%    Copyright (C) 1991 Silvio Levy
%     
%    This file 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 file 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.  If not, see <http://www.gnu.org/licenses/>.
%
%    As a special exception, if you create a document which uses this font,
%    and embed this font or unaltered portions of this font into the
%    document, this font does not by itself cause the resulting document to
%    be covered by the GNU General Public License. This exception does not
%    however invalidate any other reasons why the document might be covered
%    by the GNU General Public License. If you modify this font, you may
%    extend this exception to your version of the font, but you are not
%    obligated to do so. If you do not wish to do so, delete this exception
%    statement from your version.

if unknown gen_acc : readfrom("gen_acc") fi
if unknown gen_sigma : readfrom("gen_sigma") fi
     
def width = 8.5u enddef;
def dims = width#,x_height#,desc_depth# enddef;
def ital = 0 enddef;
def fit_params = if straight: .75 else: .5 fi u#,0 enddef;
     
def gen_letter =
 pickup fine.nib;
 y1r-.5stem=-d-o; pos1(stem,0);                                 %bottom right
 rt x2r=hround(w-.75u); y2r=.5x_height; pos2(hair,0);           %right bulge
 lft x5r=hround(1.5u); y5-.5stem=-o; pos5(stem,-180);           %bottom left
 top y4r=x_height+o; x4r=.5[lft x2l,rt x5l];                    %top of arch
 pos6(hair,180); y6=y2;                                 %where handle attaches
 if straight:
  x1=x2; x5=x6; pos4(stem,90);                          %yawn...
  filldraw double_circ_stroke z1e--pulled_arc.e(2,4)&pulled_arc.e(4,6)--z5e;
 else:
  rt x1r=hround (rt x2r-.25u); z2'l=z2'r=up;
  filldraw circ_stroke z1e{up}...gr_arc.e(2,3,4)(hair,stem,.8); %right leg
  filldraw circ_stroke z5e{(z4-z5) yscaled 3}...z4e{-z4'e};     %left leg
  z6r=((0,y2)--(w,y2)) intersectionpoint (z5r{(z4-z5) yscaled 3}...z4r{-z4'r});
 fi
 pos8(vstem,0); rt x8r=hround(lft x6r-.75u);            %end of handle
 pos7(vstem,-90); top y7l=x_height+o; z8r=z7r;          %top of handle
 filldraw circ_stroke z8e{up}...z7e{right}...z6e{down};
 numeric x_baryctr; x_baryctr=.1[x4,x7];                %accent reference
 numeric pos_stem; pos_stem=x5;                         %iota reference
enddef;
     
cmchar "Lowercase eta";
beginchar("h",dims);
this_letter; penlabels(1,2,3,4,5,6,7,8); endchar;
     
if boolean barebones: picture savedpicture; endinput; fi
     
cmchar "Lowercase eta with grave";
beginchar(oct"230",width#,acc_ht#,desc_depth#);
this_letter; grave(x_baryctr); endchar;
     
cmchar "Lowercase eta with rough breathing";
beginchar(oct"231",width#,acc_ht#,desc_depth#);
this_letter; spirit(x_baryctr)<; endchar;
     
cmchar "Lowercase eta with smooth breathing";
beginchar(oct"232",width#,acc_ht#,desc_depth#);
this_letter; spirit(x_baryctr)>; endchar;
     
cmchar "Lowercase sigma followed by eta with grave";
begindoublechar(oct"233",dim_sigma);
mid_sigma; middoublechar(width#,acc_ht#,desc_depth#);
this_letter; grave(x_baryctr); endchar;
     
cmchar "Lowercase eta with grave and iota subscript";
beginchar(oct"234",width#,acc_ht#,desc_depth#);
this_letter; grave(x_baryctr); iota_sub(pos_stem); endchar;
     
cmchar "Lowercase eta with rough breathing and iota subscript";
beginchar(oct"235",width#,acc_ht#,desc_depth#);
this_letter; spirit(x_baryctr)<; iota_sub(pos_stem); endchar;
     
cmchar "Lowercase eta with smooth breathing and iota subscript";
beginchar(oct"236",width#,acc_ht#,desc_depth#);
this_letter; spirit(x_baryctr)>; iota_sub(pos_stem); endchar;
     
cmchar "Lowercase sigma followed by eta with iota subscript";
begindoublechar(oct"237",dim_sigma);
mid_sigma;
middoublechar(width#,x_height#,desc_depth#);
this_letter; iota_sub(pos_stem); endchar;
     
cmchar "Lowercase eta with acute";
beginchar(oct"240",width#,acc_ht#,desc_depth#);
this_letter; acute(x_baryctr); endchar;
     
cmchar "Lowercase eta with rough breathing and acute";
beginchar(oct"241",width#,acc_ht#,desc_depth#);
this_letter; spirit_acute(x_baryctr)<; endchar;
     
cmchar "Lowercase eta with smooth breathing and acute";
beginchar(oct"242",width#,acc_ht#,desc_depth#);
this_letter; spirit_acute(x_baryctr)>; endchar;
     
cmchar "Lowercase sigma followed by eta with acute";
begindoublechar(oct"243",dim_sigma);
mid_sigma; middoublechar(width#,acc_ht#,desc_depth#);
this_letter; acute(x_baryctr); endchar;
     
cmchar "Lowercase eta with acute and iota subscript";
beginchar(oct"244",width#,acc_ht#,desc_depth#);
this_letter; acute(x_baryctr); iota_sub(pos_stem); endchar;
     
cmchar "Lowercase eta with rough breathing, acute and iota subscript";
beginchar(oct"245",width#,acc_ht#,desc_depth#);
this_letter; spirit_acute(x_baryctr)<; iota_sub(pos_stem); endchar;
     
cmchar "Lowercase eta with smooth breathing and acute and iota subscript";
beginchar(oct"246",width#,acc_ht#,desc_depth#);
this_letter; spirit_acute(x_baryctr)>; iota_sub(pos_stem); endchar;
     
cmchar "Lowercase sigma followed by eta with acute and iota subscript";
begindoublechar(oct"247",dim_sigma);
mid_sigma; middoublechar(width#,acc_ht#,desc_depth#);
this_letter; acute(x_baryctr); iota_sub(pos_stem); endchar;
     
cmchar "Lowercase eta with circumflex";
beginchar(oct"250",width#,circ_ht#,desc_depth#);
this_letter; circumflex(x_baryctr); endchar;
     
cmchar "Lowercase eta with rough breathing and circumflex";
beginchar(oct"251",width#,Circ_ht#,desc_depth#);
this_letter; spirit_circumflex(x_baryctr)<; endchar;
     
cmchar "Lowercase eta with smooth breathing and circumflex";
beginchar(oct"252",width#,Circ_ht#,desc_depth#);
this_letter; spirit_circumflex(x_baryctr)>; endchar;
     
cmchar "Lowercase sigma followed by eta with circumflex";
begindoublechar(oct"253",dim_sigma);
mid_sigma; middoublechar(width#,circ_ht#,desc_depth#);
this_letter; circumflex(x_baryctr); endchar;
     
cmchar "Lowercase eta with circumflex and iota subscript";
beginchar(oct"254",width#,circ_ht#,desc_depth#);
this_letter; circumflex(x_baryctr); iota_sub(pos_stem); endchar;
     
cmchar "Lowercase eta with rough breathing, circumflex and iota subscript";
beginchar(oct"255",width#,Circ_ht#,desc_depth#);
this_letter; spirit_circumflex(x_baryctr)<; iota_sub(pos_stem); endchar;
     
cmchar "Lowercase eta with smooth breathing, circumflex and iota subscript";
beginchar(oct"256",width#,Circ_ht#,desc_depth#);
this_letter; spirit_circumflex(x_baryctr)>; iota_sub(pos_stem); endchar;
     
cmchar "Lowercase sigma followed by eta with circumflex and iota subscript";
begindoublechar(oct"257",dim_sigma);
mid_sigma; middoublechar(width#,circ_ht#,desc_depth#);
this_letter; circumflex(x_baryctr); iota_sub(pos_stem); endchar;
     
cmchar "Lowercase eta with iota subscript";
beginchar(oct"371",width#,x_height#,desc_depth#);
this_letter; iota_sub(pos_stem); endchar;
     
cmchar "Lowercase sigma followed by eta";
begindoublechar(oct"010",dim_sigma);
mid_sigma; middoublechar(dims); this_letter; endchar;
     
picture pic.iota;
picture savedpicture;