In Qt; what is the best method to capitalise the first letter of every word in a QString?

Question

I am thinking of regular expressions, but that is not exactly readable. There are also functions like s.toUpper() to consider, and probably other things as well.

So what is the best method for capitalising the first letter of words in a QString?

Answer 1

Using this example as a reference, you can do something like this:

QString toCamelCase(const QString& s)
{
    QStringList parts = s.split(' ', QString::SkipEmptyParts);
    for (int i = 0; i < parts.size(); ++i)
        parts[i].replace(0, 1, parts[i][0].toUpper());

    return parts.join(" ");
}

Answer 2

Exactly the same, but written differently :

QString toCamelCase(const QString& s)
{
    QStringList cased;
        foreach (QString word, s.split(" ", QString::SkipEmptyParts))cased << word.at(0).toUpper() + word.mid(1);

    return cased.join(" ");
}

This uses more memory but is without pointer access (no brackets operator).