const regex = /^(?<fulldomain>(?<protocol>[a-z]{2,6}):\/\/(?:((?<subdomain>[a-z0-9\-\.]*\.){0,99})(?<domain>[a-z\-0-9]{1,100})\.(?<extension>[a-z]{1,10})|(?<ipaddress>(?:25[0-5]|2[0-4]\d|[0-1]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[0-1]?\d{1,2})){3})|(?<localhost>localhost))(?<port>\:[0-9]{1,6}){0,1})\/?(?<filepath>(?<path>[a-z0-9\-_%]{1,20}\/{1}){0,}(?<filename>[a-z0-9\-_]{1,20}\.[a-z0-9]{2,6}){0,1}){0,1}(?<route>(\/[a-z_0-9\-_]{1,20}){1,}){0,10}(?<query>\?[a-z0-9%\+_\-&=\.@\!,\:]{0,200}){0,1}$/gm;
// Alternative syntax using RegExp constructor
// const regex = new RegExp('^(?<fulldomain>(?<protocol>[a-z]{2,6}):\\\/\\\/(?:((?<subdomain>[a-z0-9\\-\\.]*\\.){0,99})(?<domain>[a-z\\-0-9]{1,100})\\.(?<extension>[a-z]{1,10})|(?<ipaddress>(?:25[0-5]|2[0-4]\\d|[0-1]?\\d{1,2})(?:\\.(?:25[0-5]|2[0-4]\\d|[0-1]?\\d{1,2})){3})|(?<localhost>localhost))(?<port>\\:[0-9]{1,6}){0,1})\\\/?(?<filepath>(?<path>[a-z0-9\\-_%]{1,20}\\\/{1}){0,}(?<filename>[a-z0-9\\-_]{1,20}\\.[a-z0-9]{2,6}){0,1}){0,1}(?<route>(\\\/[a-z_0-9\\-_]{1,20}){1,}){0,10}(?<query>\\?[a-z0-9%\\+_\\-&=\\.@\\!,\\:]{0,200}){0,1}$', 'gm')
const str = `https://test.example.com:3000/path/to/page?q=1234&a=b&d=e
https://lots.of.subs.test.example.com:3000/path/to/page?q=1234&a=b&d=e
http://192.168.100.0:8080/path/to/page?q=123
http://localhost:3000/path/to/page?q=123
`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions