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1
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export const absolutePath = /^(?:\/|(?:[A-Za-z]:)?[\\|/])/;
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2
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export const relativePath = /^\.?\.\//;
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3
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|
|
|
4
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|
export function isAbsolute(path: string) {
|
|
5
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return absolutePath.test(path);
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6
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}
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7
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|
|
|
8
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|
export function isRelative(path: string) {
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|
9
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return relativePath.test(path);
|
|
10
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|
}
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11
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|
|
|
12
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export function normalize(path: string) {
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13
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return path.replace(/\\/g, '/');
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|
14
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|
}
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15
|
|
|
|
16
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|
export function basename(path: string) {
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17
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return path.split(/(\/|\\)/).pop();
|
|
18
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|
}
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19
|
|
|
|
20
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export function dirname(path: string) {
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21
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const match = /(\/|\\)[^/\\]*$/.exec(path);
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22
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if (!match) return '.';
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23
|
|
|
|
24
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const dir = path.slice(0, -match[0].length);
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25
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|
|
|
26
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|
// If `dir` is the empty string, we're at root.
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|
27
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|
return dir ? dir : '/';
|
|
28
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|
}
|
|
29
|
|
|
|
30
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|
export function extname(path: string) {
|
|
31
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const match = /\.[^.]+$/.exec(basename(path)!);
|
|
32
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|
if (!match) return '';
|
|
33
|
|
return match[0];
|
|
34
|
|
}
|
|
35
|
|
|
|
36
|
|
export function relative(from: string, to: string) {
|
|
37
|
2
|
const fromParts = from.split(/[/\\]/).filter(Boolean);
|
|
38
|
2
|
const toParts = to.split(/[/\\]/).filter(Boolean);
|
|
39
|
|
|
|
40
|
2
|
if (fromParts[0] === '.') fromParts.shift();
|
|
41
|
2
|
if (toParts[0] === '.') toParts.shift();
|
|
42
|
|
|
|
43
|
2
|
while (fromParts[0] && toParts[0] && fromParts[0] === toParts[0]) {
|
|
44
|
2
|
fromParts.shift();
|
|
45
|
2
|
toParts.shift();
|
|
46
|
|
}
|
|
47
|
|
|
|
48
|
2
|
while (toParts[0] === '..' && fromParts.length > 0) {
|
|
49
|
0
|
toParts.shift();
|
|
50
|
0
|
fromParts.pop();
|
|
51
|
|
}
|
|
52
|
|
|
|
53
|
2
|
while (fromParts.pop()) {
|
|
54
|
2
|
toParts.unshift('..');
|
|
55
|
|
}
|
|
56
|
|
|
|
57
|
2
|
return toParts.join('/');
|
|
58
|
|
}
|
|
59
|
|
|
|
60
|
|
export function resolve(...paths: string[]) {
|
|
61
|
|
let resolvedParts = paths.shift()!.split(/[/\\]/);
|
|
62
|
|
|
|
63
|
|
paths.forEach(path => {
|
|
64
|
|
if (isAbsolute(path)) {
|
|
65
|
|
resolvedParts = path.split(/[/\\]/);
|
|
66
|
|
} else {
|
|
67
|
|
const parts = path.split(/[/\\]/);
|
|
68
|
|
|
|
69
|
|
while (parts[0] === '.' || parts[0] === '..') {
|
|
70
|
|
const part = parts.shift();
|
|
71
|
|
if (part === '..') {
|
|
72
|
|
resolvedParts.pop();
|
|
73
|
|
}
|
|
74
|
|
}
|
|
75
|
|
|
|
76
|
|
resolvedParts.push.apply(resolvedParts, parts);
|
|
77
|
|
}
|
|
78
|
|
});
|
|
79
|
|
|
|
80
|
|
return resolvedParts.join('/');
|
|
81
|
|
}
|
lukastaegert