blob: a8850b4fb10bd55893645ac25cabafe3358da320 (
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
|
(.require
[library
[lux (.except)
[abstract
[equivalence (.only Equivalence)]
[order (.only Order)]
[enum (.only Enum)]
[codec (.only Codec)]
[monoid (.only Monoid)]
[monad (.only do)]]
[control
["<>" parser (.only)]
["[0]" try]]
[data
["[0]" text (.use "[1]#[0]" monoid)
["<[1]>" \\parser (.only Parser)]]]
[math
[number
["i" int]
["[0]" nat (.use "[1]#[0]" decimal)]]]
[meta
[type
[primitive (.except)]]]]]
["[0]" //
["[1][0]" year]])
(primitive .public Duration
Int
(def .public of_millis
(-> Int Duration)
(|>> abstraction))
(def .public millis
(-> Duration Int)
(|>> representation))
(with_template [<op> <name>]
[(def .public (<name> param subject)
(-> Duration Duration Duration)
(abstraction (<op> (representation param) (representation subject))))]
[i.+ composite]
[i.% framed]
)
(with_template [<op> <name>]
[(def .public (<name> scalar)
(-> Nat Duration Duration)
(|>> representation (<op> (.int scalar)) abstraction))]
[i.* up]
[i./ down]
)
(def .public inverse
(-> Duration Duration)
(|>> representation (i.* -1) abstraction))
(def .public (ticks param subject)
(-> Duration Duration Int)
(i./ (representation param) (representation subject)))
(def .public equivalence
(Equivalence Duration)
(implementation
(def (= param subject)
(i.= (representation param) (representation subject)))))
(def .public order
(Order Duration)
(implementation
(def equivalence ..equivalence)
(def (< param subject)
(i.< (representation param) (representation subject)))))
(with_template [<op> <name>]
[(def .public <name>
(-> Duration Bit)
(|>> representation (<op> +0)))]
[i.> positive?]
[i.< negative?]
[i.= neutral?]
)
)
(def .public empty
(..of_millis +0))
(def .public milli_second
(..of_millis +1))
(with_template [<name> <scale> <base>]
[(def .public <name>
(..up <scale> <base>))]
[second 1,000 milli_second]
[minute 60 second]
[hour 60 minute]
[day 24 hour]
[week 7 day]
[normal_year //year.days day]
)
(def .public leap_year
(..composite ..day ..normal_year))
(def .public monoid
(Monoid Duration)
(implementation
(def identity ..empty)
(def composite ..composite)))
(with_template [<value> <definition>]
[(def <definition> <value>)]
["D" day_suffix]
["h" hour_suffix]
["m" minute_suffix]
["s" second_suffix]
["ms" milli_second_suffix]
["+" positive_sign]
["-" negative_sign]
)
(def (encoded duration)
(if (at ..equivalence = ..empty duration)
(all text#composite
..positive_sign
(nat#encoded 0)
..milli_second_suffix)
(let [signed? (negative? duration)
[days time_left] [(ticks day duration) (framed day duration)]
days (if signed?
(i.abs days)
days)
time_left (if signed?
(..inverse time_left)
time_left)
[hours time_left] [(ticks hour time_left) (framed hour time_left)]
[minutes time_left] [(ticks minute time_left) (framed minute time_left)]
[seconds time_left] [(ticks second time_left) (framed second time_left)]
millis (..millis time_left)]
(all text#composite
(if signed? ..negative_sign ..positive_sign)
(if (i.= +0 days) "" (text#composite (nat#encoded (.nat days)) ..day_suffix))
(if (i.= +0 hours) "" (text#composite (nat#encoded (.nat hours)) ..hour_suffix))
(if (i.= +0 minutes) "" (text#composite (nat#encoded (.nat minutes)) ..minute_suffix))
(if (i.= +0 seconds) "" (text#composite (nat#encoded (.nat seconds)) ..second_suffix))
(if (i.= +0 millis) "" (text#composite (nat#encoded (.nat millis)) ..milli_second_suffix))
))))
(def parser
(Parser Duration)
(let [section (is (-> Text Text (Parser Nat))
(function (_ suffix false_suffix)
(|> (<text>.many <text>.decimal)
(<>.codec nat.decimal)
(<>.before (when false_suffix
"" (<text>.this suffix)
_ (<>.after (<>.not (<text>.this false_suffix))
(<text>.this suffix))))
(<>.else 0))))]
(do <>.monad
[sign (<>.or (<text>.this ..negative_sign)
(<text>.this ..positive_sign))
days (section ..day_suffix "")
hours (section hour_suffix "")
minutes (section ..minute_suffix ..milli_second_suffix)
seconds (section ..second_suffix "")
millis (section ..milli_second_suffix "")
.let [span (|> ..empty
(..composite (..up days ..day))
(..composite (..up hours ..hour))
(..composite (..up minutes ..minute))
(..composite (..up seconds ..second))
(..composite (..up millis ..milli_second)))]]
(in (when sign
{.#Left _} (..inverse span)
{.#Right _} span)))))
(def .public codec
(Codec Text Duration)
(implementation
(def encoded ..encoded)
(def decoded (<text>.result ..parser))))
(def .public (difference from to)
(-> Duration Duration Duration)
(|> from ..inverse (..composite to)))
(def .public enum
(Enum Duration)
(implementation
(def order ..order)
(def succ
(..composite ..milli_second))
(def pred
(..composite (..inverse ..milli_second)))))
|
