path: root/macros/lamstex/mf/lams3.mf

% LAMS3.MF      VERSION 1.0
% COPYRIGHT (C) 1989 BY THE TEXPLORATORS CORPORATION
% ALL RIGHTS RESERVED

if unknown cmbase: input cmbase fi
% replace the macro adjust_fit by version used in earlier cmbase files to
% avoid division by zero error caused by newer versions of cmbase
% Patch by Ingo Hadan (Jan 97)

def normal_adjust_fit(expr left_adjustment,right_adjustment) =
 l:=-hround(left_adjustment*hppp)-letter_fit;
 interim xoffset:=-l;
 charwd:=charwd+2letter_fit#+left_adjustment+right_adjustment;
 r:=l+hround(charwd*hppp)-shrink_fit;
 w:=r-hround(right_adjustment*hppp)-letter_fit;
 enddef;

def mono_adjust_fit(expr left_adjustment,right_adjustment) =
 numeric expansion_factor;
 mono_charwd#=2letter_fit#
   +expansion_factor*(charwd+left_adjustment+right_adjustment);
 forsuffixes $=u,jut,cap_jut,beak_jut,apex_corr:
   $:=$.#*expansion_factor*hppp; endfor
 l:=-hround(left_adjustment*expansion_factor*hppp)-letter_fit;
 interim xoffset:=-l;
 r:=l+mono_charwd-shrink_fit;
 w:=r-hround(right_adjustment*expansion_factor*hppp)-letter_fit;
 charwd:=mono_charwd#; charic:=mono_charic#;
 enddef;

font_identifier:="LAMS"; font_size 10pt#;

u#:=20/36pt#;      % unit width
width_adj#:=0pt#;    % width adjustment for certain characters
serif_fit#:=0pt#;    % extra sidebar near lowercase serifs
cap_serif_fit#:=5/36pt#;  % extra sidebar near uppercase serifs
letter_fit#:=0pt#;    % extra space added to all sidebars

body_height#:=270/36pt#;  % height of tallest characters
asc_height#:=360/36pt#;    % height of lowercase ascenders
cap_height#:=246/36pt#;    % height of caps
fig_height#:=232/36pt#;    % height of numerals
x_height#:=155/36pt#;    % height of lowercase without ascenders
math_axis#:=90/36pt#;    % axis of symmetry for math symbols
bar_height#:=87/36pt#;    % height of crossbar in lowercase e
comma_depth#:=70/36pt#;    % depth of comma below baseline
desc_depth#:=0/36pt#;    % depth of lowercase descenders

crisp#:=8/36pt#;    % diameter of serif corners
tiny#:=8/36pt#;      % diameter of rounded corners
fine#:=7/36pt#;      % diameter of sharply rounded corners
thin_join#:=7/36pt#;    % width of extrafine details
hair#:=9/36pt#;      % lowercase hairline breadth
stem#:=24/36pt#;    % lowercase stem breadth
curve#:=29/36pt#;    % lowercase curve breadth
ess#:=27/36pt#;      % breadth in middle of lowercase s
flare#:=32/36pt#;    % diameter of bulbs or breadth of terminals
dot_size#:=38/36pt#;    % diameter of dots
cap_hair#:=11/36pt#;    % uppercase hairline breadth
cap_stem#:=30/36pt#;    % uppercase stem breadth
cap_curve#:=35/36pt#;    % uppercase curve breadth
cap_ess#:=33/36pt#;    % breadth in middle of uppercase s
rule_thickness#:=.4pt#;    % thickness of lines in math symbols

dish#:=1/36pt#;      % amount erased at top or bottom of serifs
bracket#:=20/36pt#;    % vertical distance from serif base to tangent
jut#:=30/36pt#;      % protrusion of lowercase serifs
cap_jut#:=37/36pt#;    % protrusion of uppercase serifs
beak_jut#:=10/36pt#;    % horizontal protrusion of beak serifs
beak#:=70/36pt#;    % vertical protrusion of beak serifs
vair#:=8/36pt#;      % vertical diameter of hairlines
notch_cut#:=10pt#;    % maximum breadth above or below notches
bar#:=11/36pt#;      % lowercase bar thickness
slab#:=11/36pt#;    % serif and arm thickness
cap_bar#:=11/36pt#;    % uppercase bar thickness
cap_band#:=11/36pt#;    % uppercase thickness above/below lobes
cap_notch_cut#:=10pt#;    % max breadth above/below uppercase notches
serif_drop#:=4/36pt#;    % vertical drop of sloped serifs
stem_corr#:=1/36pt#;    % for small refinements of stem breadth
vair_corr#:=1/36pt#;    % for small refinements of hairline height
apex_corr#:=0pt#;    % extra width at diagonal junctions

o#:=8/36pt#;      % amount of overshoot for curves
apex_o#:=8/36pt#;    % amount of overshoot for diagonal junctions

slant:=0;      % tilt ratio $(\Delta x/\Delta y)$
fudge:=1;      % factor applied to weights of heavy characters
math_spread:=0;      % extra openness of math symbols
superness:=1/sqrt2;    % parameter for superellipses
superpull:=1/6;      % extra openness inside bowls
beak_darkness:=11/30;    % fraction of triangle inside beak serifs
ligs:=2;      % level of ligatures to be included

square_dots:=false;    % should dots be square?
hefty:=false;      % should we try hard not to be overweight?
serifs:=true;      % should serifs and bulbs be attached?
monospace:=false;    % should all characters have the same width?
variant_g:=true;    % should an italic-style g be used?
low_asterisk:=false;    % should the asterisk be centered at the axis?
math_fitting:=true;    % should math-mode spacing be used?

mode_setup; font_setup;
autorounding:=0;

font_slant slant; font_x_height 0;
font_quad 18u# if not monospace:+4letter_fit# fi;

slant:=mono_charic#:=0;  % the remaining characters will not be slanted
currenttransform:=identity yscaled aspect_ratio scaled granularity;

def Shaft (expr ChCode, ChWidthFrac,ChHeightFrac)=

beginchar(ChCode,ChWidthFrac*18u#,ChHeightFrac*18u#,0#);
adjust_fit(0,0); pickup crisp.nib;
x1= 0; x0=(w);
y1=-d; y0=h;
numeric theta,delta; theta=angle(z0-z1); delta=3u++.24asc_height;
if abs(theta-45)<2.5: theta:=45; y1:=y0+x1-x0; fi % near-45$^\circ$ angle
pos1(rule_thickness,90+theta); pos2(1.5rule_thickness,90+theta);
x2= w;
y2=h;
pickup pencircle scaled rule_thickness;
draw z1--z0;
penlabels(1,2); endchar;
enddef;

Shaft(0,2/5,1);
Shaft(13,1/3,1);
Shaft(26,1/4,1);
Shaft(39,1/5,1);
Shaft(52,1/6,1);

def DashedShaft (expr ChCode, ChWidthFrac, ChHeightFrac)=

beginchar(ChCode,ChWidthFrac*18u#,ChHeightFrac*18u#,0#);
adjust_fit(0,0); pickup crisp.nib;
x1= 0; x0=(w);
y1=-d; y0=h;
numeric theta,delta; theta=angle(z0-z1); delta=3u++.24asc_height;
if abs(theta-45)<2.5: theta:=45; y1:=y0+x1-x0; fi % near-45$^\circ$ angle
pos1(rule_thickness,90+theta); pos2(1.5rule_thickness,90+theta);
x2= w;
y2=h;
pickup pencircle scaled rule_thickness;
draw z1--1/6z2;
draw 2/6z2--4/6z2;
draw 5/6z2--z2;
penlabels(1,2); endchar;
enddef;

DashedShaft(1,2/5,1);
DashedShaft(14,1/3,1);
DashedShaft(27,1/4,1);
DashedShaft(40,1/5,1);
DashedShaft(53,1/6,1);

def UpperHead (expr ChCode, ChWidthFrac, ChHeightFrac)=
beginchar(ChCode,ChWidthFrac*18u#,ChHeightFrac*18u#,0#);
adjust_fit(0,0); pickup crisp.nib;
x1=0; x0=w;
y1=-d; y0=h;
numeric theta; theta=angle(z0-z1);
pos1(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(180+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z2l=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
endchar;
enddef;

UpperHead(2,2/5,1);
UpperHead(15,1/3,1);
UpperHead(28,1/4,1);
UpperHead(41,1/5,1);
UpperHead(54,1/6,1);

def LowerHead (expr ChCode, ChWidthFrac, ChHeightFrac)=

beginchar(ChCode,ChWidthFrac*18u#,ChHeightFrac*18u#,0#);
adjust_fit(0,0); pickup crisp.nib;
x1=w ; x0= 0;
y1=h;  y0=-d;
numeric theta; theta=angle(z1-z0);
pos1(rule_thickness,-90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90-(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(45-theta) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2r=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
endchar;
enddef;

LowerHead(3,2/5,1);
LowerHead(16,1/3,1);
LowerHead(29,1/4,1);
LowerHead(42,1/5,1);
LowerHead(55,1/6,1);


def UpperTopBarb (expr ChCode, ChWidthFrac,ChHeightFrac)=

beginchar(ChCode,ChWidthFrac*18u#,ChHeightFrac*18u#,0#);
adjust_fit(0,0); pickup crisp.nib;
x1=0; x0=w;
y1=-d; y0=h;
numeric theta; theta=angle(z0-z1);
pos1(rule_thickness,90+theta);
pos0(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(180+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z2l=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r{dir -(90-theta)}..{z1-z0}z0l--z2l--cycle;
endchar;
enddef;






UpperTopBarb(4,2/5,1);
UpperTopBarb(17,1/3,1);
UpperTopBarb(30,1/4,1);
UpperTopBarb(43,1/5,1);
UpperTopBarb(56,1/6,1);

def UpperBotBarb (expr ChCode, ChWidthFrac,ChHeightFrac)=

beginchar(ChCode,ChWidthFrac*18u#,ChHeightFrac*18u#,0#);

adjust_fit(0,0); pickup crisp.nib;
x1=0; x0=w;
y1=-d; y0=h;
numeric theta; theta=angle(z0-z1);
pos1(rule_thickness,90+theta);
pos0(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(180+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z2l=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
filldraw z2r{dir (90+theta)}..{z1-z0}z0r--z2l--cycle;
endchar;
enddef;
UpperBotBarb(5,2/5,1);
UpperBotBarb(18,1/3,1);
UpperBotBarb(31,1/4,1);
UpperBotBarb(44,1/5,1);
UpperBotBarb(57,1/6,1);


def LowerTopBarb (expr ChCode, ChWidthFrac,ChHeightFrac)=

beginchar(ChCode,ChWidthFrac*18u#,ChHeightFrac*18u#,0#);

adjust_fit(0,0); pickup crisp.nib;
x1=w ; x0=0;
y1=h;  y0=-d;
numeric theta; theta=angle(z1-z0);
pos1(rule_thickness,90+theta);
pos0(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90-(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(45-theta) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2r=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
filldraw z2l{dir -(90-theta)}..{z1-z0}z0l--z2r--cycle;
endchar;
enddef;



LowerTopBarb(6,2/5,1);
LowerTopBarb(19,1/3,1);
LowerTopBarb(32,1/4,1);
LowerTopBarb(45,1/5,1);
LowerTopBarb(58,1/6,1);

def LowerBotBarb (expr ChCode, ChWidthFrac,ChHeightFrac)=
beginchar(ChCode,ChWidthFrac*18u#,ChHeightFrac*18u#,0#);
adjust_fit(0,0); pickup crisp.nib;
x1=w ; x0=0;
y1=h;  y0=-d;
numeric theta,delta;theta=angle(z1-z0);
pos1(rule_thickness,90+theta);
pos0(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90-(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(45-theta) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2r=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2l{dir (90+theta)}..{z1-z0}z0r--z2r--cycle;
endchar;
enddef;


LowerBotBarb(7,2/5,1);
LowerBotBarb(20,1/3,1);
LowerBotBarb(33,1/4,1);
LowerBotBarb(46,1/5,1);
LowerBotBarb(59,1/6,1);

def LowerTopHook (expr ChCode, ChWidthFrac,ChHeightFrac)=
compute_spread(.45x_height#,.55x_height);
beginchar(ChCode,ChWidthFrac*18u#,ChHeightFrac*18u#,0#);
adjust_fit(0,0); pickup crisp.nib;
x1=(w) ; x0= 0;
y1=h;  y0=-d;
numeric theta; theta=angle(z1-z0);
pos1(rule_thickness,-90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90+theta) xscaled spread yscaled spread;
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2l=z0;
z9=.381966[.5[z3,z4],z0];
pickup rule.nib;
z40= 1/2[z0,z4] + dir (180+theta) xscaled 2.5u yscaled 2.5u;
draw z0{z0-z1}..{z4-z0}z40..{z1-z0}z4;
penlabels(0,1,2,3,4,5,6,9); endchar;
enddef;

LowerTopHook(8,2/5,1);
LowerTopHook(21,1/3,1);
LowerTopHook(34,1/4,1);
LowerTopHook(47,1/5,1);
LowerTopHook(60,1/6,1);

def LowerBotHook (expr ChCode, ChWidthFrac, ChHeightFrac)=
compute_spread(.45x_height#,.55x_height);
beginchar(ChCode,ChWidthFrac*18u#,ChHeightFrac*18u#,0#);
adjust_fit(0,0); pickup crisp.nib;
x1=(w) ; x0= 0;
y1=h;  y0=-d;
numeric theta; theta=angle(z1-z0);
pos1(rule_thickness,-90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90-theta) xscaled spread yscaled spread;
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2l=z0;
z9=.381966[.5[z3,z4],z0];
z40= 1/2[z0,z4] + dir (180+theta) xscaled 2.5u yscaled 2.5u;
pickup rule.nib;
draw z0{z0-z1}..{z4-z0}z40..{z1-z0}z4;
penlabels(0,1,2,3,4,5,6,9); endchar;
enddef;

LowerBotHook(9,2/5,1);
LowerBotHook(22,1/3,1);
LowerBotHook(35,1/4,1);
LowerBotHook(48,1/5,1);
LowerBotHook(61,1/6,1);

def UpperTopHook (expr ChCode, ChWidthFrac, ChHeightFrac)=

beginchar(ChCode,ChWidthFrac*18u#,ChHeightFrac*18u#,0#);
adjust_fit(0,0); pickup crisp.nib;
x1= 0;  x0=(w);
y1=-d; y0=h;
numeric theta,delta; theta=angle(z0-z1); delta=3u++.24asc_height;
if abs(theta-45)<2.5: theta:=45; y1:=y0+x1-x0; fi % near-45$^\circ$ angle
pos1(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90+theta) xscaled (spread) yscaled (spread);
%z3=z0+ dir -(180+(45-theta)) xscaled (delta+eps) yscaled (delta+eps);
z2r=z0;
z9=.381966[.5[z3,z4],z0];
%penstroke z2e..{z3-z9}z3e;
z40= 1/2[z0,z4] + dir theta xscaled 2.5u yscaled 2.5u;
pickup rule.nib;
draw z0{z0-z1}..{z4-z0}z40..{z1-z0}z4;
penlabels(0,1,2,3,4,5,6,9); endchar;
enddef;
UpperTopHook(10,2/5,1);
UpperTopHook(23,1/3,1);
UpperTopHook(36,1/4,1);
UpperTopHook(49,1/5,1);
UpperTopHook(62,1/6,1);

def UpperBotHook (expr ChCode, ChWidthFrac, ChHeightFrac)=

beginchar(ChCode,ChWidthFrac*18u#,ChHeightFrac*18u#,0#);
adjust_fit(0,0); pickup crisp.nib;
x1= 0;  x0=(w);
y1=-d; y0=h;
numeric theta,delta; theta=angle(z0-z1); delta=3u++.24asc_height;
if abs(theta-45)<2.5: theta:=45; y1:=y0+x1-x0; fi % near-45$^\circ$ angle
pos1(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90-theta) xscaled (spread) yscaled (spread);
%z3=z0+ dir -(180+(45-theta)) xscaled (delta+eps) yscaled (delta+eps);
z2r=z0;
z9=.381966[.5[z3,z4],z0];
z40= 1/2[z0,z4] + dir theta xscaled 2.5u yscaled 2.5u;
%penstroke z2e..{z3-z9}z3e;

pickup rule.nib;
draw z0{z0-z1}..{z4-z0}z40..{z1-z0}z4;
penlabels(0,1,2,3,4,5,6,9); endchar;
enddef;
UpperBotHook(11,2/5,1);
UpperBotHook(24,1/3,1);
UpperBotHook(37,1/4,1);
UpperBotHook(50,1/5,1);
UpperBotHook(63,1/6,1);

def Squiggle (expr ChCode, ChWidthFrac, ChHeightFrac)=

beginchar(ChCode,ChWidthFrac*18u#,ChHeightFrac*18u#,0#);
adjust_fit(0,0);
x0= 0; x1=(w);
y0=-d; y1=h;
numeric theta,delta; theta=angle(z1-z0);
delta=3u;
z2=.5/6[z0,z1];
z8=5.5/6[z0,z1];
z3=1/6[z0,z1] + dir (90+theta) xscaled (delta+eps) yscaled (delta+eps);
z5=3/6[z0,z1] + dir (90+theta) xscaled (delta+eps) yscaled (delta+eps);
z7=5/6[z0,z1] + dir (90+theta) xscaled (delta+eps) yscaled (delta+eps);
z4=2/6[z0,z1] + dir -(90-theta) xscaled (delta+eps) yscaled (delta+eps);
z6=4/6[z0,z1] + dir -(90-theta) xscaled (delta+eps) yscaled (delta+eps);

pickup pencircle scaled rule_thickness;
draw z0--z2--z3--z4--z5--z6--z7--z8--z1;
penlabels(1,2); endchar;
enddef;

Squiggle(12,2/5,1);
Squiggle(25,1/3,1);
Squiggle(38,1/4,1);
Squiggle(51,1/5,1);
Squiggle(64,1/6,1);

def RevShaft (expr ChCode,ChHeightFrac,ChDepthFrac)=

beginchar(ChCode,18u#,ChHeightFrac*18u#,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1= 0; x0=(w);
y1=h; y0=-d;
pickup pencircle scaled rule_thickness;
draw z1--z0;
penlabels(1,2); endchar;
enddef;

RevShaft(65,0,1/6);
RevShaft(78,0,1/5);
RevShaft(91,0,1/4);
RevShaft(104,0,1/3);


def RevDashedShaft (expr ChCode, ChHeightFrac, ChDepthFrac)=

beginchar(ChCode,18u#,ChHeightFrac*18u#,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1= 0; x0=(w);
y1=h; y0=-d;
numeric theta,delta; theta=angle(z0-z1); delta=3u++.24asc_height;
if abs(theta-45)<2.5: theta:=45; y1:=y0+x1-x0; fi % near-45$^\circ$ angle
pos1(rule_thickness,90+theta); pos2(1.5rule_thickness,90+theta);
x2= w;
y2=-d;
pickup pencircle scaled rule_thickness;
draw z1--1/6z2;
draw 2/6z2--4/6z2;
draw 5/6z2--z2;
penlabels(1,2); endchar;
enddef;

RevDashedShaft(66,0,1/6);
RevDashedShaft(79,0,1/5);
RevDashedShaft(92,0,1/4);
RevDashedShaft(105,0,1/3);

def RevUpperHead (expr ChCode, ChHeightFrac, ChDepthFrac)=

beginchar(ChCode,18u#,ChHeightFrac*18u#,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=0; x0=w;
y1=h; y0=-d;
numeric theta; theta=angle(z0-z1);
pos1(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(180+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z2l=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
endchar;
enddef;

RevUpperHead(67,0,1/6);
RevUpperHead(80,0,1/5);
RevUpperHead(93,0,1/4);
RevUpperHead(106,0,1/3);

def RevLowerHead (expr ChCode, ChHeightFrac, ChDepthFrac)=

beginchar(ChCode,18u#,ChHeightFrac*18u#,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=w ; x0= 0;
y1=-d;  y0=h;
numeric theta; theta=angle(z1-z0);
pos1(rule_thickness,-90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90-(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(45-theta) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2r=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
penlabels(0,1,2,3,4,5,6,9); endchar;
enddef;

RevLowerHead(68,0,1/6);
RevLowerHead(81,0,1/5);
RevLowerHead(94,0,1/4);
RevLowerHead(107,0,1/3);

def RevUpperTopBarb (expr ChCode, ChHeightFrac, ChDepthFrac)=

beginchar(ChCode,18u#,ChHeightFrac*18u#,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=0; x0=w;
y1=h; y0=-d;
numeric theta; theta=angle(z0-z1);
pos1(rule_thickness,90+theta);
pos0(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(180+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z2l=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r{dir (270+theta)}..{z1-z0}z0l--z2l--cycle;
endchar;
enddef;

RevUpperTopBarb(69,0,1/6);
RevUpperTopBarb(82,0,1/5);
RevUpperTopBarb(95,0,1/4);
RevUpperTopBarb(108,0,1/3);

def RevUpperBotBarb (expr ChCode,ChHeightFrac,ChDepthFrac)=

beginchar(ChCode,18u#,ChHeightFrac*18u#,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=0; x0=w;
y1=h; y0=-d;
numeric theta; theta=angle(z0-z1);
pos1(rule_thickness,90+theta);
pos0(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(180+(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z2l=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
filldraw z2r{dir (90+theta)}..{z1-z0}z0r--z2l--cycle;

endchar;
enddef;

RevUpperBotBarb(70,0,1/6);
RevUpperBotBarb(83,0,1/5);
RevUpperBotBarb(96,0,1/4);
RevUpperBotBarb(109,0,1/3);

def RevLowerTopBarb (expr ChCode, ChHeightFrac, ChDepthFrac)=

beginchar(ChCode,18u#,ChHeightFrac*18u#,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=w ; x0=0;
y1=-d;  y0=h;

numeric theta; theta=angle(z1-z0);
pos1(rule_thickness,90+theta);
pos0(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90-(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(45-theta) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2r=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
filldraw z2l{dir (180+90+theta)}..{z1-z0}z0l--z2r--cycle;
endchar;
enddef;

RevLowerTopBarb(71,0,1/6);
RevLowerTopBarb(84,0,1/5);
RevLowerTopBarb(97,0,1/4);
RevLowerTopBarb(110,0,1/3);


def RevLowerBotBarb (expr ChCode, ChHeightFrac,ChDepthFrac)=

beginchar(ChCode,18u#,ChHeightFrac*18u#,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=w ; x0=0;
y1=-d;  y0=h;
numeric theta,delta;theta=angle(z1-z0);
pos1(rule_thickness,90+theta);
pos0(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90-(45-theta)) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir -(45-theta) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2r=z0;
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2l{dir (90+theta)}..{z1-z0}z0r--z2r--cycle;

endchar;
enddef;

RevLowerBotBarb(72,0,1/6);
RevLowerBotBarb(85,0,1/5);
RevLowerBotBarb(98,0,1/4);
RevLowerBotBarb(111,0,1/3);

def RevLowerTopHook (expr ChCode, ChHeightFrac, ChDepthFrac)=
compute_spread(.45x_height#,.55x_height);
beginchar(ChCode,18u#,ChHeightFrac*18u#,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=(w) ; x0= 0;
y1=-d;  y0=h;
numeric theta; theta=angle(z1-z0);
pos1(rule_thickness,-90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90+theta) xscaled spread yscaled spread;
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2l=z0;
z9=.381966[.5[z3,z4],z0];
pickup rule.nib;
z40= 1/2[z0,z4] + dir (180+theta) xscaled 2.5u yscaled 2.5u;
draw z0{z0-z1}..{z4-z0}z40..{z1-z0}z4;
endchar;
enddef;

RevLowerTopHook(73,0,1/6);
RevLowerTopHook(86,0,1/5);
RevLowerTopHook(99,0,1/4);
RevLowerTopHook(112,0,1/3);


def RevLowerBotHook (expr ChCode, ChHeightFrac, ChDepthFrac)=
compute_spread(.45x_height#,.55x_height);
beginchar(ChCode,18u#,ChHeightFrac*18u#,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1=(w) ; x0= 0;
y1=-d;  y0=h;
numeric theta,delta; theta=angle(z1-z0); delta=3u++.24asc_height;
if abs(theta-45)<2.5: theta:=45; y1:=y0+x1-x0; fi % near-45$^\circ$ angle
pos1(rule_thickness,-90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90-theta) xscaled spread yscaled spread;
%dir (90-theta) xscaled (delta+eps) yscaled (delta+eps);
%z3=z0+ dir -(45-theta) xscaled (delta+eps) yscaled (delta+eps);
pos5(bar,90-(45-theta)); z5l=z0; pos6(bar,-(45-theta)); z6l=z0;
z2l=z0;
z9=.381966[.5[z3,z4],z0];
z40= 1/2[z0,z4] + dir (180+theta) xscaled 2.5u yscaled 2.5u;
pickup rule.nib;
draw z0{z0-z1}..{z4-z0}z40..{z1-z0}z4;
%penstroke z2e..{z4-z9}z4e;

penlabels(0,1,2,3,4,5,6,9); endchar;
enddef;

RevLowerBotHook(74,0,1/6);
RevLowerBotHook(87,0,1/5);
RevLowerBotHook(100,0,1/4);
RevLowerBotHook(113,0,1/3);

def RevUpperTopHook (expr ChCode, ChHeightFrac, ChDepthFrac)=

beginchar(ChCode,18u#,ChHeightFrac*18u#,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1= 0; x0=(w);
y1=h; y0=-d;
numeric theta; theta=angle(z0-z1);
pos1(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir (90+theta) xscaled (spread) yscaled (spread);
z2r=z0;
z9=.381966[.5[z3,z4],z0];
z40= 1/2[z0,z4] + dir theta xscaled 2.5u yscaled 2.5u;
pickup rule.nib;
draw z0{z0-z1}..{z4-z0}z40..{z1-z0}z4;
endchar;
enddef;

RevUpperTopHook(75,0,1/6);
RevUpperTopHook(88,0,1/5);
RevUpperTopHook(101,0,1/4);
RevUpperTopHook(114,0,1/3);

def RevUpperBotHook (expr ChCode, ChHeightFrac, ChDepthFrac)=
beginchar(ChCode,18u#,ChHeightFrac*18u#,ChDepthFrac*18u#);
adjust_fit(0,0); pickup crisp.nib;
x1= 0; x0=(w);
y1=h; y0=-d;
numeric theta; theta=angle(z0-z1);
pos1(rule_thickness,90+theta);
pos2(1.5rule_thickness,theta);
pos3(bar,theta); pos4(bar,theta);
z4=z0+ dir -(90-theta) xscaled (spread) yscaled (spread);
z2r=z0;
z9=.381966[.5[z3,z4],z0];
z40= 1/2[z0,z4] + dir theta xscaled 2.5u yscaled 2.5u;
pickup rule.nib;
draw z0{z0-z1}..{z4-z0}z40..{z1-z0}z4;
penlabels(0,1,2,3,4,5,6,9); endchar;
enddef;
RevUpperBotHook(76,0,1/6);
RevUpperBotHook(89,0,1/5);
RevUpperBotHook(102,0,1/4);
RevUpperBotHook(115,0,1/3);



def RevSquiggle (expr ChCode, ChHeightFrac,ChDepthFrac)=

beginchar(ChCode,18u#,ChHeightFrac*18u#,ChDepthFrac*18u#);
adjust_fit(0,0);
x0= 0; x1=(w);
y0=h; y1=-d;
numeric theta,delta; theta=angle(z1-z0);
delta=3u;
z2=.5/6[z0,z1];
z8=5.5/6[z0,z1];
z3=1/6[z0,z1] + dir (90+theta) xscaled (delta+eps) yscaled (delta+eps);
z5=3/6[z0,z1] + dir (90+theta) xscaled (delta+eps) yscaled (delta+eps);
z7=5/6[z0,z1] + dir (90+theta) xscaled (delta+eps) yscaled (delta+eps);
z4=2/6[z0,z1] + dir -(90-theta) xscaled (delta+eps) yscaled (delta+eps);
z6=4/6[z0,z1] + dir -(90-theta) xscaled (delta+eps) yscaled (delta+eps);

pickup pencircle scaled rule_thickness;
draw z0--z2--z3--z4--z5--z6--z7--z8--z1;
penlabels(1,2); endchar;
enddef;


RevSquiggle(77,0,1/6);
RevSquiggle(90,0,1/5);
RevSquiggle(103,0,1/4);
RevSquiggle(116,0,1/3);


beginchar(117,0,0,0);
adjust_fit(0,0); pickup rule.nib;
lft x0 =0;
y0=0;
lft x2=0;
y2=y0;
pos2(1.5rule_thickness,90);
pos3(bar,90); pos4(bar,90);
z4=z0+ dir (270-45) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir (270+45) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
endchar;

beginchar(118,0,10/3pt#,0);
adjust_fit(0,0); pickup rule.nib;
lft x0 =0; y0=0;
lft x2=0;  y2=y0;
pos2(1.5rule_thickness,270);
pos3(bar,270); pos4(bar,270);
z4=z0+ dir (90-45) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir (90+45) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
endchar;

beginchar(119,0,0,0);
adjust_fit(0,0); pickup rule.nib;
lft x0 =0;
y0=0;
lft x2=0;
y2=y0;
pos0(rule_thickness,0);
pos2(1.5rule_thickness,90);
pos3(bar,90); pos4(bar,80);
z4=z0+ dir (270-45) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir (270+45) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z4-z9}z4r---{z9-z4}z4l..z2l--cycle;
filldraw z2r{right}..{down}z0r--z2l--cycle;
endchar;

beginchar(120,0,0,0);
adjust_fit(0,0); pickup rule.nib;
lft x0 =0;
y0=0;
lft x2=0;
y2=0;
pos0(rule_thickness,0);
pos2(1.5rule_thickness,90);
pos3(bar,90); pos4(bar,80);
z4=z0+ dir (270-45) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z3=z0+ dir (270+45) scaled ((3u++.24asc_height)+eps-rule_thickness-.5crisp.breadth);
z9=.381966[.5[z3,z4],z0];
pickup crisp.nib;
filldraw z2r..{z3-z9}z3r---{z9-z3}z3l..z2l--cycle;
filldraw z2r{left}..{down}z0l--z2l--cycle;
endchar;

compute_spread(.45x_height#,.55x_height);
beginchar(121,0,10/3pt#,0#);
adjust_fit(0,0); pickup rule.nib;
lft x0=0;
y0=0;
z4=z0+ dir 180 xscaled spread yscaled spread;
pickup rule.nib;
top z40= 1/2[z0,z4] + dir 90 xscaled 2.5u yscaled 2.5u;
draw z0{up}..{z4-z0}z40..{down}z4;
penlabels(0,1,2,3,4,5,6,9); endchar;

compute_spread(.45x_height#,.55x_height);
beginchar(122,0,10/3pt#,0#);
adjust_fit(0,0); pickup rule.nib;
lft x0=0;
y0=0;
z4=z0- dir 180 xscaled spread yscaled spread;
pickup rule.nib;
top z40= 1/2[z0,z4] + dir 90 xscaled 2.5u yscaled 2.5u;
draw z0{up}..{z4-z0}z40..{down}z4;
penlabels(0,1,2,3,4,5,6,9); endchar;


beginchar(123,0,18u#,0#);
adjust_fit(0,0);
pickup rule.nib;
lft x0=lft x1=0;
y0=-d; y1=h;
numeric theta,delta; theta=angle(z1-z0);
delta=3u;
z2=.5/6[z0,z1];
z8=5.5/6[z0,z1];
z3=1/6[z0,z1] + dir (90+theta) xscaled (delta+eps) yscaled (delta+eps);
z5=3/6[z0,z1] + dir (90+theta) xscaled (delta+eps) yscaled (delta+eps);
z7=5/6[z0,z1] + dir (90+theta) xscaled (delta+eps) yscaled (delta+eps);
z4=2/6[z0,z1] + dir -(90-theta) xscaled (delta+eps) yscaled (delta+eps);
z6=4/6[z0,z1] + dir -(90-theta) xscaled (delta+eps) yscaled (delta+eps);

pickup pencircle scaled rule_thickness;
draw z0--z2--z3--z4--z5--z6--z7--z8--z1;
penlabels(1,2); endchar;
bye.                                                                                                                                                                                                                                                                                                                                                                                                  (3u++.24asc_height)+eps-rule_thickness