Re: [Vala] Beginners question about keyboard input

[Frederik <scumm_fredo gmx net>]

Clément DAVID wrote:
> Hi,
>
> I don't use the Genie syntax but a working sample for vala is :
>
> using GLib;
>
> public class SumCol {
>
>         public static it main(string [] args)
>         {
>                 int MAXLINELEN = 128;
>                 
>                 int sum = 0;
>                 char[] str = new char [MAXLINELEN];
>                 
>                 while(stdin.gets(str) != null)
>                 {
>                         sum += ((string)str).to_int();
>                 }
>                 
>                 stdout.printf("%d\n",sum);
>                 return 0;
>         }
> }
> <<
>
> You can simply cast a char array to string as the string class is only
> a wrapper around NULL terminated unichar array.

I would suggest using GNU Readline for string input:

--------
namespace ReadLine {
    [CCode (cheader_filename = "readline/readline.h", cname = "readline")]
    public extern string? read_line (string prompt);
}

static int main () {
    var name = ReadLine.read_line ("Please enter your name: ");
    if (name != null && name != "") {
        stdout.printf ("Hello, %s\n", name);
    }
    return 0;
}
--------
$ valac -X -lreadline readlinesample.vala
$ ./readlinesample


Regards,

Frederik