import Foundation
let pattern = #"((?:https?(?:%3A%2F%2F|:\/\/))(?:www\.)?(?:\S+)(?:%2F|\/)(?:(?!\.(?:mp4|mkv|wmv|m4v|mov|avi|flv|webm|flac|mka|m4a|aac|ogg))[^\/])*\.(mp4|mkv|wmv|m4v|mov|avi|flv|webm|flac|mka|m4a|aac|ogg))(?!\/|\.[a-z]{1,3})"#
let regex = try! NSRegularExpression(pattern: pattern, options: [.anchorsMatchLines, .caseInsensitive])
let testString = #"""
http://test.com/test.mkv
http://test.com/test/test.jpg.mkv
https://test.com/test.mkv?test=test
http%3A%2F%2Ftest.com%2Ftest.mkv%3Ftest%3Dtest
https%3A%2F%2Ftest.com%2Ftest.jpg.mkv%3Ftest%3Dtest.mkv
http://test.com/t est.mkv__some__random__string__http://test.com/test.mkv
The last example should match the two URLs but, not the __some__random__string__.
Some examples that should not be matched:
http://test.com/test.mkv.jpg
http://test.com/test.mkv/test.jpg
https://test.com/test.mkv.jpg?test=test.mkv
http%3A%2F%2Ftest.com%2Ftest.mkv.jpg
https%3A%2F%2Ftest.com%2Ftest.mkv.jpg%3Ftest%3Dtest.mkv
http://test.com/t est.mkv__some__random__string__http://test.com/test.mkv.jpg
The last example should match only the first URL, before __some__random__string__
"""#
let stringRange = NSRange(location: 0, length: testString.utf16.count)
let matches = regex.matches(in: testString, range: stringRange)
var result: [[String]] = []
for match in matches {
var groups: [String] = []
for rangeIndex in 1 ..< match.numberOfRanges {
let nsRange = match.range(at: rangeIndex)
guard !NSEqualRanges(nsRange, NSMakeRange(NSNotFound, 0)) else { continue }
let string = (testString as NSString).substring(with: nsRange)
groups.append(string)
}
if !groups.isEmpty {
result.append(groups)
}
}
print(result)
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Swift 5.2, please visit: https://developer.apple.com/documentation/foundation/nsregularexpression