remove murmur2-32-hash.rb

utils/murmur2-32-hash.rb

@@ -1,80 +0,0 @@
-# Copyright (c) 2013 Daniele Bartolini, Michele Rossi
-# Copyright (c) 2012 Daniele Bartolini, Simone Boscaratto
-# 
-# Permission is hereby granted, free of charge, to any person
-# obtaining a copy of this software and associated documentation
-# files (the "Software"), to deal in the Software without
-# restriction, including without limitation the rights to use,
-# copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the
-# Software is furnished to do so, subject to the following
-# conditions:
-# 
-# The above copyright notice and this permission notice shall be
-# included in all copies or substantial portions of the Software.
-# 
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
-# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
-# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-# OTHER DEALINGS IN THE SOFTWARE.
-
-# MurmurHash2, by Austin Appleby
-def murmur2_32(string, seed)
-
-    m = 0x5bd1e995
-    r = 24
-    len = string.length
-
-    h = seed ^ len
-
-    data = string.bytes.to_a
-
-    while len >= 4
-      	k = data[0]
-      	k |= data[1] << 8
-      	k |= data[2] << 16
-      	k |= data[3] << 24
-
-      	k = ( k * m ) % 0x100000000
-      	k ^= k >> r
-      	k = ( k * m ) % 0x100000000
-
-      	h = ( h * m ) % 0x100000000
-      	h ^= k
-
-      	len -= 4
-    end
-
-    if len == 3 then
-      h ^= data[-1] << 16
-      h ^= data[-2] << 8
-      h ^= data[-3]
-    end
-    if len == 2 then
-      h ^= data[-1] << 8
-      h ^= data[-2]
-    end
-    if len == 1 then
-      h ^= data[-1]
-    end
-
-    h = ( h * m ) % 0x100000000
-    h ^= h >> 13
-    h = ( h * m ) % 0x100000000
-    h ^= h >> 15
-
-    return h
-end
-
-if ARGV.length != 2
-	print "Usage: ruby murmur2-hash.rb <string> <seed>\n"
-	exit
-end
-
-result = murmur2_32(ARGV[0], ARGV[1].to_i)
-
-print result.to_s(16) + "\n";