hcrub · August 25, 2023 15:10 · Apr 8, 2017 · Apr 8, 2017
diff --git a/NSRegularExpression+Split.swift b/NSRegularExpression+Split.swift
@@ -0,0 +1,44 @@
+// NSRegularExpression+Split.swift
+//
+// Verbatim ObjC->Swift port originating from https://github.com/bendytree/Objective-C-RegEx-Categories
+
+extension NSRegularExpression {
+
+    func split(_ str: String) -> [String] {
+        let range = NSRange(location: 0, length: str.characters.count)
+
+        //get locations of matches
+        var matchingRanges: [NSRange] = []
+        let matches: [NSTextCheckingResult] = self.matches(in: str, options: [], range: range)
+        for match: NSTextCheckingResult in matches {
+            matchingRanges.append(match.range)
+        }
+
+        //invert ranges - get ranges of non-matched pieces
+        var pieceRanges: [NSRange] = []
+
+        //add first range
+        pieceRanges.append(NSRange(location: 0, length: (matchingRanges.count == 0 ? str.characters.count : matchingRanges[0].location)))
+
+        //add between splits ranges and last range
+        for i in 0..<matchingRanges.count {
+            let isLast = i + 1 == matchingRanges.count
+
+            let location = matchingRanges[i].location
+            let length = matchingRanges[i].length
+
+            let startLoc = location + length
+            let endLoc = isLast ? str.characters.count : matchingRanges[i + 1].location
+            pieceRanges.append(NSRange(location: startLoc, length: endLoc - startLoc))
+        }
+
+        var pieces: [String] = []
+        for range: NSRange in pieceRanges {
+            let piece = (str as NSString).substring(with: range)
+            pieces.append(piece)
+        }
+
+        return pieces
+    }
+
+}