import Foundation
let pattern = #"(?P<clientIP>[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}), (?P<userName>[^,]+), (?P<timestamp>[[0-9]{2}\/[0-9]{2}\/[0-9]{2}, [0-9]{1,2}:[0-9]{1,2}:[0-9]{1,2}), (?P<serviceInstance>[^,]+), (?P<serverName>[^,]+), (?P<serverIP>[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}), (?P<timeTaken>[^,]+), (?P<clientBytesSent>[^,]+), (?P<serverBytesSent>[^,]+), (?P<serviceStatusCode>[^,]+), (?P<windowsStatusCode>[^,]+), (?P<requestType>[^,]+), (?P<targetOfOperation>[^,]+), (?P<parameters>[^,]+),"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
----iis logging---
192.168.114.201, -, 03/20/05, 7:55:20, W3SVC2, SERVER, 172.21.13.45, 4502, 163, 3223, 200, 0, GET, /DeptLogo.gif, -,
"""#
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