summaryrefslogtreecommitdiff
path: root/fonts/amsfonts/source/cyrmax.mf
blob: 32ccd44bebeef0beb66a6227ff6b908cd93576a1 (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
%% filename: cyrmax.mf
%% version: 2.2
%% date: 1995/01/04
%%
%% American Mathematical Society
%% Technical Support
%% Publications Technical Group
%% 201 Charles Street
%% Providence, RI 02904
%% USA
%% tel: (401) 455-4080
%%      (800) 321-4267 (USA and Canada only)
%% fax: (401) 331-3842
%% email: tech-support@ams.org
%%
%% Copyright 1995 Humanities and Arts Computing Center, University of
%% Washington.
%%
%% Unlimited copying and redistribution of this file are permitted as
%% long as this file is not modified.  Modifications, and distribution
%% of modified versions, are permitted, but only if the resulting file
%% is renamed.
%% 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
def slantswitch =
slant:=-slant;
currenttransform:= identity slanted slant yscaled aspect_ratio scaled granularity;
enddef; %reverse slant so that mirror() will work

def lowerfit = 0 enddef;

transform MIRROR;
MIRROR=identity reflectedabout(origin,up);

% produce a mirror image of current picture reflected about a vertical axis
def mirror (expr axis) =
currentpicture:=currentpicture transformed MIRROR shifted (2axis,0);
slantswitch; % restore normal slant
enddef;

vardef armup(suffix $,$$,@)(expr darkness,jut) =  % arm from |z$| to |z$$|
 x@0=good.x(x$$r-jut); y@0=y$l;
 if serifs: y@1=y$r; z@1=z$$r-whatever*(z@0-z$$r);
  z@2=.5[z$r,z@1];
  filldraw z$$l{z@1-z$$l}...darkness[z@1,.5[z@2,z$$l] ]...z@2
   ---z$r--z$l--z@0--z$$r--cycle; % arm and beak
 else: filldraw z$l--z$r--z@0--z$$r--cycle; fi  % sans-serif arm
 penlabels(@0,@1,@2); enddef;

def varwid =
  if serifs: if hefty: vair else: 1.5cap_hair fi else: vair fi
  enddef;


vardef cyrsanserif(suffix $) =
 x$.css.r=x$r; x$.css.l=x$l; x$.css=x$;
  y$.css.r=y$r-2slab; y$.css.l=y$l-2slab; y$.css=y$-2slab; 
 filldraw stroke z$e--z$.css.e;
enddef;

vardef lcyrsanserif(suffix $) =
 numeric cssdif; cssdif=.5(x$r-x$l); if cssdif<0: cssdif:=-cssdif; fi
 x$'.css.r=x$r+cssdif; x$'.css.l=x$l+cssdif; x$'.css=x$+cssdif;
  y$'.css.r=y$'.css.l=y$'.css=bot y$ + slab; 
 x$.css.r=x$r+cssdif; x$.css.l=x$l+cssdif; x$.css=x$+cssdif;
  y$.css.r=y$r-2slab; y$.css.l=y$l-2slab; y$.css=y$-2slab; 
 filldraw stroke z$'.css.e--z$.css.e;
enddef;

vardef rcyrsanserif(suffix $) =
 numeric cssdif; cssdif=.5(x$r-x$l); if cssdif<0: cssdif:=-cssdif; fi
 x$'.css.r=x$r-cssdif; x$'.css.l=x$l-cssdif; x$'.css=x$-cssdif;
  y$'.css.r=y$'.css.l=y$'.css=bot y$ + slab; 
 x$.css.r=x$r-cssdif; x$.css.l=x$l-cssdif; x$.css=x$-cssdif;
  y$.css.r=y$r-2slab; y$.css.l=y$l-2slab; y$.css=y$-2slab; 
 filldraw stroke z$'.css.e--z$.css.e;
enddef;

numeric flouradjust; flouradjust=.09designsize;
vardef cyr_serif(suffix $,$$,@)  % serif at |z$| for stroke from |z$$|
  (expr darkness,jut) suffix modifier =
 pickup crisp.nib; numeric bracket_height; pair downward; 
 bracket_height=if dark.modifier: 1.5 fi\\ bracket;
 if y$<y$$: y@2=min(y$+bracket_height,y$$);
  top y@1-slab=bot y@0+eps=tiny.bot y$; downward=z$-z$$;
  if y@1>y@2: y@2:=y@1; fi
 else: y@2=max(y$-bracket_height,y$$);
  bot y@1+slab=top y@0-eps=tiny.top y$; downward=z$$-z$;
  if y@1<y@2: y@2:=y@1; fi fi
 y@3=y@2; z@3=whatever[z$,z$$];
 if jut<0: z@2+penoffset downward of currentpen =
   z$l+penoffset downward of pen_[tiny.nib]+whatever*downward;
  lft x@0=lft x@1=tiny.lft x$l+jut;
  if x@3<x@2+eps: x@3:=x@2+eps; fi
 else: z@2-penoffset downward of currentpen =
   z$r-penoffset downward of pen_[tiny.nib]+whatever*downward;
   rt x@0=rt x@1=tiny.rt x$r+jut;
   if x@3>x@2-eps: x@3:=x@2-eps; fi fi
 pair corner; ypart corner=y@1; corner=z@2+whatever*downward;
 pair flourish; xpart flourish= x@0 if jut > 0: + cyrflwd else: - cyrflwd fi;
 ypart flourish= y@0 - cyrflht;
if (designsize < 15pt): 
   pair flourishcorner; xpart flourishcorner=flouradjust[x@2,(xpart flourish)];
    ypart flourishcorner=ypart flourish; %if jut > 0: -1.5 else: +1.5 fi;
   filldraw z@2{z$-z$$}
  ...darkness[corner,.5[z@1,z@2] ]{z@1-z@2}
  ...{jut,0}z@1--z@0{down}...{jut,-1}flourish--flourishcorner{-jut,0}
   ...{-jut,0}(x$,y@0)--z@3--cycle; % the serif
else: filldraw z@2{z$-z$$}
  ...darkness[corner,.5[z@1,z@2] ]{z@1-z@2}
  ...{jut,0}z@1--z@0{down}...{jut,-1}flourish{-jut,0}
   ...{-jut,0}(x$,y@0)--z@3--cycle; % the serif
fi
 labels (@0,@1,@2,@3); enddef;


def dish_cyr_serif(suffix $,$$,@)(expr left_darkness,left_jut)
  (suffix @@)(expr right_darkness,right_jut) suffix modifier =
 cyr_serif($,$$,@,left_darkness,-left_jut) modifier;
 cyr_serif($,$$,@@,right_darkness,right_jut) modifier;
enddef;

def l_cyr_serif(suffix $,$$,@)(expr left_darkness,left_jut)
  (suffix @@)(expr right_darkness,right_jut) suffix modifier =
 cyr_serif($,$$,@,left_darkness,-left_jut) modifier;
 serif($,$$,@@,right_darkness,right_jut) modifier;
enddef;

def r_cyr_serif(suffix $,$$,@)(expr left_darkness,left_jut)
  (suffix @@)(expr right_darkness,right_jut) suffix modifier =
 serif($,$$,@,left_darkness,-left_jut) modifier;
 cyr_serif($,$$,@@,right_darkness,right_jut) modifier;
enddef;

% cyrbrev is called with suffix, dummy_suffix e.g.
% cyrbrev(2,q) where the breve will be centered
% above x2 using dummy suffixes q_1, q_2 etc.
def cyrbrev (suffix $,@) =
pickup crisp.nib; pos@_1(vair,-180); pos@_3(vair,0);
top y@_1=top y@_3=h;
lft x@_1r=hround(x$-4u-.5vair); rt x@_3r=hround(x$+4u+.5vair);
numeric mid_thickness; mid_thickness=vround 1/3[vair,stem];
pos@_2(mid_thickness,-90); x@_2=x$;
bot y@_2r=y$+dot_size;
filldraw stroke z@_1e{down}...z@_2e{right}...{up}z@_3e;  % stroke
pos@_11(dot_size,0); pos@_12(dot_size,90);
pos@_13(dot_size,0); pos@_14(dot_size,90);
lft x@_11l=lft x@_1r; rt x@_13r=rt x@_3r; y@_11=y@_12=y@_13=y@_14=h;
x@_12=x@_11; x@_14=x@_13; dot(@_11,@_12); dot(@_13,@_14);
penlabels(@_1,@_2,@_3,@_11,@_13); enddef;

boolean altaccent; altaccent=false;   % altaccent inhibits right side dot
def nucyrbrev (suffix $,@) =
pickup crisp.nib; pos@_1(vair,-180); pos@_3(vair,0);
top y@_1=top y@_3=y@_2r+cyrspread;
lft x@_1r=hround(x$-4u-.5vair); rt x@_3r=hround(x$+4u+.5vair);
numeric mid_thickness; mid_thickness=vround 1/3[vair,stem];
pos@_2(mid_thickness,-90); x@_2=x$;
bot y@_2r=y$+.5dot_size;
filldraw stroke z@_1e{down}...z@_2e{right}...{up}z@_3e;  % stroke

if square_dots: % relax
else:
  pos@_11(dot_size,0); pos@_12(dot_size,90); 
  pos@_13(dot_size,0); pos@_14(dot_size,90);
  lft x@_11l=lft x@_1r; rt x@_13r=rt x@_3r; 
  y@_11=y@_12=y@_13=y@_14=y@_2r+cyrspread;
  x@_12=x@_11; x@_14=x@_13; dot(@_11,@_12); 
  if altaccent: % relax
  else: dot(@_13,@_14); fi
fi
penlabels(@_1,@_2,@_3,@_11,@_13); enddef;

% flip rotates 180 degrees about the centerpoint whose suffix is passed
def flip (suffix $) =
picture V; transform FLIP;
y$:=y$*aspect_ratio;
FLIP=identity rotatedaround(z$,180) shifted(2slant*y$,0);
V=currentpicture transformed FLIP; currentpicture:=V;
enddef;

def dot_sharp_values =
numeric dot_diam#; dot_diam#=max(dot_size#,cap_curve#);
numeric dot_top#; dot_top#=min(asc_height#,10/7x_height#+.5dot_diam#);
enddef;


% umlaut
% calling specification is (xx,q) where xx is a point over which to center
%                                 the umlaut, q is a dummy suffix which may be used
def umlaut (suffix $,@) =
dot_sharp_values;
define_whole_blacker_pixels(dot_diam);
pickup tiny.nib; pos@_1(dot_diam,0); pos@_2(dot_diam,90);
x@_1=x@_2=x$-dot_diam; top y@_2r=2dot_diam+y$;
y@_1=.5[y@_2l,y@_2r];  
dot(@_1,@_2);  % dot
pos@_3(dot_diam,0); pos@_4(dot_diam,90);
x@_3=x@_4=x$+1.75u; top y@_4r=2dot_diam+y$;
y@_3=.5[y@_4l,y@_4r];  
dot(@_3,@_4);  % dot
enddef;