Remove Parts of a String

[meikelneit]

Hello again,

im Looking to solve the fallowing, and i am Looking for ideas.

The string Looks like: Eintrag_2 { ExternalWritable := 'False'} : Bool;

and i want to remove { …} the curly bracket and everything between it. Does that just work with a parser or does the RegularExpressions have some Tools to do the Job?

[koahnig]

@meikelneit

This is depending on the complexity of text between curled braces. However, I would try first with QRegularExpression.

[meikelneit]

If someone wants to do the same, i did it with the fallowing Code:

int l_indexAnfang, l_indexEnde, l_deleteWeite;
l_indexAnfang = p_String.indexOf(QRegularExpression("{"),0);
l_indexEnde = p_String.indexOf(QRegularExpression("}"),0);
l_deleteWeite = l_indexEnde - l_indexAnfang + 1;
p_String = p_String.remove(l_indexAnfang, l_deleteWeite);

[VRonin]

p_String.replace(QRegularExpression(QStringLiteral("{.*}")),QString());

https://doc.qt.io/qt-5/qstring.html#replace-12

[meikelneit]

Evene better. What is the Macro inside the Expression good for?

Does this just "create" the string while compiling so it hasnt to be created in the runtime anymore?

[VRonin]

@meikelneit said in Remove Parts of a String:

Does this just "create" the string while compiling so it hasnt to be created in the runtime anymore?

https://woboq.com/blog/qstringliteral.html

[meikelneit]

Thank you very mutch.