Matches valid internet-routable IPv4 addresses (Not RFC1918, RFC5735, RFC3927) with optional port delimited by colon. I wrote this specifically for Snort rules that look for hardcoded IPv4 addresses in the HTTP Host header field, but I imagine this may have its uses aside from that. This would hav...

test

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Validating steam tradeoffer links

Detect filepaths in text

((?<=key).*)(?=:|,)