import Foundation
let pattern = #"""
^\*\s+<< BeReq\s+>> (?P<request>\d+) ?$
^-\s+BackendOpen\s+\d+ (?P<backend>[^ ]+) .+$
^-\s+BerespStatus\s+(?P<status>\d{3})$
^-\s+Timestamp\s+BerespBody: (?P<timestamp>[\d.]+) (?P<response_time>[\d.]+) .+$
"""#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
* << BeReq >> 416335894
- BackendOpen 137 boot.https_app3 10.1.10.8 8443 10.1.10.10 45467
- BerespStatus 200
- Timestamp BerespBody: 1536053067.307297 0.002362 0.000701
* << BeReq >> 417244880
- BackendOpen 62 boot.https_app4 10.1.10.9 8443 10.1.10.10 50995
- BerespStatus 200
- Timestamp BerespBody: 1536053067.427519 0.120675 0.001029
* << BeReq >> 411778166
- BackendOpen 77 boot.https_app3 10.1.10.8 8443 10.1.10.10 39506
- BerespStatus 304
- BerespStatus 200
- Timestamp BerespBody: 1536052222.383470 0.009091 0.000151
"""#
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