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
|
if not modules then modules = { } end modules ['char-con'] = {
version = 1.001,
comment = "companion to core-con.tex",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
--[[ldx--
<p>This module implements a bunch of conversions. Some are more
efficient than their <l n='tex'/> counterpart, some are even
slower but look nicer this way.</p>
<p>Some code may move to a module in the language namespace.</p>
--ldx]]--
converters = converters or { }
languages = languages or { }
languages.counters = {
['**'] = {
0x0061, 0x0062, 0x0063, 0x0064, 0x0065,
0x0066, 0x0067, 0x0068, 0x0069, 0x006A,
0x006B, 0x006C, 0x006D, 0x006E, 0x006F,
0x0070, 0x0071, 0x0072, 0x0073, 0x0074,
0x0075, 0x0076, 0x0077, 0x0078, 0x0079,
0x007A
},
['sl'] = {
0x0061, 0x0062, 0x0063, 0x010D, 0x0064,
0x0065, 0x0066, 0x0067, 0x0068, 0x0069,
0x006A, 0x006B, 0x006C, 0x006D, 0x006E,
0x006F, 0x0070, 0x0072, 0x0073, 0x0161,
0x0074, 0x0075, 0x0076, 0x007A, 0x017E
},
['gr'] = {
0x0391, 0x0392, 0x0393, 0x0394, 0x0395,
0x0396, 0x0397, 0x0398, 0x0399, 0x039A,
0x039B, 0x039C, 0x039D, 0x039E, 0x039F,
0x03A0, 0x03A1, 0x03A3, 0x03A4, 0x03A5,
0x03A6, 0x03A7, 0x03A8, 0x03A9
},
['arabic'] = {
0x0660, 0x0661, 0x0662, 0x0663, 0x0664,
0x0665, 0x0666, 0x0667, 0x0668, 0x0669
},
['persian'] = {
0x06F0, 0x06F1, 0x06F2, 0x06F3, 0x06F4,
0x06F5, 0x06F6, 0x06F7, 0x06F8, 0x06F9
},
['thai'] = {
0xE050, 0xE051, 0xE052, 0xE053, 0xE054,
0xE055, 0xE056, 0xE057, 0xE058, 0xE059
},
['devangari'] = {
0x0966, 0x0967, 0x0968, 0x0969, 0x096A,
0x096B, 0x096C, 0x096D, 0x096E, 0x096F
},
['gurmurkhi'] = {
0x0A66, 0x0A67, 0x0A68, 0x0A69, 0x0A6A,
0x0A6B, 0x0A6C, 0x0A6D, 0x0A6E, 0x0A6F
},
['gujarati'] = {
0x0AE6, 0x0AE7, 0x0AE8, 0x0AE9, 0x0AEA,
0x0AEB, 0x0AEC, 0x0AED, 0x0AEE, 0x0AEF
},
['tibetan'] = {
0x0F20, 0x0F21, 0x0F22, 0x0F23, 0x0F24,
0x0F25, 0x0F26, 0x0F27, 0x0F28, 0x0F29
}
}
function converters.chr(n, m)
if n > 0 and n < 27 then
tex.sprint(string.char(n+m))
end
end
function converters.maxchrs(n,m,cmd)
if n <= m then
tex.sprint(tex.texcatcodes, cmd .. "{" .. n .. "}")
else
converters.maxchrs(math.floor((n-1)/m),m,cmd)
tex.sprint(tex.texcatcodes, cmd .. "{" .. ((n-1)%m + 1) .. "}")
end
end
function converters.chrs(n,m)
if n <= 26 then
tex.sprint(string.char(n+m))
else
converters.chrs(math.floor((n-1)/26),m)
tex.sprint(string.char(((n-1)%26 + 1)+m))
end
end
do
local function do_alphabetic(n,max,chr)
if n <= max then
characters.flush(chr(n))
else
do_alphabetic(math.floor((n-1)/max),max,chr)
characters.flush(chr((n-1)%max+1))
end
end
function converters.alphabetic(n,code)
local code = languages.counters[code] or languages.counters['**']
do_alphabetic(n,#code,function(n) return code[n] end)
end
function converters.Alphabetic(n,code)
local code = languages.counters[code] or languages.counters['**']
do_alphabetic(n,#code,function(n) return characters.uccode(code[n]) end)
end
end
function converters.character(n) converters.chr (n,96) end
function converters.Character(n) converters.chr (n,64) end
function converters.characters(n) converters.chrs(n,96) end
function converters.Characters(n) converters.chrs(n,64) end
function converters.weekday(day,month,year)
tex.sprint(os.date("%w",os.time{year=year,month=month,day=day})+1)
end
function converters.lpy(year)
return (year % 400 == 0) or ((year % 100 ~= 0) and (year % 4 == 0))
end
function converters.leapyear(year)
if converters.lpy(year) then tex.sprint(1) else tex.sprint(0) end
end
converters.mth = {
[false] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 },
[true] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 }
}
function converters.nofdays(year,month)
tex.sprint(converters.mth[converters.lpy(year)][month])
end
function converters.year () tex.sprint(os.date("%Y")) end
function converters.month () tex.sprint(os.date("%m")) end
function converters.hour () tex.sprint(os.date("%H")) end
function converters.minute () tex.sprint(os.date("%M")) end
function converters.second () tex.sprint(os.date("%S")) end
function converters.textime() tex.sprint(tonumber(os.date("%H"))*60+tonumber(os.date("%M"))) end
converters.rom = {
{ [0] = '', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX' },
{ [0] = '', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC' },
{ [0] = '', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM' },
}
function converters.toroman(n)
if n >= 4000 then
return converters.toroman(math.floor(n/1000)) .. " " .. converters.toroman(n%1000)
else
return string.rep("M",math.floor(n/1000)) .. converters.rom[3][math.floor((n%1000)/100)] ..
converters.rom[2][math.floor((n%100)/10)] .. converters.rom[1][math.floor((n% 10)/1)]
end
end
function converters.romannumerals(n) return tex.sprint(string.lower(converters.toroman(n))) end
function converters.Romannumerals(n) return tex.sprint( converters.toroman(n) ) end
|