/****************************************************************************
 * Copyright (c) 2016-2017,2018 Free Software Foundation, Inc.              *
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 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
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 ****************************************************************************/

/****************************************************************************
 *  Author: Thomas E. Dickey                                                *
 ****************************************************************************/

/*
 * clear.c --  clears the terminal's screen
 */

#define USE_LIBTINFO
#include <clear_cmd.h>

MODULE_ID("$Id: clear_cmd.c,v 1.4 2018/08/04 18:43:22 Nicholas.Marriott Exp $")

static int
putch(int c)
{
    return putchar(c);
}

int
clear_cmd(bool legacy)
{
    int retval = tputs(clear_screen, lines > 0 ? lines : 1, putch);
    if (!legacy) {
	/* Clear the scrollback buffer if possible. */
	char *E3 = tigetstr("E3");
	if (E3)
	    (void) tputs(E3, lines > 0 ? lines : 1, putch);
    }
    return retval;
}
