Parsing non-well formed XML with Qt
来源： https://stackoverflow.com/questions/11513368/parsing-non-well-formed-xml-with-qt
qtxml
QDomDocument fails to set content of an HTML document with <!doctype> tag
问题 When I use QDomDocument with HTML content, it fails to set content if there is a <!doctype html> at the beginning of the document. But actually why?! for example consider the following snippet of code: QDomDocument doc; QString content = "<!doctype html><html><body><a href='bar'>foo</a></body></html>"; qDebug() << doc.setContent(content,false,0,0); QDomElement docElem = doc.documentElement(); QDomNode a = docElem.firstChild(); qDebug() << doc.childNodes().size() << docElem.childNodes().size()
Writing XML Nodes in QtXML (QDomElement)
问题 I would like to write Nodes like <name>Peter</name> (with start and end tag) into a QDomDocument. When I create QDomElements and append them as child to a parent element: QDomElement node = doc.createElement("node"); parent.appendChild(node); They are added as <node/> to the parent element. The parent automatically gets a start and end tag so the file would look like this: <parent> <node/> </parent> But how do I add a value to my node so that it looks like I want it (with value between start
How to convert QString to QDomElement?
问题 I've QDomElement object converted to QString via element.text() method and stored in mysql database in text format. I've a problem while extracting it from database, because having extracted from database it has a format of QString, so I need to convert it again to QDomElement in order to further implement smth with that object. How can I do this? 回答1: You can parse the string into a QDomDocument and then extract the whole tree: QString input("<xml></xml>"); QDomDocument xmlDoc; xmlDoc
Incorrect order of attributes in Qt XML
I have the following code: element.clear(); element.setTagName("accountpoint"); element.setAttribute("code", QString(ID_CONST)+serial); element.setAttribute("name", QString()); element.setAttribute("serial", serial); QFile file(filename); file.open(QIODevice::ReadWrite); QTextStream stream(&file); doc.save(stream, 4); I thought I will get an XML like: <accountpoint code="4871583314750580" name="" serial="14750580"> But I have: <accountpoint serial="14750580" code="4871583314750580" name=""> Why? P.S. Yes, of course, in XML document it does not matter, but I want to get the right order of
Incorrect order of attributes in Qt XML
问题 I have the following code: element.clear(); element.setTagName("accountpoint"); element.setAttribute("code", QString(ID_CONST)+serial); element.setAttribute("name", QString()); element.setAttribute("serial", serial); QFile file(filename); file.open(QIODevice::ReadWrite); QTextStream stream(&file); doc.save(stream, 4); I thought I will get an XML like: <accountpoint code="4871583314750580" name="" serial="14750580"> But I have: <accountpoint serial="14750580" code="4871583314750580" name="">
QEventLoop: Cannot be used without QApplication
问题 I'm trying to validate an xml file against a specific schema. So I'm loading the schema into the QXmlSchema object. But I get some strange errors. My code looks like: int main() { QUrl url("http://www.schema-example.org/myschema.xsd"); QXmlSchema schema; if (schema.load(url) == true) qDebug() << "schema is valid"; else qDebug() << "schema is invalid"; return 1; } When I try to run the above piece of code, Qt errors out saying: QEventLoop: Cannot be used without QApplication QDBusConnection:
Edit Value of a QDomElement?
I need to edit the text of a QDomElement - Eg I have an XML file with its content as - <root> <firstchild>Edit text here</firstchild> </root> How do I edit the text of the child element <firstchild> ? I don't see any functions in the QDomElement of QDomDocument classes descriptions provided in Qt 4.7 Edit1 - I am adding more details. I need to read, modify and save an xml file. To format of the file is as below - <root> <firstchild>Edit text here</firstchild> </root> The value of element needs to be edited.I code to read the xml file is - QFile xmlFile(".\\iWantToEdit.xml"); xmlFile.open
Edit Value of a QDomElement?
问题 I need to edit the text of a QDomElement - Eg I have an XML file with its content as - <root> <firstchild>Edit text here</firstchild> </root> How do I edit the text of the child element <firstchild> ? I don't see any functions in the QDomElement of QDomDocument classes descriptions provided in Qt 4.7 Edit1 - I am adding more details. I need to read, modify and save an xml file. To format of the file is as below - <root> <firstchild>Edit text here</firstchild> </root> The value of element