import Foundation
let pattern = #"(?:-?\d){10,13}"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"The new bestseller, with its thought-provoking narrative, can be found under the ISBN 978-0-321-76572-3. If you're searching for the classic edition, look for 0123456789. This highly anticipated sequel is arriving soon, listed with the ISBN 9781234567890. I just finished reading another incredible book, its unique identifier is 0-7432-7356-7. For anyone interested in the updated academic text, the reference is 978-0-13-215881-6. The children's picture book, a delightful read, has the ISBN 0439023521. I finally tracked down that rare first edition; its ISBN is 9781234567890. The publisher recently re-released a series of novels, starting with 0-06-093546-9. You can pre-order the collector's edition using the ISBN 978-1-234-56789-0. My local library just acquired a fascinating new title, cataloged as 0071353986."#
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