How can I make a QString html-escaped

Question

How do I escape/sanitize a QString that contains HTML?

I.e. showInBroswser(escaped(str)) == showInNotepad(str);

score 54 · Accepted Answer · edited Jun 20 '20 at 09:12

54

Qt 5

Use QString::toHtmlEscaped()

QString src;
Qstring html = src.toHtmlEscaped();
showInBrowser(html) == showInNotepad(str);

Use Qt::escape.

#include <QtGui/qtextdocument.h>

QString src;
Qstring html = Qt::escape(src);
showInBrowser(html) == showInNotepad(str);

edited Jun 20 '20 at 09:12

Community

answered Jan 05 '13 at 15:41

PenguinCoder

Does not work for me because it does not encode german special characters like ä Is there a better function that knows ALL special characters? – feedc0de Jan 13 '16 at 09:44
3

How do you reverse this? i.e., there is no `QString::fromHtmlEscaped()` – Phlucious Oct 05 '18 at 17:58

score 8 · Answer 2 · edited Feb 12 '18 at 15:50

8

Just to bring this answer up with the times, Qt 5.1 has QString::toHtmlEscaped().

edited Feb 12 '18 at 15:50

cbuchart

answered Jul 25 '13 at 04:38

gremwell

score -2 · Answer 3 · answered Jan 05 '13 at 15:35

If you want to insert plain text to a QTextEdit you can use:

void QTextEdit::insertPlainText ( const QString & text );

and, for example, to modify the color :

void QTextEdit::setTextColor ( const QColor & c );

And similar for the font or other property of the text...

Hope that helps.