Index: grit/extern/FP.py |
diff --git a/grit/extern/FP.py b/grit/extern/FP.py |
deleted file mode 100644 |
index 3bde18dcfccf60f70959c56b8882d1c1d4f5f460..0000000000000000000000000000000000000000 |
--- a/grit/extern/FP.py |
+++ /dev/null |
@@ -1,71 +0,0 @@ |
-#!/usr/bin/env python |
-# Copyright (c) 2012 The Chromium Authors. All rights reserved. |
-# Use of this source code is governed by a BSD-style license that can be |
-# found in the LICENSE file. |
- |
-try: |
- import hashlib |
- _new_md5 = hashlib.md5 |
-except ImportError: |
- import md5 |
- _new_md5 = md5.new |
- |
- |
-"""64-bit fingerprint support for strings. |
- |
-Usage: |
- from extern import FP |
- print 'Fingerprint is %ld' % FP.FingerPrint('Hello world!') |
-""" |
- |
- |
-def _UnsignedFingerPrintImpl(str, encoding='utf-8'): |
- """Generate a 64-bit fingerprint by taking the first half of the md5 |
- of the string. |
- """ |
- hex128 = _new_md5(str).hexdigest() |
- int64 = long(hex128[:16], 16) |
- return int64 |
- |
- |
-def UnsignedFingerPrint(str, encoding='utf-8'): |
- """Generate a 64-bit fingerprint. |
- |
- The default implementation uses _UnsignedFingerPrintImpl, which |
- takes the first half of the md5 of the string, but the |
- implementation may be switched using SetUnsignedFingerPrintImpl. |
- """ |
- return _UnsignedFingerPrintImpl(str, encoding) |
- |
- |
-def FingerPrint(str, encoding='utf-8'): |
- fp = UnsignedFingerPrint(str, encoding=encoding) |
- # interpret fingerprint as signed longs |
- if fp & 0x8000000000000000L: |
- fp = - ((~fp & 0xFFFFFFFFFFFFFFFFL) + 1) |
- return fp |
- |
- |
-def UseUnsignedFingerPrintFromModule(module_name): |
- """Imports module_name and replaces UnsignedFingerPrint in the |
- current module with the function of the same name from the imported |
- module. |
- |
- Returns the function object previously known as |
- grit.extern.FP.UnsignedFingerPrint. |
- """ |
- hash_module = __import__(module_name, fromlist=[module_name]) |
- return SetUnsignedFingerPrint(hash_module.UnsignedFingerPrint) |
- |
- |
-def SetUnsignedFingerPrint(function_object): |
- """Sets grit.extern.FP.UnsignedFingerPrint to point to |
- function_object. |
- |
- Returns the function object previously known as |
- grit.extern.FP.UnsignedFingerPrint. |
- """ |
- global UnsignedFingerPrint |
- original_function_object = UnsignedFingerPrint |
- UnsignedFingerPrint = function_object |
- return original_function_object |