implement ops::Not for AsciiSet

Author: joshka

percent_encoding/src/lib.rs

@@ -120,6 +120,15 @@ impl ops::Add for AsciiSet {
     }
 }
 
+impl ops::Not for AsciiSet {
+    type Output = Self;
+
+    fn not(self) -> Self {
+        let mask = self.mask.map(|chunk| !chunk);
+        AsciiSet { mask }
+    }
+}
+
 /// The set of 0x00 to 0x1F (C0 controls), and 0x7F (DEL).
 ///
 /// Note that this includes the newline and tab characters, but not the space 0x20.