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There is no pattern matching...it's my own code that checks each string for being an IP or domain followed by some integer being the port.
Don't get me wrong, but this all sounds like you are going to "recode" things. Else, whats the meaning behind all these detail questions?
OK, but if you really aim to get as many proxies as you can, you really should have a look on GSA Proxy Scraper as this tool gives you the best public proxies available as it constantly tests things and gives you a value for the proxy (e.g. reliability, days being up and so on).I don't know if it makes much sense to use the SER proxy scraper for this task.