import Foundation
let pattern = #"\b[A-Z]\w*(?:[^\S\n]+[A-Z]\w*)*(?:[^\S\n]+[a-z]\w*)*(?=:)"#
let regex = try! NSRegularExpression(pattern: pattern, options: .anchorsMatchLines)
let testString = #"""
Title: Consectetur adipiscg elit Description: Sed sit
> amet eros diam Details: Vestibulum a eros ut massa interdum
> consectetur Article number: AYHMNR
Title tEST: testing
Big red car:1, Small green ship: 2, Green Forest:3
"""#
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