Introduce a sanitizer

Author: mattesmohr

Sources/HTMLKit/Framework/Rendering/Encoding/Sanitizer.swift

@@ -0,0 +1,16 @@
+/// A type responsible for sanitizing the renderer output
+internal struct Sanitizer {
+    
+    /// Strip a tag from a given string
+    /// 
+    /// - Parameters:
+    ///   - tag: The tag to remove
+    ///   - string: The string to remove it from
+    ///   
+    /// - Returns: The sanitized string
+    internal func strip(_ tag: String, from string: String) -> String {
+        
+        return string.replacingOccurrences(of: "<\(tag)>", with: "")
+            .replacingOccurrences(of: "</\(tag)>", with: "")
+    }
+}