def __init__(self):
et.TreeBuilder.__init__(self)
self.root_element = None
self.root_element_closed = False
python类TreeBuilder()的实例源码
def start(self, tag, attrs):
element = et.TreeBuilder.start(self, tag, attrs)
if self.root_element is None:
self.root_element = element
return element
def end(self, tag):
element = et.TreeBuilder.end(self, tag)
if self.root_element is element:
self.root_element_closed = True
return element
def parsefile():
"""
Test parsing from file.
>>> tree = ET.parse(SIMPLE_XMLFILE)
>>> normalize_crlf(tree)
>>> tree.write(sys.stdout, encoding='unicode')
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> tree = ET.parse(SIMPLE_NS_XMLFILE)
>>> normalize_crlf(tree)
>>> tree.write(sys.stdout, encoding='unicode')
<ns0:root xmlns:ns0="namespace">
<ns0:element key="value">text</ns0:element>
<ns0:element>text</ns0:element>tail
<ns0:empty-element />
</ns0:root>
>>> with open(SIMPLE_XMLFILE) as f:
... data = f.read()
>>> parser = ET.XMLParser()
>>> parser.version # doctest: +ELLIPSIS
'Expat ...'
>>> parser.feed(data)
>>> print(serialize(parser.close()))
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> parser = ET.XMLTreeBuilder() # 1.2 compatibility
>>> parser.feed(data)
>>> print(serialize(parser.close()))
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> target = ET.TreeBuilder()
>>> parser = ET.XMLParser(target=target)
>>> parser.feed(data)
>>> print(serialize(parser.close()))
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
"""
def parsefile():
"""
Test parsing from file.
>>> tree = ET.parse(SIMPLE_XMLFILE)
>>> normalize_crlf(tree)
>>> tree.write(sys.stdout)
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> tree = ET.parse(SIMPLE_NS_XMLFILE)
>>> normalize_crlf(tree)
>>> tree.write(sys.stdout)
<ns0:root xmlns:ns0="namespace">
<ns0:element key="value">text</ns0:element>
<ns0:element>text</ns0:element>tail
<ns0:empty-element />
</ns0:root>
>>> with open(SIMPLE_XMLFILE) as f:
... data = f.read()
>>> parser = ET.XMLParser()
>>> parser.version # doctest: +ELLIPSIS
'Expat ...'
>>> parser.feed(data)
>>> print serialize(parser.close())
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> parser = ET.XMLTreeBuilder() # 1.2 compatibility
>>> parser.feed(data)
>>> print serialize(parser.close())
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> target = ET.TreeBuilder()
>>> parser = ET.XMLParser(target=target)
>>> parser.feed(data)
>>> print serialize(parser.close())
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
"""
def parsefile():
"""
Test parsing from file.
>>> tree = ET.parse(SIMPLE_XMLFILE)
>>> normalize_crlf(tree)
>>> tree.write(sys.stdout)
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> tree = ET.parse(SIMPLE_NS_XMLFILE)
>>> normalize_crlf(tree)
>>> tree.write(sys.stdout)
<ns0:root xmlns:ns0="namespace">
<ns0:element key="value">text</ns0:element>
<ns0:element>text</ns0:element>tail
<ns0:empty-element />
</ns0:root>
>>> with open(SIMPLE_XMLFILE) as f:
... data = f.read()
>>> parser = ET.XMLParser()
>>> parser.version # doctest: +ELLIPSIS
'Expat ...'
>>> parser.feed(data)
>>> print serialize(parser.close())
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> parser = ET.XMLTreeBuilder() # 1.2 compatibility
>>> parser.feed(data)
>>> print serialize(parser.close())
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> target = ET.TreeBuilder()
>>> parser = ET.XMLParser(target=target)
>>> parser.feed(data)
>>> print serialize(parser.close())
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
"""
def parsefile():
"""
Test parsing from file.
>>> tree = ET.parse(SIMPLE_XMLFILE)
>>> normalize_crlf(tree)
>>> tree.write(sys.stdout)
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> tree = ET.parse(SIMPLE_NS_XMLFILE)
>>> normalize_crlf(tree)
>>> tree.write(sys.stdout)
<ns0:root xmlns:ns0="namespace">
<ns0:element key="value">text</ns0:element>
<ns0:element>text</ns0:element>tail
<ns0:empty-element />
</ns0:root>
>>> with open(SIMPLE_XMLFILE) as f:
... data = f.read()
>>> parser = ET.XMLParser()
>>> parser.version # doctest: +ELLIPSIS
'Expat ...'
>>> parser.feed(data)
>>> print serialize(parser.close())
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> parser = ET.XMLTreeBuilder() # 1.2 compatibility
>>> parser.feed(data)
>>> print serialize(parser.close())
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> target = ET.TreeBuilder()
>>> parser = ET.XMLParser(target=target)
>>> parser.feed(data)
>>> print serialize(parser.close())
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
"""
def parsefile():
"""
Test parsing from file.
>>> tree = ET.parse(SIMPLE_XMLFILE)
>>> normalize_crlf(tree)
>>> tree.write(sys.stdout)
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> tree = ET.parse(SIMPLE_NS_XMLFILE)
>>> normalize_crlf(tree)
>>> tree.write(sys.stdout)
<ns0:root xmlns:ns0="namespace">
<ns0:element key="value">text</ns0:element>
<ns0:element>text</ns0:element>tail
<ns0:empty-element />
</ns0:root>
>>> with open(SIMPLE_XMLFILE) as f:
... data = f.read()
>>> parser = ET.XMLParser()
>>> parser.version # doctest: +ELLIPSIS
'Expat ...'
>>> parser.feed(data)
>>> print serialize(parser.close())
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> parser = ET.XMLTreeBuilder() # 1.2 compatibility
>>> parser.feed(data)
>>> print serialize(parser.close())
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
>>> target = ET.TreeBuilder()
>>> parser = ET.XMLParser(target=target)
>>> parser.feed(data)
>>> print serialize(parser.close())
<root>
<element key="value">text</element>
<element>text</element>tail
<empty-element />
</root>
"""
