Decrease number of heap allocations, and more

Sent over the course of 2 diffs, no real functionality changes, but a
couple general code improvements.  The second email reads:

> string encoding/decoding has been rewritten.  The duplicate_elements()
> function no longer allocates like crazy.  The try_move() and do_move()
> functions still need work, but have not been touched because they will
> likely be rewritten shortly.

1 files changed, 0 insertions, 26 deletions

diff --git a/src/encoded_string.rs b/src/encoded_string.rs
deleted file mode 100644
index 55090a9..0000000
--- a/src/encoded_string.rs
+++ /dev/null
@@ -1,26 +0,0 @@
-use std::str;
-
-pub struct EncodedString<'a> {
-    pub s: str::Bytes<'a>,
-}
-
-impl<'a> Iterator for EncodedString<'a> {
-	type Item = u8;
-
-	fn next(&mut self) -> Option<Self::Item> {
-		self.s.next().map(|c| match c {
-			b'\\' => match self.s.next() {
-				Some(b'n') => b'\n',
-				Some(b'\\') | None => b'\\',
-				Some(c) => c
-			},
-			c => c
-		})
-	}
-}
-
-impl<'a> EncodedString<'a> {
-	pub fn decode(self) -> String {
-		String::from_utf8(self.s.collect()).unwrap()
-	}
-}