summaryrefslogtreecommitdiff
path: root/fonts/wsuipa/mf/igreekl.mf
blob: 46989fcfddfb946516313f3f4798ed06c2df6968 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
% Please see the file LICENCE-wsuipa.txt for licensing information.

% This is IGREEKL.MF in text format, as of Apr. 22, 1989.
% This lowercase Greek alphabet was prepared by D. E. Knuth in December, 1979,
% inspired by the Monotype faces used in {\sl The Art of Computer Programming}.
% (It has been designed for math formulas, not Greek texts.)
% The programs were revised for the new \MF\ conventions in 1985.
 
% Character codes \0013--\0047 are generated.
 
cmchar "Lowercase Greek epsilon";
beginchar(oct"030",8.25u#,x_height#,0);
italcorr x_height#*slant-.5u#;
adjust_fit(0,0);
numeric top_thickness,mid_thickness,bot_thickness;
top_thickness=max(fine.breadth,vround(slab-2vair_corr));
mid_thickness=max(fine.breadth,vround 2/3vair);
bot_thickness=max(fine.breadth,vround(slab-vair_corr));
pickup fine.nib; pos2(top_thickness,90); top y2l=h+o;
pos3(max(.6fine.breadth,.35[curve,cap_curve]-stem_corr),180);
lft x3l=hround(1.25u);
 pos9(bot_thickness,angle(-2u,-h));
 rt x9l=hround w-.75u; top y9l=vround .25h-o;
 y9r:=good.y y9r-eps; x9r:=good.x x9r;
pos4(vair,-90); pos5(vair,-90);
pos6(mid_thickness,90); x2=x6=x8=.5[1.5u,x9];
pos7(max(.6fine.breadth,.35[curve,cap_curve]-stem_corr),180);
lft x7l=hround(.75u);
lft x5=min(hround 4u,lft x6)-eps;
pos8(bot_thickness,-90); bot y8r=-o;
y3=.6[top y4l,bot y2l]; y7=.5[bot y6l,top y8l];
top y5l=vround(.54h+.5vair); y5r=y6l;
x4=1/3[x5,x3l]; z4=z5+whatever*(150u,h);
filldraw stroke pulled_super_arc.e(2,3)(.5superpull)
 & z3e{down}...z4e---z5e;  % upper bowl
filldraw z5r--z6l--z6r--z5l---cycle;  % middle tip
filldraw stroke pulled_super_arc.e(6,7)(.5superpull)
 & pulled_super_arc.e(7,8)(.5superpull);  % lower bowl
numeric bulb_diam[];
 bulb_diam1=flare-.75(cap_stem-stem); bulb_diam2=flare+cap_stem-stem;
 pos0(bulb_diam1,0); pos1(hair,0);
 lft x0r=hround w-1.25u; y0=min(.9h-.5bulb_diam1,.75h+.5bulb_diam1);
 bulb(2,1,0);  % upper bulb
 filldraw stroke term.e(8,9,right,1,4);  % lower terminal
penlabels(0,1,2,3,4,5,6,7,8,9,10); endchar;
 
cmchar "Lowercase Greek reversed epsilon";
beginchar(oct"31",8.5u#,x_height#,0);
italcorr x_height#*slant-.5u#;
adjust_fit(0,0);
numeric top_thickness,mid_thickness,bot_thickness;
top_thickness=max(fine.breadth,vround(slab-2vair_corr));
mid_thickness=max(fine.breadth,vround 2/3vair);
bot_thickness=max(fine.breadth,vround(slab-vair_corr));
pickup fine.nib; pos2(top_thickness,90); top y2l=h+o;
pos3(max(.6fine.breadth,.35[curve,cap_curve]-stem_corr),0);
rt x3r=hround(w-1.25u);
pos4(vair,-90); pos5(vair,-90);
pos6(mid_thickness,90); x2=x6=x8=.5[1.5u,x7];
pos7(max(.6fine.breadth,.35[curve,cap_curve]-stem_corr),0);
rt x7r=hround(w-.75u);
lft x5=min(hround 4u,lft x6)-eps;
pos8(bot_thickness,-90); bot y8r=-o;
y3=.6[top y4l,bot y2l]; y7=.5[bot y6l,top y8l];
top y5l=vround(.54h+.5vair); y5r=y6l;
x4=1/3[x5,x3l]; z4=z5+whatever*(150u,h);
filldraw stroke pulled_super_arc.e(2,3)(.5superpull)
 & z3e{down}...z4e---z5e;  % upper bowl
filldraw z5r--z6l--z6r--z5l---cycle;  % middle tip
filldraw stroke pulled_super_arc.e(6,7)(.5superpull)
 & pulled_super_arc.e(7,8)(.5superpull);  % lower bowl
numeric bulb_diam[];
 bulb_diam1=flare-.75(cap_stem-stem); bulb_diam2=flare+cap_stem-stem;
 pos0(bulb_diam1,180); pos1(hair,180);
 lft x0r=hround 1.25u; y0=min(.9h-.5bulb_diam1,.75h+.5bulb_diam1);
 bulb(2,1,0);  % upper bulb
 pos9(bot_thickness,angle(-2u,-h));
 lft x9r=hround .75u; top y9l=vround .25h-o;
 y9r:=good.y y9r-eps; x9l:=good.x x9l;
 filldraw stroke term.e(8,9,left,1,4);  % lower terminal
penlabels(0,1,2,3,4,5,6,7,8,9,10); endchar;
 
cmchar "Right-hook lowercase Greek reversed epsilon";
beginchar(oct"32",11.5u#,x_height#,0);
italcorr x_height#*slant-.5u#;
adjust_fit(0,0);
numeric top_thickness,mid_thickness,bot_thickness;
top_thickness=max(fine.breadth,vround(slab-2vair_corr));
mid_thickness=max(fine.breadth,vround 2/3vair);
bot_thickness=max(fine.breadth,vround(slab-vair_corr));
pickup fine.nib; pos2(top_thickness,90); top y2r=h+o;
pos3(.3[curve,cap_curve]-stem_corr,0);
rt x3r=hround(.78w-1.25u);
pos4(vair,-90); pos5(vair,-90);
pos6(mid_thickness,90); x2=x6=x8=.5[1.5u,x7];
pos7(.3[curve,cap_curve]-stem_corr,0);
rt x7r=hround(.78w-.75u);
lft x5=min(hround 4u,lft x6)-eps;
pos8(bot_thickness,-90); bot y8r=-o;
y3=.6[top y4l,bot y2l]; y7=.5[bot y6l,top y8l];
top y5l=vround(.54h+.5vair); y5r=y6l;
x4=1/3[x5,x3l]; z4=z5+whatever*(150u,h);
filldraw stroke pulled_super_arc.e(2,3)(.5superpull)
 & z3e{down}...z4e---z5e;                             % upper bowl
filldraw z5r--z6l--z6r--z5l---cycle;                  % middle tip
filldraw stroke pulled_super_arc.e(6,7)(.5superpull)
 & pulled_super_arc.e(7,8)(.5superpull);              % lower bowl
numeric bulb_diam[];
 bulb_diam1=flare-.5(cap_stem-stem); bulb_diam2=flare+cap_stem-stem;
 pos0(bulb_diam1,180); pos1(hair,180);
 lft x0r=hround 1.25u; y0=min(.9h-.5bulb_diam1,.75h+.5bulb_diam1);
 bulb(2,1,0);                                         % upper bulb
 pos9(bot_thickness,angle(-2u,-h));
 lft x9r=hround .75u; top y9l=vround .25h-o;
 y9r:=good.y y9r-eps; x9l:=good.x x9l;
 filldraw stroke term.e(8,9,left,1,4);                % lower terminal
%   right hook
pos10(hair,0); pos11(hair,0); pos12(hair,0);
pos13(hair,90); pos14(hair,180);
z10=z3; top y11=h; rt x11r=hround(x3r+2u)=rt x12r;
y12=.65[y11,y13]=y14; x13=.5[x11,x14];
bot y13l=.5h; x14l=w;
filldraw stroke z10e--z11e;
filldraw stroke z11e--z12e...z13e...z14e;
penlabels(0,1,2,3,4,5,6,7,8,9,10,11,12,13,14); endchar;
 
cmchar "Lowercase Greek closed reversed epsilon";
beginchar(oct"33",8.5u#,x_height#,0);
italcorr x_height#*slant-.5u#;
adjust_fit(0,0);
numeric top_thickness,mid_thickness,bot_thickness;
top_thickness=max(fine.breadth,vround(slab-2vair_corr));
mid_thickness=max(fine.breadth,vround 2/3vair);
bot_thickness=max(fine.breadth,vround(slab-vair_corr));
pickup fine.nib; pos2(top_thickness,90); top y2r=h+o;
pos3(max(.6fine.breadth,.35[curve,cap_curve]-stem_corr),0);
rt x3r=hround(w-1.25u);
pos4(vair,-90); pos5(vair,-90);
pos5'(slab,180); y5'=y5; x5'=0;
pos6(mid_thickness,90); x2=x6=x8=.5[1.5u,x7];
pos7(max(.6fine.breadth,.35[curve,cap_curve]-stem_corr),0);
rt x7r=hround(w-.75u);
lft x5=min(hround 4u,lft x6)-eps;
pos8(bot_thickness,-90); bot y8r=-o;
y3=.6[top y4l,bot y2l]; y7=.5[bot y6l,top y8l];
top y5l=vround(.54h+.5vair); y5r=y6l;
x4=1/3[x5,x3l]; z4=z5+whatever*(150u,h);
filldraw stroke z8e{left}...{up}z5'e...z2e
&pulled_super_arc.e(2,3)(.5superpull)
 & z3e{down}...z4e---z5e;  % upper bowl
filldraw z5r--z6l--z6r--z5l---cycle;  % middle tip
filldraw stroke pulled_super_arc.e(6,7)(.5superpull)
 & pulled_super_arc.e(7,8)(.5superpull);  % lower bowl
penlabels(2,3,4,5,6,7,8,,5'); endchar;
 
cmchar "Lowercase Greek theta";
beginchar(oct"123",8.25u#,asc_height#,0);
italcorr .7asc_height#*slant+.5curve#-u#;
adjust_fit(0,0); pickup fine.nib;
pos1(vair,90); pos2(curve,180); pos3(vair,270); pos4(curve,360);
x1=x3=.5w; lft x2r=hround(1.5u-.5curve); x4=w-x2;
top y1r=h+oo; y2=y4=.5[y1,y3]; bot y3r=-oo;
filldraw stroke pulled_arc.e(1,2) & pulled_arc.e(2,3)
 & pulled_arc.e(3,4) & pulled_arc.e(4,1);  % bowl
pos2'(bar,90); pos4'(bar,90); z2'=z2l; z4'=z4l;
filldraw stroke z2'e--z4'e;  % bar
math_fit(-.3asc_height#*slant-u#+.5curve#,ic#-.5u#);
penlabels(1,2,3,4); endchar;
 
cmchar "Lowercase Greek iota";
beginchar(oct"051",5u#,x_height#,0);
italcorr 1/3x_height#*slant+.5hair#+.5u#;
adjust_fit(if monospace: u#,u# else: 0,0 fi); pickup fine.nib;
pos1(stem,0); lft x1l=hround(1.5u-.5stem); y1+.5stem=h+oo;
x2=x1-.25u; x4=w; hook_out(2,3,4)(skewed);  % closing hook
filldraw circ_stroke z1e{down}...{-u,-x_height}z2e;  % stem
math_fit(0,ic#); penlabels(1,2,3,4); endchar;
 
cmchar "Lowercase Greek lambda";
beginchar(oct"62",10.5u#,asc_height#,0);
adjust_fit(0,0); pickup fine.nib;
pos1(vair,90); lft x1=hround .1u; top y1r=h;
x2=x1+2u; y2=.7[x_height,h]; x3=w-2u; bot y4=-oo; y3=max(.07h,y4+eps);
z4-(.25u,0)=whatever[z2,z3]; numeric theta; theta=angle(z2-z3)-90;
pos2(stem,theta); pos3(stem,theta); pos4(stem,0);
filldraw circ_stroke z1e{right}...z2e---z3e
 ...{2(x4e-x3e),y4e-y3e}z4e;  % long diagonal
y5=.5[bar_height,x_height]; z5=whatever[z2,z3];
x6=1.5u; y6-.5stem=-oo; pos5(hair,theta-90); pos6(stem,angle(z5-z6)-90);
filldraw circ_stroke z6e--z5e; % short diagonal
penlabels(1,2,3,4,5,6); endchar;
 
cmchar "Lowercase crossed Greek lambda";
beginchar(oct"063",10.5u#,asc_height#,0);
adjust_fit(0,0); pickup fine.nib;
pos1(vair,90); lft x1=hround .1u; top y1r=h;
x2=x1+2u; y2=.7[x_height,h]; x3=w-2u; bot y4=-oo; y3=max(.07h,y4+eps);
z4-(.25u,0)=whatever[z2,z3]; numeric theta; theta=angle(z2-z3)-90;
pos2(stem,theta); pos3(stem,theta); pos4(stem,0);
filldraw circ_stroke z1e{right}...z2e---z3e
 ...{2(x4e-x3e),y4e-y3e}z4e;  % long diagonal
y5=.5[bar_height,x_height]; z5=whatever[z2,z3];
x6=1.5u; y6-.5stem=-oo; pos5(hair,theta-90); pos6(stem,angle(z5-z6)-90);
filldraw circ_stroke z6e--z5e; % short diagonal
pickup fine.nib;
pos7(bar,125); pos8(bar,125);
x7=x1; y7 = .57h; top y8=.9h;
x8=.5[x5,x4];
filldraw stroke z7e--z8e;      % crossbar
penlabels(1,2,3,4,5,6,7,8); endchar;
 
cmchar "Script v (Lowercase Greek upsilon)";
beginchar(oct"131",9u#,x_height#,0);
italcorr x_height#*slant;
adjust_fit(0,0); pickup fine.nib; interim superness:=more_super;
x0=0; x2=x3+.25u; pos3(stem,-180); lft x3r=hround(2.5u-.5stem);
hook_in(0,1,2)(skewed);  % opening hook
pos2'(stem,-180); z2'=z2; pos4(vair,-90); pos5(hair,0);
x4=.5w+u; rt x5r=hround(w-.5u); y3=.7[y4,y5]; bot y4r=-oo; y5=.57h;
filldraw stroke z2'e{-u,-x_height}...super_arc.e(3,4)
 ..tension atleast 1.05..{up}z5e; % left stem and arc
v_bulb(5,6);  % closing bulb
math_fit(-2/3x_height#*slant+.5hair#+.5u#,2/3ic#);
penlabels(0,1,2,3,4,5,6); endchar;
 
cmchar "Lowercase Greek chi";
beginchar(oct"133",9.5u#,x_height#,desc_depth#);
italcorr x_height#*slant+.5hair#-1.5u#;
adjust_fit(0,0); pickup fine.nib;
pos1(hair,180); pos2(vair,80); pos5(vair,80); pos6(hair,180);
x1-.5hair=hround-.5hair; x6=w-x1; x2=w-x5=u;
y1=y2l-h/8; top y2r=h+oo; bot y5l=-d-oo; y6=y5r+h/8;
z0=.5[z2,z5]; z2'=z2l+(.5u,0); z5'=z5r-(.5u,0);
numeric theta; theta=angle(z5'-z2')+90;
pos3(stem,theta); pos4(stem,theta);
y3r=y2r-h/8; y4l=y5l+h/8; z3l=whatever[z2',z0]; z4r=whatever[z0,z5'];
filldraw stroke z1e{up}...z2e{right}...z3e{z4r-z3l}
 ..z4e{z4r-z3l}...{right}z5e...{up}z6e;  % major diagonal and hooks
x8=w-x7=2u; y7+.5hair=h; y8-.5hair=-d;
numeric theta; theta=angle(z7-z8)-90;
pos7(hair,theta); pos8(hair,theta);
filldraw z7l---z8l..z8r---z7r..cycle;  % minor diagonal
math_fit((desc_depth#-x_height#)*slant+ic#,ic#);
penlabels(0,1,2,2',3,4,5',5,6,7,8); endchar;
 
cmchar "Lowercase Greek omega";
beginchar(oct"076",11u#,x_height#,0);
italcorr x_height#*slant;
adjust_fit(0,0); pickup fine.nib;
pos2(hair,-180); lft x2r=hround.5u; y2=y4=y6=y8=bar_height;
y1+.5hair=h; x1=x2+.75u; pos1(hair,angle(2(x1-x2),y1-y2)+90);
pos3(vstem,-90); pos4(hair,0); pos5(vair,90);
pos6(hair,180); pos7(vstem,270); pos8(hair,360);
bot y3r=bot y7r=-oo; top y5r=vround(.2[y4,h]+.5vair);
x3=.4[x2,x4]; x7+.25u=.6[x6,x8]; rt x8r=hround(w-.5u);
x5+.5stem=hround(.5w+.5stem)+eps;
x5=.5[x4,x6]; rt x4r-lft x6r=min(stem,2hair)+2eps;
if x4l<x6l: x4l:=x6l:=x5; fi
filldraw circ_stroke z1e{2(x2-x1),y2-y1}...z2e{down}...z3e{right}
 ...{up}z4e...{left}z5e;  % left arc
filldraw stroke z5e{left}...z6e{down}...z7e{right}...{up}z8e;  % right arc
v_bulb(8,9);  % closing bulb
math_fit(-bar_height#*slant,2/3ic#); penlabels(1,2,3,4,5,6,7,8,9); endchar;
 
cmchar "Closed lowercase Greek omega";
beginchar(oct"077",11u#,x_height#,0);
italcorr x_height#*slant;
adjust_fit(0,0); pickup fine.nib;
pos2(hair,-180); lft x2r=hround.5u; y2=y4=y6=y8=bar_height;
y1-.5hair=h; x1=.5w; pos1(hair,angle(2(x1-x2),y1-y2)+90);
pos3(vstem,-90); pos4(hair,0); pos5(vair,90);
pos6(hair,180); pos7(vstem,270); pos8(hair,360);
bot y3r=bot y7r=-oo; top y5r=vround(.2[y4,h]+.5vair);
x3=.4[x2,x4]; x7+.25u=.6[x6,x8]; rt x8r=hround(w-.5u);
x5+.5stem=hround(.5w+.5stem)+eps;
x5=.5[x4,x6]; rt x4r-lft x6r=min(stem,2hair)+2eps;
if x4l<x6l: x4l:=x6l:=x5; fi
filldraw circ_stroke z1e{left}...z2e{down}...z3e{right}
 ...{up}z4e...{left}z5e;  % left arc
filldraw stroke z5e{left}...z6e{down}...z7e{right}...{up}z8e...{left}z1e;
  % right arc
penlabels(1,2,3,4,5,6,7,8); endchar;
 
cmchar "The letter baby gamma";
beginchar(oct"041",if serifs: 9.5u# else:9u# fi,x_height#,0);
italcorr x_height#*slant-.05u#;
adjust_fit(serif_fit# if monospace:+\\.5u#,.5u#+ else:,fi\\ serif_fit#);
numeric stem[],outer_jut,xjut,alpha[];
stem1=fudged.stem-4stem_corr; stem2=min(1.5fudged.hair,stem1);
outer_jut=.75jut; xjut= if serifs: (stem1-stem2)/4 else: 0 fi;
x1l=l+letter_fit+.1u+outer_jut; x2r=r-letter_fit-.3u-outer_jut-xjut;
x3l=l+letter_fit+2.5outer_jut+xjut; x4r=r-letter_fit-2outer_jut;
y1=y2=h; y3=y4=.3h; z11=z3;
x10=.5[x3,x4]; y10r=0;
alpha1=diag_ratio(1,stem1,h,x4r-x1l);
alpha2=diag_ratio(1,stem2,h,x2r-x3l);
penpos1(alpha1*stem1,0); penpos2(alpha2*stem2,0);
penpos3(alpha2*stem2,0); penpos4(alpha1*stem1,0);
penpos10(alpha2*stem2,-90); penpos11(alpha2*stem2,180);
if hefty: z0=whatever[z1,z4]=whatever[z2,z3];
 x12=x34=x0; y13=y24=y0;
 z12=whatever[z2l,z3l]; z13=whatever[z2l,z3l];
 z24=whatever[z2r,z3r]; z34=whatever[z2r,z3r];
 forsuffixes $=13,24,34: z$'=.2[z$,z0]; endfor
 fill diag_end(12,1r,.5,1,1l,13')--z13'--diag_end(13',3l,1,.5,3r,34')--z34'
  --diag_end(34',4l,.5,1,4r,24')--z24'
  --diag_end(24',2r,1,.5,2l,12)--z12--cycle; % diagonals
else: fill diag_end(4r,1r,.5,1,1l,4l)
  --diag_end(1l,4l,.5,1,4r,1r)--cycle; % left diagonal
 fill diag_end(2l,3l,.5,1,3r,2r)
  --diag_end(3r,2r,.5,1,2l,3l)--cycle; fi  % right diagonal
filldraw stroke pulled_arc.e(4,10) & pulled_arc.e(10,11);% lower bowl
if serifs: numeric inner_jut[]; pickup tiny.nib;
 prime_points_inside(1,4); prime_points_inside(2,3);
 prime_points_inside(3,2); prime_points_inside(4,1);
 if rt x1'r+jut+.5u+1<=lft x2'l-jut-xjut: inner_jut1=jut;
 else: rt x1'r+inner_jut1+.5u+1=lft x2'l-inner_jut1-xjut; fi
 if rt x3'r+jut+.5u+1<=lft x4'l-jut-xjut: inner_jut2=jut;
 else: rt x3'r+inner_jut2+.5u+1=lft x4'l-inner_jut2-xjut; fi
 dish_serif(1',4,a,1/3,outer_jut,b,2/3,inner_jut1);  % upper left serif
 dish_serif(2',3,e,2/3,inner_jut1+xjut,
  f,1/2,outer_jut+xjut)(dark); fi % upper right serif
penlabels(0,1,2,3,4,10,12,13,24,34); endchar;
 
cmchar "The letter IPA Gamma";
beginchar(oct"040",if serifs: 9.5u# else:9u# fi,x_height#,desc_depth#);
italcorr x_height#*slant-.05u#;
adjust_fit(serif_fit# if monospace:+\\.5u#,.5u#+ else:,fi\\ serif_fit#);
numeric stem[],outer_jut,xjut,alpha[];
stem1=fudged.stem-4stem_corr; stem2=min(fudged.hair,stem1);
outer_jut=.75jut; xjut= if serifs: (stem1-stem2)/4 else: 0 fi;
x1l=l+letter_fit+.1u+outer_jut; x2r=r-letter_fit-.3u-outer_jut-xjut;
x3l=l+letter_fit+2.2outer_jut+xjut; x4r=r-letter_fit-2.2outer_jut;
y1=y2=h; y3=y4=-.25d; z11=z3;
x10=.5[x3,x4]; y10r=-d;
alpha1=diag_ratio(1,stem1,h,x4r-x1l);
alpha2=diag_ratio(1,stem2,h,x2r-x3l);
penpos1(alpha1*stem1,0); penpos2(alpha2*stem2,0);
penpos3(alpha2*stem2,0); penpos4(alpha1*stem1,0);
penpos10(alpha2*stem2,-90); penpos11(alpha2*stem2,180);
if hefty: z0=whatever[z1,z4]=whatever[z2,z3];
 x12=x34=x0; y13=y24=y0;
 z12=whatever[z2l,z3l]; z13=whatever[z2l,z3l];
 z24=whatever[z2r,z3r]; z34=whatever[z2r,z3r];
 forsuffixes $=13,24,34: z$'=.2[z$,z0]; endfor
 fill diag_end(12,1r,.5,1,1l,13')--z13'--diag_end(13',3l,1,.5,3r,34')--z34'
  --diag_end(34',4l,.5,1,4r,24')--z24'
  --diag_end(24',2r,1,.5,2l,12)--z12--cycle; % diagonals
else: fill diag_end(4r,1r,.5,1,1l,4l)
  --diag_end(1l,4l,.5,1,4r,1r)--cycle; % left diagonal
 fill diag_end(2l,3l,.5,1,3r,2r)
  --diag_end(3r,2r,.5,1,2l,3l)--cycle; fi  % right diagonal
filldraw stroke pulled_arc.e(4,10) & pulled_arc.e(10,11);% lower bowl
if serifs: numeric inner_jut[]; pickup tiny.nib;
 prime_points_inside(1,4); prime_points_inside(2,3);
 prime_points_inside(3,2); prime_points_inside(4,1);
 if rt x1'r+jut+.5u+1<=lft x2'l-jut-xjut: inner_jut1=jut;
 else: rt x1'r+inner_jut1+.5u+1=lft x2'l-inner_jut1-xjut; fi
 if rt x3'r+jut+.5u+1<=lft x4'l-jut-xjut: inner_jut2=jut;
 else: rt x3'r+inner_jut2+.5u+1=lft x4'l-inner_jut2-xjut; fi
 dish_serif(1',4,a,1/3,outer_jut,b,2/3,inner_jut1);  % upper left serif
 dish_serif(2',3,e,2/3,inner_jut1+xjut,
  f,1/2,outer_jut+xjut)(dark); fi % upper right serif
penlabels(0,1,2,3,4,10,12,13,24,34); endchar;
 
cmchar "Lowercase Greek gamma";
beginchar(oct"037",10u#,x_height#,desc_depth#);
italcorr x_height#*slant-.5u#;
adjust_fit(0,0); pickup fine.nib;
pos1(hair,180); pos2(vstem+dw,90);
pos4(hair,0); pos5(vair,-90); pos6(hair,-180); pos7(hair,-180);
bot y1=.5772156649h; top y2r=h+oo; y4=y6=-.5d;
bot y5r=-d-o; top y7=h;
lft x1r=hround(.5u-.5hair); x2=3u; rt x4r=hround(w-2.5u); x5=.5[x4,x6];
rt x4r-lft x6r= hround 3/4[hair,stem] + eps; rt x7l=hround(w-.5u);
if x4l<x6l: x4l:=x6l:=x5; fi
pos3(vair,angle(z4-z2)+90); x3=superness[x2,x4]; y3=superness[y4,y2];
filldraw stroke z1e{up}...z2e{right}...z3e{z4-z2}
 ...z4e{down}...{left}z5e; % arc
filldraw stroke z5e{left}...z6e{up}..{2(x7-x6),y7-y6}z7e;  % stem
penlabels(1,2,3,4,5,6,7); endchar;
 
cmchar "Lowercase Greek alpha";
beginchar(oct"002",11u#,x_height#,0);
italcorr max(1/3x_height#*slant+.5hair#+.5u#,x_height#*slant-.5u#);
adjust_fit(0,0); pickup fine.nib;
pos0(2hair,0); pos1(2vair,-90); pos2(curve,-180); pos3(vair,-270);
z4=(w-3.25u,9/16h); z5=(w-2.75u,.5[vair,y4]);
numeric theta; theta=angle(z4-z5)-90;
pos4(stem,theta); pos5(stem,theta);
pos6(vair,90); pos7(hair,180);
rt x0r=hround(w-u); x1=x3=.5w-u; lft x2r=hround(1.5u-.5curve);
x6=w-u; x7+.5hair=hround(w+.5hair-epsilon);
y0=vround .9[bar_height,h]; bot y1r=bot y6l=-oo;
y2=.5[y1,y3]; top y3r=h+oo; y7=1/4bar_height;
filldraw stroke z0e{down}...pulled_arc.e(1,2) & pulled_arc.e(2,3)
 ...z4e---z5e...z6e{right}...{up}z7e; % diagonal, bowl, and hook
penlabels(0,1,2,3,4,5,6,7); endchar;
 
cmchar "Lowercase Greek beta";
beginchar(oct"011",9.5u#,asc_height#,desc_depth#);
italcorr .5[x_height#,asc_height#]*slant-u#;
adjust_fit(0,0); pickup fine.nib;
pos0(1.5hair,180); pos1(1.5hair,180); pos2(vair,90);
pos3(stem,0); pos4(vair,-90); pos5(hair,-180);
pos6(vair,-270); pos7(curve,-360); pos8(vair,-450); pos9(1.25hair,-540);
x0=x1=x9; lft x0l=hround(1.5u-.5hair); x2=x4=x6=x8=.5w+.25u;
rt x3r=hround(w-1.5u); rt x7r=hround(w-1.5u+.5curve); rt x5l=hround(x4-u);
bot y0=-d; y1=top y6r=x_height; top y2r=h+oo; y3=.5[y2,y4];
y5=.5[y4,y6]; top y6r-bot y4r=vstem+eps; bot y8=-oo; y7=y9=.5[y6,y8];
if y6l<y4l: y6l:=y4l:=y5; fi
filldraw stroke z0e---z1e...pulled_arc.e(2,3)
 & pulled_arc.e(3,4)...{up}z5e;  % stem and upper bowl
filldraw stroke z5e{up}...pulled_arc.e(6,7)
 & pulled_arc.e(7,8)...{up}z9e;  % lower bowl
penlabels(0,1,2,3,4,5,6,7,8,9); endchar;
 
cmchar "Lowercase Greek phi";
beginchar(oct"103",11u#,asc_height#,desc_depth#);
italcorr .7x_height#*slant+.5curve#-u# if math_fitting:-.5u# fi;
adjust_fit(0,0); pickup fine.nib;
numeric light_curve; light_curve=hround(.5[stem,curve]-2stem_corr);
pos1(vair,90); pos2(light_curve,180); pos3(vair,270); pos4(light_curve,360);
x1=x3=.5w; lft x2r=hround(1.5u-.5light_curve); x4=w-x2;
top y1=x_height+oo; y2=y4=.5[y1,y3]; bot y3=-oo;
filldraw stroke pulled_arc.e(1,2) & pulled_arc.e(2,3)
 & pulled_arc.e(3,4) & pulled_arc.e(4,1); % bowl
pos5(hair,0); pos6(hair,0); x5=x6=.5w; top y5=.9h; bot y6=-d-oo;
filldraw stroke z5e--z6e;  % stem
penlabels(1,2,3,4,5,6); endchar;
 
cmchar "Lowercase Greek sigma";
beginchar(oct"117",10.25u#,x_height#,0);
italcorr x_height#*slant+.5stem#-u#;
adjust_fit(0,0); pickup fine.nib;
pos1(vstem,90); pos2(stem,0); pos3(vair,-90);
pos4(stem,-180); pos5(vstem,-270); pos6(vstem,-270);
x1=x3=x5=.5[x2,x4]; rt x2r=hround(w-2.5u);
lft x4r=hround(1.5u-.5curve);x6=w-1.5u;
top y1r=h; y2=y4=.5[y1,y3]; bot y3r=-oo; y5=y6=y1;
filldraw circ_stroke z6e..pulled_arc.e(5,4) & pulled_arc.e(4,3)
 & pulled_arc.e(3,2) & pulled_arc.e(2,1);  % ear and bowl
penlabels(1,2,3,4,5,6); endchar;