Regular Expressions 101

Detects github and gitlab urls and gives back the domain (either github.com or gitlab.com) and the author + repo name

matches the http portion of a url, both http:// and https://, and also matches the www. portion if that is included.

Regular expression ^(?:https?:)?(?:\/\/)?(?:+@)?(?:www\.)?(+) used below extracts domain with subdomains out of a full url. It skips protocol (ex: https:), "//", "@", www subdomain and then captures everything (ex: domain) before ":" or "/" or end of line.

get url's from sitemap.xml

parse http url into scheme, domain, uri, hash, (user port if exist)

Gets the subdomain in a url

Grabs the domain of a url

Conforms to various RFC specifications Captures key components of url: Protocol Authority Port...

Validate URL and extracts its parts.