Passing a structure as a command line argument.

jenya7

I execute Python scripts

QString PROC_Run(QString proc_name, QStringList proc_args)
{
    QProcess proc;
    QString out;

    proc.start(proc_name, proc_args);
    proc.waitForFinished(-1);
    out = proc.readAll();

    return out;
}

and pass arguments

python3 my.py "aaa" 123 "bbb"

But actually I pass only string or numeric.
Can I pass a pointer to an array or some structure as an argument? Say the structure will be a common object, recognizable by Qt and Python as well.

jsulm

@jenya7 said in Passing a structure as a command line argument.:

Can I pass a pointer to an array or some structure as an argument?

No, you can't. You can only pass parameters which you can also pass in a terminal, so strings and integers.

jenya7

@jsulm
Thanks. Hope dies last.

JonB

@jenya7 said in Passing a structure as a command line argument.:

But actually I pass only string or numeric.

Actually you can only pass string(s) from the command-line, nothing else. They arrive in the char *argv[] parameter to your main(int argc, char *argv[]). The "s on your command are removed anyway, and the 123 arrives as a string not a number (you can call code to convert it to a number in your program if you choose to, but it's a string).

If this is really important to you, you could pass a JSON string --- either directly on the command-line or maybe in a file whose name you pass instead --- which represents, say, an array, and then put code into your program to call QJsonDocument QJsonDocument::fromJson() to parse it into an array for your code to use.

python3 my.py "{ 'array': [ 'aaa', 123, 'bbb' ] }"

Just a possibility.