From 1b8de6bb18ca00264cbcadfbcd5781ce16231166 Mon Sep 17 00:00:00 2001
From: Nils Maier <maierman@web.de>
Date: Sat, 24 Aug 2013 21:54:36 +0200
Subject: [PATCH] Add fast-path to percentEncode(string&)

---
 src/util.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/util.cc b/src/util.cc
index e0c8b20c..4f5cbd92 100644
--- a/src/util.cc
+++ b/src/util.cc
@@ -433,6 +433,10 @@ std::string percentEncode(const unsigned char* target, size_t len)
 
 std::string percentEncode(const std::string& target)
 {
+  if (std::find_if_not(target.begin(), target.end(),
+                       inRFC3986UnreservedChars) == target.end()) {
+    return target;
+  }
   return percentEncode(reinterpret_cast<const unsigned char*>(target.c_str()),
                        target.size());
 }