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TelegramCore/Regex.swift

@@ -0,0 +1,33 @@
+import Foundation
+
+struct Regex {
+    let pattern: String
+    let options: NSRegularExpression.Options!
+    
+    private var matcher: NSRegularExpression {
+        return try! NSRegularExpression(pattern: self.pattern, options: self.options)
+    }
+    
+    init(_ pattern: String) {
+        self.pattern = pattern
+        self.options = []
+    }
+    
+    func match(_ string: String, options: NSRegularExpression.MatchingOptions = []) -> Bool {
+        return self.matcher.numberOfMatches(in: string, options: options, range: NSMakeRange(0, string.utf16.count)) != 0
+    }
+}
+
+protocol RegularExpressionMatchable {
+    func match(_ regex: Regex) -> Bool
+}
+
+extension String: RegularExpressionMatchable {
+    func match(_ regex: Regex) -> Bool {
+        return regex.match(self)
+    }
+}
+
+func ~=<T: RegularExpressionMatchable>(pattern: Regex, matchable: T) -> Bool {
+    return matchable.match(pattern)
+}