Re: Arabic-Indic digits and g_date_strftime()

[Behdad Esfahbod <behdad cs toronto edu>]

On Fri, 30 Sep 2005, Gaurav Jain wrote:

> Hi,
>
> I'm trying to print a date onto a GtkLabel in "ar_SA" (arabic) locale. For
> this, I'm using the API g_date_strftime(), in which the format being passed
> is "%c" (to use the current locale's prefered format).
>
> The problem is that the output generated is a corrupt value, such as
> "[??????? %.1d ????? 2005 %.1H:00:00] (the ? stands for an arabic character,
> which is probably fine, but the actual corruption is due to the unwanted
> "%.1d" and "%.1H" in the output). What I really want is the Arabic-Indic
> representation of the date, in which all the numerals are in the
> arabic-indic digits, but this is obviously not producing that.
>
> Could any one point out what I'm doing wrong here (or how to achive my
> goal)?

1. That's not quite supported yet, we are working on supporting
in it for Persian, which affects other languages too.

2. Said support will only be available on Glibc. (until Project
Giulia produces some output...)

3. Even then, the ar_SA locale should define a local digit set
and this is not currently the case.

Summary:  Not possible at this time.  But hey, check first with
the Arab community.  I'm not quite sure that using those digits
is actually preferred at all.

behdad








> Thanks,
> Gaurav
>
> ---sample program that I'm using follows ------
> #include <stdio.h>
> #include <stdlib.h>
> #include <gtk/gtk.h>
> #include <gdk/gdk.h>
> #include <locale.h>
>
> int main(int argc, char *argv[])
> {
> GtkWidget *window;
> GtkWidget *vbox, *hbox;
> GtkWidget *label;
>
> /* set the default locale - ar_SA for this particular test */
> setlocale(LC_ALL, "");
>
> /* generate the date string */
> char buffer[400] = "";
> char format[] = "%c";
>
> char *utf8_format = g_locale_to_utf8(format, -1, NULL, NULL, NULL);
> GDate dateRec;
> dateRec.day = 30;
> dateRec.month = 9;
> dateRec.year = 2005;
>
> if (g_date_strftime(buffer, sizeof(buffer), utf8_format, &dateRec) == 0)
> buffer[0] = '\0';
> printf("buffer is [%s]\n", buffer);
>
> gtk_init (&argc, &argv);
>
> /* create a new window */
> window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
> gtk_widget_set_size_request (GTK_WIDGET (window), 200, 100);
> gtk_window_set_title (GTK_WINDOW (window), "Date");
> g_signal_connect (G_OBJECT (window), "destroy",
> G_CALLBACK (gtk_main_quit), NULL);
> g_signal_connect_swapped (G_OBJECT (window), "delete_event",
> G_CALLBACK (gtk_widget_destroy),
> G_OBJECT (window));
>
> vbox = gtk_vbox_new (FALSE, 0);
> gtk_container_add (GTK_CONTAINER (window), vbox);
> gtk_widget_show (vbox);
>
> /* create new label with the date buffer */
> label = gtk_label_new(buffer);
>
> gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0);
> gtk_widget_show (label);
>
> hbox = gtk_hbox_new (FALSE, 0);
> gtk_container_add (GTK_CONTAINER (vbox), hbox);
> gtk_widget_show (hbox);
>
> gtk_widget_show (window);
>
> gtk_main();
>
> return 0;
> }
>

--behdad
http://behdad.org/