Adds rail

[rails.git] / lib / short_link.rb

diff --git a/lib/short_link.rb b/lib/short_link.rb
index 0d8f21cadf643b63b4900f227b5c1092980958bb..ddf37b67acf02bc9a51ae5cdac5f62ea5dae6c4f 100644 (file)
--- a/lib/short_link.rb
+++ b/lib/short_link.rb
@@ -8,7 +8,7 @@ module ShortLink
   # array of 64 chars to encode 6 bits. this is almost like base64 encoding, but
   # the symbolic chars are different, as base64's + and / aren't very
   # URL-friendly.
-  ARRAY = ('A'..'Z').to_a + ('a'..'z').to_a + ('0'..'9').to_a + ['_', '~']
+  ARRAY = ("A".."Z").to_a + ("a".."z").to_a + ("0".."9").to_a + ["_", "~"]
 
   ##
   # Given a string encoding a location, returns the [lon, lat, z] tuple of that
@@ -30,8 +30,13 @@ module ShortLink
         z_offset -= 1
       else
         3.times do
-          x <<= 1; x |= 1 unless (t & 32).zero?; t <<= 1
-          y <<= 1; y |= 1 unless (t & 32).zero?; t <<= 1
+          x <<= 1
+          x |= 1 unless (t & 32).zero?
+          t <<= 1
+
+          y <<= 1
+          y |= 1 unless (t & 32).zero?
+          t <<= 1
         end
         z += 3
       end
@@ -50,7 +55,7 @@ module ShortLink
   # given a location and zoom, return a short string representing it.
   def self.encode(lon, lat, z)
     code = interleave_bits(((lon + 180.0) * 2**32 / 360.0).to_i,
-                           ((lat +  90.0) * 2**32 / 180.0).to_i)
+                           ((lat + 90.0) * 2**32 / 180.0).to_i)
     str = ""
     # add eight to the zoom level, which approximates an accuracy of
     # one pixel in a tile.