impl<'a> FindToken<char> for &'a [char]

Close #1282.

src/traits.rs

@@ -914,6 +914,18 @@ impl<'a> FindToken<char> for &'a str {
   }
 }
 
+impl<'a> FindToken<char> for &'a [char] {
+  fn find_token(&self, token: char) -> bool {
+    self.iter().any(|i| *i == token)
+  }
+}
+
+impl<'a, 'b> FindToken<&'a char> for &'b [char] {
+  fn find_token(&self, token: &char) -> bool {
+    self.find_token(*token)
+  }
+}
+
 /// Look for a substring in self
 pub trait FindSubstring<T> {
   /// Returns the byte position of the substring if it is found

tests/issues.rs

@@ -206,3 +206,11 @@ fn issue_1231_bits_expect_fn_closure() {
   }
   assert_eq!(example(&[0xff]), Ok((&b""[..], (1, 1))));
 }
+
+#[test]
+fn issue_1282_findtoken_char() {
+  use nom::character::complete::one_of;
+  use nom::error::Error;
+  let parser = one_of::<_, _, Error<_>>(['a', 'b', 'c'].as_slice());
+  assert_eq!(parser("aaa"), Ok(("aa", 'a')));
+}