def PullDOMAdapter(node):
from xml.dom import Node
from xml.dom.pulldom import START_ELEMENT, END_ELEMENT, COMMENT, CHARACTERS
if node.nodeType in (Node.DOCUMENT_NODE, Node.DOCUMENT_FRAGMENT_NODE):
for childNode in node.childNodes:
for event in PullDOMAdapter(childNode):
yield event
elif node.nodeType == Node.DOCUMENT_TYPE_NODE:
raise NotImplementedError("DOCTYPE nodes are not supported by PullDOM")
elif node.nodeType == Node.COMMENT_NODE:
yield COMMENT, node
elif node.nodeType in (Node.TEXT_NODE, Node.CDATA_SECTION_NODE):
yield CHARACTERS, node
elif node.nodeType == Node.ELEMENT_NODE:
yield START_ELEMENT, node
for childNode in node.childNodes:
for event in PullDOMAdapter(childNode):
yield event
yield END_ELEMENT, node
else:
raise NotImplementedError("Node type not supported: " + str(node.nodeType))
python类END_ELEMENT的实例源码
def test_end_document(self):
"""PullDOM does not receive "end-document" events."""
items = pulldom.parseString(SMALL_SAMPLE)
# Read all of the nodes up to and including </html>:
for evt, node in items:
if evt == pulldom.END_ELEMENT and node.tagName == "html":
break
try:
# Assert that the next node is END_DOCUMENT:
evt, node = next(items)
self.assertEqual(pulldom.END_DOCUMENT, evt)
except StopIteration:
self.fail(
"Ran out of events, but should have received END_DOCUMENT")
def test_end_document(self):
"""PullDOM does not receive "end-document" events."""
items = pulldom.parseString(SMALL_SAMPLE)
# Read all of the nodes up to and including </html>:
for evt, node in items:
if evt == pulldom.END_ELEMENT and node.tagName == "html":
break
try:
# Assert that the next node is END_DOCUMENT:
evt, node = next(items)
self.assertEqual(pulldom.END_DOCUMENT, evt)
except StopIteration:
self.fail(
"Ran out of events, but should have received END_DOCUMENT")
def test_end_document(self):
"""PullDOM does not receive "end-document" events."""
items = pulldom.parseString(SMALL_SAMPLE)
# Read all of the nodes up to and including </html>:
for evt, node in items:
if evt == pulldom.END_ELEMENT and node.tagName == "html":
break
try:
# Assert that the next node is END_DOCUMENT:
evt, node = next(items)
self.assertEqual(pulldom.END_DOCUMENT, evt)
except StopIteration:
self.fail(
"Ran out of events, but should have received END_DOCUMENT")
def test_parse_semantics(self):
"""Test DOMEventStream parsing semantics."""
items = pulldom.parseString(SMALL_SAMPLE)
evt, node = next(items)
# Just check the node is a Document:
self.assertTrue(hasattr(node, "createElement"))
self.assertEqual(pulldom.START_DOCUMENT, evt)
evt, node = next(items)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("html", node.tagName)
self.assertEqual(2, len(node.attributes))
self.assertEqual(node.attributes.getNamedItem("xmlns:xdc").value,
"http://www.xml.com/books")
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt) # Line break
evt, node = next(items)
# XXX - A comment should be reported here!
# self.assertEqual(pulldom.COMMENT, evt)
# Line break after swallowed comment:
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual("title", node.tagName)
title_node = node
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
self.assertEqual("Introduction to XSL", node.data)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("title", node.tagName)
self.assertTrue(title_node is node)
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("hr", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("hr", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("p", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("xdc:author", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("xdc:author", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
# XXX No END_DOCUMENT item is ever obtained:
#evt, node = next(items)
#self.assertEqual(pulldom.END_DOCUMENT, evt)
def _test_thorough(self, pd, before_root=True):
"""Test some of the hard-to-reach parts of the parser, using a mock
parser."""
evt, node = next(pd)
self.assertEqual(pulldom.START_DOCUMENT, evt)
# Just check the node is a Document:
self.assertTrue(hasattr(node, "createElement"))
if before_root:
evt, node = next(pd)
self.assertEqual(pulldom.COMMENT, evt)
self.assertEqual("a comment", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.PROCESSING_INSTRUCTION, evt)
self.assertEqual("target", node.target)
self.assertEqual("data", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("html", node.tagName)
evt, node = next(pd)
self.assertEqual(pulldom.COMMENT, evt)
self.assertEqual("a comment", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.PROCESSING_INSTRUCTION, evt)
self.assertEqual("target", node.target)
self.assertEqual("data", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("p", node.tagName)
evt, node = next(pd)
self.assertEqual(pulldom.CHARACTERS, evt)
self.assertEqual("text", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("p", node.tagName)
evt, node = next(pd)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("html", node.tagName)
evt, node = next(pd)
self.assertEqual(pulldom.END_DOCUMENT, evt)
def test_parse_semantics(self):
"""Test DOMEventStream parsing semantics."""
items = pulldom.parseString(SMALL_SAMPLE)
evt, node = next(items)
# Just check the node is a Document:
self.assertTrue(hasattr(node, "createElement"))
self.assertEqual(pulldom.START_DOCUMENT, evt)
evt, node = next(items)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("html", node.tagName)
self.assertEqual(2, len(node.attributes))
self.assertEqual(node.attributes.getNamedItem("xmlns:xdc").value,
"http://www.xml.com/books")
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt) # Line break
evt, node = next(items)
# XXX - A comment should be reported here!
# self.assertEqual(pulldom.COMMENT, evt)
# Line break after swallowed comment:
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual("title", node.tagName)
title_node = node
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
self.assertEqual("Introduction to XSL", node.data)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("title", node.tagName)
self.assertTrue(title_node is node)
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("hr", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("hr", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("p", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("xdc:author", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("xdc:author", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
# XXX No END_DOCUMENT item is ever obtained:
#evt, node = next(items)
#self.assertEqual(pulldom.END_DOCUMENT, evt)
def _test_thorough(self, pd, before_root=True):
"""Test some of the hard-to-reach parts of the parser, using a mock
parser."""
evt, node = next(pd)
self.assertEqual(pulldom.START_DOCUMENT, evt)
# Just check the node is a Document:
self.assertTrue(hasattr(node, "createElement"))
if before_root:
evt, node = next(pd)
self.assertEqual(pulldom.COMMENT, evt)
self.assertEqual("a comment", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.PROCESSING_INSTRUCTION, evt)
self.assertEqual("target", node.target)
self.assertEqual("data", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("html", node.tagName)
evt, node = next(pd)
self.assertEqual(pulldom.COMMENT, evt)
self.assertEqual("a comment", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.PROCESSING_INSTRUCTION, evt)
self.assertEqual("target", node.target)
self.assertEqual("data", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("p", node.tagName)
evt, node = next(pd)
self.assertEqual(pulldom.CHARACTERS, evt)
self.assertEqual("text", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("p", node.tagName)
evt, node = next(pd)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("html", node.tagName)
evt, node = next(pd)
self.assertEqual(pulldom.END_DOCUMENT, evt)
def test_parse_semantics(self):
"""Test DOMEventStream parsing semantics."""
items = pulldom.parseString(SMALL_SAMPLE)
evt, node = next(items)
# Just check the node is a Document:
self.assertTrue(hasattr(node, "createElement"))
self.assertEqual(pulldom.START_DOCUMENT, evt)
evt, node = next(items)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("html", node.tagName)
self.assertEqual(2, len(node.attributes))
self.assertEqual(node.attributes.getNamedItem("xmlns:xdc").value,
"http://www.xml.com/books")
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt) # Line break
evt, node = next(items)
# XXX - A comment should be reported here!
# self.assertEqual(pulldom.COMMENT, evt)
# Line break after swallowed comment:
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual("title", node.tagName)
title_node = node
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
self.assertEqual("Introduction to XSL", node.data)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("title", node.tagName)
self.assertTrue(title_node is node)
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("hr", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("hr", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("p", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("xdc:author", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("xdc:author", node.tagName)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
evt, node = next(items)
self.assertEqual(pulldom.CHARACTERS, evt)
evt, node = next(items)
self.assertEqual(pulldom.END_ELEMENT, evt)
# XXX No END_DOCUMENT item is ever obtained:
#evt, node = next(items)
#self.assertEqual(pulldom.END_DOCUMENT, evt)
def _test_thorough(self, pd, before_root=True):
"""Test some of the hard-to-reach parts of the parser, using a mock
parser."""
evt, node = next(pd)
self.assertEqual(pulldom.START_DOCUMENT, evt)
# Just check the node is a Document:
self.assertTrue(hasattr(node, "createElement"))
if before_root:
evt, node = next(pd)
self.assertEqual(pulldom.COMMENT, evt)
self.assertEqual("a comment", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.PROCESSING_INSTRUCTION, evt)
self.assertEqual("target", node.target)
self.assertEqual("data", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("html", node.tagName)
evt, node = next(pd)
self.assertEqual(pulldom.COMMENT, evt)
self.assertEqual("a comment", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.PROCESSING_INSTRUCTION, evt)
self.assertEqual("target", node.target)
self.assertEqual("data", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.START_ELEMENT, evt)
self.assertEqual("p", node.tagName)
evt, node = next(pd)
self.assertEqual(pulldom.CHARACTERS, evt)
self.assertEqual("text", node.data)
evt, node = next(pd)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("p", node.tagName)
evt, node = next(pd)
self.assertEqual(pulldom.END_ELEMENT, evt)
self.assertEqual("html", node.tagName)
evt, node = next(pd)
self.assertEqual(pulldom.END_DOCUMENT, evt)