more choice impls

src/choice.rs

@@ -47,3 +47,28 @@ where
         choice_loop(input, &[&self.0, &self.1, &self.2])
     }
 }
+
+impl<P1, P2, P3, P4, I, O, E> Choice<I, O, E> for (P1, P2, P3, P4)
+where
+    P1: Parser<I, O, E>,
+    P2: Parser<I, O, E>,
+    P3: Parser<I, O, E>,
+    P4: Parser<I, O, E>,
+{
+    fn parse_choice(&self, input: I) -> Result<(O, I), (E, I)> {
+        choice_loop(input, &[&self.0, &self.1, &self.2, &self.3])
+    }
+}
+
+impl<P1, P2, P3, P4, P5, I, O, E> Choice<I, O, E> for (P1, P2, P3, P4, P5)
+where
+    P1: Parser<I, O, E>,
+    P2: Parser<I, O, E>,
+    P3: Parser<I, O, E>,
+    P4: Parser<I, O, E>,
+    P5: Parser<I, O, E>,
+{
+    fn parse_choice(&self, input: I) -> Result<(O, I), (E, I)> {
+        choice_loop(input, &[&self.0, &self.1, &self.2, &self.3, &self.4])
+    }
+}