import Foundation
let pattern = #"<AUDT:INFO>.(?<date>\d+.\d+.\d+) (?:\d+:\d+:\d+) (?:\d+.\d+.\d+.\d+) (?:.*(?<subject>Failed 'Active Directory' login attempt)(?:.\w+.\w+)(?<impacteduser>.*?'\W))\w+.\w+.\w+.\w+.'(?<sip>.\d+.\d+.\d+.\d+)'"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
08 20 2020 11:18:08 10.72.1.17 <AUDT:INFO> 2020-08-20 11:17:12 10.72.1.17 Passwordstate: Failed 'Active Directory' login attempt for UserID 'fakedoamin\FakeUser' from the IP Address '10.72.1.231'. Possible incorrect Username or Password, or this could also be caused by restricted Logon Hours in Active Directory. Client IP Address = 10.72.1.231
08 21 2020 08:32:25 10.72.1.17 <AUDT:INFO> 2020-08-21 08:31:58 10.72.1.17 Passwordstate: Successful Active Directory login for UserID 'fakedoamin\FakeUser' from the IP Address '10.72.1.17'. Client IP Address = 10.14.1.93
"""#
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