import Foundation
let pattern = #"'(\\x[0-9a-fA-F]{2}|\\u[0-9a-fA-F]{4})*'"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
'\x0F'
'\u0fff'
'23'
'teset'
'wer.fee'
'\x0FF'
'\u0fff\x'
'\u0fff\'\'
'\u0fff"'
'\u0fff\b'
'\u0fff\f'
'\u0fff\n'
'\u0fff\r'
'\u0fff\t'
'\u0fff\v'
'\u0fff\n'
'\u0fff\\'
'\u0fff\r'
'\u0fff\\u2028'
'\u0fff\\u2029'
"""#
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