annotate orpg/pulldom.py @ 239:56c1f2729413 beta

Traipse Beta 'OpenRPG' {100811-00} Traipse is a distribution of OpenRPG that is designed to be easy to setup and go. Traipse also makes it easy for developers to work on code without fear of sacrifice. 'Ornery-Orc' continues the trend of 'Grumpy' and adds fixes to the code. 'Ornery-Orc's main goal is to offer more advanced features and enhance the productivity of the user. Update Summary (Closing/Closed) New Features: New to Map, can re-order Grid, Miniatures, and Whiteboard layer draw order New to Server GUI, can now clear log New Earthdawn Dieroller Updates: Update to Warhammer PC Sheet. Rollers set as macros. Should work with little maintanence. Update to Browser Server window. Display rooms with ' " & cleaner Update to Server. Handles ' " & cleaner. Update to Dieroller. Cleaner, more effecient expression system. Fixes: Fix to InterParse that was causing an Infernal Loop with Namespace Internal Fix to XML data, removed old Minidom and switched to Element Tree Fix to Server that was causing eternal attempt to find a Server ID, in Register Rooms thread Fix to metaservers.xml file not being created Fix to Single and Double quotes in Whiteboard text Fix to Background images not showing when using the Image Server Fix to Duplicate chat names appearing Fix to Server GUI's logging output Fix to FNB.COLORFUL_TABS bug Fix to Gametree for XSLT Sheets Fix to Gametree for locating gametree files
author sirebral
date Wed, 11 Aug 2010 13:52:30 -0500
parents 551cd440acce
children
rev   line source
0
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1 import minidom
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2 import xml.sax,xml.sax.handler
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3 import types
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4
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5 try: from cStringIO import StringIO
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6 except ImportError: from StringIO import StringIO
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7
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8 try: _StringTypes = [types.StringType, types.UnicodeType]
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9 except AttributeError: _StringTypes = [types.StringType]
0
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10
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11 START_ELEMENT = "START_ELEMENT"
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12 END_ELEMENT = "END_ELEMENT"
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13 COMMENT = "COMMENT"
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14 START_DOCUMENT = "START_DOCUMENT"
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15 END_DOCUMENT = "END_DOCUMENT"
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16 PROCESSING_INSTRUCTION = "PROCESSING_INSTRUCTION"
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17 IGNORABLE_WHITESPACE = "IGNORABLE_WHITESPACE"
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18 CHARACTERS = "CHARACTERS"
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19
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20 class PullDOM(xml.sax.ContentHandler):
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21 def __init__(self):
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22 self.firstEvent = [None, None]
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23 self.lastEvent = self.firstEvent
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24 self._ns_contexts = [{}] # contains uri -> prefix dicts
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25 self._current_context = self._ns_contexts[-1]
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26
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27 def setDocumentLocator(self, locator): pass
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28
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29 def startPrefixMapping(self, prefix, uri):
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30 self._ns_contexts.append(self._current_context.copy())
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31 self._current_context[uri] = prefix
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32
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33 def endPrefixMapping(self, prefix):
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34 del self._ns_contexts[-1]
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35
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36 def startElementNS(self, name, tagName , attrs):
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37 uri,localname = name
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38 if uri:
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39 # When using namespaces, the reader may or may not
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40 # provide us with the original name. If not, create
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41 # *a* valid tagName from the current context.
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42 if tagName is None: tagName = self._current_context[uri] + ":" + localname
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43 node = self.document.createElementNS(uri, tagName)
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44 else:
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45 # When the tagname is not prefixed, it just appears as
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46 # localname
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47 node = self.document.createElement(localname)
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48 for aname,value in attrs.items():
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49 a_uri, a_localname = aname
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50 if a_uri:
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51 qname = self._current_context[a_uri] + ":" + a_localname
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52 attr = self.document.createAttributeNS(a_uri, qname)
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53 else: attr = self.document.createAttribute(a_localname)
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54 attr.value = value
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55 node.setAttributeNode(attr)
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56 parent = self.curNode
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57 node.parentNode = parent
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58 self.curNode = node
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59 self.lastEvent[1] = [(START_ELEMENT, node), None]
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60 self.lastEvent = self.lastEvent[1]
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61 #self.events.append((START_ELEMENT, node))
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62
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63 def endElementNS(self, name, tagName):
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64 node = self.curNode
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65 self.lastEvent[1] = [(END_ELEMENT, node), None]
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66 self.lastEvent = self.lastEvent[1]
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67 #self.events.append((END_ELEMENT, node))
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68 self.curNode = node.parentNode
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69
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70 def startElement(self, name, attrs):
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71 node = self.document.createElement(name)
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72 for aname,value in attrs.items():
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73 attr = self.document.createAttribute(aname)
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74 attr.value = value
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75 node.setAttributeNode(attr)
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76 parent = self.curNode
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77 node.parentNode = parent
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78 self.curNode = node
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79 self.lastEvent[1] = [(START_ELEMENT, node), None]
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80 self.lastEvent = self.lastEvent[1]
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81 #self.events.append((START_ELEMENT, node))
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82
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83 def endElement(self, name):
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84 node = self.curNode
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85 self.lastEvent[1] = [(END_ELEMENT, node), None]
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86 self.lastEvent = self.lastEvent[1]
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87 #self.events.append((END_ELEMENT, node))
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88 self.curNode = node.parentNode
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89
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90 def comment(self, s):
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91 node = self.document.createComment(s)
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92 parent = self.curNode
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93 node.parentNode = parent
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94 self.lastEvent[1] = [(COMMENT, node), None]
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95 self.lastEvent = self.lastEvent[1]
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96 #self.events.append((COMMENT, node))
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97
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98 def processingInstruction(self, target, data):
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99 node = self.document.createProcessingInstruction(target, data)
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100 parent = self.curNode
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101 node.parentNode = parent
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102 self.lastEvent[1] = [(PROCESSING_INSTRUCTION, node), None]
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103 self.lastEvent = self.lastEvent[1]
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104 #self.events.append((PROCESSING_INSTRUCTION, node))
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105
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106 def ignorableWhitespace(self, chars):
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107 node = self.document.createTextNode(chars[start:start + length])
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108 parent = self.curNode
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109 node.parentNode = parent
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110 self.lastEvent[1] = [(IGNORABLE_WHITESPACE, node), None]
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111 self.lastEvent = self.lastEvent[1]
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112 #self.events.append((IGNORABLE_WHITESPACE, node))
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113
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114 def characters(self, chars):
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115 node = self.document.createTextNode(chars)
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116 parent = self.curNode
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117 node.parentNode = parent
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118 self.lastEvent[1] = [(CHARACTERS, node), None]
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119 self.lastEvent = self.lastEvent[1]
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120
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121 def startDocument(self):
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122 node = self.curNode = self.document = minidom.Document()
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123 node.parentNode = None
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124 self.lastEvent[1] = [(START_DOCUMENT, node), None]
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125 self.lastEvent = self.lastEvent[1]
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126 #self.events.append((START_DOCUMENT, node))
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127
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128 def endDocument(self):
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129 assert not self.curNode.parentNode
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130 for node in self.curNode.childNodes:
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131 if node.nodeType == node.ELEMENT_NODE: self.document.documentElement = node
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132 #if not self.document.documentElement:
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133 # raise Error, "No document element"
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134 self.lastEvent[1] = [(END_DOCUMENT, node), None]
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135 #self.events.append((END_DOCUMENT, self.curNode))
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136
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137 class ErrorHandler:
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138 def warning(self, exception):
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139 print exception
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140 def error(self, exception):
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141 raise exception
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142 def fatalError(self, exception):
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143 raise exception
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144
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145 class DOMEventStream:
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146 def __init__(self, stream, parser, bufsize):
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147 self.stream = stream
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148 self.parser = parser
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149 self.bufsize = bufsize
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150 self.reset()
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151
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152 def reset(self):
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153 self.pulldom = PullDOM()
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154 # This content handler relies on namespace support
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155 self.parser.setFeature(xml.sax.handler.feature_namespaces,1)
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156 self.parser.setContentHandler(self.pulldom)
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157
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158 def __getitem__(self, pos):
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159 rc = self.getEvent()
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160 if rc: return rc
0
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161 raise IndexError
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162
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163 def expandNode(self, node):
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164 event = self.getEvent()
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165 while event:
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166 token, cur_node = event
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167 if cur_node is node: return
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168 if token != END_ELEMENT: cur_node.parentNode.appendChild(cur_node)
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169 event = self.getEvent()
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170
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171 def getEvent(self):
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172 if not self.pulldom.firstEvent[1]: self.pulldom.lastEvent = self.pulldom.firstEvent
0
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173 while not self.pulldom.firstEvent[1]:
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174 buf=self.stream.read(self.bufsize)
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175 if not buf:
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176 #FIXME: why doesn't Expat close work?
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177 #self.parser.close()
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178 return None
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179 self.parser.feed(buf)
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180 rc = self.pulldom.firstEvent[1][0]
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181 self.pulldom.firstEvent[1] = self.pulldom.firstEvent[1][1]
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182 return rc
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183
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184 class SAX2DOM(PullDOM):
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185
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186 def startElementNS(self, name, tagName , attrs):
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187 PullDOM.startElementNS(self, name, tagName, attrs)
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188 self.curNode.parentNode.appendChild(self.curNode)
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189
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190 def startElement(self, name, attrs):
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191 PullDOM.startElement(self, name, attrs)
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192 self.curNode.parentNode.appendChild(self.curNode)
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193
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194 def processingInstruction(self, target, data):
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195 PullDOM.processingInstruction(self, target, data)
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196 node = self.lastEvent[0][1]
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197 node.parentNode.appendChild(node)
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198
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199 def ignorableWhitespace(self, chars):
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200 PullDOM.ignorableWhitespace(self, chars)
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201 node = self.lastEvent[0][1]
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202 node.parentNode.appendChild(node)
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203
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204 def characters(self, chars):
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205 PullDOM.characters(self, chars)
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206 node = self.lastEvent[0][1]
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207 node.parentNode.appendChild(node)
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208
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209 default_bufsize = (2 ** 14) - 20
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210
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211 def parse(stream_or_string, parser=None, bufsize=default_bufsize):
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212 if type(stream_or_string) in _StringTypes: stream = open(stream_or_string)
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213 else: stream = stream_or_string
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214 if not parser: parser = xml.sax.make_parser()
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215 return DOMEventStream(stream, parser, bufsize)
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216
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217 def parseString(string, parser=None):
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218 bufsize = len(string)
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219 buf = StringIO(string)
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220 if not parser: parser = xml.sax.make_parser()
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221 return DOMEventStream(buf, parser, bufsize)