Regular expression for validating url in c
If the pattern will match the inputted URL in the textbox then it will display Valid URL! because this regular expression is the pattern for validating URL. Negative lookahead is used instead NOTE, that package does fuzzy search, not strict validation. If they copy it out and back into a browser so they may not know what's wrong with it upon visual inspection.
He also sliced up the Unicode ranges :=), that's the reason his one is so long :) = 18.104.22.168/8 are excluded by the second validation block.