我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用xml.dom.childNodes()。
def testInsertBeforeFragment(self): dom, orig, c1, c2, c3, frag = self._create_fragment_test_nodes() dom.documentElement.insertBefore(frag, None) self.confirm(tuple(dom.documentElement.childNodes) == (orig, c1, c2, c3), "insertBefore(<fragment>, None)") frag.unlink() dom.unlink() dom, orig, c1, c2, c3, frag = self._create_fragment_test_nodes() dom.documentElement.insertBefore(frag, orig) self.confirm(tuple(dom.documentElement.childNodes) == (c1, c2, c3, orig), "insertBefore(<fragment>, orig)") frag.unlink() dom.unlink()
def testCloneDocumentDeep(self): doc = parseString("<?xml version='1.0'?>\n" "<!-- comment -->" "<!DOCTYPE doc [\n" "<!NOTATION notation SYSTEM 'http://xml.python.org/'>\n" "]>\n" "<doc attr='value'/>") doc2 = doc.cloneNode(1) self.confirm(not (doc.isSameNode(doc2) or doc2.isSameNode(doc)), "testCloneDocumentDeep: document objects not distinct") self.confirm(len(doc.childNodes) == len(doc2.childNodes), "testCloneDocumentDeep: wrong number of Document children") self.confirm(doc2.documentElement.nodeType == Node.ELEMENT_NODE, "testCloneDocumentDeep: documentElement not an ELEMENT_NODE") self.confirm(doc2.documentElement.ownerDocument.isSameNode(doc2), "testCloneDocumentDeep: documentElement owner is not new document") self.confirm(not doc.documentElement.isSameNode(doc2.documentElement), "testCloneDocumentDeep: documentElement should not be shared") if doc.doctype is not None: # check the doctype iff the original DOM maintained it self.confirm(doc2.doctype.nodeType == Node.DOCUMENT_TYPE_NODE, "testCloneDocumentDeep: doctype not a DOCUMENT_TYPE_NODE") self.confirm(doc2.doctype.ownerDocument.isSameNode(doc2)) self.confirm(not doc.doctype.isSameNode(doc2.doctype))
def testNormalize(self): doc = parseString("<doc/>") root = doc.documentElement root.appendChild(doc.createTextNode("first")) root.appendChild(doc.createTextNode("second")) self.confirm(len(root.childNodes) == 2 and root.childNodes.length == 2, "testNormalize -- preparation") doc.normalize() self.confirm(len(root.childNodes) == 1 and root.childNodes.length == 1 and root.firstChild is root.lastChild and root.firstChild.data == "firstsecond" , "testNormalize -- result") doc.unlink() doc = parseString("<doc/>") root = doc.documentElement root.appendChild(doc.createTextNode("")) doc.normalize() self.confirm(len(root.childNodes) == 0 and root.childNodes.length == 0, "testNormalize -- single empty node removed") doc.unlink()
def testNormalizeCombineAndNextSibling(self): doc = parseString("<doc/>") root = doc.documentElement root.appendChild(doc.createTextNode("first")) root.appendChild(doc.createTextNode("second")) root.appendChild(doc.createElement("i")) self.confirm(len(root.childNodes) == 3 and root.childNodes.length == 3, "testNormalizeCombineAndNextSibling -- preparation") doc.normalize() self.confirm(len(root.childNodes) == 2 and root.childNodes.length == 2 and root.firstChild.data == "firstsecond" and root.firstChild is not root.lastChild and root.firstChild.nextSibling is root.lastChild and root.firstChild.previousSibling is None and root.lastChild.previousSibling is root.firstChild and root.lastChild.nextSibling is None , "testNormalizeCombinedAndNextSibling -- result") doc.unlink()
def testNormalizeDeleteWithNextSibling(self): doc = parseString("<doc/>") root = doc.documentElement root.appendChild(doc.createTextNode("")) root.appendChild(doc.createTextNode("second")) self.confirm(len(root.childNodes) == 2 and root.childNodes.length == 2, "testNormalizeDeleteWithNextSibling -- preparation") doc.normalize() self.confirm(len(root.childNodes) == 1 and root.childNodes.length == 1 and root.firstChild.data == "second" and root.firstChild is root.lastChild and root.firstChild.nextSibling is None and root.firstChild.previousSibling is None , "testNormalizeDeleteWithNextSibling -- result") doc.unlink()
def testNormalizeDeleteWithTwoNonTextSiblings(self): doc = parseString("<doc/>") root = doc.documentElement root.appendChild(doc.createElement("i")) root.appendChild(doc.createTextNode("")) root.appendChild(doc.createElement("i")) self.confirm(len(root.childNodes) == 3 and root.childNodes.length == 3, "testNormalizeDeleteWithTwoSiblings -- preparation") doc.normalize() self.confirm(len(root.childNodes) == 2 and root.childNodes.length == 2 and root.firstChild is not root.lastChild and root.firstChild.nextSibling is root.lastChild and root.firstChild.previousSibling is None and root.lastChild.previousSibling is root.firstChild and root.lastChild.nextSibling is None , "testNormalizeDeleteWithTwoSiblings -- result") doc.unlink()
def testNormalizeDeleteAndCombine(self): doc = parseString("<doc/>") root = doc.documentElement root.appendChild(doc.createTextNode("")) root.appendChild(doc.createTextNode("second")) root.appendChild(doc.createTextNode("")) root.appendChild(doc.createTextNode("fourth")) root.appendChild(doc.createTextNode("")) self.confirm(len(root.childNodes) == 5 and root.childNodes.length == 5, "testNormalizeDeleteAndCombine -- preparation") doc.normalize() self.confirm(len(root.childNodes) == 1 and root.childNodes.length == 1 and root.firstChild is root.lastChild and root.firstChild.data == "secondfourth" and root.firstChild.previousSibling is None and root.firstChild.nextSibling is None , "testNormalizeDeleteAndCombine -- result") doc.unlink()
def testNormalizeDeleteWithPrevSibling(self): doc = parseString("<doc/>") root = doc.documentElement root.appendChild(doc.createTextNode("first")) root.appendChild(doc.createTextNode("")) self.confirm(len(root.childNodes) == 2 and root.childNodes.length == 2, "testNormalizeDeleteWithPrevSibling -- preparation") doc.normalize() self.confirm(len(root.childNodes) == 1 and root.childNodes.length == 1 and root.firstChild.data == "first" and root.firstChild is root.lastChild and root.firstChild.nextSibling is None and root.firstChild.previousSibling is None , "testNormalizeDeleteWithPrevSibling -- result") doc.unlink()
def testAppendChild(self): dom = parse(tstfile) dom.documentElement.appendChild(dom.createComment("Hello")) self.confirm(dom.documentElement.childNodes[-1].nodeName == "#comment") self.confirm(dom.documentElement.childNodes[-1].data == "Hello") dom.unlink()
def testAppendChildFragment(self): dom, orig, c1, c2, c3, frag = self._create_fragment_test_nodes() dom.documentElement.appendChild(frag) self.confirm(tuple(dom.documentElement.childNodes) == (orig, c1, c2, c3), "appendChild(<fragment>)") frag.unlink() dom.unlink()
def testReplaceChildFragment(self): dom, orig, c1, c2, c3, frag = self._create_fragment_test_nodes() dom.documentElement.replaceChild(frag, orig) orig.unlink() self.confirm(tuple(dom.documentElement.childNodes) == (c1, c2, c3), "replaceChild(<fragment>)") frag.unlink() dom.unlink()
def testUnlink(self): dom = parse(tstfile) self.assertTrue(dom.childNodes) dom.unlink() self.assertFalse(dom.childNodes)
def testContext(self): with parse(tstfile) as dom: self.assertTrue(dom.childNodes) self.assertFalse(dom.childNodes)
def test_toprettyxml_preserves_content_of_text_node(self): # see issue #4147 for str in ('<B>A</B>', '<A><B>C</B></A>'): dom = parseString(str) dom2 = parseString(dom.toprettyxml()) self.assertEqual( dom.getElementsByTagName('B')[0].childNodes[0].toxml(), dom2.getElementsByTagName('B')[0].childNodes[0].toxml())
def testProcessingInstruction(self): dom = parseString('<e><?mypi \t\n data \t\n ?></e>') pi = dom.documentElement.firstChild self.confirm(pi.target == "mypi" and pi.data == "data \t\n " and pi.nodeName == "mypi" and pi.nodeType == Node.PROCESSING_INSTRUCTION_NODE and pi.attributes is None and not pi.hasChildNodes() and len(pi.childNodes) == 0 and pi.firstChild is None and pi.lastChild is None and pi.localName is None and pi.namespaceURI == xml.dom.EMPTY_NAMESPACE)
def testCloneElementShallow(self): dom, clone = self._setupCloneElement(0) self.confirm(len(clone.childNodes) == 0 and clone.childNodes.length == 0 and clone.parentNode is None and clone.toxml() == '<doc attr="value"/>' , "testCloneElementShallow") dom.unlink()
def testCloneDocumentTypeDeepOk(self): doctype = create_nonempty_doctype() clone = doctype.cloneNode(1) self.confirm(clone is not None and clone.nodeName == doctype.nodeName and clone.name == doctype.name and clone.publicId == doctype.publicId and clone.systemId == doctype.systemId and len(clone.entities) == len(doctype.entities) and clone.entities.item(len(clone.entities)) is None and len(clone.notations) == len(doctype.notations) and clone.notations.item(len(clone.notations)) is None and len(clone.childNodes) == 0) for i in range(len(doctype.entities)): se = doctype.entities.item(i) ce = clone.entities.item(i) self.confirm((not se.isSameNode(ce)) and (not ce.isSameNode(se)) and ce.nodeName == se.nodeName and ce.notationName == se.notationName and ce.publicId == se.publicId and ce.systemId == se.systemId and ce.encoding == se.encoding and ce.actualEncoding == se.actualEncoding and ce.version == se.version) for i in range(len(doctype.notations)): sn = doctype.notations.item(i) cn = clone.notations.item(i) self.confirm((not sn.isSameNode(cn)) and (not cn.isSameNode(sn)) and cn.nodeName == sn.nodeName and cn.publicId == sn.publicId and cn.systemId == sn.systemId)
def testCloneDocumentTypeShallowOk(self): doctype = create_nonempty_doctype() clone = doctype.cloneNode(0) self.confirm(clone is not None and clone.nodeName == doctype.nodeName and clone.name == doctype.name and clone.publicId == doctype.publicId and clone.systemId == doctype.systemId and len(clone.entities) == 0 and clone.entities.item(0) is None and len(clone.notations) == 0 and clone.notations.item(0) is None and len(clone.childNodes) == 0)
def testBug0777884(self): doc = parseString("<o>text</o>") text = doc.documentElement.childNodes[0] self.assertEqual(text.nodeType, Node.TEXT_NODE) # Should run quietly, doing nothing. text.normalize() doc.unlink()
def testSiblings(self): doc = parseString("<doc><?pi?>text?<elm/></doc>") root = doc.documentElement (pi, text, elm) = root.childNodes self.confirm(pi.nextSibling is text and pi.previousSibling is None and text.nextSibling is elm and text.previousSibling is pi and elm.nextSibling is None and elm.previousSibling is text, "testSiblings") doc.unlink()
def testParents(self): doc = parseString( "<doc><elm1><elm2/><elm2><elm3/></elm2></elm1></doc>") root = doc.documentElement elm1 = root.childNodes[0] (elm2a, elm2b) = elm1.childNodes elm3 = elm2b.childNodes[0] self.confirm(root.parentNode is doc and elm1.parentNode is root and elm2a.parentNode is elm1 and elm2b.parentNode is elm1 and elm3.parentNode is elm2b, "testParents") doc.unlink()
def testNodeListItem(self): doc = parseString("<doc><e/><e/></doc>") children = doc.childNodes docelem = children[0] self.confirm(children[0] is children.item(0) and children.item(1) is None and docelem.childNodes.item(0) is docelem.childNodes[0] and docelem.childNodes.item(1) is docelem.childNodes[1] and docelem.childNodes.item(0).childNodes.item(0) is None, "test NodeList.item()") doc.unlink()
def testSAX2DOM(self): from xml.dom import pulldom sax2dom = pulldom.SAX2DOM() sax2dom.startDocument() sax2dom.startElement("doc", {}) sax2dom.characters("text") sax2dom.startElement("subelm", {}) sax2dom.characters("text") sax2dom.endElement("subelm") sax2dom.characters("text") sax2dom.endElement("doc") sax2dom.endDocument() doc = sax2dom.document root = doc.documentElement (text1, elm1, text2) = root.childNodes text3 = elm1.childNodes[0] self.confirm(text1.previousSibling is None and text1.nextSibling is elm1 and elm1.previousSibling is text1 and elm1.nextSibling is text2 and text2.previousSibling is elm1 and text2.nextSibling is None and text3.previousSibling is None and text3.nextSibling is None, "testSAX2DOM - siblings") self.confirm(root.parentNode is doc and text1.parentNode is root and elm1.parentNode is root and text2.parentNode is root and text3.parentNode is elm1, "testSAX2DOM - parents") doc.unlink()
