import Foundation
let pattern = #"(?<sign>[-+]?)\b(?<hours>2[1-3]|[01][0-9]|[1-9]):(?<minutes>[0-5][0-9])\b"#
let regex = try! NSRegularExpression(pattern: pattern)
let testString = #"""
23:55
-13:21
+13:21
1:22
5:19
1234412231
42:48
2.48
2:48
12:159
gordon
11:87
_12:12
0:0
0:15
14:55
13:00
1:12 11:17
55:1 15:55
"""#
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