% This is the file CJKulem.sty of the CJK package
%   for using the `ulem' package CJK characters.
%
% created by Werner Lemberg <wl@gnu.org>
%
% Version 4.8.5 (16-Oct-2021)

% Copyright (C) 1994-2021  Werner Lemberg <wl@gnu.org>
%
% This program is free software; you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation; either version 2 of the License, or
% (at your option) any later version.
%
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with this program in doc/COPYING; if not, write to the Free
% Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
% MA 02110-1301 USA

\NeedsTeXFormat{LaTeX2e}[1996/12/01]
\def\fileversion{4.8.5}
\def\filedate{2021/10/16}
\ProvidesPackage{CJKulem}[\filedate\space\fileversion]

\RequirePackage{ulem}[2000/05/26]

\endlinechar \m@ne

\newdimen\UL@lastkern
\newskip\CJK@skip


\def\UL@CJKnobreakglue{
  \nobreak
  \LA@CJKglue
  \nobreak}


\def\UL@CJKglue{
  \ifx\ \LA@space
    \LA@CJKglue
  \else
    \egroup
    \UL@stop
    \ifnum\lastkern = \thr@@
      \LA@hskip \CJK@skip
    \else
      \global\UL@skip \CJK@skip
      \UL@leaders
    \fi
    \UL@start
    \bgroup
  \fi}


\def\UL@Thaiglue{
  \ifx\ \LA@space
    \LA@Thaiglue
  \else
    \egroup
    \egroup
    \egroup
    \UL@stop
    \ifnum\lastkern = \thr@@
      \LA@hskip \CJK@skip
    \else
      \global\UL@skip \CJK@skip
      \UL@leaders
    \fi
    \UL@start
    \bgroup
    \fontencoding{C90}\selectfont
    \bgroup
    \bgroup
  \fi}


\def\UL@Thaibreak{
  \ifx\ \LA@space
    \LA@Thaibreak
  \else
    \egroup
    \egroup
    \egroup
    \UL@stop
    \LA@hskip \z@
    \UL@start
    \bgroup
    \fontencoding{C90}\selectfont
    \bgroup
    \bgroup
  \fi}


\def\UL@testLastKern{
  \global\CJK@false
  \ifnum\lastkern = \thr@@
    \ifnum\UL@lastkern = \tw@
      \global\CJK@true
    \fi
    \ifnum\UL@lastkern = 5
      \global\CJK@true
    \fi
  \fi

  \ifnum\lastkern = \tw@
    \global\CJK@true
  \fi
  \ifnum\lastkern = 5
    \global\CJK@true
  \fi}


\def\UL@testLastCJK{
  \global\CJK@false

  \ifnum\lastkern = \thr@@
    \ifnum\UL@lastkern = \@ne
      \global\CJK@true
    \fi
  \fi

  \ifnum\lastkern = \@ne
    \global\CJK@true
  \fi}


\addto@hook\UL@hook{
  \let\CJK@savehskip \hskip
  \let\hskip \LA@hskip
  \CJKglue
  \CJK@skip\lastskip
  \unskip
  \let\hskip \CJK@savehskip
  \let\LA@CJKglue \CJKglue
  \let\LA@Thaiglue \Thaiglue
  \let\LA@Thaibreak \Thaibreak
  \let\CJK@nobreakglue \UL@CJKnobreakglue
  \let\CJKglue \UL@CJKglue
  \let\Thaiglue \UL@Thaiglue
  \let\Thaibreak \UL@Thaibreak
  \let\CJK@testLastKern \UL@testLastKern
  \let\CJK@testLastCJK \UL@testLastCJK}


\def\UL@start{
  \global\UL@lastkern\lastkern
  \setbox\UL@box\hbox\bgroup
    \everyhbox{\UL@hrest}
    \let\UL@start\@empty
    \def\UL@unegroup{\bgroup\bgroup}
    \let\UL@leadtype\@empty
    \bgroup
      \kern -3sp
      \kern 3sp
      \if@ignore
        \global\@ignorefalse
        \ignorespaces
      \fi}


\def\UL@stop{
  \global\UL@pe\lastpenalty
  \global\UL@lastkern\lastkern
  \unpenalty
  \ifnum\lastkern = \thr@@
    \egroup
    \egroup
    \ifdim\wd\UL@box = \z@
    \else
      \UL@putbox
    \fi
  \else
    \egroup
    \egroup
    \UL@putbox
  \fi
  \ifnum\UL@pe = \z@
  \else
    \LA@penalty\UL@pe
  \fi
  \kern -\UL@lastkern
  \kern \UL@lastkern
  \UL@unegroup}

\endlinechar `\^^M

\endinput
