wwdc2022-110357-meet-swift-regex.swift

// https://developer.apple.com/videos/play/wwdc2022/110357 

import RegexBuilder

func ~=<T>(pattern :Regex<T> , value:  String) -> Bool {
    do {
        return try pattern.firstMatch(in: value) != nil
    } catch {
        return false
    }
}

switch ("🧟‍♀️💖🧠", "The Brain Cafe\u{301}") {
case (/.\N{SPARKLING HEART}./, /.*café/.ignoresCase()):
  print("Oh no! 🧟‍♀️💖🧠, but 🧠💖☕️!")
default:
  print("No conflicts found")
}






let input = "Oh no! 🧟‍♀️💖🧠, but 🧠💖☕️!"

if let m0 = input.firstMatch(of: /.\N{SPARKLING HEART}./) {
    print(m0.0)     // // 🧟‍♀️💖🧠
    print(m0.range)
    print(m0.output) // // 🧟‍♀️💖🧠
    
}

if let m1 = input.firstMatch(of: /.\N{SPARKLING HEART}./.matchingSemantics(.unicodeScalar)) {
    print(m1.output) // ️💖🧠
    
}