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%%
%% This is file `huncltitle.mf',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% huncial.dtx  (with options: `mfd')
%% 
%%  Copyright 1999 Peter R. Wilson
%% 
%%  This program is provided under the terms of the
%%  LaTeX Project Public License distributed from CTAN
%%  archives in directory macros/latex/base/lppl.txt.
%% 
%% Author: Peter Wilson (CUA)
%%         now at: peter.r.wilson@boeing.com
%% 
def makebox(text rule) =
  for y=0,half_height,cap_height,body_height,x_height,-desc_depth,-body_depth:
    rule((l,y)t_,(r,y)t_); endfor  % horizontals
  for x=l,r: rule((x,-body_depth)t_,(x,body_height)t_); endfor % verticals
  for x=u*(1+floor(1/u)) step u until r-1:
    rule((x,-body_depth)t_,(x,body_height)t_); endfor         % more verticals
  if charic<>0:
    rule((r+charic*pt,h.o_),(r+charic*pt,.5h.o_)); fi  % italic correction
enddef;


def proofpcbb(suffix $)(expr xoff, yoff) =
if proofing > 0:
  x$bl = x$ - xoff; y$bl = y$ - yoff;         % Bottom Left Hand Corner
  z$br = (x$bl+side, y$bl);                   % BRHC
  z$tr = (x$bl+side, y$bl+side);              % TRHC
  z$tl = (x$bl, y$bl+side);                   % TLHC
  z$bc = 1/2[z$bl,z$br]; z$tc = 1/2[z$tl,z$tr];  % horizontal mid points
  pair hc, vc;
  hc = (2u,0); vc = (0,2u);
  pickup pensquare scaled 2;
  for s = z$bl, z$br, z$tr, z$tl, z$bc, z$tc:
    draw s-hc--s+hc;
    draw s-vc--s+vc;
  endfor
fi
enddef;


def huncial_font_setup= % contains special stuff for huncial fonts
  define_pixels(side,half_height,carol_height,comma_width);
  define_pixels(u,dot_size,letter_size,cap_height,width_adj,serif_fit,
                cap_serif_fit,jut,cap_jut,trijut);
  define_pixels(fig_width);
  define_whole_pixels(letter_fit);
  define_whole_vertical_pixels(body_height,asc_height,cap_height,x_height,
                               desc_depth,body_depth,fig_height);
  define_corrected_pixels(o);
  define_blacker_pixels(thick,thin);
  let adjust_fit = normal_adjust_fit;
  pickup pencircle scaled thin;
  stylus:=savepen;
  pickup pencircle scaled (1.5thin);
  thickstylus:=savepen;
  pickup pencircle xscaled thick yscaled thin rotated pangle;
  quill:=savepen;
  numeric pcshiftx#; % x value of LHS of box wrt origin of char box
  define_pixels(pcshiftx);
  numeric sqxside#;   % x size of the square
  numeric sqyside#;   % y size of the square
  define_pixels(sqxside,sqyside);

enddef; % end of huncial_font_setup

boolean ductus;
ductus:=false;
numeric qhor, qvert;
qhor:=cosd(pangle); qvert:=sind(pangle);
pair pdir; pdir=dir(pangle);
pair ppdir; ppdir=dir(pangle+90);

def draw_serif(suffix $, $$)(expr fr)=
  numeric beta, ajut, bjut;
  beta=1-fr;
  ajut=fr*jut; bjut=beta*jut;
  pair vec[]; vec1=unitvector(z$$-z$);
  vec2=ajut*vec1;
  z$a=z$ shifted vec2;
  z$b=z$a rotatedaround (z$,-90);
  boolean top_serif;
  if y$>y$$:
    top_serif := true;
    z$c=z$b shifted (-bjut*pdir);
  else:
    top_serif:=false;
    z$c=z$b shifted (bjut*pdir);
  fi
  if top_serif:
    draw z$c--z$b{pdir}..{z$$-z$}z$a;    % the serif
  else:
    draw z$c--z$b{-pdir}..{z$$-z$}z$a;
  fi
  labels($a,$b,$c);
enddef; % end of draw_serif


def draw_triserif(suffix $)(expr tj)=
  pen oldpen; oldpen:=currentpen;
  pickup quill;
  x$ts1'=lft x$; y$ts1'=bot y$;
  pickup stylus;
  lft x$ts1=x$ts1'; bot y$ts1=y$ts1';
  x$ts2=x$ts1-tj; z$ts2=whatever[z$,z$ts1];
  x$ts3=x$ts1; y$ts3=y$ts2-tj;
  pickup stylus;
%%  filldraw z$ts1--z$ts2--z$ts3--cycle;
  filldraw z$--z$ts2--z$ts3--cycle;
  pickup oldpen;
  labels($ts1,$ts2,$ts3);
enddef; % end of draw_triserif


def draw_istem(suffix $, $$)(expr fr)=
  draw_serif($, $$, fr);  % top serif
  draw_serif($$, $, fr);  % bottom serif
  draw z$a--z$$a;  % the stem
enddef; % end of draw_istem


def draw_tstem(suffix $, $$)(expr fr)=
  draw_serif($$, $, fr);  % the serif
  draw z$--z$$a;                      % the stem
enddef; % end of draw_tstem


def draw_tlserif(suffix $, $$)(expr fr)=
  draw_serif($, $$, fr);  % the serif
  draw z$a--z$$;                       % the stem
enddef; % end of draw_tlserif


def draw_flick(suffix $)(expr rise, fall, fjut)=
  rt x$b = x1+fjut; top y$b=y$-fall;
  x$a=0.5[x$,x$b]; top y$a=y$+rise;
  draw z$..z$a..z$b;
  labels($a,$b);
enddef; % end of draw_flick


def draw_wave(suffix $,$$)(expr f)=
  x$wl=x$; y$wl=y$-f;
  x$wr=x$$; y$wr=y$$+f;
  z$wc=0.5[z$wl,z$wr];
  draw z$wl{pdir}..z$wc{right}..{pdir}z$wr;
  labels($wl,$wc,$wr);
enddef; % end of draw_wave

def draw_tail(suffix $)(expr fj)=
  pen oldpen; oldpen:=currentpen;
  pickup quill;
  x$tl' = lft x$; y$tl=bot y$;
  pickup stylus;
  lft x$tl=x$tl';
  x$tb=x$tl-fj; bot y$tb=y$tl-1/2desc_depth;
  filldraw z${down}..{-pdir}z$tb & z$tb{pdir}..{up}z$tl--cycle;
  pickup oldpen;
  labels($tb,$tl);
enddef; % end of draw_tail

def draw_triangle(suffix $)(expr sz)=
  pen oldpen; oldpen:=currentpen;
  pickup stylus;
  x$t1=x$-sz/2; x$t3=x$+sz/2;
  y$t1=y$t3=y$;
  x$t2=x$; y$t2=y$-0.9sz;   % approx sqrt(3)/2
  filldraw z$t1--z$t2--z$t3--cycle;
  pickup oldpen;
  labels($t1,$t2,$t3);
enddef; % end of draw_triangle

def draw_rtriangle(suffix $)(expr sz)=
  pen oldpen; oldpen:=currentpen;
  pickup stylus;
  x$t1=x$-sz; rt x$t3=x$;
  y$t1=y$t3=y$;
  x$t2=x$t3; y$t2=y$-sz;
  filldraw z$t1--z$t2--z$t3--cycle;
  pickup oldpen;
  labels($t1,$t2,$t3);
enddef; % end of draw_rtriangle

def draw_rutriangle(suffix $)(expr sz)=
  pen oldpen; oldpen:=currentpen;
  pickup stylus;
  x$t1=x$-sz; rt x$t3=x$;
  y$t1=y$t3=y$;
  x$t2=x$t3; y$t2=y$+sz;
  filldraw z$t1--z$t2--z$t3--cycle;
  pickup oldpen;
  labels($t1,$t2,$t3);
enddef; % end of draw_rutriangle

def draw_fork(suffix $, $$)(expr sz)=
  pen oldpen; oldpen:=currentpen;
  pickup quill;
  x$f1'=lft x$; y$f1'=bot y$;
  x$f3'=rt x$;  y$f3'=top y$;
  pickup stylus;
  lft x$f1=x$f1'; bot y$f1=y$f1';
  rt x$f3=x$f3';  y$f3-y$=2*(y$-y$f1);
  rt x$f2=x$$-sz; bot y$f2=y$$;
  rt x$f4= rt x$f5=x$$;
  bot y$f5=y$$-sz; top y$f4=y$$+1/2sz;
  filldraw z$f1--z$f2--z$f3--cycle;   % the line
  draw z$f2{right}..z$f4;             % upper fork
  draw z$f2{right}..z$f5;             % lower fork
  pickup oldpen;
  labels($f1,$f2,$f3,$f4,$f5);
enddef; % end of draw_fork

def draw_urswish(suffix $, $$)=
  pen oldpen; oldpen:=currentpen;
  pickup quill;
  rt x$$s1=x$$-thick; top y$$s1=y$$;
  rt x$$s2=x$$;
%%  x$$s3=x$$-thick;
  lft x$$s3=x$$s1;
  bot y$$s3=y$$-thick; y$$s2=0.5[y$$s1,y$$s3];
%%  draw z$---z$$s1{right}..z$$s2{down}..{-pdir}z$$s3;
  draw z$..z$$s1{pdir}..z$$s2{down};
  labels($$s1,$$s2,$$s3);
enddef; % end of draw_urswish

def bowl_stem(suffix $, $$)=
  x$'=0.5[x$,x$$]; y$'=y$;    % the mid-point
  z$''=z$' shifted (thick*pdir);
  x$i=x$$; z$i=whatever[z$',z$''];
  labels($',$i);
enddef; % end of bowl_stem

def draw_pdot(suffix $)(expr sz)=
  z$s = z$ shifted (0.5sz*left);
  z$t = z$ shifted (0.5sz*up);
  z$u = z$s shifted (sz*right);
  z$v = z$t shifted (sz*down);
  pickup stylus;
  filldraw z$s--z$t--z$u--z$v--cycle;
  labels($s,$t,$u,$v);
enddef; % end of draw_pdot


def draw_pcomma(suffix $)(expr sz, ar)=
  z$s = z$ shifted (0.5sz*left);
  z$t = z$s shifted (sz*right);
  x$v=x$s-ar; y$v=y$s-ar;
  z$u = z$v shifted (sz*right);
  pickup stylus;
  filldraw z$s--z$t--z$u--z$v--cycle;
%%  filldraw z$s--z$t--z$u--cycle;
  labels($s,$t,$u,$v);
enddef; % end of draw_pcomma


def draw_plq(suffix $)(expr sz, ar)=
  z$s = z$ shifted (0.5sz*left);
  z$t = z$s shifted (sz*right);
  x$v=x$s+ar; y$v=y$s-ar;
  z$u = z$v shifted (sz*right);
  pickup stylus;
  filldraw z$s--z$t--z$u--z$v--cycle;
%%  filldraw z$s--z$t--z$v--cycle;
  labels($s,$t,$u,$v);
enddef; % end of draw_plq


font_coding_scheme:="ASCII minuscules and punctuation";
mode_setup;
huncial_font_setup;


input huncll;        % minuscules (lower case)
input hunclu;        % majuscules (capitals)
input hunclpunct;    % punctuation
input huncllig;      % the several dashes
input huncldig;      % arabic digits


font_slant slant; font_x_height x_height#;
if monospace: font_normal_space 9u#; % no stretching or shrinking
 font_quad 18u#;
 font_extra_space 9u#;
else: font_normal_space 6u#+2letter_fit#;
 font_normal_stretch 3u#; font_normal_shrink 2u#;
 font_quad 18u#+4letter_fit#;
 font_extra_space 2u#;
 k#:=-.5u#; kk#:=-1.5u#; kkk#:=-2u#; % three degrees of kerning
%% ligtable "P": "T": "Y": "A" kern kk#;
%% ligtable "F": "V": "W": "A" kern if serifs: kkk# else: kk#fi,
%%  "K": "X": "O" kern k#, "C" kern k#, "G" kern k#, "Q" kern k#;
%% ligtable "O": "D": "X" kern k#, "W" kern k#, "A" kern k#,
%%   "V" kern k#, "Y" kern k#;
%% ligtable "A": if serifs: "R": fi
%%  "C" kern k#, "O" kern k#, "G" kern k#, "U" kern k#, "Q" kern k#,
%%  "L": "T" kern kk#, "Y" kern kkk#, "V" kern kk#, "W" kern kkk#;
%%ligtable "I": "I" kern -k#; % Richard III
fi

bye.