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%% File `dhucs-interword.sty`
%%
%% (C) Copyright 2007-2013 Kangsoo Kim <karnes at ktug org>
%%
%% This work may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%% The latest version of this license is in
%%  http://www.latex-project.org/lppl.txt
%% and version 1.3c or later is part of all distributions of LaTeX
%% version 2006/05/20 or later.
%%
\ProvidesPackage{dhucs-interword}[2009/03/15]
\RequirePackage{dhucs}

\newif\if@HWP\@HWPfalse
\DeclareOption{HWP}{\@HWPtrue\let\dhucs@interhchar\z@\HWPinterwordskip}
\newif\if@default\@defaultfalse
\DeclareOption{default}{\@defaulttrue\@nonfrenchtrue\DEFAULTskips}
\newif\if@nonfrench\@nonfrenchfalse
\DeclareOption{nonfrench}{\@nonfrenchtrue}
\DeclareOption{wider}{\widerhangul}
\DeclareOption{narrower}{\narrowerhangul}
%\DeclareOption*{\DEFAULTskips}

\newdimen\dimen@skip
\dimen@skip=\f@size\p@

%\let\dhucs@interhchar\setInterHangulSkip
\newcommand\interHchar[1]{\setInterHangulSkip{#1}}
\let\interhchar\interHchar

%% finemath active
\if@dhucsfinemath\else\@dhucsfinemathtrue\fi

\newcommand\interhword[4][\@empty]{%
    \ifx#1\@empty\setinterwordskip{#2}{#3}{#4}\else\setinterwordskip[#1]{#2}{#3}{#4}\fi
}

\def\narrowerhangul{%
	\interHchar{-.75pt}%
}
\def\widerhangul{%
	\interHchar{1pt}%
}

\def\setinterwordskip{\@ifnextchar[\setinterwordskip@\setinterwordskip@@}
\def\setinterwordskip@[#1]#2#3#4{%
  \spaceskip = #2\dimen@skip plus #3\dimen@skip minus #4\dimen@skip
  \xspaceskip = #1\dimen@skip plus #3\dimen@skip minus #4\dimen@skip
}
\def\setinterwordskip@@#1#2#3{%
  \spaceskip = #1\dimen@skip plus #2\dimen@skip minus #3\dimen@skip
}

\def\HWPinterwordskip{%
  \let\dhucs@interhchar\z@
  \if@nonfrench
     \interhword[.6]{.475}{.111}{.111}%
  \else
     \interhword{.475}{.111}{.111}%
  \fi
}

\def\DEFAULTskips{%
%  \let\dhucs@interhchar\z@
  \interHchar{-.5pt}%
  \if@nonfrench
     \interhword[.55]{.413}{.11}{.1}%
  \else
     \interhword{.413}{.11}{.1}%
  \fi
}

\ProcessOptions\relax

\if@default
\AtEndOfPackage{%
\def\ucsfninterwordhook{%
%    \let\dhucs@interhchar\z@
    \interHchar{-.55pt}%
    \if@nonfrench
       \interhword[.5]{.303}{.11}{.1}%
    \else
       \interhword{.303}{.11}{.1}%
    \fi
}}\else
\if@HWP
\AtEndOfPackage{%
\def\ucsfninterwordhook{%
    \let\dhucs@interhchar\z@
    \if@nonfrench
        \interhword[.55]{.331}{.133}{.1}%
    \else
        \interhword{.331}{.133}{.1}%
    \fi
}}\fi\fi

\RequirePackage{verbatim}
\renewcommand\verbatim@font{\normalfont
                   \ttfamily\spaceskip.5em\relax
                   \hyphenchar\font\m@ne
                   \let\do\do@noligs
                   \verbatim@nolig@list}

% engtext env
\@ifundefined{engtext}%
 {%
   \newenvironment{engtext}%
     {\begingroup\spaceskip=\fontdimen2\font plus\fontdimen3\font minus\fontdimen4\font}%
     {\endgroup}%
 }{}

% engtxt
\newskip\ORIG@spaceskip
\def\engtxt{\ORIG@spaceskip=\spaceskip
  \spaceskip=\fontdimen2\font plus\fontdimen3\font minus\fontdimen4\font}
\def\endengtxt{\spaceskip=\ORIG@spaceskip}

\endinput
%%
%% End of file `dhucs-interword.sty'.

%% CHANGE LOG.
% 2005/09/22. finemath active, change default interhchar.
% 2005/01/07. code clearance
% 2005/05/12. add engtext env., HWP interhchar=0pt.
% 2005/08/05. rewrite codes. introduce nonfrench option
% 2005/11/17. \interhword bug fix.