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
|
if not modules then modules = { } end modules ['math-ext'] = {
version = 1.001,
comment = "companion to math-ini.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local trace_virtual = false trackers.register("math.virtual", function(v) trace_virtual = v end)
mathematics = mathematics or { }
characters = characters or { }
mathematics.extras = mathematics.extras or { }
characters.math = characters.math or { }
local chardata = characters.data
local mathdata = characters.math
function mathematics.extras.add(unicode,t)
local min, max = mathematics.extrabase, mathematics.privatebase - 1
if unicode >= min and unicode <= max then
mathdata[unicode], chardata[unicode] = t, t
else
logs.report("math extra","extra U+%04X should be in range U+%04X - U+%04X",unicode,min,max)
end
end
function mathematics.extras.copy(tfmdata)
local math_parameters = tfmdata.math_parameters
local MathConstants = tfmdata.MathConstants
if (math_parameters and next(math_parameters)) or (MathConstants and next(MathConstants)) then
local characters = tfmdata.characters
for unicode, extradesc in next, mathdata do
-- always, because in an intermediate step we can have a non math font
local extrachar = characters[unicode]
local nextinsize = extradesc.nextinsize
if nextinsize then
for i=1,#nextinsize do
local nextslot = nextinsize[i]
local nextbase = characters[nextslot]
if nextbase then
local nextnext = nextbase and nextbase.next
if nextnext then
local nextchar = characters[nextnext]
if nextchar then
if trace_virtual then
logs.report("math extra","extra U+%04X in %s at %s maps on U+%04X (class: %s, name: %s)",unicode,file.basename(tfmdata.fullname),tfmdata.size,nextslot,extradesc.mathclass or "?",extradesc.mathname or "?")
end
characters[unicode] = nextchar
break
end
end
end
end
if not characters[unicode] then
for i=1,#nextinsize do
local nextbase = characters[nextinsize[i]]
if nextbase then
characters[unicode] = nextchar
break
end
end
end
end
end
else
-- let's not waste time on non-math
end
end
table.insert(fonts.tfm.mathactions,mathematics.extras.copy)
-- 0xFE302 -- 0xFE320 for accents
mathematics.extras.add(0xFE302, {
category="mn",
description="WIDE MATHEMATICAL HAT",
direction="nsm",
linebreak="cm",
mathclass="accent",
mathname="widehat",
mathstretch="h",
unicodeslot=0xFE302,
nextinsize={ 0x00302, 0x0005E },
} )
mathematics.extras.add(0xFE303, {
category="mn",
cjkwd="a",
description="WIDE MATHEMATICAL TILDE",
direction="nsm",
linebreak="cm",
mathclass="accent",
mathname="widetilde",
mathstretch="h",
unicodeslot=0xFE303,
nextinsize={ 0x00303, 0x0007E },
} )
-- 0xFE321 -- 0xFE340 for missing characters
mathematics.extras.add(0xFE321, {
category="sm",
description="MATHEMATICAL SHORT BAR",
-- direction="on",
-- linebreak="nu",
mathclass="relation",
mathname="mapstochar",
unicodeslot=0xFE321,
} )
mathematics.extras.add(0xFE322, {
category="sm",
description="MATHEMATICAL LEFT HOOK",
mathclass="relation",
mathname="lhook",
unicodeslot=0xFE322,
} )
mathematics.extras.add(0xFE323, {
category="sm",
description="MATHEMATICAL RIGHT HOOK",
mathclass="relation",
mathname="rhook",
unicodeslot=0xFE323,
} )
--~ mathematics.extras.add(0xFE304, {
--~ category="sm",
--~ description="TOP AND BOTTOM PARENTHESES",
--~ direction="on",
--~ linebreak="al",
--~ mathclass="doubleaccent",
--~ mathname="doubleparent",
--~ unicodeslot=0xFE304,
--~ accents={ 0x023DC, 0x023DD },
--~ } )
--~ mathematics.extras.add(0xFE305, {
--~ category="sm",
--~ description="TOP AND BOTTOM BRACES",
--~ direction="on",
--~ linebreak="al",
--~ mathclass="doubleaccent",
--~ mathname="doublebrace",
--~ unicodeslot=0xFE305,
--~ accents={ 0x023DE, 0x023DF },
--~ } )
--~ \Umathchardef\braceld="0 "1 "FF07A
--~ \Umathchardef\bracerd="0 "1 "FF07B
--~ \Umathchardef\bracelu="0 "1 "FF07C
--~ \Umathchardef\braceru="0 "1 "FF07D
|
