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%*****************************************************************************
%        Copyright (c) 1989 by N. N. Billawala
%*****************************************************************************


% punct.mf  punctuation: common in all character sets

% 21 characters


iff OK "!":  "Exclamation point";
  beginchar("!",I_w*width#+a_mono#,cap#,0);
  min_limit(join_radius)(.5thin_stem.uc);
  bot z1=(round(.5w),0);
  z0=bot z1+(0,.5accent_dot_diameter);
  top z3=(x1,h)//;  pos3(stem.uc,-oblique);
  onaline(0,3)(2);  bot y2=max(bot y1+accent_dot_diameter+2,.3y3);
  pos2(thin_stem.uc,-oblique);

  p1=dot.b(z1,accent_dot_diameter);
  p2=(z3--z3l)softjoin(z3l--z2l)softjoin(z2l--z2r)softjoin(z2r--z3r)
      softjoin(z3r--z3)--cycle;

  showpoints(0,1,2,3);
adjust(v_a*fitbasis.uc#+m_a*a_mfit#,v_a*fitbasis.uc#+m_a*a_mfit#); 
show_character; endchar;

% rotation of shape and slant of position with obliqueness


iff OK "#":  "Sharp/number/hash/pound"; 
  beginchar("#",.5width#+b_mono#,ascender#,descender#);
  min_limit(join_radius)(.375stem.uc);

  multpos(1,2,3,4)(max(1,.75stem.uc),90);
  bot lft z3l=(0,round(1.05math_axis-.2h-.5*max(1,.75stem.uc)))//;
  z4l=(x3l+.9w,y3l);
  bot rt z2l=(w,y3l+round .4h)//;  
  z1l=(x2l-.9w,y2l);
  onaline(1,2)(11); x11=round(.27[x1,x2]); 
  onaline(3,4)(12); x12=round(.27[x3,x4]); 
  onaline(11,12)(5,6); top y5=h-mathlines; bot y6=-d+mathlines;

  pickup mathpen rotated (angle(z5-z6)-90);
  draw z5--z6; 
  draw (z5--z6) shifted 
       (max(round .5mathlines+2,round(abs(x2-x1))-2*round(.27(x2-x1))),0);
  p1=(z1 soften(z1l,z2l,z2r,z1r) z1)--cycle;  
  p2=(z3 soften(z3l,z4l,z4r,z3r) z3)--cycle;  

  showpoints(1,2,3,4,5,6,11,12);
adjust(v_G*fitbasis.uc#+m_a*b_mfit#,v_G*fitbasis.uc#+m_a*b_mfit#); 
show_character; endchar;


iff OK "$":  "Dollar sign"; 
  beginchar("$",num_width_b#+b_mono#,ascender#,0);

  top y2l=bot y2r+max(1,.75minor_curve.uc)=round(.9(h+d));
  bot y6r=top y6l-max(1,.75minor_curve.uc)=round(.12(h+d));
  rt z1=(.93w,y2r-.05(y2r-y6r))//;                 
  lft z7=(0,y6r+.1(y2r-y6r))//;     
  z4=(.5w,.52[y6r,y2l])//;
  lft z3l=(if narrow_condition:0 else:round(.05w) fi,.5[y4,y2l])//; 
  rt z5r=(w,.5[y6r,y4])//; 
  good_x_for(2l)(z3l,z1,.5)a;  good_x_for(2r)(z3r,z1-(bulb_thickness,0),.4)b;
  good_x_for(6r)(z7,z5r,.5)c;  good_x_for(6l)(z7+(bulb_thickness,0),z5l,.6)d;

  z3=z3l+(.5stem.uc,0); z5=z5r-(.5stem.uc,0);
  ref1=z3..z4..z5;
  pos4(stem.uc,(angle (postcontrol 1 of ref1-precontrol 1 of ref1))+90);
  rt z3r=(lft x3l+max(1,.75stem.uc),(1-v_stress)[y4r,y2r]); 
  lft z5l=(rt x5r-.75stem.uc,v_stress[y6l,y4l]);

  bot z10=(.5w,-ov_b.uc);  multpos(10,11)(max(1,.75thin_stem.uc),-oblique);
  top z11=(.5w,h+ov_t.uc)//;

  p1=bulb.tr(z1,z2r,z2l,cs,bulb_thickness,90) 
     o_t z3l{downward} o_t z4l i_t z5l i_t 
     bulb.bl(z7,z6l,z6r,cs,bulb_thickness,90)
     o_t z5r{upward} o_t z4r i_t z3r i_t cycle;
  p2=(.5[z10l,z11l] soften(z11l,z11r,z10r,z10l) .5[z10l,z11l])--cycle;

  showpoints(1,2,3,4,5,6,7,8,10,11);
adjust(.5num_fit_b#+m_a*b_mfit#,.5num_fit_b#+m_a*b_mfit#); 
show_character; endchar;

% currently same width as the lining numbers



iff OK "%":  "Percent sign"; 
  beginchar("%",.5width#+d_mono#,ascender#,0);

  top y1r=h;   bot y1l=top y1r-max(1,.5major_curve.lc);
  bot y3r=.6h; top y3l=bot y3r+max(1,.5major_curve.lc);  
  lft z2r=(0,(1-v_stress)[y3r,y1r])//;
  rt z2l=(lft x2r+max(1,.5bowlstem.lc),(1-v_stress)[y3r,y1r]);  
  rt z4r=(round(.5w),v_stress[y3r,y1r])//;
  lft z4l=(rt x4r-max(1,.5bowlstem.lc),v_stress[y3r,y1r]);  
  good_x_for(1r)(z2r,z4r,.52)a;  good_x_for(1l)(z2l,z4l,.48)b;  
  good_x_for(3r)(z2r,z4r,.48)c;  good_x_for(3l)(z2l,z4l,.52)d;  

  pickup mathpen rotated angle((w,h)//-(0,0)//);
  z10=(round(.5w),round(-.6h))//;
  top rt z11=(w,h)//;          
  bot lft z12=(0,0)//;
  draw z11--z12;

  p1 =z1r{left} o_t z2r{downward} o_t z3r{right} o_t z4r{upward} o_t cycle;
  p1'=z1l{left} i_t z2l{downward} i_t z3l{right} i_t z4l{upward} i_t cycle;
  p2 =p1 shifted z10;
  p2'=p1' shifted z10;
 
  z13r= point 3.5 of p1; pos13(max(1,.5major_curve.lc),90-oblique);
  z14r= (.5[x13,x11],y13); pos14(max(1,.35bowlstem.lc),90-oblique);
  z15=z11+(.5mathlines,0)rotated (angle((w,h)//-(0,-d)//)+90);
  p3=z13l...z14l{right}...z15--z15...z14r{left}...z13r--cycle;

  showpoints(1,2,3,4,11,12,13,14,15);
adjust(v_C*fitbasis.uc#+m_a*d_mfit#,v_C*fitbasis.uc#+m_a*d_mfit#); 
show_character; endchar;


iff OK "&":  "Ampersand"; 
  beginchar("&",.65width#+d_mono#,cap#,0);

  bot y6r=top y6l-thin_stem.uc=-ov_b.uc;
  top y2l=y2r+max(1,.9thin_stem.uc)=h+ov_t.uc;
  z4=.65[z6r,z2l];  
  rt z1l=(.75w if narrow_condition:+.05w fi,.5[y4,y2r])//;
  pos1(max(1,.9thin_stem.uc),180); 
  lft z3l=(round(.25w),.5[y4,y2r])//; 
  pos3(max(1,.9stem.uc),0); 
  z5=(if narrow_condition:.93w else:.9w fi,.8[y6r,y4])//; 
  z11=(.95[x6l,x5],y5-terminal_thickness-.07h); 
  multpos(5,11)(max(1,if narrow_condition:.8 else:.9 fi *thin_stem.uc),0);
  lft z7r=(0,.45[y6r,y4])//;    rt z7l=z7r+(bowlstem.uc,0);      z7=.5[z7l,z7r];
  z8=.5[z7r,z1l];
  good_x_for(2r)(z3r,z1r,.5)a;  good_x_for(2l)(z3l,z1l,.5)b;
  good_x_for(6l)(z7l,z11l,.4)c;  good_x_for(6r)(z7r,z11r,.4)d;
  x6l:=min(x6l,x6r+thin_stem.uc);

  z9l=z8;
  bot rt z10=(.9w,0); pos10(max(1,.57stem.uc),10);
  ref0=z1{downward}..z8..z7{downward}; 
  pos8(max(1,thin_stem.uc),angle(direction 1 of ref0)+90);
  pos9(max(1,.9stem.uc),angle(direction 1 of ref0)+180);

  ref1=z2r{left} i_t z3r{downward}...
       subpath(0,4)of reverse terminalserif.r(z10,z9,z9l,z9r,.5ts,0)soft;
  ref2=subpath(4,20)of reverse terminalserif.r(z10,z9,z9l,z9r,.5ts,0)soft
       ...z3l{upward} o_t z2l{right};
  ref3=z6r{left} o_t z7r{upward} o_t z8l i_t z1r{upward} i_t z2r{left}; 
  ref4=z6l{left} i_t z7l{upward} i_t z8r o_t z1l{upward} o_t z2l{left};
  ref5=z5l..z11l i_t z6l{left};
  ref6=reverse terminalserif(z5,z11,z11l,z11r,.75hs,0) o_t z6r{left}; 

  (t1,t2)=ref1 intersectiontimes ref3;  (t3,t4)=ref2 intersectiontimes ref3;
  (t5,t6)=ref1 intersectiontimes ref4;  (t7,t8)=ref2 intersectiontimes ref4;
  (t9,t10)=ref1 intersectiontimes ref5; (t11,t12)=ref2 intersectiontimes ref5;
  (t13,t14)=ref1 intersectiontimes ref6;(t15,t16)=ref2 intersectiontimes ref6;

  p1 =reverse(subpath(0,t14)of ref6--subpath(t13,infinity)of ref1--
      subpath(0,t15)of ref2--subpath(t16,infinity)of ref6--
      subpath(0,t4)of ref3--subpath(t3,infinity)of ref2--
      subpath(infinity,t6)of ref4--subpath(t5,t9)of ref1--
      subpath(t10,1)of ref5)--cycle;
  p1'=subpath(0,t1)of ref1--subpath(t2,infinity)of ref3--cycle;  
  p2'=subpath(0,t8)of ref4--subpath(t7,t11)of ref2--
      subpath(t12,infinity)of ref5--cycle;

  showpoints(1,2,3,4,5,6,7,8,9,10,11,41,42,43,44,45,46,47,48,100);
adjust(v_C*fitbasis.uc#+m_a*d_mfit#,v_G*fitbasis.uc#+m_a*d_mfit#); 
show_character; endchar;


iff OK "'":  "Single right quote or apostrophe";
  beginchar(oct"047",I_w*width#+a_mono#,cap#,0);
  save_num(head)=accent_dot_diameter;
  top z1=(.5w,.75[xheight,cap]-.5head)//;
  ref1=comma(z1,head,min(.6xheight,1.5pt),accent_thin_end,0);
  p1=ref1 rotatedaround (z1,if prime:prime_angle fi -oblique);
  showpoints(1);
adjust(v_a*fitbasis.lc#+m_a*a_mfit#,v_a*fitbasis.lc#+m_a*a_mfit#); 
show_character; endchar;

% rotation and slant of position with obliqueness


iff OK "(":  "Left parenthesis";             % need to add shift if w>.45h
  beginchar("(",.25width#+b_mono#,maxheight#,maxdepth#); 
  save_num(width_limit)=min(w,.4(h+d)); 
  parenthesis_curl:=2; def p_c={curl parenthesis_curl} enddef;
  min_limit(join_radius)(max(.5,.37thin_stem.uc));

  top z1l=(width_limit,h)//;
  bot z3l=(width_limit,-d)//;
  lft z2l=.5[z1l,z3l]+(width_limit,0)rotated(180-oblique);
  pos2(max(1,.75stem.uc),-oblique);  
  ref1=z1l...z2l{downward}...z3l; 
  pos1(max(1,.75thin_stem.uc),angle(direction 0 of ref1)+90);
  pos3(max(1,.75thin_stem.uc),angle(direction 2 of ref1)+90);
  ref2=z1l p_c..z2l{downward}..p_c z3l; ref3=z3r p_c..z2r{upward}..p_c z1r;

  if softpath:p1=(z2l{downward}..p_c z3l)softjoin(z3l--z3r)softjoin
         ref3 softjoin(z1r--z1l)softjoin(z1l p_c..z2l{downward})--cycle;
    else:p1=ref2--ref3--cycle;  fi

  showpoints(1,2,3);
adjust(v_C*fitbasis.uc#+m_c*b_mfit#,v_H*fitbasis.uc#+m_cc*b_mfit#); 
show_character; endchar;


iff OK ")":  "Right parenthesis";             % need to add shift if w>.45h
  beginchar(")",.25width#+b_mono#,maxheight#,maxdepth#); 
  save_num(width_limit)=min(w,.4(h+d)); 
  parenthesis_curl:=2; def p_c={curl parenthesis_curl} enddef;
  min_limit(join_radius)(max(.5,.37thin_stem.uc));

  top z1l=(0,h)//;
  bot z3l=(0,-d)//;
  lft z2l=.5[z1l,z3l]+(width_limit,0)rotated(-oblique);
  pos2(max(1,.75stem.uc),180-oblique);  
  ref1=z1l...z2l{downward}...z3l; 
  pos1(max(1,.75thin_stem.uc),angle(direction 0 of ref1)-90);
  pos3(max(1,.75thin_stem.uc),angle(direction 2 of ref1)-90);
  ref2=z1l p_c..z2l{downward}..p_c z3l; ref3=z3r p_c..z2r{upward}..p_c z1r;

  if softpath:p1=(z2l{downward}..p_c z3l)softjoin(z3l--z3r)softjoin
         ref3 softjoin(z1r--z1l)softjoin(z1l p_c..z2l{downward})--cycle;
    else:p1=ref2--ref3--cycle; fi

  showpoints(1,2,3);
adjust(v_H*fitbasis.uc#+m_cc*b_mfit#,v_C*fitbasis.uc#+m_c*b_mfit#); 
show_character; endchar;



iff OK "*":  "Asterisk";
  beginchar("*",.35width#+d_mono#,cap#,0);
  save_num(w_h)=min(w,h); save_bool(softpath)=true; 
  save_num(join_radius)=.3stem.uc;
  z1=(.5w,if singlepitch:math_axis else:h-.5w_h fi)//;
  top z3=z1+(0,.5w_h);
  z2=whatever[z1,z3]; y2=.7[bot y1,top y3];  
  multpos(2,3)(inlimit(.75stem.uc)(1,abs(z2-z1)-2),0);

  pickup pencircle scaled 1.5; draw z1;
  ref1=(z1 soften(z2r,z3r,z3l,z2l) z1)--cycle;
  for nn:=6: for n:=1 upto nn: 
    p[n]=ref1 rotatedaround (z1,(1-n)*(360/nn)-oblique);  endfor endfor
  
  showpoints(1,2,3);
adjust(v_d*fitbasis.uc#+m_a*d_mfit#,v_d*fitbasis.uc#+m_a*d_mfit#); 
show_character; endchar;

% rotation of shape and slant of position with obliqueness


iff OK "+":  "Plus sign"; 
  beginchar("+",.5width#+b_mono#,cap#,0); 
  save_num(w_h)=min(w,h);
  pickup mathpen;
  z0=(.5w,math_axis)//;
  lft z1=round(z0-(.5w_h,0));
  rt z2=lft z1+(w_h,0);
  top z3=round(z0+(0,.5w_h));
  bot z4=z3-(0,1.01w_h);
  x2:=(x2 if(x3-x1)>(x2-x3):+1 elseif(x3-x1)<(x2-x3):-1 fi); 
  draw z1--z2;
  draw z3--z4;  
adjust(v_a*fitbasis.uc#+m_a*b_mfit#,v_a*fitbasis.uc#+m_a*b_mfit#); 
show_character; endchar;

% use different mathpen for softness
% character position, but not shape slants with obliqueness
% must make sure that the plus/minus have the same widths


iff OK ",":  "Comma"; 
  beginchar(",",1.15I_w*width#+a_mono#,xheight#,descender#);
  save_num(head)=round_dot_diameter;
  top z1=(round(.5w),.5round_dot_diameter)//;  
  ref1=comma(z1,head,min(.8d,.6xheight),accent_thin_end,0);  
  p1=ref1 rotatedaround (z1,if prime:prime_angle fi -oblique);
  showpoints(1);
adjust(v_a*fitbasis.lc#+m_a*a_mfit#,v_a*fitbasis.lc#+m_a*a_mfit#); 
show_character; endchar;


iff OK ".":  "Period"; 
  beginchar(".",1.5I_w*width#+a_mono#,xheight#,0); 
  bot z1=(.5w,0);
  p1=dot.b(z1,round_dot_diameter);
  showpoints(1);
adjust(v_a*fitbasis.lc#+m_a*a_mfit#,v_a*fitbasis.lc#+m_a*a_mfit#); 
show_character; endchar;

% no slant of shape with obliqueness



iff OK "/":  "Right leaning slash";         % need to add shift if w>.45h
  beginchar("/",.45width#+b_mono#,maxheight#,maxdepth#);  
  pickup  mathpen rotated angle((min(w,.5(h+d)),h)//-(0,-d)//);
  top rt z1=(min(w,.5(h+d)),h)//;          
  bot lft z2=(0,-d)//;
  draw z1--z2;
adjust(v_H*fitbasis.uc#+m_a*b_mfit#,v_H*fitbasis.uc#+m_a*b_mfit#); 
show_character; endchar;

% use different mathpen for softness



iff OK ":":  "Colon"; 
  beginchar(":",I_w*width#+a_mono#,xheight#,0); 
  bot z1=(round(.5w),0); 
  top z2=(x1,if singlepitch:h
               else:max(.85xheight,top y1+round_dot_diameter+2) fi)//; 
  p1=dot.b(z1,round_dot_diameter);
  p2=dot.t(z2,round_dot_diameter);
  showpoints(1,2);
adjust(v_a*fitbasis.lc#+m_a*a_mfit#,v_a*fitbasis.lc#+m_a*a_mfit#); 
show_character; endchar;

% no slant of shape, but slant of position of top dot with obliqueness

iff OK ";":  "Semi-colon"; 
  beginchar(";",I_w*width#+a_mono#,xheight#,descender#);
  save_num(head)=round_dot_diameter;
  top z1=(round(.5w),.5round_dot_diameter)//;  
  top z2=(x1,if singlepitch:h
               else:max(.85xheight,top y1+round_dot_diameter+2) fi)//; 
  ref1=comma(z1,head,min(.8d,.6xheight),accent_thin_end,0);  
  p1=ref1 rotatedaround (z1,if prime:prime_angle fi -oblique);  
  p2=dot.t(z2,round_dot_diameter);
  showpoints(1,2);
adjust(v_a*fitbasis.lc#+m_a*a_mfit#,v_a*fitbasis.lc#+m_a*a_mfit#); 
show_character; endchar;

% no slant of shape, but slant of position of top dot with obliqueness


iff OK "=":  "Equals sign"; 
  beginchar("=",.5width#+b_mono#,cap#,0); 
  pickup mathpen;
  bot lft z1=(0,math_axis+.15h)//;
  rt z2=(lft x1+w,y1);  
  top lft z3=(0,math_axis-.15h)//;
  rt z4=(lft x3+w,y3);
  draw z1--z2;
  draw z3--z4;
adjust(v_a*fitbasis.uc#+m_a*b_mfit#,v_a*fitbasis.uc#+m_a*b_mfit#); 
show_character; endchar;

% use different mathpen for softness
% character position, but not shape slants with obliqueness


iff OK "?":  "Question mark"; 
  beginchar("?",.35width#+b_mono#,cap#,0);   %.4width
  min_limit(join_radius)(.5thin_stem.uc);
  lft z1=(0,.9h)//;
  rt z3r=(w,.75h)//; lft z3l=z3r-(stem.uc,0);
  top y2r=bot y2l+max(1,major_curve.uc)=h+ov_t.uc; 
  good_x_for(2r)(z1,z3r,.5)a; good_x_for(2l)(z1+(bulb_thickness,0),z3l,.5)b;
  bot z7=(.35w,0);
  z8=bot z7+(0,.5accent_dot_diameter);
  bot z6=(bot z7+(0,max(bot y7+accent_dot_diameter+2,.3y2r)))//;
  multpos(5,6)(thin_stem.uc,-oblique);  
  onaline(6,8)(5); y5=max(y7+accent_dot_diameter+2,.35y2r);   
  z4l=.4[z5l,z3l]; z4r=.4[z5r,z3r]; 

  p1=(bulb.tl(z1,z2l,z2r,cs,max(1,.75bulb_thickness),90)soft i_t z3l{downward} 
      i_t z4l o_t z5l{downward}--z6l)softjoin(z6l--z6r)softjoin
      (z6r--z5r{upward} i_t z4r o_t z3r{upward} o_t z2r{left})--cycle;
  p2=dot.b(z7,accent_dot_diameter);

  showpoints(1,2,3,4,5,6,7,8);
adjust(v_C*fitbasis.uc#+m_a*b_mfit#,v_C*fitbasis.uc#+m_a*b_mfit#); 
show_character; endchar;



iff OK "@":  "Commercial at sign"; 
  beginchar("@",.6width#+f_mono#,maxheight#,maxdepth#);
  majorcurve:=max(1,.75major_curve.lc);
  majorbowltip:=max(1,.75major_bowl_tip.lc);
  minorcurve:=max(1,.75minor_curve.lc);
  save major_curve,minor_curve,major_bowl_tip;
  save_bool(ensure_min_archthickness):=false; 
  save_num(thinline)=max(1,.4pt); 
  major_curve.lc:=majorcurve; major_bowl_tip.lc:=majorbowltip;
  minor_curve.lc:=minorcurve;

  top rt z11r=(if narrow_condition:w else:.75w fi,.75h)//; 
  bot rt z13r=(if narrow_condition:w else:.75w fi,.27h)//;   
   multpos(11,13)(max(1,.75stem.lc),0); 
  onaline(11l,13l)(1l,5,6);    y1l=y1r=(y11r-minor_curve.lc)-minor_ductal.lc; 
  onaline(11r,13r)(1r);        y5=ductal[.25h+major_curve.lc,y1l];
                               y6=y5-major_curve.lc;
  lft z3l=(if narrow_condition:.45w-.5*.75bowlstem.lc else:.25w fi,
           (1-v_stress)[y13,y11r]-.15bowlstem.lc)//;
  rt x3r=lft x3l+max(1,.75bowlstem.lc);
  y3r=inlimit((1-v_stress)[y13r,y11r]+.15bowlstem.lc) 
               (.25h+major_curve.lc,.75h-minor_curve.lc);

  ref1=bowl.l(z5,.25h,z1l,.75h,z3r,z3l); 
  ref2=bowl.l(z5,.25h,z1r,.75h,z3r,z3l); 
  ref3=outer_bowlpath(ref2);  
  ref4=terminalserif.r(z13,z11,z5,z1r,0,0); 

 pickup pencircle scaled thinline;
  rt z20 =(w,.5h)//;
  rt z21 =z1r; 
  top z22=(.5w,.95h)//;   
  lft z23=(0,.5h)//;
  bot z24=(.5w,.05h)//; 
  z25=(.75[x24,x20],.3[y24,y13]);
  draw (if narrow_condition:z20...z21{upward}else:z13{right}...z20{upward} fi
       ...z22{left}...z23{downward}...z24{right}...z25) 
       if singlepitch:shifted(0,-.5d) fi;
  p1'=(bowl_counter(ref1)--cycle) if singlepitch:shifted(0,-.5d) fi;   % counter
  p1 =(outer_juncture_path.br(ref3,ref4,5)--cycle)                     % bowl
        if singlepitch:shifted(0,-.5d) fi;          

  showpoints(1,2,3,5,6,11,13,20,21,22,23,24,25);
adjust(v_C*fitbasis.uc#+m_a*f_mfit#,v_C*fitbasis.uc#+m_a*f_mfit#); 
show_character; endchar;

% this character is quite thin compared to the others and even has its own
%  arch_thickness



iff OK "[":  "Left square bracket";          % need to add shift if w>.45h
  beginchar("[",.3width#+b_mono#,maxheight#,maxdepth#);  
  pickup mathpen;
  top rt z1=(min(w,.3(h+d)),h)//;          
  top lft z2=(0,h)//;
  bot lft z3=(0,-d)//;
  bot rt z4=(min(w,.3(h+d)),-d)//;          
  draw z1--z2--z3--z4;
adjust(v_A*fitbasis.uc#+m_e*b_mfit#,v_H*fitbasis.uc#+m_ee*b_mfit#); 
show_character; endchar;

% use different mathpen for softness


iff OK "]":  "Right square bracket";        % need to add shift if w>.45h
  beginchar("]",.3width#+b_mono#,maxheight#,maxdepth#); 
  pickup mathpen;
  top lft z1=(0,h)//;
  top rt z2=(min(w,.3(h+d)),h)//;          
  bot rt z3=(min(w,.3(h+d)),-d)//;          
  bot lft z4=(0,-d)//;
  draw z1--z2--z3--z4;
adjust(v_H*fitbasis.uc#+m_ee*b_mfit#,v_A*fitbasis.uc#+m_e*b_mfit#); 
show_character; endchar;

% use different mathpen for softness


iff OK "`":  "Single left quote";
  beginchar(oct"140",I_w*width#+a_mono#,cap#,0);
  save_num(head)=accent_dot_diameter;
  z1=(.5w,.75[xheight,cap]-.5head-min(.6xheight,2pt))//;
  ref1=comma(z1,head,min(.6xheight,1.5pt),accent_thin_end,0); 
  p1=ref1 rotatedaround(z1,180 if prime:prime_angle fi -oblique);
  showpoints(1);
adjust(v_a*fitbasis.lc#+m_a*a_mfit#,v_a*fitbasis.lc#+m_a*a_mfit#); 
show_character; endchar;

% rotation and slant of position with obliqueness