[Qt-interest] Problem with QRegExp

[Alexandre Beraud]

Hi,

If you use QRegExp::Wildcard then you can not use the regex syntax, but 
only wildcards like ? or *. Moreover, ^ and $ mark respectively the 
beginning and the end of the string. Thus, ^(\s+) looks for a string 
starting with at least one space (but your string starts with 'ii'). 
Finally, exactMatch does not need the ^  and $ assertions. If you need 
to know if your string contains the pattern, just use the contains() method:
if (tmp.contains("debhelper")) {...}
If you really need to capture the number of spaces (do you really need 
it ??), then try:
QRegExp rx("(\\s+)debhelper");
if (tmp.contains(rx)) {QString spaces = rx.cap(1);}

Regards,

Alex


Jan Dinger a écrit :
> Hello folks,
>
> i've problem to find a string in QString.
>
> Hiere is my QString:
> ### snip ###
> QString tmp =  "ii  debhelper                            7.0.15
>                 helper programs for debian/rules";
> ### snap ###
>
> Now, I'll search for "debhelper".
>
> Here is my construction to search for "debhelper".
>
> ### snip ###
> QRegExp rx("^(\\s+)debhelper$");
> rx.setPatternSyntax(QRegExp::Wildcard);
>
> if (rx.exactMatch(tmp))
>     qDebug() << "string includes debhelper";
> ### snap ###
>
> The construction can't find debhelper in the string, can someone tell
> me how must I build the QRegExp correctly?
>
> Thanks for help.
>
> so long
> jd
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>   


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