import Foundation
let pattern = #"\[\*\*\].*?\](?<etCapturedData>[^\[]+)\s*\[\*\*\]"#
let regex = try! NSRegularExpression(pattern: pattern)
let testString = #"""
12/27-13:46:30.535369 [**] [1:2019876:2] ET SCAN SSH BruteForce Tool with fake PUTTY version [**] [Classification: Detection of a Network Scan] [Priority: 3] {TCP} 100.31.116.39:35016 -> 172.20.16.2:22
12/27-13:34:12.027500 [**] [1:2500056:4184] ET COMPROMISED Known Compromised or Hostile Host Traffic TCP group 30 [**] [Classification: Misc Attack] [Priority: 2] {TCP} 100.83.149.133:58061 -> 172.20.16.2:22
"""#
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