Re: [Vala] Beginners question about keyboard input
- From: "David Keijser" <keijser gmail com>
- To: Frederik <scumm_fredo gmx net>
- Cc: vala-list gnome org
- Subject: Re: [Vala] Beginners question about keyboard input
- Date: Wed, 3 Dec 2008 01:22:55 +0100
2008/12/3 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
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Vala-list gnome org
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I second this. readline is not only better but gets() is not even safe
(see man 3 gets)
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