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
|
// Test inline title case conversion.
function* characters(...ranges) {
for (let [start, end] of ranges) {
for (let i = start; i <= end; ++i) {
yield i;
}
}
}
const ascii = [...characters(
[0x41, 0x5A], // A..Z
[0x61, 0x7A], // a..z
[0x30, 0x39], // 0..9
)];
const latin1 = [...characters(
[0xC0, 0xFF], // À..ÿ
)];
const twoByte = [...characters(
[0x100, 0x17E], // Ā..ž
)];
String.prototype.toTitleCase = function() {
"use strict";
var s = String(this);
if (s.length === 0) {
return s;
}
return s[0].toUpperCase() + s.substring(1);
};
function toRope(s) {
try {
return newRope(s[0], s.substring(1));
} catch {}
// newRope can fail when |s| fits into an inline string. In that case simply
// return the input.
return s;
}
for (let i = 0; i <= 32; ++i) {
let strings = [ascii, latin1, twoByte].flatMap(codePoints => [
String.fromCodePoint(...codePoints.slice(0, i)),
// Leading ASCII upper case character.
"A" + String.fromCodePoint(...codePoints.slice(0, i)),
// Leading ASCII lower case character.
"a" + String.fromCodePoint(...codePoints.slice(0, i)),
// Leading Latin-1 upper case character.
"À" + String.fromCodePoint(...codePoints.slice(0, i)),
// Leading Latin-1 lower case character.
"à" + String.fromCodePoint(...codePoints.slice(0, i)),
// Leading Two-Byte upper case character.
"Ā" + String.fromCodePoint(...codePoints.slice(0, i)),
// Leading Two-Byte lower case character.
"ā" + String.fromCodePoint(...codePoints.slice(0, i)),
]).flatMap(x => [
x,
toRope(x),
newString(x, {twoByte: true}),
]);
const expected = strings.map(x => {
// Prevent Warp compilation when computing the expected results.
with ({}) ;
return x.toTitleCase();
});
for (let i = 0; i < 1000; ++i) {
let idx = i % strings.length;
let str = strings[idx];
let actual = str.toTitleCase();
if (actual !== expected[idx]) throw new Error();
}
}
|
