import Foundation
let pattern = #"\b[a-f0-9]{2}(?:([:-]?)[a-f0-9]{2}(?:\1[a-f0-9]{2}){4}|(?:\.?[a-f0-9]{2}){5})\b"#
let regex = try! NSRegularExpression(pattern: pattern, options: .caseInsensitive)
let testString = #"""
Jun 16 10:24:28 (2248) Login OK: cli 88-c9-d0-fd-13-65 via TLS tunnel)
Jun 16 10:24:35 (2258) Login OK: cli f8:a9:d0:72:0a:dd via TLS tunnel)
Jun 16 10:24:44 (2273) Login OK: cli 485a.3f12.a35a via TLS tunnel)
"""#
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