Webflags: g

GitHub Repository URL

Match GitHub repository URLs and capture the owner and repo segments.

Available in

JavaScript / ECMAScript code

jsJavaScript

const re = new RegExp("https?:\\/\\/(?:www\\.)?github\\.com\\/([A-Za-z0-9](?:[A-Za-z0-9\\-]{0,38})?)\\/([A-Za-z0-9._\\-]{1,100})", "g");
const input = "Source at https://github.com/vercel/next.js or https://www.github.com/torvalds/linux";
const matches = [...input.matchAll(re)];
console.log(matches.map(m => m[0]));

Uses `String.prototype.matchAll` for global iteration (Node 12+ / all modern browsers).

Python (re) code

pyPython

import re

pattern = re.compile(r"https?:\/\/(?:www\.)?github\.com\/([A-Za-z0-9](?:[A-Za-z0-9\-]{0,38})?)\/([A-Za-z0-9._\-]{1,100})")
input_text = "Source at https://github.com/vercel/next.js or https://www.github.com/torvalds/linux"
for m in pattern.finditer(input_text):
    print(m.group(0))

Stdlib `re` module — no third-party dependency. Works on Python 3.6+.

Go (RE2) code

goGo

package main

import (
	"fmt"
	"regexp"
)

func main() {
	re := regexp.MustCompile(`https?:\/\/(?:www\.)?github\.com\/([A-Za-z0-9](?:[A-Za-z0-9\-]{0,38})?)\/([A-Za-z0-9._\-]{1,100})`)
	input := `Source at https://github.com/vercel/next.js or https://www.github.com/torvalds/linux`
	for _, match := range re.FindAllString(input, -1) {
		fmt.Println(match)
	}
}

Uses `regexp.MustCompile` (panics on bad patterns at startup) and `FindAllString` for all matches.

Pattern

regexengine-agnostic

https?:\/\/(?:www\.)?github\.com\/([A-Za-z0-9](?:[A-Za-z0-9\-]{0,38})?)\/([A-Za-z0-9._\-]{1,100})   (flags: g)

Raw source: https?:\/\/(?:www\.)?github\.com\/([A-Za-z0-9](?:[A-Za-z0-9\-]{0,38})?)\/([A-Za-z0-9._\-]{1,100})

How it works

https?:\/\/(?:www\.)?github\.com\/ matches the domain with optional www and either http/https. The first capture ([A-Za-z0-9](?:[A-Za-z0-9\-]{0,38})?) follows GitHub's username rules: 1–39 chars, alphanumeric + hyphens, no leading/trailing hyphen (simplified). The second capture matches the repo name with the broader allowed character set.