On terça-feira, 29 de outubro de 2013 06:16:04, Bob Hood wrote:
> On 10/29/2013 3:17 AM, Graham Labdon wrote:
> > Hi
> > Is it possible to use QRegularExpression to perform search and replace on
> > a
> > string?
> > I know I can use QString::replace and pass a regular expression, but
> > wanted
> > to know if it's possible (and how) using just QRegularExpression
>
> Sure:
>
> QString str(tr("This is a line of text that is a line of text that is a
> line of text."));
> QString rpl(tr("bunch of"));
> QRegExp exp("line of");
>
> int pos = 0;
> while((pos = exp.indexIn(str, pos)) != -1)
> {
> str = str.left(pos) + rpl + str.right(str.length() - (pos +
> exp.matchedLength()));
> pos += rpl.length();
> }This misses the point of using QRegularExpression... Also, here's a hint: use the QString::replace overload that takes an index and length of the substring to replace. -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center
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