blob: 90f9bec0222f024edf2a5ab4dc3dabc0b10d6b8b (
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
|
(.module:
lux
(lux (control [monoid #+ Monoid]
[eq #+ Eq]
[order]
[monad #+ do Monad]
[codec #+ Codec]
hash)
(data (coll [list])
[maybe])))
## [Functions]
(def: #export (size x)
(-> Text Nat)
("lux text size" x))
(def: #export (nth idx input)
(-> Nat Text (Maybe Nat))
("lux text char" input idx))
(def: #export (contains? sub text)
(-> Text Text Bool)
(case ("lux text index" text sub +0)
(#.Some _)
true
_
false))
(def: #export (clip from to input)
(-> Nat Nat Text (Maybe Text))
("lux text clip" input from to))
(def: #export (clip' from input)
(-> Nat Text (Maybe Text))
("lux text clip" input from (size input)))
(def: #export (replace-all pattern value template)
(-> Text Text Text Text)
("lux text replace-all" template pattern value))
(def: #export (index-of' pattern from input)
(-> Text Nat Text (Maybe Nat))
("lux text index" input pattern from))
(def: #export (index-of pattern input)
(-> Text Text (Maybe Nat))
("lux text index" input pattern +0))
(def: (last-index-of'' part since text)
(-> Text Nat Text (Maybe Nat))
(case ("lux text index" text part (n/inc since))
#.None
(#.Some since)
(#.Some since')
(last-index-of'' part since' text)))
(def: #export (last-index-of' part from text)
(-> Text Nat Text (Maybe Nat))
(case ("lux text index" text part from)
(#.Some since)
(last-index-of'' part since text)
#.None
#.None))
(def: #export (last-index-of part text)
(-> Text Text (Maybe Nat))
(case ("lux text index" text part +0)
(#.Some since)
(last-index-of'' part since text)
#.None
#.None))
(def: #export (starts-with? prefix x)
(-> Text Text Bool)
(case (index-of prefix x)
(#.Some +0)
true
_
false))
(def: #export (ends-with? postfix x)
(-> Text Text Bool)
(case (last-index-of postfix x)
(#.Some n)
(n/= (size x)
(n/+ (size postfix) n))
_
false))
(def: #export (split at x)
(-> Nat Text (Maybe [Text Text]))
(case [(clip +0 at x) (clip' at x)]
[(#.Some pre) (#.Some post)]
(#.Some [pre post])
_
#.None))
(def: #export (split-with token sample)
(-> Text Text (Maybe [Text Text]))
(do maybe.Monad<Maybe>
[index (index-of token sample)
[pre post'] (split index sample)
[_ post] (split (size token) post')]
(wrap [pre post])))
(def: #export (split-all-with token sample)
(-> Text Text (List Text))
(case (split-with token sample)
(#.Some [pre post])
(#.Cons pre (split-all-with token post))
#.None
(#.Cons sample #.Nil)))
(def: #export split-lines
(split-all-with "\n"))
## [Structures]
(struct: #export _ (Eq Text)
(def: (= test subject)
("lux text =" subject test)))
(struct: #export _ (order.Order Text)
(def: eq Eq<Text>)
(def: (< test subject)
("lux text <" subject test))
(def: (<= test subject)
(or ("lux text <" subject test)
("lux text =" subject test)))
(def: (> test subject)
("lux text <" test subject))
(def: (>= test subject)
(or ("lux text <" test subject)
("lux text =" test subject)))
)
(struct: #export _ (Monoid Text)
(def: identity "")
(def: (compose left right)
("lux text concat" left right)))
(open Monoid<Text> "text/")
(def: #export (encode original)
(-> Text Text)
(let [escaped (|> original
(replace-all "\\" "\\\\")
(replace-all "\t" "\\t")
(replace-all "\v" "\\v")
(replace-all "\b" "\\b")
(replace-all "\n" "\\n")
(replace-all "\r" "\\r")
(replace-all "\f" "\\f")
(replace-all "\"" "\\\"")
)]
($_ text/compose "\"" escaped "\"")))
(struct: #export _ (Hash Text)
(def: eq Eq<Text>)
(def: (hash input)
("lux text hash" input)))
(def: #export concat
(-> (List Text) Text)
(let [(^open) list.Fold<List>
(^open) Monoid<Text>]
(|>> list.reverse (fold text/compose identity))))
(def: #export (join-with sep texts)
(-> Text (List Text) Text)
(|> texts (list.interpose sep) concat))
(def: #export (empty? text)
(-> Text Bool)
(case text
"" true
_ false))
(def: #export (replace-once pattern value template)
(-> Text Text Text Text)
(maybe.default template
(do maybe.Monad<Maybe>
[[pre post] (split-with pattern template)
#let [(^open) Monoid<Text>]]
(wrap ($_ text/compose pre value post)))))
(def: #export (enclose [left right] content)
{#.doc "Surrounds the given content text with left and right side additions."}
(-> [Text Text] Text Text)
(let [(^open) Monoid<Text>]
($_ text/compose left content right)))
(def: #export (enclose' boundary content)
{#.doc "Surrounds the given content text with the same boundary text."}
(-> Text Text Text)
(enclose [boundary boundary] content))
(def: #export (from-code code)
(-> Nat Text)
("lux nat char" code))
(def: #export (space? char)
{#.doc "Checks whether the character is white-space."}
(-> Nat Bool)
(case char
(^or (^ (char "\t")) (^ (char "\v"))
(^ (char " ")) (^ (char "\n"))
(^ (char "\r")) (^ (char "\f")))
true
_
false))
|
