From d0ed2e384a3b90394ca0f160e21a4948a1dbccb0 Mon Sep 17 00:00:00 2001
From: Marijn Haverbeke <marijnh@gmail.com>
Date: Tue, 26 Apr 2011 17:38:14 +0200
Subject: Add _str.slice to std lib

---
 src/lib/_str.rs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'src/lib')

diff --git a/src/lib/_str.rs b/src/lib/_str.rs
index 3922acb6..41a86cf3 100644
--- a/src/lib/_str.rs
+++ b/src/lib/_str.rs
@@ -391,10 +391,14 @@ fn ends_with(str haystack, str needle) -> bool {
 }
 
 fn substr(str s, uint begin, uint len) -> str {
+    ret slice(s, begin, begin + len);
+}
+
+fn slice(str s, uint begin, uint end) -> str {
     let str accum = "";
     let uint i = begin;
-    while (i < begin+len) {
-        accum += unsafe_from_byte(s.(i));
+    while (i < end) {
+        push_byte(accum, s.(i));
         i += 1u;
     }
     ret accum;
-- 
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