annotate emeraldtree/ElementTree.py @ 13:99619772e57c

Move imports. emeraldtree/ElementTree.py: Move re and sys import. PEP8 compilance.
author Bastian Blank <bblank@thinkmo.de>
date Sat, 31 May 2008 16:28:41 +0200
parents 1eb02b658530
children 3d7555e0be1b
rev   line source
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1 #
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2 # ElementTree
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3 # $Id: ElementTree.py 3276 2007-09-12 06:52:30Z fredrik $
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4 #
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5 # light-weight XML support for Python 2.2 and later.
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6 #
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7 # history:
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8 # 2001-10-20 fl created (from various sources)
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9 # 2001-11-01 fl return root from parse method
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10 # 2002-02-16 fl sort attributes in lexical order
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11 # 2002-04-06 fl TreeBuilder refactoring, added PythonDoc markup
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12 # 2002-05-01 fl finished TreeBuilder refactoring
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13 # 2002-07-14 fl added basic namespace support to ElementTree.write
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14 # 2002-07-25 fl added QName attribute support
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15 # 2002-10-20 fl fixed encoding in write
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16 # 2002-11-24 fl changed default encoding to ascii; fixed attribute encoding
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17 # 2002-11-27 fl accept file objects or file names for parse/write
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18 # 2002-12-04 fl moved XMLTreeBuilder back to this module
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19 # 2003-01-11 fl fixed entity encoding glitch for us-ascii
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20 # 2003-02-13 fl added XML literal factory
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21 # 2003-02-21 fl added ProcessingInstruction/PI factory
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22 # 2003-05-11 fl added tostring/fromstring helpers
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23 # 2003-05-26 fl added ElementPath support
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24 # 2003-07-05 fl added makeelement factory method
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25 # 2003-07-28 fl added more well-known namespace prefixes
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26 # 2003-08-15 fl fixed typo in ElementTree.findtext (Thomas Dartsch)
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27 # 2003-09-04 fl fall back on emulator if ElementPath is not installed
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28 # 2003-10-31 fl markup updates
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29 # 2003-11-15 fl fixed nested namespace bug
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30 # 2004-03-28 fl added XMLID helper
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31 # 2004-06-02 fl added default support to findtext
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32 # 2004-06-08 fl fixed encoding of non-ascii element/attribute names
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33 # 2004-08-23 fl take advantage of post-2.1 expat features
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34 # 2004-09-03 fl made Element class visible; removed factory
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35 # 2005-02-01 fl added iterparse implementation
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36 # 2005-03-02 fl fixed iterparse support for pre-2.2 versions
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37 # 2005-11-12 fl added tostringlist/fromstringlist helpers
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38 # 2006-07-05 fl merged in selected changes from the 1.3 sandbox
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39 # 2006-07-05 fl removed support for 2.1 and earlier
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40 # 2007-06-21 fl added deprecation/future warnings
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41 # 2007-08-25 fl added doctype hook, added parser version attribute etc
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42 # 2007-08-26 fl added new serializer code (better namespace handling, etc)
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43 # 2007-08-27 fl warn for broken /tag searches on tree level
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44 # 2007-09-02 fl added html/text methods to serializer (experimental)
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45 # 2007-09-05 fl added method argument to tostring/tostringlist
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46 # 2007-09-06 fl improved error handling
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47 #
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48 # Copyright (c) 1999-2007 by Fredrik Lundh. All rights reserved.
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49 #
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50 # fredrik@pythonware.com
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51 # http://www.pythonware.com
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52 #
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53 # --------------------------------------------------------------------
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54 # The ElementTree toolkit is
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55 #
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56 # Copyright (c) 1999-2007 by Fredrik Lundh
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57 #
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58 # By obtaining, using, and/or copying this software and/or its
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59 # associated documentation, you agree that you have read, understood,
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60 # and will comply with the following terms and conditions:
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61 #
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62 # Permission to use, copy, modify, and distribute this software and
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63 # its associated documentation for any purpose and without fee is
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64 # hereby granted, provided that the above copyright notice appears in
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65 # all copies, and that both that copyright notice and this permission
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66 # notice appear in supporting documentation, and that the name of
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67 # Secret Labs AB or the author not be used in advertising or publicity
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68 # pertaining to distribution of the software without specific, written
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69 # prior permission.
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70 #
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71 # SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
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72 # TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANT-
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73 # ABILITY AND FITNESS. IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR
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74 # BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
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75 # DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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76 # WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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77 # ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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78 # OF THIS SOFTWARE.
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79 # --------------------------------------------------------------------
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80
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81 from __future__ import generators
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82
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83 __all__ = [
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84 # public symbols
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85 "Comment",
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86 "dump",
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87 "Element", "ElementTree",
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88 "fromstring", "fromstringlist",
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89 "iselement", "iterparse",
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90 "Node",
0
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91 "parse", "ParseError",
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92 "PI", "ProcessingInstruction",
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93 "QName",
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94 "SubElement",
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95 "tostring", "tostringlist",
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96 "TreeBuilder",
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97 "VERSION",
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98 "XML",
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99 "XMLParser", "XMLTreeBuilder",
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100 ]
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101
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102 ##
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103 # The <b>Element</b> type is a flexible container object, designed to
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104 # store hierarchical data structures in memory. The type can be
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105 # described as a cross between a list and a dictionary.
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106 # <p>
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107 # Each element has a number of properties associated with it:
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108 # <ul>
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109 # <li>a <i>tag</i>. This is a string identifying what kind of data
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110 # this element represents (the element type, in other words).</li>
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111 # <li>a number of <i>attributes</i>, stored in a Python dictionary.</li>
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112 # <li>a <i>text</i> string.</li>
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113 # <li>an optional <i>tail</i> string.</li>
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114 # <li>a number of <i>child elements</i>, stored in a Python sequence</li>
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115 # </ul>
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116 #
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117 # To create an element instance, use the {@link #Element} constructor
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118 # or the {@link #SubElement} factory function.
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119 # <p>
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120 # The {@link #ElementTree} class can be used to wrap an element
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121 # structure, and convert it from and to XML.
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122 ##
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123
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124 class _SimpleElementPath(object):
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125 # emulate pre-1.2 find/findtext/findall behaviour
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126 def find(self, element, tag):
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127 for elem in element:
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128 if elem.tag == tag:
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129 return elem
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130 return None
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131 def findtext(self, element, tag, default=None):
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132 for elem in element:
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133 if elem.tag == tag:
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134 return elem.text or ""
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135 return default
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136 def findall(self, element, tag):
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137 if tag[:3] == ".//":
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138 return element.getiterator(tag[3:])
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139 result = []
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140 for elem in element:
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141 if elem.tag == tag:
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142 result.append(elem)
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143 return result
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144
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145 try:
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146 import ElementPath
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147 except ImportError:
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148 # FIXME: issue warning in this case?
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149 ElementPath = _SimpleElementPath()
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150
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151 VERSION = "1.3a2"
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152
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153 class ParseError(SyntaxError):
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154 pass
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155
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156 # --------------------------------------------------------------------
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157
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158 ##
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159 # Checks if an object appears to be a valid element object.
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160 #
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161 # @param An element instance.
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162 # @return A true value if this is an element object.
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163 # @defreturn flag
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164
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165 def iselement(element):
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166 return isinstance(element, (Node, basestring))
0
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167
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168 class Node(object):
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169 """
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170 Node class.
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171 """
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172
0
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173 ##
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174 # Element class. This class defines the Element interface, and
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175 # provides a reference implementation of this interface.
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176 # <p>
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177 # The element name, attribute names, and attribute values can be
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178 # either 8-bit ASCII strings or Unicode strings.
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179 #
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180 # @param tag The element name.
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181 # @param attrib An optional dictionary, containing element attributes.
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182 # @param **extra Additional attributes, given as keyword arguments.
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183 # @see Element
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184 # @see SubElement
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185 # @see Comment
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186 # @see ProcessingInstruction
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187
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188 class Element(Node):
0
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189 # <tag attrib>text<child/>...</tag>tail
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190
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191 ##
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192 # (Attribute) Element tag.
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193
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194 tag = None
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195
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196 ##
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197 # (Attribute) Element attribute dictionary. Where possible, use
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198 # {@link #Element.get},
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199 # {@link #Element.set},
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200 # {@link #Element.keys}, and
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201 # {@link #Element.items} to access
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202 # element attributes.
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203
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204 attrib = None
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205
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206 ##
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207 # (Attribute) Text before first subelement. This is either a
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208 # string or the value None, if there was no text.
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209
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210 @property
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211 def text(self):
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212 if len(self) and isinstance(self[0], basestring):
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213 return self[0]
0
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214
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215 ##
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216 # (Attribute) Text after this element's end tag, but before the
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217 # next sibling element's start tag. This is either a string or
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218 # the value None, if there was no text.
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219
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220 @property
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221 def tail(self):
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222 raise RuntimeError('The tail argument is not supported')
0
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223
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224 def __init__(self, tag, attrib={}, **extra):
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225 attrib = attrib.copy()
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226 attrib.update(extra)
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227 self.tag = tag
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228 self.attrib = attrib
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229 self._children = []
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230
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231 def __repr__(self):
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232 return "<Element %s at %x>" % (repr(self.tag), id(self))
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233
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234 ##
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235 # Creates a new element object of the same type as this element.
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236 #
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237 # @param tag Element tag.
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238 # @param attrib Element attributes, given as a dictionary.
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239 # @return A new element instance.
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240
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241 def makeelement(self, tag, attrib):
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242 return Element(tag, attrib)
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243
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244 ##
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245 # Returns the number of subelements.
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246 #
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247 # @return The number of subelements.
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248
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249 def __len__(self):
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250 return len(self._children)
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251
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252 def __nonzero__(self):
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253 import warnings
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254 warnings.warn(
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255 "The behavior of this method will change in future versions. "
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256 "Use specific 'len(elem)' or 'elem is not None' test instead.",
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257 FutureWarning
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258 )
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259 return len(self._children) != 0 # emulate old behaviour
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260
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261 ##
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262 # Returns the given subelement.
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263 #
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264 # @param index What subelement to return.
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265 # @return The given subelement.
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266 # @exception IndexError If the given element does not exist.
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267
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268 def __getitem__(self, index):
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269 return self._children[index]
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270
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271 ##
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272 # Replaces the given subelement.
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273 #
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274 # @param index What subelement to replace.
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275 # @param element The new element value.
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276 # @exception IndexError If the given element does not exist.
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277 # @exception AssertionError If element is not a valid object.
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278
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279 def __setitem__(self, index, element):
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280 assert iselement(element)
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281 self._children[index] = element
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282
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283 ##
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284 # Deletes the given subelement.
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285 #
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286 # @param index What subelement to delete.
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287 # @exception IndexError If the given element does not exist.
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288
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289 def __delitem__(self, index):
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290 del self._children[index]
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291
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292 ##
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293 # Returns a list containing subelements in the given range.
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294 #
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295 # @param start The first subelement to return.
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296 # @param stop The first subelement that shouldn't be returned.
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297 # @return A sequence object containing subelements.
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298
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299 def __getslice__(self, start, stop):
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300 return self._children[start:stop]
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301
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302 ##
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303 # Replaces a number of subelements with elements from a sequence.
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304 #
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305 # @param start The first subelement to replace.
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306 # @param stop The first subelement that shouldn't be replaced.
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307 # @param elements A sequence object with zero or more elements.
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308 # @exception AssertionError If a sequence member is not a valid object.
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309
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310 def __setslice__(self, start, stop, elements):
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311 for element in elements:
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312 assert iselement(element)
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313 self._children[start:stop] = list(elements)
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314
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315 ##
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316 # Deletes a number of subelements.
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317 #
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318 # @param start The first subelement to delete.
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319 # @param stop The first subelement to leave in there.
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320
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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321 def __delslice__(self, start, stop):
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322 del self._children[start:stop]
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323
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324 ##
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325 # Adds a subelement to the end of this element.
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326 #
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327 # @param element The element to add.
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328 # @exception AssertionError If a sequence member is not a valid object.
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329
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330 def append(self, element):
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331 assert iselement(element)
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332 self._children.append(element)
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333
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334 ##
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335 # Appends subelements from a sequence.
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336 #
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337 # @param elements A sequence object with zero or more elements.
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338 # @exception AssertionError If a subelement is not a valid object.
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339 # @since 1.3
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340
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341 def extend(self, elements):
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342 for element in elements:
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343 assert iselement(element)
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344 self._children.extend(elements)
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345
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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346 ##
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347 # Inserts a subelement at the given position in this element.
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348 #
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349 # @param index Where to insert the new subelement.
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350 # @exception AssertionError If the element is not a valid object.
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351
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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352 def insert(self, index, element):
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353 assert iselement(element)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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354 self._children.insert(index, element)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
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355
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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356 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
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357 # Removes a matching subelement. Unlike the <b>find</b> methods,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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358 # this method compares elements based on identity, not on tag
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Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
359 # value or contents.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
360 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
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361 # @param element What element to remove.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
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362 # @exception ValueError If a matching element could not be found.
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parents:
diff changeset
363 # @exception AssertionError If the element is not a valid object.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
diff changeset
364
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
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365 def remove(self, element):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
diff changeset
366 assert iselement(element)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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367 self._children.remove(element)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
368
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
369 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
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370 # (Deprecated) Returns all subelements. The elements are returned
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
diff changeset
371 # in document order.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
372 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
diff changeset
373 # @return A list of subelements.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
374 # @defreturn list of Element instances
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Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
375
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
diff changeset
376 def getchildren(self):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
diff changeset
377 import warnings
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
378 warnings.warn(
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
379 "This method will be removed in future versions. "
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
diff changeset
380 "Use 'list(elem)' or iteration over elem instead.",
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
diff changeset
381 DeprecationWarning
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
382 )
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
383 return self._children
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
384
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
385 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
386 # Finds the first matching subelement, by tag name or path.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
387 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
diff changeset
388 # @param path What element to look for.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
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389 # @return The first matching element, or None if no element was found.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
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390 # @defreturn Element or None
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parents:
diff changeset
391
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
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parents:
diff changeset
392 def find(self, path):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
393 return ElementPath.find(self, path)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
394
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
395 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
396 # Finds text for the first matching subelement, by tag name or path.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
397 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
398 # @param path What element to look for.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
399 # @param default What to return if the element was not found.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
400 # @return The text content of the first matching element, or the
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
401 # default value no element was found. Note that if the element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
402 # has is found, but has no text content, this method returns an
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
403 # empty string.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
404 # @defreturn string
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
405
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
406 def findtext(self, path, default=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
407 return ElementPath.findtext(self, path, default)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
408
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
409 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
410 # Finds all matching subelements, by tag name or path.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
411 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
412 # @param path What element to look for.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
413 # @return A list or iterator containing all matching elements,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
414 # in document order.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
415 # @defreturn list of Element instances
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
416
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
417 def findall(self, path):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
418 return ElementPath.findall(self, path)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
419
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
420 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
421 # Resets an element. This function removes all subelements, clears
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
422 # all attributes, and sets the text and tail attributes to None.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
423
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
424 def clear(self):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
425 self.attrib.clear()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
426 self._children = []
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
427
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
428 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
429 # Gets an element attribute.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
430 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
431 # @param key What attribute to look for.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
432 # @param default What to return if the attribute was not found.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
433 # @return The attribute value, or the default value, if the
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
434 # attribute was not found.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
435 # @defreturn string or None
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
436
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
437 def get(self, key, default=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
438 return self.attrib.get(key, default)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
439
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
440 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
441 # Sets an element attribute.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
442 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
443 # @param key What attribute to set.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
444 # @param value The attribute value.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
445
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
446 def set(self, key, value):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
447 self.attrib[key] = value
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
448
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
449 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
450 # Gets a list of attribute names. The names are returned in an
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
451 # arbitrary order (just like for an ordinary Python dictionary).
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
452 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
453 # @return A list of element attribute names.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
454 # @defreturn list of strings
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
455
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
456 def keys(self):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
457 return self.attrib.keys()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
458
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
459 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
460 # Gets element attributes, as a sequence. The attributes are
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
461 # returned in an arbitrary order.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
462 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
463 # @return A list of (name, value) tuples for all attributes.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
464 # @defreturn list of (string, string) tuples
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
465
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
466 def items(self):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
467 return self.attrib.items()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
468
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
469 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
470 # Creates a tree iterator. The iterator loops over this element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
471 # and all subelements, in document order, and returns all elements
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
472 # with a matching tag.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
473 # <p>
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
474 # If the tree structure is modified during iteration, new or removed
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
475 # elements may or may not be included. To get a stable set, use the
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
476 # list() function on the iterator, and loop over the resulting list.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
477 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
478 # @param tag What tags to look for (default is to return all elements).
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
479 # @return An iterator containing all the matching elements.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
480 # @defreturn iterator
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
481
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
482 def iter(self, tag=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
483 if tag == "*":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
484 tag = None
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
485 if tag is None or self.tag == tag:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
486 yield self
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
487 for e in self._children:
5
9b72cb3ef3c9 Support strings a children.
Bastian Blank <bblank@thinkmo.de>
parents: 4
diff changeset
488 if isinstance(e, Element):
9b72cb3ef3c9 Support strings a children.
Bastian Blank <bblank@thinkmo.de>
parents: 4
diff changeset
489 for e in e.iter(tag):
9b72cb3ef3c9 Support strings a children.
Bastian Blank <bblank@thinkmo.de>
parents: 4
diff changeset
490 yield e
9b72cb3ef3c9 Support strings a children.
Bastian Blank <bblank@thinkmo.de>
parents: 4
diff changeset
491 # TODO
9b72cb3ef3c9 Support strings a children.
Bastian Blank <bblank@thinkmo.de>
parents: 4
diff changeset
492 elif isinstance(e, Node):
0
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
493 yield e
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
494
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
495 # compatibility (FIXME: preserve list behaviour too? see below)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
496 getiterator = iter
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
497
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
498 # def getiterator(self, tag=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
499 # return list(tag)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
500
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
501 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
502 # Creates a text iterator. The iterator loops over this element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
503 # and all subelements, in document order, and returns all inner
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
504 # text.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
505 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
506 # @return An iterator containing all inner text.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
507 # @defreturn iterator
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
508
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
509 def itertext(self):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
510 for e in self:
9
e0965f86912a Fix text iterator.
Bastian Blank <bblank@thinkmo.de>
parents: 7
diff changeset
511 if isinstance(e, Element):
e0965f86912a Fix text iterator.
Bastian Blank <bblank@thinkmo.de>
parents: 7
diff changeset
512 for s in e.itertext():
e0965f86912a Fix text iterator.
Bastian Blank <bblank@thinkmo.de>
parents: 7
diff changeset
513 yield s
e0965f86912a Fix text iterator.
Bastian Blank <bblank@thinkmo.de>
parents: 7
diff changeset
514 elif isinstance(e, basestring):
e0965f86912a Fix text iterator.
Bastian Blank <bblank@thinkmo.de>
parents: 7
diff changeset
515 yield e
0
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
516
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
517 # compatibility
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
518 _Element = _ElementInterface = Element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
519
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
520 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
521 # Subelement factory. This function creates an element instance, and
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
522 # appends it to an existing element.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
523 # <p>
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
524 # The element name, attribute names, and attribute values can be
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
525 # either 8-bit ASCII strings or Unicode strings.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
526 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
527 # @param parent The parent element.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
528 # @param tag The subelement name.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
529 # @param attrib An optional dictionary, containing element attributes.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
530 # @param **extra Additional attributes, given as keyword arguments.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
531 # @return An element instance.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
532 # @defreturn Element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
533
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
534 def SubElement(parent, tag, attrib={}, **extra):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
535 attrib = attrib.copy()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
536 attrib.update(extra)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
537 element = parent.makeelement(tag, attrib)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
538 parent.append(element)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
539 return element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
540
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
541 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
542 # Comment element factory. This factory function creates a special
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
543 # element that will be serialized as an XML comment by the standard
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
544 # serializer.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
545 # <p>
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
546 # The comment string can be either an 8-bit ASCII string or a Unicode
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
547 # string.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
548 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
549 # @param text A string containing the comment string.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
550 # @return An element instance, representing a comment.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
551 # @defreturn Element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
552
11
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
553 class Comment(Node):
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
554 def __init__(self, text = None):
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
555 self.text = text
0
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
556
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
557 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
558 # PI element factory. This factory function creates a special element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
559 # that will be serialized as an XML processing instruction by the standard
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
560 # serializer.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
561 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
562 # @param target A string containing the PI target.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
563 # @param text A string containing the PI contents, if any.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
564 # @return An element instance, representing a PI.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
565 # @defreturn Element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
566
11
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
567 class ProcessingInstruction(Node):
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
568 def __init__(self, target, text = None):
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
569 self.target, self.text = target, text
0
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
570
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
571 PI = ProcessingInstruction
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
572
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
573 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
574 # QName wrapper. This can be used to wrap a QName attribute value, in
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
575 # order to get proper namespace handling on output.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
576 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
577 # @param text A string containing the QName value, in the form {uri}local,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
578 # or, if the tag argument is given, the URI part of a QName.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
579 # @param tag Optional tag. If given, the first argument is interpreted as
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
580 # an URI, and this argument is interpreted as a local name.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
581 # @return An opaque object, representing the QName.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
582
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
583 class QName(object):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
584 def __init__(self, text_or_uri, tag=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
585 if tag:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
586 text_or_uri = "{%s}%s" % (text_or_uri, tag)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
587 self.text = text_or_uri
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
588 def __str__(self):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
589 return self.text
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
590 def __hash__(self):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
591 return hash(self.text)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
592 def __cmp__(self, other):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
593 if isinstance(other, QName):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
594 return cmp(self.text, other.text)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
595 return cmp(self.text, other)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
596
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
597 # --------------------------------------------------------------------
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
598
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
599 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
600 # ElementTree wrapper class. This class represents an entire element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
601 # hierarchy, and adds some extra support for serialization to and from
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
602 # standard XML.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
603 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
604 # @param element Optional root element.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
605 # @keyparam file Optional file handle or file name. If given, the
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
606 # tree is initialized with the contents of this XML file.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
607
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
608 class ElementTree(object):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
609
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
610 def __init__(self, element=None, file=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
611 assert element is None or iselement(element)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
612 self._root = element # first node
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
613 if file:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
614 self.parse(file)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
615
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
616 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
617 # Gets the root element for this tree.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
618 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
619 # @return An element instance.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
620 # @defreturn Element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
621
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
622 def getroot(self):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
623 return self._root
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
624
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
625 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
626 # Replaces the root element for this tree. This discards the
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
627 # current contents of the tree, and replaces it with the given
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
628 # element. Use with care.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
629 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
630 # @param element An element instance.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
631
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
632 def _setroot(self, element):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
633 assert iselement(element)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
634 self._root = element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
635
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
636 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
637 # Loads an external XML document into this element tree.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
638 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
639 # @param source A file name or file object.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
640 # @keyparam parser An optional parser instance. If not given, the
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
641 # standard {@link XMLParser} parser is used.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
642 # @return The document root element.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
643 # @defreturn Element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
644
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
645 def parse(self, source, parser=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
646 if not hasattr(source, "read"):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
647 source = open(source, "rb")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
648 if not parser:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
649 parser = XMLParser(target=TreeBuilder())
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
650 while 1:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
651 data = source.read(32768)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
652 if not data:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
653 break
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
654 parser.feed(data)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
655 self._root = parser.close()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
656 return self._root
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
657
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
658 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
659 # Creates a tree iterator for the root element. The iterator loops
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
660 # over all elements in this tree, in document order.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
661 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
662 # @param tag What tags to look for (default is to return all elements)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
663 # @return An iterator.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
664 # @defreturn iterator
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
665
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
666 def iter(self, tag=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
667 assert self._root is not None
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
668 return self._root.iter(tag)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
669
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
670 getiterator = iter
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
671
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
672 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
673 # Finds the first toplevel element with given tag.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
674 # Same as getroot().find(path).
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
675 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
676 # @param path What element to look for.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
677 # @return The first matching element, or None if no element was found.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
678 # @defreturn Element or None
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
679
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
680 def find(self, path):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
681 assert self._root is not None
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
682 if path[:1] == "/":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
683 path = "." + path
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
684 import warnings
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
685 warnings.warn(
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
686 "This search is broken in 1.3 and earlier; if you rely "
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
687 "on the current behaviour, change it to %r" % path,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
688 FutureWarning
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
689 )
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
690 return self._root.find(path)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
691
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
692 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
693 # Finds the element text for the first toplevel element with given
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
694 # tag. Same as getroot().findtext(path).
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
695 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
696 # @param path What toplevel element to look for.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
697 # @param default What to return if the element was not found.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
698 # @return The text content of the first matching element, or the
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
699 # default value no element was found. Note that if the element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
700 # has is found, but has no text content, this method returns an
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
701 # empty string.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
702 # @defreturn string
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
703
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
704 def findtext(self, path, default=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
705 assert self._root is not None
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
706 if path[:1] == "/":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
707 path = "." + path
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
708 import warnings
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
709 warnings.warn(
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
710 "This search is broken in 1.3 and earlier; if you rely "
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
711 "on the current behaviour, change it to %r" % path,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
712 FutureWarning
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
713 )
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
714 return self._root.findtext(path, default)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
715
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
716 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
717 # Finds all toplevel elements with the given tag.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
718 # Same as getroot().findall(path).
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
719 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
720 # @param path What element to look for.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
721 # @return A list or iterator containing all matching elements,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
722 # in document order.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
723 # @defreturn list of Element instances
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
724
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
725 def findall(self, path):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
726 assert self._root is not None
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
727 if path[:1] == "/":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
728 path = "." + path
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
729 import warnings
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
730 warnings.warn(
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
731 "This search is broken in 1.3 and earlier; if you rely "
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
732 "on the current behaviour, change it to %r" % path,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
733 FutureWarning
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
734 )
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
735 return self._root.findall(path)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
736
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
737 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
738 # Writes the element tree to a file, as XML.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
739 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
740 # @param file A file name, or a file object opened for writing.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
741 # @keyparam encoding Optional output encoding (default is US-ASCII).
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
742 # @keyparam method Optional output method ("xml" or "html"; default
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
743 # is "xml".
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
744 # @keyparam xml_declaration Controls if an XML declaration should
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
745 # be added to the file. Use False for never, True for always,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
746 # None for only if not US-ASCII or UTF-8. None is default.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
747
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
748 def write(self, file,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
749 # keyword arguments
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
750 encoding="us-ascii",
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
751 xml_declaration=None,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
752 default_namespace=None,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
753 method=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
754 assert self._root is not None
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
755 if not hasattr(file, "write"):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
756 file = open(file, "wb")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
757 write = file.write
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
758 if not method:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
759 method = "xml"
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
760 if not encoding:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
761 encoding = "us-ascii"
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
762 elif xml_declaration or (xml_declaration is None and
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
763 encoding not in ("utf-8", "us-ascii")):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
764 write("<?xml version='1.0' encoding='%s'?>\n" % encoding)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
765 if method == "text":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
766 _serialize_text(write, self._root, encoding)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
767 else:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
768 qnames, namespaces = _namespaces(
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
769 self._root, encoding, default_namespace
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
770 )
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
771 if method == "xml":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
772 _serialize_xml(
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
773 write, self._root, encoding, qnames, namespaces
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
774 )
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
775 elif method == "html":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
776 _serialize_html(
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
777 write, self._root, encoding, qnames, namespaces
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
778 )
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
779 else:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
780 raise ValueError("unknown method %r" % method)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
781
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
782 # --------------------------------------------------------------------
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
783 # serialization support
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
784
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
785 def _namespaces(elem, encoding, default_namespace=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
786 # identify namespaces used in this tree
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
787
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
788 # maps qnames to *encoded* prefix:local names
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
789 qnames = {None: None}
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
790
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
791 # maps uri:s to prefixes
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
792 namespaces = {}
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
793 if default_namespace:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
794 namespaces[default_namespace] = ""
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
795
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
796 def encode(text):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
797 return text.encode(encoding)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
798
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
799 def add_qname(qname):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
800 # calculate serialized qname representation
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
801 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
802 if qname[:1] == "{":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
803 uri, tag = qname[1:].split("}", 1)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
804 prefix = namespaces.get(uri)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
805 if prefix is None:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
806 prefix = _namespace_map.get(uri)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
807 if prefix is None:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
808 prefix = "ns%d" % len(namespaces)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
809 if prefix != "xml":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
810 namespaces[uri] = prefix
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
811 if prefix:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
812 qnames[qname] = encode("%s:%s" % (prefix, tag))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
813 else:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
814 qnames[qname] = encode(tag) # default element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
815 else:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
816 if default_namespace:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
817 # FIXME: can this be handled in XML 1.0?
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
818 raise ValueError(
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
819 "cannot use non-qualified names with "
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
820 "default_namespace option"
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
821 )
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
822 qnames[qname] = encode(qname)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
823 except TypeError:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
824 _raise_serialization_error(qname)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
825
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
826 # populate qname and namespaces table
11
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
827 if isinstance(elem, Element):
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
828 for elem in elem.iter():
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
829 tag = elem.tag
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
830 if isinstance(tag, QName) and tag.text not in qnames:
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
831 add_qname(tag.text)
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
832 elif isinstance(tag, basestring):
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
833 if tag not in qnames:
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
834 add_qname(tag)
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
835 elif tag is not None and tag is not Comment and tag is not PI:
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
836 _raise_serialization_error(tag)
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
837 for key, value in elem.items():
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
838 if isinstance(key, QName):
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
839 key = key.text
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
840 if key not in qnames:
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
841 add_qname(key)
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
842 if isinstance(value, QName) and value.text not in qnames:
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
843 add_qname(value.text)
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
844 text = elem.text
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
845 if isinstance(text, QName) and text.text not in qnames:
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
846 add_qname(text.text)
0
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
847 return qnames, namespaces
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
848
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
849 def _serialize_xml(write, elem, encoding, qnames, namespaces):
11
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
850 if isinstance(elem, Comment):
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
851 write("<!--%s-->" % _escape_cdata(elem.text, encoding))
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
852 elif isinstance(elem, ProcessingInstruction):
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
853 text = _escape_cdata(elem.target, encoding)
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
854 if elem.text is not None:
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
855 text += ' ' + _escape_cdata(elem.text, encoding)
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
856 write("<?%s?>" % text)
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
857 elif isinstance(elem, Element):
ec93cdb38b9e Convert Comment and ProcessingInstruction to classes.
Bastian Blank <bblank@thinkmo.de>
parents: 9
diff changeset
858 tag = qnames[elem.tag]
0
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
859 if tag is None:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
860 for e in elem:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
861 _serialize_xml(write, e, encoding, qnames, None)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
862 else:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
863 write("<" + tag)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
864 items = elem.items()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
865 if items or namespaces:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
866 items.sort() # lexical order
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
867 for k, v in items:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
868 if isinstance(k, QName):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
869 k = k.text
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
870 if isinstance(v, QName):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
871 v = qnames[v.text]
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
872 else:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
873 v = _escape_attrib(v, encoding)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
874 write(" %s=\"%s\"" % (qnames[k], v))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
875 if namespaces:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
876 items = namespaces.items()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
877 items.sort(key=lambda x: x[1]) # sort on prefix
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
878 for v, k in items:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
879 if k:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
880 k = ":" + k
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
881 write(" xmlns%s=\"%s\"" % (
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
882 k.encode(encoding),
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
883 _escape_attrib(v, encoding)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
884 ))
7
a30d65781076 Make parser add text as strings.
Bastian Blank <bblank@thinkmo.de>
parents: 5
diff changeset
885 if len(elem):
0
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
886 write(">")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
887 for e in elem:
12
1eb02b658530 Simplify serializer.
Bastian Blank <bblank@thinkmo.de>
parents: 11
diff changeset
888 _serialize_xml(write, e, encoding, qnames, None)
0
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
889 write("</" + tag + ">")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
890 else:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
891 write(" />")
12
1eb02b658530 Simplify serializer.
Bastian Blank <bblank@thinkmo.de>
parents: 11
diff changeset
892 else:
1eb02b658530 Simplify serializer.
Bastian Blank <bblank@thinkmo.de>
parents: 11
diff changeset
893 write(_escape_cdata(unicode(elem), encoding))
0
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
894
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
895 HTML_EMPTY = ("area", "base", "basefont", "br", "col", "frame", "hr",
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
896 "img", "input", "isindex", "link", "meta" "param")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
897
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
898 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
899 HTML_EMPTY = set(HTML_EMPTY)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
900 except NameError:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
901 pass
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
902
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
903 def _serialize_html(write, elem, encoding, qnames, namespaces):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
904 tag = elem.tag
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
905 text = elem.text
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
906 if tag is Comment:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
907 write("<!--%s-->" % _escape_cdata(text, encoding))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
908 elif tag is ProcessingInstruction:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
909 write("<?%s?>" % _escape_cdata(text, encoding))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
910 else:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
911 tag = qnames[tag]
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
912 if tag is None:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
913 if text:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
914 write(_escape_cdata(text, encoding))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
915 for e in elem:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
916 _serialize_html(write, e, encoding, qnames, None)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
917 else:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
918 write("<" + tag)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
919 items = elem.items()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
920 if items or namespaces:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
921 items.sort() # lexical order
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
922 for k, v in items:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
923 if isinstance(k, QName):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
924 k = k.text
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
925 if isinstance(v, QName):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
926 v = qnames[v.text]
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
927 else:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
928 v = _escape_attrib_html(v, encoding)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
929 # FIXME: handle boolean attributes
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
930 write(" %s=\"%s\"" % (qnames[k], v))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
931 if namespaces:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
932 items = namespaces.items()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
933 items.sort(key=lambda x: x[1]) # sort on prefix
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
934 for v, k in items:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
935 if k:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
936 k = ":" + k
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
937 write(" xmlns%s=\"%s\"" % (
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
938 k.encode(encoding),
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
939 _escape_attrib(v, encoding)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
940 ))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
941 write(">")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
942 tag = tag.lower()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
943 if text:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
944 if tag == "script" or tag == "style":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
945 write(_encode(text, encoding))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
946 else:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
947 write(_escape_cdata(text, encoding))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
948 for e in elem:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
949 _serialize_html(write, e, encoding, qnames, None)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
950 if tag not in HTML_EMPTY:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
951 write("</" + tag + ">")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
952 if elem.tail:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
953 write(_escape_cdata(elem.tail, encoding))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
954
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
955 def _serialize_text(write, elem, encoding):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
956 for part in elem.itertext():
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
957 write(part.encode(encoding))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
958 if elem.tail:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
959 write(elem.tail.encode(encoding))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
960
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
961 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
962 # Registers a namespace prefix. The registry is global, and any
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
963 # existing mapping for either the given prefix or the namespace URI
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
964 # will be removed.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
965 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
966 # @param prefix Namespace prefix.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
967 # @param uri Namespace uri. Tags and attributes in this namespace
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
968 # will be serialized with the given prefix, if at all possible.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
969 # @raise ValueError If the prefix is reserved, or is otherwise
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
970 # invalid.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
971
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
972 def register_namespace(prefix, uri):
13
99619772e57c Move imports.
Bastian Blank <bblank@thinkmo.de>
parents: 12
diff changeset
973 import re
0
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
974 if re.match("ns\d+$", prefix):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
975 raise ValueError("Prefix format reserved for internal use")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
976 for k, v in _namespace_map.items():
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
977 if k == uri or v == prefix:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
978 del _namespace_map[k]
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
979 _namespace_map[uri] = prefix
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
980
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
981 _namespace_map = {
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
982 # "well-known" namespace prefixes
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
983 "http://www.w3.org/XML/1998/namespace": "xml",
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
984 "http://www.w3.org/1999/xhtml": "html",
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
985 "http://www.w3.org/1999/02/22-rdf-syntax-ns#": "rdf",
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
986 "http://schemas.xmlsoap.org/wsdl/": "wsdl",
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
987 # xml schema
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
988 "http://www.w3.org/2001/XMLSchema": "xs",
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
989 "http://www.w3.org/2001/XMLSchema-instance": "xsi",
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
990 # dublic core
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
991 "http://purl.org/dc/elements/1.1/": "dc",
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
992 }
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
993
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
994 def _raise_serialization_error(text):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
995 raise TypeError(
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
996 "cannot serialize %r (type %s)" % (text, type(text).__name__)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
997 )
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
998
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
999 def _encode(text, encoding):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1000 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1001 return text.encode(encoding, "xmlcharrefreplace")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1002 except (TypeError, AttributeError):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1003 _raise_serialization_error(text)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1004
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1005 def _escape_cdata(text, encoding):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1006 # escape character data
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1007 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1008 # it's worth avoiding do-nothing calls for strings that are
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1009 # shorter than 500 character, or so. assume that's, by far,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1010 # the most common case in most applications.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1011 if "&" in text:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1012 text = text.replace("&", "&amp;")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1013 if "<" in text:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1014 text = text.replace("<", "&lt;")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1015 if ">" in text:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1016 text = text.replace(">", "&gt;")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1017 return text.encode(encoding, "xmlcharrefreplace")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1018 except (TypeError, AttributeError):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1019 _raise_serialization_error(text)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1020
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1021 def _escape_attrib(text, encoding):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1022 # escape attribute value
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1023 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1024 if "&" in text:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1025 text = text.replace("&", "&amp;")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1026 if "<" in text:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1027 text = text.replace("<", "&lt;")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1028 if ">" in text:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1029 text = text.replace(">", "&gt;")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1030 if "\"" in text:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1031 text = text.replace("\"", "&quot;")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1032 if "\n" in text:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1033 text = text.replace("\n", "&#10;")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1034 return text.encode(encoding, "xmlcharrefreplace")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1035 except (TypeError, AttributeError):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1036 _raise_serialization_error(text)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1037
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1038 def _escape_attrib_html(text, encoding):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1039 # escape attribute value
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1040 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1041 if "&" in text:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1042 text = text.replace("&", "&amp;")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1043 if ">" in text:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1044 text = text.replace(">", "&gt;")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1045 if "\"" in text:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1046 text = text.replace("\"", "&quot;")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1047 return text.encode(encoding, "xmlcharrefreplace")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1048 except (TypeError, AttributeError):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1049 _raise_serialization_error(text)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1050
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1051 # --------------------------------------------------------------------
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1052
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1053 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1054 # Generates a string representation of an XML element, including all
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1055 # subelements.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1056 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1057 # @param element An Element instance.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1058 # @return An encoded string containing the XML data.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1059 # @defreturn string
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1060
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1061 def tostring(element, encoding=None, method=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1062 class dummy:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1063 pass
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1064 data = []
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1065 file = dummy()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1066 file.write = data.append
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1067 ElementTree(element).write(file, encoding, method=method)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1068 return "".join(data)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1069
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1070 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1071 # Generates a string representation of an XML element, including all
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1072 # subelements. The string is returned as a sequence of string fragments.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1073 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1074 # @param element An Element instance.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1075 # @return A sequence object containing the XML data.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1076 # @defreturn sequence
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1077 # @since 1.3
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1078
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1079 def tostringlist(element, encoding=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1080 class dummy:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1081 pass
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1082 data = []
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1083 file = dummy()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1084 file.write = data.append
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1085 ElementTree(element).write(file, encoding)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1086 # FIXME: merge small fragments into larger parts
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1087 return data
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1088
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1089 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1090 # Writes an element tree or element structure to sys.stdout. This
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1091 # function should be used for debugging only.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1092 # <p>
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1093 # The exact output format is implementation dependent. In this
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1094 # version, it's written as an ordinary XML file.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1095 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1096 # @param elem An element tree or an individual element.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1097
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1098 def dump(elem):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1099 # debugging
13
99619772e57c Move imports.
Bastian Blank <bblank@thinkmo.de>
parents: 12
diff changeset
1100 import sys
0
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1101 if not isinstance(elem, ElementTree):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1102 elem = ElementTree(elem)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1103 elem.write(sys.stdout)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1104 tail = elem.getroot().tail
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1105 if not tail or tail[-1] != "\n":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1106 sys.stdout.write("\n")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1107
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1108 # --------------------------------------------------------------------
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1109 # parsing
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1110
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1111 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1112 # Parses an XML document into an element tree.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1113 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1114 # @param source A filename or file object containing XML data.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1115 # @param parser An optional parser instance. If not given, the
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1116 # standard {@link XMLParser} parser is used.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1117 # @return An ElementTree instance
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1118
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1119 def parse(source, parser=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1120 tree = ElementTree()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1121 tree.parse(source, parser)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1122 return tree
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1123
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1124 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1125 # Parses an XML document into an element tree incrementally, and reports
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1126 # what's going on to the user.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1127 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1128 # @param source A filename or file object containing XML data.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1129 # @param events A list of events to report back. If omitted, only "end"
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1130 # events are reported.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1131 # @param parser An optional parser instance. If not given, the
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1132 # standard {@link XMLParser} parser is used.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1133 # @return A (event, elem) iterator.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1134
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1135 def iterparse(source, events=None, parser=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1136 if not hasattr(source, "read"):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1137 source = open(source, "rb")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1138 if not parser:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1139 parser = XMLParser(target=TreeBuilder())
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1140 return _IterParseIterator(source, events, parser)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1141
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1142 class _IterParseIterator(object):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1143
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1144 def __init__(self, source, events, parser):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1145 self._file = source
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1146 self._events = []
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1147 self._index = 0
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1148 self.root = self._root = None
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1149 self._parser = parser
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1150 # wire up the parser for event reporting
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1151 parser = self._parser._parser
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1152 append = self._events.append
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1153 if events is None:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1154 events = ["end"]
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1155 for event in events:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1156 if event == "start":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1157 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1158 parser.ordered_attributes = 1
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1159 parser.specified_attributes = 1
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1160 def handler(tag, attrib_in, event=event, append=append,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1161 start=self._parser._start_list):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1162 append((event, start(tag, attrib_in)))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1163 parser.StartElementHandler = handler
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1164 except AttributeError:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1165 def handler(tag, attrib_in, event=event, append=append,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1166 start=self._parser._start):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1167 append((event, start(tag, attrib_in)))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1168 parser.StartElementHandler = handler
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1169 elif event == "end":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1170 def handler(tag, event=event, append=append,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1171 end=self._parser._end):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1172 append((event, end(tag)))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1173 parser.EndElementHandler = handler
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1174 elif event == "start-ns":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1175 def handler(prefix, uri, event=event, append=append):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1176 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1177 uri = uri.encode("ascii")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1178 except UnicodeError:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1179 pass
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1180 append((event, (prefix or "", uri)))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1181 parser.StartNamespaceDeclHandler = handler
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1182 elif event == "end-ns":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1183 def handler(prefix, event=event, append=append):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1184 append((event, None))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1185 parser.EndNamespaceDeclHandler = handler
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1186
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1187 def next(self):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1188 while 1:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1189 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1190 item = self._events[self._index]
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1191 except IndexError:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1192 if self._parser is None:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1193 self.root = self._root
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1194 raise StopIteration
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1195 # load event buffer
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1196 del self._events[:]
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1197 self._index = 0
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1198 data = self._file.read(16384)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1199 if data:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1200 self._parser.feed(data)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1201 else:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1202 self._root = self._parser.close()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1203 self._parser = None
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1204 else:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1205 self._index = self._index + 1
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1206 return item
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1207
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1208 def __iter__(self):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1209 return self
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1210
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1211 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1212 # Parses an XML document from a string constant. This function can
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1213 # be used to embed "XML literals" in Python code.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1214 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1215 # @param source A string containing XML data.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1216 # @param parser An optional parser instance. If not given, the
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1217 # standard {@link XMLParser} parser is used.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1218 # @return An Element instance.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1219 # @defreturn Element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1220
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1221 def XML(text, parser=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1222 if not parser:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1223 parser = XMLParser(target=TreeBuilder())
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1224 parser.feed(text)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1225 return parser.close()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1226
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1227 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1228 # Parses an XML document from a string constant, and also returns
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1229 # a dictionary which maps from element id:s to elements.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1230 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1231 # @param source A string containing XML data.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1232 # @param parser An optional parser instance. If not given, the
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1233 # standard {@link XMLParser} parser is used.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1234 # @return A tuple containing an Element instance and a dictionary.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1235 # @defreturn (Element, dictionary)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1236
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1237 def XMLID(text, parser=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1238 if not parser:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1239 parser = XMLParser(target=TreeBuilder())
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1240 parser.feed(text)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1241 tree = parser.close()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1242 ids = {}
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1243 for elem in tree.getiterator():
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1244 id = elem.get("id")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1245 if id:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1246 ids[id] = elem
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1247 return tree, ids
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1248
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1249 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1250 # Parses an XML document from a string constant. Same as {@link #XML}.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1251 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1252 # @def fromstring(text)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1253 # @param source A string containing XML data.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1254 # @return An Element instance.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1255 # @defreturn Element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1256
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1257 fromstring = XML
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1258
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1259 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1260 # Parses an XML document from a sequence of string fragments.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1261 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1262 # @param sequence A list or other sequence containing XML data fragments.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1263 # @param parser An optional parser instance. If not given, the
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1264 # standard {@link XMLParser} parser is used.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1265 # @return An Element instance.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1266 # @defreturn Element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1267 # @since 1.3
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1268
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1269 def fromstringlist(sequence, parser=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1270 if not parser:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1271 parser = XMLParser(target=TreeBuilder())
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1272 for text in sequence:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1273 parser.feed(text)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1274 return parser.close()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1275
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1276 # --------------------------------------------------------------------
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1277
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1278 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1279 # Generic element structure builder. This builder converts a sequence
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1280 # of {@link #TreeBuilder.start}, {@link #TreeBuilder.data}, and {@link
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1281 # #TreeBuilder.end} method calls to a well-formed element structure.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1282 # <p>
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1283 # You can use this class to build an element structure using a custom XML
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1284 # parser, or a parser for some other XML-like format.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1285 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1286 # @param element_factory Optional element factory. This factory
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1287 # is called to create new Element instances, as necessary.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1288
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1289 class TreeBuilder(object):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1290
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1291 def __init__(self, element_factory=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1292 self._data = [] # data collector
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1293 self._elem = [] # element stack
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1294 self._last = None # last element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1295 if element_factory is None:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1296 element_factory = Element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1297 self._factory = element_factory
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1298
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1299 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1300 # Flushes the builder buffers, and returns the toplevel document
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1301 # element.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1302 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1303 # @return An Element instance.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1304 # @defreturn Element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1305
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1306 def close(self):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1307 assert len(self._elem) == 0, "missing end tags"
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1308 assert self._last != None, "missing toplevel element"
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1309 return self._last
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1310
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1311 def _flush(self):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1312 if self._data:
7
a30d65781076 Make parser add text as strings.
Bastian Blank <bblank@thinkmo.de>
parents: 5
diff changeset
1313 text = "".join(self._data)
a30d65781076 Make parser add text as strings.
Bastian Blank <bblank@thinkmo.de>
parents: 5
diff changeset
1314 self._elem[-1].append(text)
0
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1315 self._data = []
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1316
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1317 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1318 # Adds text to the current element.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1319 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1320 # @param data A string. This should be either an 8-bit string
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1321 # containing ASCII text, or a Unicode string.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1322
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1323 def data(self, data):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1324 self._data.append(data)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1325
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1326 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1327 # Opens a new element.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1328 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1329 # @param tag The element name.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1330 # @param attrib A dictionary containing element attributes.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1331 # @return The opened element.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1332 # @defreturn Element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1333
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1334 def start(self, tag, attrs):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1335 self._flush()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1336 self._last = elem = self._factory(tag, attrs)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1337 if self._elem:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1338 self._elem[-1].append(elem)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1339 self._elem.append(elem)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1340 return elem
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1341
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1342 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1343 # Closes the current element.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1344 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1345 # @param tag The element name.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1346 # @return The closed element.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1347 # @defreturn Element
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1348
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1349 def end(self, tag):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1350 self._flush()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1351 self._last = self._elem.pop()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1352 assert self._last.tag == tag,\
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1353 "end tag mismatch (expected %s, got %s)" % (
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1354 self._last.tag, tag)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1355 return self._last
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1356
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1357 ##
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1358 # Element structure builder for XML source data, based on the
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1359 # <b>expat</b> parser.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1360 #
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1361 # @keyparam target Target object. If omitted, the builder uses an
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1362 # instance of the standard {@link #TreeBuilder} class.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1363 # @keyparam html Predefine HTML entities. This flag is not supported
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1364 # by the current implementation.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1365 # @keyparam encoding Optional encoding. If given, the value overrides
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1366 # the encoding specified in the XML file.
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1367 # @see #ElementTree
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1368 # @see #TreeBuilder
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1369
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1370 class XMLParser(object):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1371
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1372 def __init__(self, html=0, target=None, encoding=None):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1373 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1374 from xml.parsers import expat
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1375 except ImportError:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1376 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1377 import pyexpat; expat = pyexpat
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1378 except ImportError:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1379 raise ImportError(
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1380 "No module named expat; use SimpleXMLTreeBuilder instead"
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1381 )
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1382 parser = expat.ParserCreate(encoding, "}")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1383 if target is None:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1384 target = TreeBuilder()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1385 # underscored names are provided for compatibility only
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1386 self.parser = self._parser = parser
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1387 self.target = self._target = target
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1388 self._error = expat.error
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1389 self._names = {} # name memo cache
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1390 # callbacks
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1391 parser.DefaultHandlerExpand = self._default
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1392 parser.StartElementHandler = self._start
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1393 parser.EndElementHandler = self._end
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1394 parser.CharacterDataHandler = self._data
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1395 # let expat do the buffering, if supported
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1396 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1397 self._parser.buffer_text = 1
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1398 except AttributeError:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1399 pass
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1400 # use new-style attribute handling, if supported
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1401 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1402 self._parser.ordered_attributes = 1
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1403 self._parser.specified_attributes = 1
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1404 parser.StartElementHandler = self._start_list
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1405 except AttributeError:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1406 pass
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1407 self._doctype = None
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1408 self.entity = {}
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1409 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1410 self.version = "Expat %d.%d.%d" % expat.version_info
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1411 except AttributeError:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1412 pass # unknown
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1413
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1414 def _raiseerror(self, value):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1415 err = ParseError(value)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1416 err.code = value.code
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1417 err.position = value.lineno, value.offset
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1418 raise err
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1419
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1420 def _fixtext(self, text):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1421 # convert text string to ascii, if possible
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1422 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1423 return text.encode("ascii")
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1424 except UnicodeError:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1425 return text
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1426
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1427 def _fixname(self, key):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1428 # expand qname, and convert name string to ascii, if possible
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1429 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1430 name = self._names[key]
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1431 except KeyError:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1432 name = key
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1433 if "}" in name:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1434 name = "{" + name
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1435 self._names[key] = name = self._fixtext(name)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1436 return name
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1437
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1438 def _start(self, tag, attrib_in):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1439 fixname = self._fixname
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1440 fixtext = self._fixtext
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1441 tag = fixname(tag)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1442 attrib = {}
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1443 for key, value in attrib_in.items():
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1444 attrib[fixname(key)] = fixtext(value)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1445 return self.target.start(tag, attrib)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1446
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1447 def _start_list(self, tag, attrib_in):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1448 fixname = self._fixname
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1449 fixtext = self._fixtext
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1450 tag = fixname(tag)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1451 attrib = {}
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1452 if attrib_in:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1453 for i in range(0, len(attrib_in), 2):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1454 attrib[fixname(attrib_in[i])] = fixtext(attrib_in[i+1])
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1455 return self.target.start(tag, attrib)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1456
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1457 def _data(self, text):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1458 return self.target.data(self._fixtext(text))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1459
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1460 def _end(self, tag):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1461 return self.target.end(self._fixname(tag))
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1462
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1463 def _default(self, text):
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1464 prefix = text[:1]
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1465 if prefix == "&":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1466 # deal with undefined entities
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1467 try:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1468 self.target.data(self.entity[text[1:-1]])
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1469 except KeyError:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1470 from xml.parsers import expat
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1471 err = expat.error(
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1472 "undefined entity %s: line %d, column %d" %
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1473 (text, self._parser.ErrorLineNumber,
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1474 self._parser.ErrorColumnNumber)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1475 )
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1476 err.code = 11 # XML_ERROR_UNDEFINED_ENTITY
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1477 err.lineno = self._parser.ErrorLineNumber
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1478 err.offset = self._parser.ErrorColumnNumber
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1479 raise err
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1480 elif prefix == "<" and text[:9] == "<!DOCTYPE":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1481 self._doctype = [] # inside a doctype declaration
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1482 elif self._doctype is not None:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1483 # parse doctype contents
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1484 if prefix == ">":
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1485 self._doctype = None
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1486 return
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1487 text = text.strip()
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1488 if not text:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1489 return
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1490 self._doctype.append(text)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1491 n = len(self._doctype)
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1492 if n > 2:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1493 type = self._doctype[1]
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1494 if type == "PUBLIC" and n == 4:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1495 name, type, pubid, system = self._doctype
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1496 elif type == "SYSTEM" and n == 3:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1497 name, type, system = self._doctype
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1498 pubid = None
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1499 else:
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset
1500 return
5169fce2d144 Import ElementTree (1.3a3-20070912-preview).
Bastian Blank <bblank@thinkmo.de>
parents:
diff changeset