import Foundation
let pattern = #",\s*"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
1,5,7,9,8,3,6,2,4,
2,6,8,7,5,4,9,3,1,
9,4,3,6,1,2,7,5,8,
8,9,2,1,7,6,5,4,3,
3,1,6,5,4,8,2,7,9,
5,7,4,3,2,9,1,8,6,
7,3,5,4,6,1,8,9,2,
6,8,9,2,3,5,4,1,7,
4,2,1,8,9,7,3,6,5,
"""#
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