import Foundation
let pattern = #"""
(
.*
\b(why|what)\b
.*
\?
){2,}
"""#
let regex = try! NSRegularExpression(pattern: pattern, options: [.caseInsensitive, .allowCommentsAndWhitespace])
let testString = #"""
1) What I love u? Look at me. Why I love u?
3) Why do you look at me?
4) Are you alright?
5) I am sick. How are you?. Well you do not have to answer it. what's up?
6) How are you? I am sick. What's up? Well you do not have to answer it.
7) Why I love u?
8) Any questions? No. Why not? Sure? Ok?
9) Jesus christ. You know what, do I love u? Look at me! Why I love u?
10) what do you want? what do you mean?
"""#
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