1 # Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 from base64 import b64encode 6 from hashlib import sha1 7 import os 8 9 def FormatKey(key): 10 '''Normalize a key by making sure it has a .html extension, and convert any 11 '.'s to '_'s. 12 ''' 13 if key.endswith('.html'): 14 key = key[:-len('.html')] 15 safe_key = key.replace('.', '_') 16 return '%s.html' % safe_key 17 18 def SanitizeAPIName(name): 19 '''Sanitizes API filenames that are in subdirectories. 20 ''' 21 filename = os.path.splitext(name)[0].replace(os.sep, '_') 22 if 'experimental' in filename: 23 filename = 'experimental_' + filename.replace('experimental_', '') 24 return filename 25 26 def StringIdentity(first, *more): 27 '''Creates a small hash of a string. 28 ''' 29 def encode(string): 30 return b64encode(sha1(string).digest()) 31 identity = encode(first) 32 for m in more: 33 identity = encode(identity + m) 34 return identity[:8] 35 36 def MarkFirst(dicts): 37 '''Adds a property 'first' == True to the first element in a list of dicts. 38 ''' 39 if len(dicts) > 0: 40 dicts[0]['first'] = True 41 42 def MarkLast(dicts): 43 '''Adds a property 'last' == True to the last element in a list of dicts. 44 ''' 45 if len(dicts) > 0: 46 dicts[-1]['last'] = True 47 48 def MarkFirstAndLast(dicts): 49 '''Marks the first and last element in a list of dicts. 50 ''' 51 MarkFirst(dicts) 52 MarkLast(dicts) 53 54 def ToUnicode(data): 55 '''Returns the str |data| as a unicode object. It's expected to be utf8, but 56 there are also latin-1 encodings in there for some reason. Fall back to that. 57 ''' 58 try: 59 return unicode(data, 'utf-8') 60 except: 61 return unicode(data, 'latin-1') 62
