Mercurial > libervia-web

annotate src/browser/collections.py @ 976:0f676f09404b

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author Goffi <goffi@goffi.org>
date Sat, 11 Nov 2017 18:57:01 +0100
parents 44df078187b9
children
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rev   line source
589
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # Libervia: a Salut à Toi frontend
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5 # Copyright (C) 2014 Jérôme Poisson <goffi@goffi.org>
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 class OrderedDict(object):
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21 """Naive implementation of OrderedDict which is compatible with pyjamas"""
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22
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23 def __init__(self, *args, **kwargs):
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24 self.__internal_dict = {}
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25 self.__keys = [] # this list keep the keys in order
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26 if args:
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27 if len(args)>1:
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28 raise TypeError("OrderedDict expected at most 1 arguments, got {}".format(len(args)))
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29 if isinstance(args[0], (dict, OrderedDict)):
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30 for key, value in args[0].iteritems():
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31 self[key] = value
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32 for key, value in args[0]:
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33 self[key] = value
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34
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35 def __len__(self):
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36 return len(self.__keys)
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37
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38 def __setitem__(self, key, value):
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39 if key not in self.__keys:
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40 self.__keys.append(key)
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41 self.__internal_dict[key] = value
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42
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43 def __getitem__(self, key):
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44 return self.__internal_dict[key]
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45
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46 def __delitem__(self, key):
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47 del self.__internal_dict[key]
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48 self.__keys.remove(key)
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49
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50 def __contains__(self, key):
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51 return key in self.__keys
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52
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53 def clear(self):
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54 self.__internal_dict.clear()
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55 del self.__keys[:]
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56
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57 def copy(self):
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58 return OrderedDict(self)
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59
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60 @classmethod
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61 def fromkeys(cls, seq, value=None):
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62 ret = OrderedDict()
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63 for key in seq:
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64 ret[key] = value
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65 return ret
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66
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67 def get(self, key, default=None):
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68 try:
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69 return self.__internal_dict[key]
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70 except KeyError:
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71 return default
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72
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73 def has_key(self, key):
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74 return key in self.__keys
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75
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76 def keys(self):
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77 return self.__keys[:]
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78
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79 def iterkeys(self):
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80 for key in self.__keys:
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81 yield key
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82
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83 def items(self):
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84 ret = []
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85 for key in self.__keys:
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86 ret.append((key, self.__internal_dict[key]))
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87 return ret
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88
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89 def iteritems(self):
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90 for key in self.__keys:
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91 yield (key, self.__internal_dict[key])
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92
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93 def values(self):
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94 ret = []
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95 for key in self.__keys:
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96 ret.append(self.__internal_dict[key])
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97 return ret
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98
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99 def itervalues(self):
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100 for key in self.__keys:
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101 yield (self.__internal_dict[key])
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102
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103 def popitem(self, last=True):
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104 try:
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105 key = self.__keys.pop(-1 if last else 0)
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106 except IndexError:
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107 raise KeyError('dictionnary is empty')
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108 value = self.__internal_dict.pop(key)
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109 return((key, value))
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110
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111 def setdefault(self, key, default=None):
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112 try:
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113 return self.__internal_dict[key]
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114 except KeyError:
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115 self[key] = default
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116 return default
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117
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118 def update(self, *args, **kwargs):
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119 if len(args) > 1:
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120 raise TypeError('udpate expected at most 1 argument, got {}'.format(len(args)))
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121 if args:
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122 if hasattr(args[0], 'keys'):
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123 for k in args[0]:
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124 self[k] = args[0][k]
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125 else:
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126 for (k, v) in args[0]:
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127 self[k] = v
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128 for k, v in kwargs.items():
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129 self[k] = v
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130
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131 def pop(self, *args):
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132 if not args:
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133 raise TypeError('pop expected at least 1 argument, got 0')
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134 try:
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135 self.__internal_dict.pop(args[0])
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136 except KeyError:
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137 if len(args) == 2:
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138 return args[1]
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139 raise KeyError(args[0])
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140 self.__keys.remove(args[0])
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141
661
2664fe93ceb3 browser_side: implements collections.OrderedDict.__contains__ to fix an error while doing "presence in C.PRESENCE"
souliane <souliane@mailoo.org>
parents: 589
diff changeset
142 def viewitems(self):
589
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143 raise NotImplementedError
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144
661
2664fe93ceb3 browser_side: implements collections.OrderedDict.__contains__ to fix an error while doing "presence in C.PRESENCE"
souliane <souliane@mailoo.org>
parents: 589
diff changeset
145 def viewkeys(self):
589
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146 raise NotImplementedError
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147
661
2664fe93ceb3 browser_side: implements collections.OrderedDict.__contains__ to fix an error while doing "presence in C.PRESENCE"
souliane <souliane@mailoo.org>
parents: 589
diff changeset
148 def viewvalues(self):
589
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149 raise NotImplementedError