/*
 *	fhist - file history and comparison tools
 *	Copyright (C) 1998, 2002 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 lengths
 */

#include <str.h>
#include <sub/length.h>
#include <sub/private.h>
#include <trace.h>
#include <wstr_list.h>


wstring_ty *
sub_length(sub_context_ty *scp, wstring_list_ty *arg)
{
    wstring_ty      *result;
    string_ty       *s;

    trace(("sub_length()\n{\n"));
    if (arg->nitems != 2)
    {
	sub_context_error_set(scp, i18n("requires one argument"));
	trace(("return NULL;\n"));
	trace(("}\n"));
	return 0;
    }
    s = str_format("%ld", (long)arg->item[1]->wstr_length);
    trace(("result = \"%s\";\n", s->str_text));
    result = str_to_wstr(s);
    str_free(s);
    trace(("return %8.8lX;\n", (long)result));
    trace(("}\n"));
    return result;
}
