QStringList question

[RIVOPICO]

Hello i will have the follow string:

QString Line = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,ñ,o,p,q,r,s,t,u,v,w,y,x,z";

And now i want to get this qstring using qstringlist:

\"a\",\"b\",.........\"z\"

So i do this:

#include <QStringList>
#include <QString>
QString Line = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,ñ,o,p,q,r,s,t,u,v,w,y,x,z";
List = Line.split(",");
QString After = List.join(",\"");

So i got:

"a\",b\",c\",d\",e\",f\",g\",h\",i\",j\",k\",l\",m\",n\",±\",o\",p\",q\",r\",s\"
,t\",u\",v\",w\",y\",x\",z""

But i want to include like i said first /" then my letter again /" and semicolon. and at first one double quote " and the end other double quote". It's possible to make this with qstringlist???.

[Guest]

Hi! Do you mean like this?

    QString line = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,ñ,o,p,q,r,s,t,u,v,w,y,x,z";
    QStringList lst = line.split(',');
    for (auto &i: lst)
        i = QString("\"%1\"").arg(i);
    line = lst.join(',');

[VRonin]

@Wieland
from http://doc.qt.io/qt-5/containers.html#the-foreach-keyword

the range-based for that is part of C++ 11 and newer. However, keep in mind that the range-based for might force a Qt container to detach

Since the statement above is a bit generic I tend not use range based for for any Qt container

// #include <QStringBuilder>
QString line = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,ñ,o,p,q,r,s,t,u,v,w,y,x,z";
    QStringList lst = line.split(',');
const int listSize= lst.size();
const QChar quoteChar('\"');
for(int i=0;i<listSize;++i)
lst[i] =  quoteChar % lst.at(i) % quoteChar;

on the other hand, if you don't need the stringlist but just need the QString After you can use:

QString Line = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,ñ,o,p,q,r,s,t,u,v,w,y,x,z";
QString After = '\"' + Line.replace(",","\",\"")+ '\"';

[Guest]

@VRonin said

However, keep in mind (...)

Thank you. Good to know, and another reason to avoid Qt's container classes :)

[VRonin]

@Wieland said in QStringList question:

another reason to avoid Qt's container classes

A bit drastic for a solution...

I tend not use range based for for any Qt container

Sorry, I was too generic myself here, I mean: I tend not use range-based-for for any non const (or non const-able with something like std::as_const) Qt container