#include <string.h>
#include <stdio.h>
#include "externs.h"

static int display1(void);
static int display2(void);

int display_available_mapsets (int verbose)
{
    if (verbose)
	display1();
    else
	display2();

    return 0;
}

static int display1 (void)
{
    int n;

    fprintf (stdout,"Available mapsets:");
    for (n = 0; n < nmapsets; n++)
    {
        if (n%4)
            fprintf (stdout," ");
        else
            fprintf (stdout,"\n");
        fprintf (stdout,"%2d %-15s", n+1, mapset_name[n]);
    }
    fprintf (stdout,"\n");
    if (nmapsets == 0)
        fprintf (stdout,"** no mapsets **\n");
    fprintf (stdout,"\n");

    return 0;
}

static int display2 (void)
{
    int nleft, len, n;
    char *name;

    nleft = 78;
    for (n = 0; n < nmapsets; n++)
    {
        len = strlen (name = mapset_name[n]);
        if (len > nleft)
        {
            fprintf (stdout,"\n");
            nleft = 78;
        }
        fprintf (stdout,"%s ", name);
        nleft -= (len + 1);
    }
    fprintf (stdout,"\n");

    return 0;
}