5 files changed, 27 insertions, 24 deletions
diff --git a/macros/xetex/generic/xetexko/ChangeLog b/macros/xetex/generic/xetexko/ChangeLog
index 7d5e352c58..b3e1634cea 100644
--- a/macros/xetex/generic/xetexko/ChangeLog
+++ b/macros/xetex/generic/xetexko/ChangeLog
@@ -1,3 +1,9 @@
+2024-03-01      Dohyun Kim <nomos at ktug org>
+
+	Version 4.3
+
+	* use e-type instead of x-type in EXPL code
+
 2022-11-01      Dohyun Kim <nomos at ktug org>
 
 	Version 4.2
diff --git a/macros/xetex/generic/xetexko/README b/macros/xetex/generic/xetexko/README
index 5d40215866..9e3648e152 100644
--- a/macros/xetex/generic/xetexko/README
+++ b/macros/xetex/generic/xetexko/README
@@ -1,4 +1,4 @@
-XeTeX-ko Package version 4.2 (2022/11/01)
+XeTeX-ko Package version 4.3 (2024/03/01)
 =========================================
 
 XeTeX-ko is a macro package for Xe(La)TeX which supports typesetting
diff --git a/macros/xetex/generic/xetexko/xetexko-doc.pdf b/macros/xetex/generic/xetexko/xetexko-doc.pdf
index 8b93d9d9f1..0c4e8d795f 100644
--- a/macros/xetex/generic/xetexko/xetexko-doc.pdf
+++ b/macros/xetex/generic/xetexko/xetexko-doc.pdf
diff --git a/macros/xetex/generic/xetexko/xetexko-doc.tex b/macros/xetex/generic/xetexko/xetexko-doc.tex
index 8e71d2514e..8eed817907 100644
--- a/macros/xetex/generic/xetexko/xetexko-doc.tex
+++ b/macros/xetex/generic/xetexko/xetexko-doc.tex
@@ -74,7 +74,7 @@
 \title{\xetexko\ 간단 매뉴얼}
 \author{Dohyun Kim \normalsize <\texttt{nomos at ktug org}> \and
   \normalsize <\url{http://github.com/dohyunkim/xetexko}>}
-\date{Version 4.2\quad 2022/11/01}
+\date{Version 4.3\quad 2024/03/01}
 \maketitle
 
 \begin{quote}\small
@@ -152,7 +152,7 @@ main/sans hangul/hanja 폰트에는 따로 \verb|Ligatures=TeX| 옵션을 지시
 
 \bigskip
 
-※ \vernote{3.1} 및 \vernote{3.4}부터 플레인텍에 주요 변경사항이 있다:
+※ \vernote{3.4}부터 플레인텍에 주요 변경사항이 있다:
 \begin{plaintex}
 플레인텍에서도 기본값으로 은바탕을 한글에 사용한다. 한글폰트를 지시하는 방법은 다음과 같다.
 \begin{verbatim}
@@ -160,16 +160,12 @@ main/sans hangul/hanja 폰트에는 따로 \verb|Ligatures=TeX| 옵션을 지시
     \hangulfont="[UnBatang]:mapping=tex-text" at 10pt
     \hanjafont ="Naver Dictionary:mapping=tex-text" at 10pt
 \end{verbatim}
-  \sout{그런데 3.1 버전부터는 이렇게 하면 문서 중간에 영문글꼴을 바꾸더라도
-  \cs{hangulfont} 선언시의 영문글꼴이 계속 적용되도록 바뀌었다.}
   또한 다음과 같은 새로운 명령을 제공한다.
 \begin{verbatim}
     \sethangulfont\untaza ="[UnTaza.ttf]"  at 10pt
     \sethanjafont \undotum="[UnDotum.ttf]" at 10pt
     \expandafter\def\expandafter\tt\expandafter{\tt\untaza\undotum}
 \end{verbatim}
-  \sout{이 경우 \cs{untaza}, \cs{undotum} 명령에 \cs{set...font} 실행시의 현재폰트 명령이
-  자동으로 포함된다. 뒤에서 설명할 글꼴옵션이 포함되는 것과 같은 개념이다.}
   그리하여 예의 \cs{tt} 명령으로 이제 한글, 한자, 영문 글꼴을 동시에 바꿀 수 있게 된다.
 \end{plaintex}
 
diff --git a/macros/xetex/generic/xetexko/xetexko.sty b/macros/xetex/generic/xetexko/xetexko.sty
index eb2861d7c4..982c05c117 100644
--- a/macros/xetex/generic/xetexko/xetexko.sty
+++ b/macros/xetex/generic/xetexko/xetexko.sty
@@ -1,6 +1,6 @@
 % xetexko.sty
 %
-% Copyright (c) 2013-2022 Dohyun Kim  <nomos at ktug org>
+% Copyright (c) 2013-2024 Dohyun Kim  <nomos at ktug org>
 %
 % This work may be distributed and/or modified under the
 % conditions of the LaTeX Project Public License, either version 1.3c
@@ -15,8 +15,8 @@
 \catcode`@=11
 
 \ifdefined\ProvidesPackage
-  \NeedsTeXFormat{LaTeX2e}[2021/06/01]
-  \ProvidesPackage{xetexko}[2022/11/01 v4.2 typesetting Korean with XeTeX]
+  \NeedsTeXFormat{LaTeX2e}[2021/11/15]
+  \ProvidesPackage{xetexko}[2024/03/01 v4.3 typesetting Korean with XeTeX]
 \else
   \ifdefined\@tempcnta\else \newcount\@tempcnta \fi
   \ifdefined\@sptoken \else
@@ -1137,7 +1137,7 @@
       \or \unkern\unkern \XeKo@latincjk       % SY AO
       \or \unkern\unkern                      % AA AO
       \or \unkern\unkern % AO AO
-      \or \unkern\unkern                      % AC AO
+      \or \unkern\unkern \inhibitglue         % AC AO
       \or \unkern\unkern                      % AP AO
       \or \unkern\unkern                      % AM AO
       \or \unkern\unkern                      % AH AO
@@ -2107,7 +2107,7 @@
 \cs_new:Nn \__xtxko_assign_font_opts:n
 {
   \tl_clear:N \l_xtxko_font_opts_tl
-  \keys_set_known:nxN { xtxko-font } {#1} \l_xtxko_rest_opts_tl
+  \keys_set_known:neN { xtxko-font } {#1} \l_xtxko_rest_opts_tl
 }
 \DeclareDocumentCommand \setmainhangulfont { O{} m O{} }
 {
@@ -2175,7 +2175,7 @@
     \fontencoding \g_fontspec_encoding_tl
     \exp_args:Nc \fontfamily { xetexko_user_family_ \cs_to_str:N #1 } \XeKo@selectfont
   }
-  \cs_set_nopar:cpx { xetexko_user_option_ \cs_to_str:N #1 }
+  \cs_set_nopar:cpe { xetexko_user_option_ \cs_to_str:N #1 }
   {
     \exp_not:o { \l_xtxko_font_opts_tl }
   }
@@ -2200,7 +2200,7 @@
     \fontencoding \g_fontspec_encoding_tl
     \fontfamily \xetexkohangulfontfamily \XeKo@selectfont
   }
-  \cs_set_nopar:Npx \xetexkohanguloption
+  \cs_set_nopar:Npe \xetexkohanguloption
   {
     \exp_not:o { \l_xtxko_font_opts_tl }
   }
@@ -2213,9 +2213,9 @@
   \group_begin:
   \fontseries\seriesdefault\fontshape\shapedefault \xetexkohangulfont
   \cs_set_eq:NN \l_xtxko_font_opts_tl \xetexkohanguloption
-  \keys_set_known:nxN { xtxko-font } { #1 } \l_xtxko_rest_opts_tl
+  \keys_set_known:neN { xtxko-font } { #1 } \l_xtxko_rest_opts_tl
   \addfontfeature { \l_xtxko_rest_opts_tl }
-  \use:x
+  \use:e
   {
     \group_end:
     \exp_not:N \cs_set_nopar:Npn \exp_not:N \xetexkohangulfont
@@ -2299,7 +2299,7 @@
     \fontencoding \g_fontspec_encoding_tl
     \exp_args:Nc \fontfamily { xetexko_user_family_ \cs_to_str:N #1 } \XeKo@selectfont
   }
-  \cs_set_nopar:cpx { xetexko_user_option_ \cs_to_str:N #1 }
+  \cs_set_nopar:cpe { xetexko_user_option_ \cs_to_str:N #1 }
   {
     \exp_not:o { \l_xtxko_font_opts_tl }
   }
@@ -2324,7 +2324,7 @@
     \fontencoding \g_fontspec_encoding_tl
     \fontfamily \xetexkohanjafontfamily \XeKo@selectfont
   }
-  \cs_set_nopar:Npx \xetexkohanjaoption
+  \cs_set_nopar:Npe \xetexkohanjaoption
   {
     \exp_not:o { \l_xtxko_font_opts_tl }
   }
@@ -2337,9 +2337,9 @@
   \group_begin:
   \fontseries\seriesdefault\fontshape\shapedefault \xetexkohanjafont
   \cs_set_eq:NN \l_xtxko_font_opts_tl \xetexkohanjaoption
-  \keys_set_known:nxN { xtxko-font } { #1 } \l_xtxko_rest_opts_tl
+  \keys_set_known:neN { xtxko-font } { #1 } \l_xtxko_rest_opts_tl
   \addfontfeature { \l_xtxko_rest_opts_tl }
-  \use:x
+  \use:e
   {
     \group_end:
     \exp_not:N \cs_set_nopar:Npn \exp_not:N \xetexkohanjafont
@@ -2462,8 +2462,10 @@
   \ifdefined\XeKo@hanja@font\else
     \let\XeKo@hanja@font    \XeKo@hangul@font
   \fi
-  \@ifpackageloaded{ulem}{\xetexkoulemsupport}{}
-  \@ifpackageloaded{hyperref}{\pdfstringdefDisableCommands{%
+  }
+
+\AddToHook{package/ulem/after}{\xetexkoulemsupport}
+\AddToHook{package/hyperref/after}{\pdfstringdefDisableCommands{%
     \let\hangulalphs\relax
     \let\hangulnums\relax
     \let\hangulparens\relax
@@ -2532,8 +2534,7 @@
     \def\라{라}%
     \def\으{으}%
     \def\로{로}%
-    \def\hellipsis{...}}}{}
-  }
+    \def\hellipsis{...}}}
 
 \newif\if@hangul
 \newif\if@hanja