Package pywurfl :: Package algorithms :: Package wurfl :: Module utils
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Source Code for Module pywurfl.algorithms.wurfl.utils

 1  # pywurfl - Wireless Universal Resource File Tools in Python 
 2  # Copyright (C) 2006-2010 Armand Lynch 
 3  # 
 4  # This library is free software; you can redistribute it and/or modify it 
 5  # under the terms of the GNU Lesser General Public License as published by the 
 6  # Free Software Foundation; either version 2.1 of the License, or (at your 
 7  # option) any later version. 
 8  # 
 9  # This library is distributed in the hope that it will be useful, but WITHOUT 
10  # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 
11  # FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more 
12  # details. 
13  # 
14  # You should have received a copy of the GNU Lesser General Public License 
15  # along with this library; if not, write to the Free Software Foundation, Inc., 
16  # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 
17  # 
18  # Armand Lynch <lyncha@users.sourceforge.net> 
19   
20  __doc__ = """ 
21  This module contains the supporting classes for the Two Step Analysis user agent 
22  algorithm that is used as the primary way to match user agents with the Java API 
23  for the WURFL. 
24   
25  A description of the way the following source is intended to work can be found 
26  within the source for the original Java API implementation here: 
27  http://sourceforge.net/projects/wurfl/files/WURFL Java API/ 
28   
29  The original Java code is GPLd and Copyright (c) 2008-2009 WURFL-Pro srl 
30  """ 
31   
32  __author__ = "Armand Lynch <lyncha@users.sourceforge.net>" 
33  __copyright__ = "Copyright 2010, Armand Lynch" 
34  __license__ = "LGPL" 
35  __url__ = "http://celljam.net/" 
36  __version__ = "1.0.1" 
37   
38  from functools import partial 
39   
40   
41 -def is_mobile_browser(user_agent):
42 user_agent = user_agent.lower() 43 mobile_browsers = [u"tablet", u"mobile", u"wireless", u"palm", u"blazer", 44 u"netfront", u"symbian", u"bolt", u"iris", u"pocketpc"] 45 for mb in mobile_browsers: 46 if mb in user_agent: 47 return True 48 return False
49 50
51 -def ordinal_index(target, needle=u" ", ordinal=1, start_index=0):
52 index = -1 53 54 working_target = target[start_index+1:] 55 56 if needle in working_target: 57 i = 0 58 for i, x in enumerate(working_target.split(needle)): 59 if ordinal < 1: 60 break 61 index += len(x) 62 ordinal -= 1 63 index += (i * len(needle)) + start_index + 1 64 index = index - (len(needle) - 1) 65 if ordinal != 0: 66 index = -1 67 return index
68 69
70 -def find_or_length(func, user_agent):
71 value = func(user_agent) 72 if value == -1: 73 value = len(user_agent) 74 return value
75 76
77 -def indexof_or_length(target, needle=u" ", position=1, start_index=0):
78 value = ordinal_index(target, needle, position, start_index) 79 if value == -1: 80 value = len(target) 81 return value
82 83 84 first_space = indexof_or_length 85 first_slash = partial(indexof_or_length, needle=u"/") 86 second_slash = partial(indexof_or_length, needle=u"/", position=2) 87 first_semi_colon = partial(indexof_or_length, needle=u";") 88