[solved] QDomNode get formated text

patrikd

Hi all,
I'm currently parsing a xml file. I get the content of the QDomeNodes with node.toElement().text(). So far so good.
But I have several nodes which have some formating tags. Those are stripped by the toElement().text() function.
Is there a way to get the content of a node with those informations?
Best,
Patrik

JonB

@patrikd
See the example at https://doc.qt.io/qt-5/qdomelement.html#text for how only the text part is returned.

It only evaluates QDomText and QDomCDATASection objects

You must iterate/recurse through all QDomNode children (QDomNode::childNodes()) if you want to visit all non-pure-text nodes.

EDIT So, to be clear. Totally untested by me, but if you have, say, <b>Bold</b> then QDomElement::text() will only return Bold, which is the only text within the node/element. But if you visit the descendants individually you should find you have a QDomElement with nodeName() == "b" and that has a child QDomText with nodeValue()/text() == "Bold". You can use that nodeName() == "b" if you want to recognise the bold tag or reconstruct the <b>...</b> for yourself.

patrikd

Hi JonB,
thx for the tip. Works fine for me :)
And for those who run into the same:

            QString concatedText = "";
            if (node.hasChildNodes()){
                concatedText = "";
                QDomNode chld = node.firstChild();
                QString tagText = "<%1>%2</%3>";
                while (!chld.isNull()) {
                    QString tag = chld.nodeName();
                    if (tag == "b" || tag == "i" || tag == "u"){
                        QString val = chld.toElement().text();
                        QString replacement = tagText.arg(tag).arg(val).arg(tag);
                        concatedText.append(replacement);
                    }else if (tag == "emph"){
                        QString attr = chld.toElement().attribute("type").trimmed();
                        if (attr == "under"){
                            QString val = chld.toElement().text();
                            QString replacement = tagText.arg("u").arg(val).arg("u");
                            concatedText.append(replacement);
                        }
                    } else if (tag == "br"){
                        concatedText.append("<br/>");
                    } else if (chld.isText()){
                        QString txt = chld.toText().data();
                        concatedText.append(txt);
                    }

                    chld = chld.nextSibling();
                }
            }

Best,
Patrik

JonB

@patrikd
Looking at your code, I wonder if you are trying to reinvent the wheel! :) You seem to be just going through a QDomNode (or whatever) and reconstructing the HTML which did/could have generated it. Are you aware that, say, QString QDomDocument::toString() can be used the other way round, to turn a dom document back to corresponding HTML, instead of you trying to do the (incomplete) work?

Converts the parsed document back to its textual representation.

Bonnie

If you just need something like outerHTML in javascript, you can use QDomNode::save like:

QString output;
QTextStream stream(&output);
node.save(stream, 0);