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%
% GREEK.STY - 14-SEP-1988
% ~~~~~~~~~
%
% Allow LaTeX to use BHK's Greek fonts
%
% \gr   -  greek
% \grbf -  greek bold-face
% \grit -  greek italic
% \grtt -  greek typewriter
% 
%
% AUTHORS:	Brian Hamilton Kelly & Niel Kempson,
% 		School of Electrical Engineering and Science,
% 		Royal Military College of Science,
% 		Shrivenham,
% 		SWINDON 
% 		SN6 8LA
% 		ENGLAND
%
% Telephone:	(+793) 785687 / 785252
% JANET:	rm001a@uk.ac.cranfield.cdvc
%

%
% The fonts are loaded on demand, but don't demand too many or LaTeX
% will exhaust its font memory.
%

% Need special definition of \@getfont that includes call of \gracc
% after invocation of the font
%
\def\gr@getfont#1#2#3#4{\@ifundefined{\string #1\string #3}{\global\expandafter
    \font \csname \string #1\string #3\endcsname #4\relax 
     \@addfontinfo#3{\textfont #2\csname \string #1\string #3\endcsname 
     \scriptfont #2\csname \string #1\string #3\endcsname 
     \scriptscriptfont #2\csname \string #1\string #3\endcsname 
     \def#1{\fam #2\csname\string #1\string #3\endcsname\@prtct\gracc}}}{}#3#1}

% Following section is beginnings of attempt to make this style option
% work with SliTeX too.   Further work is awaiting the rewriting of SFONTS.TEX
% to use similar naming scheme, load-on-demand, etc as LFONTS.TEX --- I expect
% to get around to that someday!!
%
\@ifundefined{@xivpt}{% This must be running under SliTeX
    \let\@prtct=\relax

    \def\@addfontinfo#1#2{{\def\@prtct{\noexpand\@prtct\noexpand}\def\def{\noexpand
	\def\noexpand}\xdef#1{#1#2}}}

    \def\@nohyphens#1#2{\global\expandafter \hyphenchar\csname 
       \string #1\string #2\endcsname \m@ne}

    \def\@subfont#1#2{\@warning{No \string#1\space typeface in 
	    this size, using \string#2}#2}

    \def\@vpt{}
    \def\@vipt{}
    \def\@viipt{}
    \def\@viiipt{}
    \def\@ixpt{}
    \def\@xpt{}
    \def\@xipt{}
    \def\@xiipt{}
    \let\@xivpt=\fourteenpt
    \let\@xviipt=\seventeenpt
    \let\@xxpt=\twentypt
    \let\@xxvpt=\twentyfourpt
    \let\@xxixpt=\twentyninept
    \let\@xxxivpt=\thirtyfourpt
    \let\@xlipt=\fourtyonept}{%
    \relax
}

% These are the font changing commands used by the ``public''
%
\def\gr{\protect\pgr}
\def\grbf{\protect\pgrbf}
\def\grit{\protect\pgrit}
\def\grtt{\protect\pgrtt}

% These macros just save a little space for the repeated font names
%
\def\gr@@k{cmg10}
\def\gr@@kb{cmgb10}
\def\gr@@ki{cmgi10}
\def\gr@@kt{cmgtt10}

% This macro has to be invoked every time we switch to a Greek font; it
% defines \s to be the variant of \sigma used at the ends of words
%
\def\gracc{\chardef\s="D }  % NB Space after <hexnumber> is essential

% Define families of Greek fonts
%
\newfam\grfam
\newfam\grbfam
\newfam\grifam
\newfam\grtfam

% Now add commands to each LaTeX size changing command which defines
% the Greek font selections to invoke macros which load the font ``on
% demand''.
%
\@addfontinfo\@vpt{\def\pgr{\@prtct\gr@vpt}%
                   \def\pgrbf{\@prtct\grb@vpt}%
		   \def\pgrit{\@prtct\gri@vpt}%
		   \def\pgrtt{\@prtct\grt@vpt}}
\@addfontinfo\@vipt{\def\pgr{\@prtct\gr@vipt}%
                    \def\pgrbf{\@prtct\grb@vipt}%
		    \def\pgrit{\@prtct\gri@vipt}%
		    \def\pgrtt{\@prtct\grt@vipt}}
\@addfontinfo\@viipt{\def\pgr{\@prtct\gr@viipt}%
                     \def\pgrbf{\@prtct\grb@viipt}%
		     \def\pgrit{\@prtct\gri@viipt}%
		     \def\pgrtt{\@prtct\grt@viipt}}
\@addfontinfo\@viiipt{\def\pgr{\@prtct\gr@viiipt}%
                      \def\pgrbf{\@prtct\grb@viiipt}%
		      \def\pgrit{\@prtct\gri@viiipt}%
		      \def\pgrtt{\@prtct\grt@viiipt}}
\@addfontinfo\@ixpt{\def\pgr{\@prtct\gr@ixpt}%
                    \def\pgrbf{\@prtct\grb@ixpt}%
		    \def\pgrit{\@prtct\gri@ixpt}%
		    \def\pgrtt{\@prtct\grt@ixpt}}
\@addfontinfo\@xpt{\def\pgr{\@prtct\gr@xpt}%
	           \def\pgrbf{\@prtct\grb@xpt}%
		   \def\pgrit{\@prtct\gri@xpt}%
		   \def\pgrtt{\@prtct\grt@xpt}}
\@addfontinfo\@xipt{\def\pgr{\@prtct\gr@xipt}%
                    \def\pgrbf{\@prtct\grb@xipt}%
		    \def\pgrit{\@prtct\gri@xipt}%
		    \def\pgrtt{\@prtct\grt@xipt}}
\@addfontinfo\@xiipt{\def\pgr{\@prtct\gr@xiipt}%
                     \def\pgrbf{\@prtct\grb@xiipt}%
		     \def\pgrit{\@prtct\gri@xiipt}%
		     \def\pgrtt{\@prtct\grt@xiipt}}
\@addfontinfo\@xivpt{\def\pgr{\@prtct\gr@xivpt}%
                     \def\pgrbf{\@prtct\grb@xivpt}%
		     \def\pgrit{\@prtct\gri@xivpt}%
		     \def\pgrtt{\@prtct\grt@xivpt}}
\@addfontinfo\@xviipt{\def\pgr{\@prtct\gr@xviipt}%
                      \def\pgrbf{\@prtct\grb@xviipt}%
		      \def\pgrit{\@prtct\gri@xviipt}%
		      \def\pgrtt{\@prtct\grt@xviipt}}
\@addfontinfo\@xxpt{\def\pgr{\@prtct\gr@xxpt}%
                    \def\pgrbf{\@prtct\grb@xxpt}%
		    \def\pgrit{\@prtct\gri@xxpt}%
		    \def\pgrtt{\@prtct\grt@xxpt}}
\@addfontinfo\@xxvpt{\def\pgr{\@prtct\gr@xxvpt}%
                     \def\pgrbf{\@prtct\grb@xxvpt}%
		     \def\pgrit{\@prtct\gri@xxvpt}%
		     \def\pgrtt{\@prtct\grt@xxvpt}}

% Finally, we can define WHICH fonts are to be loaded on demand.
%
\def\gr@vpt{\@subfont\gr\rm}
\def\gr@vipt{\gr@getfont\pgr\grfam\@vipt{\gr@@k\@ptscale6}}
\def\gr@viipt{\gr@getfont\pgr\grfam\@viipt{\gr@@k\@ptscale7}}
\def\gr@viiipt{\gr@getfont\pgr\grfam\@viiipt{\gr@@k\@ptscale8}}
\def\gr@ixpt{\gr@getfont\pgr\grfam\@ixpt{\gr@@k\@ptscale9}}
\def\gr@xpt{\gr@getfont\pgr\grfam\@xpt{\gr@@k}}
\def\gr@xipt{\gr@getfont\pgr\grfam\@xipt{\gr@@k\@halfmag}}
\def\gr@xiipt{\gr@getfont\pgr\grfam\@xiipt{\gr@@k\@magscale1}}
\def\gr@xivpt{\gr@getfont\pgr\grfam\@xivpt{\gr@@k\@magscale2}}
\def\gr@xviipt{\gr@getfont\pgr\grfam\@xviipt{\gr@@k\@magscale3}}
\def\gr@xxpt{\gr@getfont\pgr\grfam\@xxpt{\gr@@k\@magscale4}}
\def\gr@xxvpt{\gr@getfont\pgr\grfam\@xxvpt{\gr@@k\@magscale5}}

\def\grb@vpt{\@subfont\grbf\bf}
\def\grb@vipt{\gr@getfont\pgrbf\grbfam\@vipt{\@gr@@kb\@ptscale6}}
\def\grb@viipt{\gr@getfont\pgrbf\grbfam\@viipt{\gr@@kb\@ptscale7}}
\def\grb@viiipt{\gr@getfont\pgrbf\grbfam\@viiipt{\gr@@kb\@ptscale8}}
\def\grb@ixpt{\gr@getfont\pgrbf\grbfam\@ixpt{\gr@@kb\@ptscale9}}
\def\grb@xpt{\gr@getfont\pgrbf\grbfam\@xpt{\gr@@kb}}
\def\grb@xipt{\gr@getfont\pgrbf\grbfam\@xipt{\gr@@kb\@halfmag}}
\def\grb@xiipt{\gr@getfont\pgrbf\grbfam\@xiipt{\gr@@kb\@magscale1}}
\def\grb@xivpt{\gr@getfont\pgrbf\grbfam\@xivpt{\gr@@kb\@magscale2}}
\def\grb@xviipt{\gr@getfont\pgrbf\grbfam\@xviipt{\gr@@kb\@magscale3}}
\def\grb@xxpt{\gr@getfont\pgrbf\grbfam\@xxpt{\gr@@kb\@magscale4}}
\def\grb@xxvpt{\gr@getfont\pgrbf\grbfam\@xxvpt{\gr@@kb\@magscale5}}

\def\gri@vpt{\@subfont\grit\it}
\def\gri@vipt{\gr@getfont\pgrit\grifam\@vipt{\gr@@ki\@ptscale6}}
\def\gri@viipt{\gr@getfont\pgrit\grifam\@viipt{\gr@@ki\@ptscale7}}
\def\gri@viiipt{\gr@getfont\pgrit\grifam\@viiipt{\gr@@ki\@ptscale8}}
\def\gri@ixpt{\gr@getfont\pgrit\grifam\@ixpt{\gr@@ki\@ptscale9}}
\def\gri@xpt{\gr@getfont\pgrit\grifam\@xpt{\gr@@ki}}
\def\gri@xipt{\gr@getfont\pgrit\grifam\@xipt{\gr@@ki\@halfmag}}
\def\gri@xiipt{\gr@getfont\pgrit\grifam\@xiipt{\gr@@ki\@magscale1}}
\def\gri@xivpt{\gr@getfont\pgrit\grifam\@xivpt{\gr@@ki\@magscale2}}
\def\gri@xviipt{\gr@getfont\pgrit\grifam\@xviipt{\gr@@ki\@magscale3}}
\def\gri@xxpt{\gr@getfont\pgrit\grifam\@xxpt{\gr@@ki\@magscale4}}
\def\gri@xxvpt{\gr@getfont\pgrit\grifam\@xxvpt{\gr@@ki\@magscale5}}

\def\grt@vpt{\@subfont\grtt\tt}
\def\grt@vipt{\gr@getfont\pgrtt\grtfam\@vipt{\gr@@kt\@ptscale6}%
         \@nohyphens\pgrtt\@vipt}
\def\grt@viipt{\gr@getfont\pgrtt\grtfam\@viipt{\gr@@kt\@ptscale7}%
         \@nohyphens\pgrtt\@viipt}
\def\grt@viiipt{\gr@getfont\pgrtt\grtfam\@viiipt{\gr@@kt\@ptscale8}%
         \@nohyphens\pgrtt\@viiipt}
\def\grt@ixpt{\gr@getfont\pgrtt\grtfam\@ixpt{\gr@@kt\@ptscale9}%
         \@nohyphens\pgrtt\@ixpt}
\def\grt@xpt{\gr@getfont\pgrtt\grtfam\@xpt{\gr@@kt}%
         \@nohyphens\pgrtt\@xpt}
\def\grt@xipt{\gr@getfont\pgrtt\grtfam\@xipt{\gr@@kt\@halfmag}%
         \@nohyphens\pgrtt\@xipt}
\def\grt@xiipt{\gr@getfont\pgrtt\grtfam\@xiipt{\gr@@kt\@magscale1}%
         \@nohyphens\pgrtt\@xiipt}
\def\grt@xivpt{\gr@getfont\pgrtt\grtfam\@xivpt{\gr@@kt\@magscale2}%
         \@nohyphens\pgrtt\@xivpt}
\def\grt@xviipt{\gr@getfont\pgrtt\grtfam\@xviipt{\gr@@kt\@magscale3}%
         \@nohyphens\pgrtt\@xviipt}
\def\grt@xxpt{\gr@getfont\pgrtt\grtfam\@xxpt{\gr@@kt\@magscale4}%
         \@nohyphens\pgrtt\@xxpt}
\def\grt@xxvpt{\gr@getfont\pgrtt\grtfam\@xxvpt{\gr@@kt\@magscale5}%
         \@nohyphens\pgrtt\@xxvpt}