how to trim or normalize a QString?

[opengpu]

how to trim or normalize a QString? mainly remove the space and comma.
eg. " , a,b ,c, d,," to "a,b,c,d"

[KroMignon]

@opengpu the easiest way is:

 QString noSpace = myString.split(' ', QString::SkipEmptyParts).join("");

[J.Hilk]

@KroMignon said in how to trim or normalize a QString?:

the easiest way is:

I disagree, the easiest way is to use
https://doc.qt.io/qt-5/qstring.html#trimmed
or
https://doc.qt.io/qt-5/qstring.html#simplified

;-)

edit:
forgot the comma requirement:
https://doc.qt.io/qt-5/qstring.html#replace-3

[opengpu]

u mean 1st replace all "," to " ", and then simplified?
and then split by " ", i will get "a" "b" "c" "d" in the QStringlist, right?

[J.Hilk]

@opengpu
well yes, and no.

If your goal is to have all normal chars in a QStringList, than using @KroMignon split with the extra argument is probably faster and easier:

auto list = myString.split(',' , QString::SkipEmptyParts);

[KroMignon]

@opengpu said in how to trim or normalize a QString?:

mainly remove the space and comma.

Oups, I think a read/reply too quickly your question: perhaps is should be:

auto listParts = myString.split(QRegExp(" |,"), QString::SkipEmptyParts);

This will remove all spaces and coma and generate a list with the elements.
perhaps a better implementation could be

auto listParts = myString.remove(' ').split(',');

So you could get also empty elements.

[JKSH]

@KroMignon said in how to trim or normalize a QString?:

auto listParts = myString.split(QRegExp(" |,"), QString::SkipEmptyParts);

QRegExp is deprecated; I suggest QRegularExpression instead.