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I want to split a QString, but according to the documentation, the split function only allows for splitting whenever the character to split at occurs. What I want is to only split at the place where first time the character occurs.
For example:
5+6+7 wiht default split() would end in a list containing ["5","6","7"]
what I want: a list with only two elements -> ["5","6+7"]
Thanks in advance for your answers!
414
To break up a string into a string list, we used the QString::split() function. The argument to split can be a single character, a string, or a QRegExp. To concatenate all the strings in a string list into a single string (with an optional separator), we used the join() function.
If you do not need to modify the substring, then you can use QStringRef . The QStringRef class is a read only wrapper around an existing QString that references a substring within the existing string. This gives much better performance than creating a new QString object to contain the sub-string.
There are various ways to achieve this, but this is likely and arguably the simplest:
#include <QString>
#include <QDebug>
int main()
{
QString string("5+6+7");
qDebug() << string.section('+', 0, 0) << string.section('+', 1);
return 0;
}
TEMPLATE = app
TARGET = main
QT = core
SOURCES += main.cpp
qmake && make && ./main
"5" "6+7"
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