From 3c73cc28e0bf12d54f344135b35c5af8feaf0a77 Mon Sep 17 00:00:00 2001
From: Jack Nagel <jacknagel@gmail.com>
Date: Sun, 14 Apr 2013 18:20:09 -0500
Subject: [PATCH] Optimization: avoid repeated interpolation in regexp

Benchmark.bm do |b|
  b.report("before") do
    100_000.times { /(\.#{MacOS.cat}\.bottle\.(\d+\.)?tar\.gz)$/ }
  end
  b.report("after ") do
    100_000.times { /(\.#{MacOS.cat}\.bottle\.(\d+\.)?tar\.gz)$/o }
  end
end
            user     system      total        real
before 35.400000   0.140000  35.540000 ( 35.619674)
after   0.020000   0.000000   0.020000 (  0.016662)
---
 Library/Homebrew/bottles.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Library/Homebrew/bottles.rb b/Library/Homebrew/bottles.rb
index 32b6f84717..159654c48b 100644
--- a/Library/Homebrew/bottles.rb
+++ b/Library/Homebrew/bottles.rb
@@ -63,7 +63,7 @@ def bottle_suffix revision=nil
 end
 
 def bottle_native_regex
-  /(\.#{MacOS.cat}\.bottle\.(\d+\.)?tar\.gz)$/
+  /(\.#{MacOS.cat}\.bottle\.(\d+\.)?tar\.gz)$/o
 end
 
 def bottle_regex