我们从Python开源项目中，提取了以下10个代码示例，用于说明如何使用xml.dom.pulldom.CHARACTERS。
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))
def test_expandItem(self): """Ensure expandItem works as expected.""" items = pulldom.parseString(SMALL_SAMPLE) # Loop through the nodes until we get to a "title" start tag: for evt, item in items: if evt == pulldom.START_ELEMENT and item.tagName == "title": items.expandNode(item) self.assertEqual(1, len(item.childNodes)) break else: self.fail("No \"title\" element detected in SMALL_SAMPLE!") # Loop until we get to the next start-element: for evt, node in items: if evt == pulldom.START_ELEMENT: break self.assertEqual("hr", node.tagName, "expandNode did not leave DOMEventStream in the correct state.") # Attempt to expand a standalone element: items.expandNode(node) self.assertEqual(next(items)[0], pulldom.CHARACTERS) evt, node = next(items) self.assertEqual(node.tagName, "p") items.expandNode(node) next(items) # Skip character data evt, node = next(items) self.assertEqual(node.tagName, "html") with self.assertRaises(StopIteration): next(items) items.clear() self.assertIsNone(items.parser) self.assertIsNone(items.stream)
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)
