diff options
Diffstat (limited to 'doc/codesnippets/doc/src/snippets/code/src_xml_dom_qdom.cpp')
-rw-r--r-- | doc/codesnippets/doc/src/snippets/code/src_xml_dom_qdom.cpp | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/doc/codesnippets/doc/src/snippets/code/src_xml_dom_qdom.cpp b/doc/codesnippets/doc/src/snippets/code/src_xml_dom_qdom.cpp new file mode 100644 index 000000000..d4c8c1979 --- /dev/null +++ b/doc/codesnippets/doc/src/snippets/code/src_xml_dom_qdom.cpp @@ -0,0 +1,180 @@ +//! [0] +doc = QDomDocument() +impl = QDomImplementation() + +# This will create the element, but the resulting XML document will +# be invalid, because '~' is not a valid character in a tag name. +impl.setInvalidDataPolicy(QDomImplementation.AcceptInvalidData) +elt1 = doc.createElement("foo~bar") + +# This will create an element with the tag name "foobar". +impl.setInvalidDataPolicy(QDomImplementation.DropInvalidData) +elt2 = doc.createElement("foo~bar") + +# This will create a null element. +impl.setInvalidDataPolicy(QDomImplementation::ReturnNullNode) +elt3 = doc.createElement("foo~bar") +//! [0] + + +//! [1] +d = QDomDocument() +d.setContent(someXML) +n = d.firstChild() +while !n.isNull(): + if n.isElement(): + e = n.toElement() + print "Element name: %s" % e.tagName() + break + n = n.nextSibling() +//! [1] + + +//! [2] +QDomDocument document +QDomElement element1 = document.documentElement() +QDomElement element2 = element1 +//! [2] + + +//! [3] +QDomElement element3 = document.createElement("MyElement") +QDomElement element4 = document.createElement("MyElement") +//! [3] + + +//! [4] +<body> +<h1>Heading</h1> +<p>Hello <b>you</b></p> +</body> +//! [4] + + +//! [5] +<h1>Heading</h1> +<p>The text...</p> +<h2>Next heading</h2> +//! [5] + + +//! [6] +<h1>Heading</h1> +<p>The text...</p> +<h2>Next heading</h2> +//! [6] + + +//! [7] +<link href="http://qtsoftware.com" color="red" /> +//! [7] + + +//! [8] +e = # some QDomElement... +#... +a = e.attributeNode("href") +print a.value() # prints "http://qtsoftware.com" +a.setValue("http://doc.trolltech.com") # change the node's attribute +a2 = e.attributeNode("href") +print a2.value() # prints "http://doc.trolltech.com" +//! [8] + + +//! [9] +e = # some QDomElement... +#... +s = e.text() +//! [9] + + +//! [10] +text = QString() +element = doc.documentElement() + +n = element.firstChild() +while True: + if not n.isNull() + break + t = n.toText() + if !t.isNull(): + text += t.data() + + n = n.nextSibling() +//! [10] + + +//! [11] +doc = # some QDomDocument ... +root = doc.firstChildElement("database") +elt = root.firstChildElement("entry") +while True: + if not elt.isNull(): + break + # ... + elt = elt.nextSiblingElement("entry") +//! [11] + + +//! [12] +<img src="myimg.png"> +//! [12] + + +//! [13] +<h1>Hello <b>Qt</b> <![CDATA[<xml is cool>]]></h1> +//! [13] + + +//! [14] +Hello Qt <xml is cool> +//! [14] + + +//! [15] +<!-- this is a comment --> +//! [15] + + +//! [16] +doc = QDomDocument("mydocument") +file = QFile("mydocument.xml") +if not file.open(QIODevice::ReadOnly): + return +if not doc.setContent(&file): + file.close() + return +file.close() + +# print out the element names of all elements that are direct children +# of the outermost element. +docElem = doc.documentElement() + +n = docElem.firstChild() +while not n.isNull(): + e = n.toElement() # try to convert the node to an element. + if not e.isNull(): + print e.tagName() # the node really is an element. + n = n.nextSibling() +} + +# Here we append a new element to the end of the document +elem = doc.createElement("img") +elem.setAttribute("src", "myimage.png") +docElem.appendChild(elem) +//! [16] + + +//! [17] +doc = QDomDocument("MyML") +root = doc.createElement("MyML") +doc.appendChild(root) + +tag = doc.createElement("Greeting") +root.appendChild(tag) + +t = doc.createTextNode("Hello World") +tag.appendChild(t) + +xml = doc.toString() +//! [17] |