import Foundation
let pattern = #"Kerberos-wsfed:[\s\S]*Mean:\s(\d+)"#
let regex = try! NSRegularExpression(pattern: pattern)
let testString = #"""
Kerberos:
Historical:
Between 26 and 50 milliseconds: 10262
Between 50 and 100 milliseconds: 658
Between 101 and 200 milliseconds: 9406
Between 201 and 500 milliseconds: 6046
Between 501 milliseconds and 1 second: 1646
Between 1 and 5 seconds: 1399
Between 6 and 10 seconds: 13
Between 11 and 30 seconds: 34
Between 31 seconds and 1 minute: 7
Between 1 minute and 2 minutes: 1
Mean: 268, Mode: 36, Median: 123
Total: 29472
Kerberos-wsfed:
Historical:
Between 26 and 50 milliseconds: 3151
Between 50 and 100 milliseconds: 129
Between 101 and 200 milliseconds: 650
Between 201 and 500 milliseconds: 411
Between 501 milliseconds and 1 second: 171
Between 1 and 5 seconds: 119
Between 6 and 10 seconds: 4
Between 11 and 30 seconds: 6
Between 1 minute and 2 minutes: 1
Mean: 176, Mode: 33, Median: 37
Total: 4642
^.*?(?=Kerberos-wsfed:.*Mean:\s)\d+
"""#
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