From e00cfa2c2e8bcdba946c400f7817fdfcbe60b144 Mon Sep 17 00:00:00 2001
From: Bastien Orivel <eijebong@bananium.fr>
Date: Mon, 12 Jun 2017 23:11:37 +0200
Subject: [PATCH] Speedup jid parsing

name        control ns/iter  variable ns/iter  diff ns/iter   diff %  speedup
big_jids    638              456                       -182  -28.53%   x 1.40
small_jids  92               91                          -1   -1.09%   x 1.01
---
 src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index 5ced4003..3f39cbcf 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -76,7 +76,7 @@ impl FromStr for Jid {
     fn from_str(s: &str) -> Result<Jid, JidParseError> {
         // TODO: very naive, may need to do it differently
         let iter = s.chars();
-        let mut buf = String::new();
+        let mut buf = String::with_capacity(s.len());
         let mut state = ParserState::Node;
         let mut node = None;
         let mut domain = None;