diff --git a/src/char_class.rs b/src/char_class.rs
index 49a0128..7fb7733 100644
--- a/src/char_class.rs
+++ b/src/char_class.rs
@@ -19,9 +19,9 @@ pub fn alphanum(term: u8) -> bool {
 /// Recognises a hexadecimal digit, `0-9a-fA-F`.
 #[inline]
 pub fn hex_digit(term: u8) -> bool {
-	(term >= 0x30 && term <= 0x39) ||
-	(term >= 0x41 && term <= 0x46) ||
-	(term >= 0x61 && term <= 0x66)
+	(term >= 0x30 && term <= 0x39)
+		|| (term >= 0x41 && term <= 0x46)
+		|| (term >= 0x61 && term <= 0x66)
 }
 
 /// Recognises an octal digit, `0-7`.
diff --git a/src/lib.rs b/src/lib.rs
index 68ed539..fb82d9f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,5 @@
-mod result;
 pub mod range;
+mod result;
 pub mod set;
 
 /// Constains predefined parsers and combinators.
@@ -8,7 +8,7 @@ pub mod parser;
 /// Utility functions to recognize char class of byte value.
 pub mod char_class;
 
-pub use crate::result::{Result, Error};
+pub use crate::result::{Error, Result};
 
 /// Parser type, `Parser<I, O>` is alias of `parser::Parser<'static, I, O>`.
 pub type Parser<I, O> = parser::Parser<'static, I, O>;
diff --git a/src/parser.rs b/src/parser.rs
index 6aece11..8870b0d 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -79,7 +79,7 @@ impl<'a, I, O> Parser<'a, I, O> {
 			results
 				.borrow_mut()
 				.entry(key)
-				.or_insert_with(||(self.method)(input, start))
+				.or_insert_with(|| (self.method)(input, start))
 				.clone()
 		})
 	}
@@ -508,9 +508,7 @@ impl<'a, I: Copy + 'a, O: 'a, U: 'a> Mul<Parser<'a, I, U>> for Parser<'a, I, O>
 }
 
 /// Chain two passers where the second parser depends on the first's result.
-impl<'a, I: Copy, O: 'a, U: 'a, F: Fn(O) -> Parser<'a, I, U> + 'a> Shr<F>
-	for Parser<'a, I, O>
-{
+impl<'a, I: Copy, O: 'a, U: 'a, F: Fn(O) -> Parser<'a, I, U> + 'a> Shr<F> for Parser<'a, I, O> {
 	type Output = Parser<'a, I, U>;
 
 	fn shr(self, other: F) -> Self::Output {
diff --git a/src/range.rs b/src/range.rs
index 826d177..6d0fa36 100644
--- a/src/range.rs
+++ b/src/range.rs
@@ -1,5 +1,4 @@
-
-use std::ops::{Range, RangeFrom, RangeTo, RangeFull};
+use std::ops::{Range, RangeFrom, RangeFull, RangeTo};
 
 pub enum Bound<'a, T: 'a> {
 	Excluded(&'a T),
@@ -14,26 +13,46 @@ pub trait RangeArgument<T> {
 }
 
 impl<T> RangeArgument<T> for Range<T> {
-	fn start(&self) -> Bound<T> { Included(&self.start) }
-	fn end(&self) -> Bound<T> { Excluded(&self.end) }
+	fn start(&self) -> Bound<T> {
+		Included(&self.start)
+	}
+	fn end(&self) -> Bound<T> {
+		Excluded(&self.end)
+	}
 }
 
 impl<T> RangeArgument<T> for RangeFrom<T> {
-	fn start(&self) -> Bound<T> { Included(&self.start) }
-	fn end(&self) -> Bound<T> { Unbounded }
+	fn start(&self) -> Bound<T> {
+		Included(&self.start)
+	}
+	fn end(&self) -> Bound<T> {
+		Unbounded
+	}
 }
 
 impl<T> RangeArgument<T> for RangeTo<T> {
-	fn start(&self) -> Bound<T> { Unbounded }
-	fn end(&self) -> Bound<T> { Excluded(&self.end) }
+	fn start(&self) -> Bound<T> {
+		Unbounded
+	}
+	fn end(&self) -> Bound<T> {
+		Excluded(&self.end)
+	}
 }
 
 impl<T> RangeArgument<T> for RangeFull {
-	fn start(&self) -> Bound<T> { Unbounded }
-	fn end(&self) -> Bound<T> { Unbounded }
+	fn start(&self) -> Bound<T> {
+		Unbounded
+	}
+	fn end(&self) -> Bound<T> {
+		Unbounded
+	}
 }
 
 impl RangeArgument<usize> for usize {
-	fn start(&self) -> Bound<usize> { Included(self) }
-	fn end(&self) -> Bound<usize> { Included(self) }
+	fn start(&self) -> Bound<usize> {
+		Included(self)
+	}
+	fn end(&self) -> Bound<usize> {
+		Included(self)
+	}
 }
diff --git a/src/result.rs b/src/result.rs
index 78ff16b..2c6607b 100644
--- a/src/result.rs
+++ b/src/result.rs
@@ -1,14 +1,28 @@
-use std::fmt::{self, Display};
 use std::error;
+use std::fmt::{self, Display};
 
 /// Parser error.
 #[derive(Debug, PartialEq, Clone)]
 pub enum Error {
 	Incomplete,
-	Mismatch { message: String, position: usize },
-	Conversion { message: String, position: usize },
-	Expect { message: String, position: usize, inner: Box<Error> },
-	Custom { message: String, position: usize, inner: Option<Box<Error>> },
+	Mismatch {
+		message: String,
+		position: usize,
+	},
+	Conversion {
+		message: String,
+		position: usize,
+	},
+	Expect {
+		message: String,
+		position: usize,
+		inner: Box<Error>,
+	},
+	Custom {
+		message: String,
+		position: usize,
+		inner: Option<Box<Error>>,
+	},
 }
 
 impl error::Error for Error {
@@ -20,18 +34,30 @@ impl error::Error for Error {
 impl Display for Error {
 	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
 		match self {
-			Error::Incomplete =>
-				write!(f, "Incomplete"),
-			Error::Mismatch { ref message, ref position } =>
-				write!(f, "Mismatch at {}: {}", position, message),
-			Error::Conversion { ref message, ref position } =>
-				write!(f, "Conversion failed at {}: {}", position, message),
-			Error::Expect { ref message, ref position, ref inner } =>
-				write!(f, "{} at {}: {}", message, position, inner),
-			Error::Custom { ref message, ref position, inner: Some(ref inner) } =>
-				write!(f, "{} at {}, (inner: {})", message, position, inner),
-			Error::Custom { ref message, ref position, inner: None } =>
-				write!(f, "{} at {}", message, position),
+			Error::Incomplete => write!(f, "Incomplete"),
+			Error::Mismatch {
+				ref message,
+				ref position,
+			} => write!(f, "Mismatch at {}: {}", position, message),
+			Error::Conversion {
+				ref message,
+				ref position,
+			} => write!(f, "Conversion failed at {}: {}", position, message),
+			Error::Expect {
+				ref message,
+				ref position,
+				ref inner,
+			} => write!(f, "{} at {}: {}", message, position, inner),
+			Error::Custom {
+				ref message,
+				ref position,
+				inner: Some(ref inner),
+			} => write!(f, "{} at {}, (inner: {})", message, position, inner),
+			Error::Custom {
+				ref message,
+				ref position,
+				inner: None,
+			} => write!(f, "{} at {}", message, position),
 		}
 	}
 }
diff --git a/src/set.rs b/src/set.rs
index a0ad4b1..abe9833 100644
--- a/src/set.rs
+++ b/src/set.rs
@@ -1,5 +1,5 @@
 use std::cmp::{PartialEq, PartialOrd};
-use std::ops::{Range, RangeFrom, RangeTo, RangeFull};
+use std::ops::{Range, RangeFrom, RangeFull, RangeTo};
 use std::str;
 
 /// Set relationship.
@@ -57,8 +57,7 @@ impl<T> Set<T> for RangeFull {
 	}
 }
 
-macro_rules! impl_set_for_array
-{
+macro_rules! impl_set_for_array {
 	($n:expr) => {
 		impl Set<u8> for [u8; $n] {
 			fn contains(&self, elem: &u8) -> bool {
diff --git a/tests/list.rs b/tests/list.rs
index efcc6e6..ec4d9a8 100644
--- a/tests/list.rs
+++ b/tests/list.rs
@@ -1,7 +1,7 @@
 extern crate pom;
 
-use pom::Parser;
 use pom::parser::*;
+use pom::Parser;
 
 fn spaces() -> Parser<u8, ()> {
 	one_of(b" ").repeat(1..).discard()
@@ -21,5 +21,8 @@ fn test_list() {
 	assert_eq!(works().parse(one), Ok(vec![b'a', b'b', b'c']));
 
 	let two = b"a and b and c and ";
-	assert_eq!(dangle().parse(two), Ok((vec![b'a', b'b', b'c'], &b" and"[..])));
+	assert_eq!(
+		dangle().parse(two),
+		Ok((vec![b'a', b'b', b'c'], &b" and"[..]))
+	);
 }