import Foundation
let pattern = #"aa|bb|cc|dd|ee|ff|gg|hh|ii|jj|kk|ll|oo|pp"#
let regex = try! NSRegularExpression(pattern: pattern)
let testString = #"been, beer, beet, beep, bell, boom, boot, book, bull, butt, call, cell, coon, dell, doll, door, doom, fall, fell, feel, feet, foot, food, fool, fuss, full, gull, gall, hall, hell, heed, heel, hill, hull, hoop, hood, hoof, hoot, Jeff, jeep, Jill, Judd, keen, keel, keep, less, lees, Matt, mall, need, peel, pall, pool, poof, poll, poor, peek, pass, root, reel, reef, reed, roll, room, rood, sass, sell, seen, seem, seed, seek, seer, seep, soon, soot, sill, tall, tell, teen, teem, teed, Todd, tool, wall, well, watt, weed, week, and weep."#
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