import Foundation
let pattern = #".*(?:\d(?:\.\d+)?\s*x\s*)?\K(?<!\d)\d+(?:\.\d+)?(?:k?g|m?l)\b|(?<!\d)\d+(?:\.\d+)?(?:k?g|m?l)(?=\s*x\s*\d)"#
let regex = try! NSRegularExpression(pattern: pattern, options: .caseInsensitive)
let testString = #"""
product brand A 1237ml Bundle of 6
product milk choc370ML
brand milk Vanilla Flavor 850g
One 2400g, For 0-6 Month-Old Infants
a+...two...6-12months...11.2kg...milk
a+...two...11.2kg 6-12months ..milk
Product 200g (10x2g)
[200g] Product
Product A brand(300g)
Product 200g (20g x 10)
"""#
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