locutus
Version:
Locutus other languages' standard libraries to JavaScript for fun and educational purposes
70 lines (69 loc) • 2.32 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.Parse = Parse;
const parseAuthorityAndPath = (value) => {
const slashIndex = value.indexOf('/');
if (slashIndex < 0) {
return { host: value, path: '' };
}
return {
host: value.slice(0, slashIndex),
path: value.slice(slashIndex),
};
};
function Parse(rawurl) {
// discuss at: https://locutus.io/golang/url/Parse
// parity verified: Go 1.23
// original by: Kevin van Zonneveld (https://kvz.io)
// note 1: Returns core URL parts from Go's net/url.Parse model.
// example 1: Parse('https://locutus.io:443/a/b?x=1#top')
// returns 1: {scheme: 'https', host: 'locutus.io:443', path: '/a/b', rawQuery: 'x=1', fragment: 'top'}
// example 2: Parse('/a/b?x=1')
// returns 2: {scheme: '', host: '', path: '/a/b', rawQuery: 'x=1', fragment: ''}
// example 3: Parse('//locutus.io/path')
// returns 3: {scheme: '', host: 'locutus.io', path: '/path', rawQuery: '', fragment: ''}
let rest = String(rawurl);
let fragment = '';
let rawQuery = '';
const hashIndex = rest.indexOf('#');
if (hashIndex >= 0) {
fragment = rest.slice(hashIndex + 1);
rest = rest.slice(0, hashIndex);
}
const queryIndex = rest.indexOf('?');
if (queryIndex >= 0) {
rawQuery = rest.slice(queryIndex + 1);
rest = rest.slice(0, queryIndex);
}
let scheme = '';
let host = '';
let path = '';
const schemeMatch = rest.match(/^([A-Za-z][A-Za-z0-9+.-]*):(.*)$/);
if (schemeMatch?.[1] !== undefined) {
scheme = schemeMatch[1];
const afterScheme = schemeMatch[2] ?? '';
if (afterScheme.startsWith('//')) {
const authority = parseAuthorityAndPath(afterScheme.slice(2));
host = authority.host;
path = authority.path;
}
else {
path = afterScheme;
}
}
else if (rest.startsWith('//')) {
const authority = parseAuthorityAndPath(rest.slice(2));
host = authority.host;
path = authority.path;
}
else {
path = rest;
}
return {
scheme,
host,
path,
rawQuery,
fragment,
};
}