split camel case string

[GrahamLabdon]

Hi
Say I have a string "TopBanana"
What is the best way to split it into two strings "Top" and "Banana"
I tried with QRegExp but i dont think im using it correctly

QString s = QString("TopBanana");
 
	QRegExp re = QRegExp("[A-Z}");
 
	QStringList sl = s.split(re);

QString s = QString("TopBanana");

	QRegExp re = QRegExp("[A-Z}");

	QStringList sl = s.split(re);

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TIA

Graham

[high_flyer]

is "[A-Z}" a typo?
Didn't you mean "[A-Z]"?

[majorwoody]

You wrote QRegExp("[A-Z}"); - it should be QRegExp("[A-Z]");

You can try this:

QString s = QString("TopBanana");
QRegExp re1 = QRegExp("([A-Z])([a-z]*)");
s.replace(re1, ";\\1\\2");
QStringList sl = s.split(";");

QString s = QString("TopBanana");
QRegExp re1 = QRegExp("([A-Z])([a-z]*)");
s.replace(re1, ";\\1\\2");
QStringList sl = s.split(";");

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[Lykurg]

beside the typo, you have to use a positive lookahead:

QString s = QString("TopBanana");
QStringList sl = s.split(QRegExp("(?=[A-Z])"), QString::SkipEmptyParts);

QString s = QString("TopBanana");
QStringList sl = s.split(QRegExp("(?=[A-Z])"), QString::SkipEmptyParts);

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[GrahamLabdon]

Hi thanks
This solution works but the split gives me 3 strings in the list the first of which is empty

[Lykurg]

This solution works but the split gives me 3 strings in the list the first of which is empty

Yes, and that is the reason why I passed QString::SkipEmptyParts ad a second parameter to the split function!