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export const resolvePath = (...paths: string[]): string => {
function resolve(pathA: string, pathB: string) {
// ‘a’ => ['a']
// 'a/b' => ['a', 'b']
// '/a/b' => ['', 'a', 'b']
// '/a/b/' => ['', 'a', 'b', '']
const pathBParts = pathB.split('/');
if (pathBParts[0] === '') {
return pathBParts.join('/');
}
const pathAParts = pathA.split('/');
const aLastIndex = pathAParts.length - 1;
if (pathAParts[aLastIndex] !== '') {
pathAParts[aLastIndex] = '';
}
let part: string;
let i = 0;
while (typeof (part = pathBParts[i]) === 'string') {
switch (part) {
case '..':
pathAParts.pop();
pathAParts.pop();
pathAParts.push('');
break;
case '.':
pathAParts.pop();
pathAParts.push('');
break;
default:
pathAParts.pop();
pathAParts.push(part);
pathAParts.push('');
break;
}
i++;
}
if (pathBParts[pathBParts.length - 1] !== '') pathAParts.pop();
return pathAParts.join('/');
}
let i = 0;
let path: string;
let r = location.pathname;
const urlRegex = /^https?\:\/\/([^\/?#]+)(?:[\/?#]|$)/i;
const multiSlashReg = /\/\/+/g;
while (typeof (path = paths[i]) === 'string') {
debugger;
const matches = path && path.match(urlRegex);
if (matches || !i) {
r = path;
} else {
path = path.replace(multiSlashReg, '/');
r = resolve(r, path);
}
i++;
}
return r;
};
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