndIncludeInRelease
 %% File: plcore.dtx
@@ -1400,12 +1531,20 @@ of this package available from CTAN}
   \let\firstmark\botmark
 }
 \plEndIncludeInRelease
+\plIncludeInRelease{2019/10/01}{\AtBeginDvi}
+                   {Make robust}%
+\DeclareRobustCommand \AtBeginDvi [1]{%
+  \global \setbox \@begindvibox
+    \vbox{\yoko \unvbox \@begindvibox #1}%
+}
+\plEndIncludeInRelease
 \plIncludeInRelease{2016/07/01}{\AtBeginDvi}
                    {Fix for incompatible direction}%
 \def \AtBeginDvi #1{%
   \global \setbox \@begindvibox
     \vbox{\yoko \unvbox \@begindvibox #1}%
 }
+\expandafter \let \csname AtBeginDvi \endcsname \@undefined
 \plEndIncludeInRelease
 \plIncludeInRelease{0000/00/00}{\AtBeginDvi}
                    {LaTeX2e original}%
@@ -1413,6 +1552,7 @@ of this package available from CTAN}
   \global \setbox \@begindvibox
     \vbox{\unvbox \@begindvibox #1}%
 }
+\expandafter \let \csname AtBeginDvi \endcsname \@undefined
 \plEndIncludeInRelease
 \plIncludeInRelease{2016/04/17}{\@makefnmark}
                    {Remove extra \xkanjiskip}%
@@ -1865,12 +2005,20 @@ of this package available from CTAN}
     \if@pboxsw \m@th$\fi
   \@end@tempboxa}
 \plEndIncludeInRelease
+\plIncludeInRelease{2019/10/01}{\underline}
+                   {Make robust}%
+\DeclareRobustCommand\underline[1]{%
+  \relax
+  \ifmmode\@@underline{#1}%
+  \else \leavevmode\null$\@@underline{\hbox{#1}}\m@th$\null\relax\fi}
+\plEndIncludeInRelease
 \plIncludeInRelease{2016/04/17}{\underline}
                    {Remove extra \xkanjiskip}%
 \def\underline#1{%
   \relax
   \ifmmode\@@underline{#1}%
   \else \leavevmode\null$\@@underline{\hbox{#1}}\m@th$\null\relax\fi}
+\expandafter \let \csname underline \endcsname \@undefined
 \plEndIncludeInRelease
 \plIncludeInRelease{0000/00/00}{\underline}
                    {LaTeX2e original}%
@@ -1878,6 +2026,7 @@ of this package available from CTAN}
   \relax
   \ifmmode\@@underline{#1}%
   \else $\@@underline{\hbox{#1}}\m@th$\relax\fi}
+\expandafter \let \csname underline \endcsname \@undefined
 \plEndIncludeInRelease
 \plIncludeInRelease{2018/03/09}%
                    {\e@alloc@chardef}{Extended Allocation (FAM256)}%
diff --git a/Master/texmf-dist/tex/platex/base/plcore.ltx b/Master/texmf-dist/tex/platex/base/plcore.ltx
index b8237ce7aa9..3dcc6d0e942 100644
--- a/Master/texmf-dist/tex/platex/base/plcore.ltx
+++ b/Master/texmf-dist/tex/platex/base/plcore.ltx
@@ -33,7 +33,7 @@
 \fi
 \def\pfmtname{pLaTeX2e}
 \def\pfmtversion
-   {2019-04-06}
+   {2019-10-01}
 \def\ppatch@level{0}
 \edef\platexBANNER{\noexpand\platexNILa
                    \the\everyjob % LaTeX banner and delayed codes
@@ -69,7 +69,8 @@
 \def\plIncludeInRelease#1{%
   \if@plincludeinrelease
     \PackageError{platexrelease}
-      {mis-matched \string\plIncludeInRelease}{}%
+      {mis-matched \string\plIncludeInRelease}%
+      {There is an \string\plEndIncludeRelease\space missing}%
     \@plincludeinreleasefalse
   \fi
   \kernel@ifnextchar[%
@@ -108,7 +109,7 @@
   #2#3\@end@check@plIncludeInRelease{%
   \ifx\@check@plIncludeInRelease#2\else
     \PackageError{platexrelease}
-      {skipped \string\plIncludeInRelease}{}%
+      {skipped \string\plIncludeInRelease\space for tag \string#2}{}%
   \fi}
 %% File: plfonts.dtx
 \let\k@encoding\@empty
@@ -152,17 +153,17 @@
 \newbox\zstrutbox
 \newbox\ystrutbox
 \def\strutbox{\iftdir\tstrutbox\else\ystrutbox\fi}
-\def\strut{\relax
-  \ifydir
-    \ifmmode\copy\ystrutbox\else\unhcopy\ystrutbox\fi
-  \else
+\DeclareRobustCommand\strut{\relax
+  \iftdir
     \ifmmode\copy\tstrutbox\else\unhcopy\tstrutbox\fi
+  \else
+    \ifmmode\copy\ystrutbox\else\unhcopy\ystrutbox\fi
   \fi}
-\def\tstrut{\relax\hbox{\tate
+\DeclareRobustCommand\tstrut{\relax\hbox{\tate
    \ifmmode\copy\tstrutbox\else\unhcopy\tstrutbox\fi}}
-\def\zstrut{\relax\hbox{\tate
+\DeclareRobustCommand\zstrut{\relax\hbox{\tate
    \ifmmode\copy\zstrutbox\else\unhcopy\zstrutbox\fi}}
-\def\ystrut{\relax\hbox{\yoko
+\DeclareRobustCommand\ystrut{\relax\hbox{\yoko
     \ifmmode\copy\ystrutbox\else\unhcopy\ystrutbox\fi}}
 \def\DeclareFontEncoding{%
   \begingroup
@@ -350,6 +351,7 @@
                            \def\default@series{#3}%
                            \def\default@shape{#4}}%
   \fi}
+\@onlypreamble\DeclareKanjiSubstitution
 \def\DeclareErrorKanjiFont#1#2#3#4#5{%
    \xdef\error@kfontshape{%
       \noexpand\expandafter\noexpand\split@name\noexpand\string
@@ -358,12 +360,7 @@
    \gdef\default@k@family{#2}%
    \gdef\default@k@series{#3}%
    \gdef\default@k@shape{#4}%
-   \global\let\k@family\default@k@family
-   \global\let\k@series\default@k@series
-   \global\let\k@shape\default@k@shape
-   \gdef\f@size{#5}%
-   \gdef\f@baselineskip{#5pt}}
-\@onlypreamble\DeclareKanjiSubstitution
+   }
 \@onlypreamble\DeclareErrorKanjiFont
 \def\DeclareFixedFont#1#2#3#4#5#6{%
    \begingroup
@@ -460,7 +457,7 @@
   \fi
 }
 \newif\if@knjcmd
-\def\userelfont{\@knjcmdtrue}
+\DeclareRobustCommand\userelfont{\@knjcmdtrue}
 \DeclareRobustCommand\selectfont{%
   \let\tmp@error@fontshape\error@fontshape
   \let\error@fontshape\error@kfontshape
@@ -538,7 +535,7 @@
         \let\size@update\relax}}
 \newbox\adjust@box
 \newdimen\adjust@dimen
-\def\adjustbaseline{%
+\DeclareRobustCommand\adjustbaseline{%
     \setbox\adjust@box\hbox{\char\jis"3441}%"
     \cht\ht\adjust@box
     \cdp\dp\adjust@box
@@ -685,13 +682,13 @@
 \DeclareRobustCommand\romanshape[1]{\edef\f@shape{#1}}
 \DeclareRobustCommand\kanjishape[1]{\edef\k@shape{#1}}
 \DeclareRobustCommand\fontshape[1]{\kanjishape{#1}\romanshape{#1}}
-\def\usekanji#1#2#3#4{%
+\DeclareRobustCommand\usekanji[4]{%
     \kanjiencoding{#1}\kanjifamily{#2}\kanjiseries{#3}\kanjishape{#4}%
     \selectfont\ignorespaces}
-\def\useroman#1#2#3#4{%
+\DeclareRobustCommand\useroman[4]{%
     \romanencoding{#1}\romanfamily{#2}\romanseries{#3}\romanshape{#4}%
     \selectfont\ignorespaces}
-\def\usefont#1#2#3#4{%
+\DeclareRobustCommand\usefont[4]{%
   \edef\tmp@item{{#1}}%
   \expandafter\expandafter\expandafter
   \inlist@\expandafter\tmp@item\expandafter{\kenc@list}%
@@ -1142,7 +1139,7 @@
   \stepcounter{page}%
   \let\firstmark\botmark
 }
-\def \AtBeginDvi #1{%
+\DeclareRobustCommand \AtBeginDvi [1]{%
   \global \setbox \@begindvibox
     \vbox{\yoko \unvbox \@begindvibox #1}%
 }
@@ -1305,7 +1302,7 @@
        \csname bm@#3\endcsname}%
     \if@pboxsw \m@th$\null\fi% !!!
   \@end@tempboxa}
-\def\underline#1{%
+\DeclareRobustCommand\underline[1]{%
   \relax
   \ifmmode\@@underline{#1}%
   \else \leavevmode\null$\@@underline{\hbox{#1}}\m@th$\null\relax\fi}
diff --git a/Master/texmf-dist/tex/platex/base/pldefs.ltx b/Master/texmf-dist/tex/platex/base/pldefs.ltx
index 8e9db2bb726..7612c6a0499 100644
--- a/Master/texmf-dist/tex/platex/base/pldefs.ltx
+++ b/Master/texmf-dist/tex/platex/base/pldefs.ltx
@@ -14,9 +14,13 @@
 %% 
 %% File: plfonts.dtx
 \ProvidesFile{pldefs.ltx}
-      [2018/02/04 v1.6l pLaTeX Kernel (Default settings)]
+      [2019/09/16 v1.6t pLaTeX Kernel (Default settings)]
 \DeclareKanjiEncodingDefaults{}{}
 \DeclareErrorKanjiFont{JY1}{mc}{m}{n}{10}
+\kanjifamily{mc}
+\kanjiseries{m}
+\kanjishape{n}
+\fontsize{10}{10}
 \DeclareYokoKanjiEncoding{JY1}{}{}
 \DeclareKanjiSubstitution{JY1}{mc}{m}{n}
 \DeclareTateKanjiEncoding{JT1}{}{}
diff --git a/Master/texmf-dist/tex/platex/base/plext.sty b/Master/texmf-dist/tex/platex/base/plext.sty
index bfab42a6416..e69f58c05a8 100644
--- a/Master/texmf-dist/tex/platex/base/plext.sty
+++ b/Master/texmf-dist/tex/platex/base/plext.sty
@@ -15,7 +15,7 @@
 %% File: plext.dtx
 \NeedsTeXFormat{pLaTeX2e}
 \ProvidesPackage{plext}
-   [2018/10/07 v1.2k pLaTeX package file (community edition)]
+   [2019/09/29 v1.2l pLaTeX package file (community edition)]
 \newif\if@rotsw
 \def\array{\let\@acol\@arrayacol \let\@classz\@arrayclassz
   \let\@classiv\@arrayclassiv
@@ -538,7 +538,7 @@
 \def\@Kanji#1{\kansuji #1}
 \def\kanji{\iftdir\expandafter\kansuji\fi}
 \def\boutenchar{\char\euc"A1A2}
-\def\bou#1{\ifvmode\leavevmode\fi\@bou#1\end}
+\DeclareRobustCommand\bou[1]{\ifvmode\leavevmode\fi\@bou#1\end}
 \def\@bou#1{%
   \ifx#1\end \let\next=\relax
   \else
@@ -557,7 +557,7 @@
     \fi
     \let\next=\@bou
   \fi\next}
-\def\kasen#1{%
+\DeclareRobustCommand\kasen[1]{%
   \ifydir\underline{#1}%
   \else\if@rotsw\underline{#1}\else
     \setbox\z@\hbox{#1}\leavevmode\raise.7zw
diff --git a/Master/texmf-dist/tex/platex/base/ptrace.sty b/Master/texmf-dist/tex/platex/base/ptrace.sty
index 7f7d3836922..45d5ecd800d 100644
--- a/Master/texmf-dist/tex/platex/base/ptrace.sty
+++ b/Master/texmf-dist/tex/platex/base/ptrace.sty
@@ -15,7 +15,7 @@
 %% File: plfonts.dtx
 \NeedsTeXFormat{pLaTeX2e}
 \ProvidesPackage{ptrace}
-     [2017/08/05 v1.6h Standard pLaTeX package (font tracing)]
+     [2019/09/16 v1.6t Standard pLaTeX package (font tracing)]
 \RequirePackageWithOptions{tracefnt}
 \DeclareRobustCommand\selectfont{%
   \let\tmp@error@fontshape\error@fontshape
@@ -108,7 +108,7 @@
         \let\size@update\relax}}
 \plEndIncludeInRelease
 \plIncludeInRelease{0000/00/00}{\set@fontsize}
-                   {Construct \ystrutbox}%
+                   {ASCII Corporation original}%
 \def\set@fontsize#1#2#3{%
     \@defaultunits\@tempdimb#2pt\relax\@nnil
     \edef\f@size{\strip@pt\@tempdimb}%
@@ -142,6 +142,30 @@
     \fi
         \let\size@update\relax}}
 \plEndIncludeInRelease
+\plIncludeInRelease{2019/10/01}{\adjustbaseline}
+                   {Make robust}%
+\DeclareRobustCommand\adjustbaseline{%
+    \setbox\adjust@box\hbox{\char\jis"3441}%"
+    \cht\ht\adjust@box
+    \cdp\dp\adjust@box
+    \cwd\wd\adjust@box
+    \cvs\normalbaselineskip
+    \chs\cwd
+    \cHT\cht \advance\cHT\cdp
+  \iftdir
+    \setbox\adjust@box\hbox{\tbaselineshift\z@ M}%
+    \adjust@dimen\ht\adjust@box
+    \advance\adjust@dimen\dp\adjust@box
+    \advance\adjust@dimen-\cHT
+    \divide\adjust@dimen\tw@
+    \advance\adjust@dimen\cdp
+    \advance\adjust@dimen-\dp\adjust@box
+    \tbaselineshift\adjust@dimen
+    \ifnum \tracingfonts>\tw@
+      \typeout{baselineshift:\the\tbaselineshift}%
+    \fi
+  \fi}
+\plEndIncludeInRelease
 \plIncludeInRelease{2017/07/29}{\adjustbaseline}
                    {Change zenkaku reference}%
 \def\adjustbaseline{%
@@ -165,9 +189,10 @@
       \typeout{baselineshift:\the\tbaselineshift}%
     \fi
   \fi}
+\expandafter \let \csname adjustbaseline \endcsname \@undefined
 \plEndIncludeInRelease
 \plIncludeInRelease{0000/00/00}{\adjustbaseline}
-                   {Change zenkaku reference}%
+                   {ASCII Corporation original}%
 \def\adjustbaseline{%
     \setbox\adjust@box\hbox{\char\euc"A1A1}%"
     \cht\ht\adjust@box
@@ -189,6 +214,7 @@
       \typeout{baselineshift:\the\tbaselineshift}
     \fi
   \fi}
+\expandafter \let \csname adjustbaseline \endcsname \@undefined
 \plEndIncludeInRelease
 \endinput
 %%