/*
 *	aegis - project change supervisor
 *	Copyright (C) 2001-2003 Peter Miller;
 *	All rights reserved.
 *
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	This program is distributed in the hope that it will be useful,
 *	but WITHOUT ANY WARRANTY; without even the implied warranty of
 *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *	GNU General Public License for more details.
 *
 *	You should have received a copy of the GNU General Public License
 *	along with this program; if not, write to the Free Software
 *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 * MANIFEST: functions to manipulate upcases
 */

#include <ac/ctype.h>

#include <mem.h>
#include <str.h>


string_ty *
str_upcase(string_ty *s)
{
    static char     *tmp;
    static size_t   tmplen;
    string_ty	    *retval;
    char	    *cp1;
    char	    *cp2;

    if (s->str_length > tmplen)
    {
	for (;;)
	{
    	    tmplen = tmplen * 2 + 8;
	    if (s->str_length <= tmplen)
		break;
	}
	tmp = (char *)mem_change_size(tmp, tmplen);
    }
    for (cp1 = s->str_text, cp2 = tmp; *cp1; ++cp1, ++cp2)
    {
	unsigned char c = *cp1;
	if (islower((unsigned char)c))
    	    c = toupper(c);
	*cp2 = c;
    }
    retval = str_n_from_c(tmp, s->str_length);
    return retval;
}
