CODEWITHSUNDEEP
c++qtxquery
Akura Ryu
Akura Ryu

Reputation: 31

QXmlQuery::setQuery() cannot query when I pass source code to its parameter

Qt's QXmlQuery::setQuery has a polymorphism, just like:

void QXmlQuery::setQuery(const QString &sourceCode, const QUrl &documentURI = QUrl())

However, when I pass a HTML source code to the parameter sourceCode, and try to evaluate, I can only get an error:

Error XPST0003 in file:///, at line 1, column 2: syntax error, unexpected unknown keyword, expecting QName or NCName

Here is an example:

QString srcHTML = "<html>......</html>";    // An HTML forked from any website

QXmlQuery query;
query.setQuery(srcHTML, QUrl("/html/body/"));

QString r;
query.evaluateTo(&r);

qDebug() << r;

Then an error message shows:

Error XPST0003 in file:///html/body/, at line 1, column 2: syntax error, unexpected unknown keyword, expecting QName or NCName ""

That's strange, even though I've feeded QXmlQuery::setQuery() a valid HTML source!

Upvotes: 1

Views: 367

Answers (1)

Martin Honnen
Martin Honnen

Reputation: 167676

Use query.setFocus(srcHTML); query.setQuery("/html/body");. Note that the input string to setFocus needs to be well-formed XML which HTML often not is.

Upvotes: 1

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