From 9a9e9b1c1ab8bf74b50686ee5ecb750aec275cbf Mon Sep 17 00:00:00 2001
From: Matthew Wild <mwild1@gmail.com>
Date: Tue, 20 Jul 2010 12:37:28 +0100
Subject: util.iterators: Add skip() to skip the first n items of an iterator

---
 util/iterators.lua | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'util/iterators.lua')

diff --git a/util/iterators.lua b/util/iterators.lua
index 318c1a96..cc504827 100644
--- a/util/iterators.lua
+++ b/util/iterators.lua
@@ -90,6 +90,15 @@ function head(n, f, s, var)
 	end, s;
 end
 
+-- Skip the first n items an iterator returns
+function skip(n, f, s, var)
+	for i=1,n do
+		var = f(s, var);
+	end
+	return f, s, var;
+end
+
+-- Return the last n items an iterator returns
 function tail(n, f, s, var)
 	local results, count = {}, 0;
 	while true do
-- 
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