/*
 *	aegis - project change supervisor
 *	Copyright (C) 1999 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 implement the add_path_suffix substitution
 */

#include <os.h>
#include <str_list.h>
#include <sub.h>
#include <sub/addpathsuffi.h>
#include <trace.h>
#include <wstr_list.h>


wstring_ty *
sub_add_path_suffix(scp, arg)
	sub_context_ty	*scp;
	wstring_list_ty	*arg;
{
	string_ty	*s;
	wstring_ty	*result;
	size_t		j;
	string_list_ty	sl;
	string_ty	*suffix;

	/*
	 * Make sure we have sufficient arguments.
	 */
	trace(("sub_add_path_suffix()\n{\n"/*}*/));
	if (arg->nitems < 2)
	{
		sub_context_error_set(scp, i18n("requires at least one argument"));
		trace(("return NULL;\n"));
		trace((/*{*/"}\n"));
		return 0;
	}

	/*
	 * add the suffix to each of the paths in each of the arguments
	 */
	suffix = wstr_to_str(arg->item[1]);
	string_list_constructor(&sl);
	for (j = 2; j < arg->nitems; ++j)
	{
		size_t		k;
		string_list_ty	tmp;

		s = wstr_to_str(arg->item[j]);
		str2wl(&tmp, s, ":", 0);
		str_free(s);
		for (k = 0; k < tmp.nstrings; ++k)
		{
			s = os_path_cat(tmp.string[k], suffix);
			string_list_append(&sl, s);
			str_free(s);
		}
		string_list_destructor(&tmp);
	}
	str_free(suffix);
	s = wl2str(&sl, 0, sl.nstrings, ":");
	result = str_to_wstr(s);
	str_free(s);

	/*
	 * success
	 */
	trace(("return %8.8lX;\n", (long)result));
	trace((/*{*/"}\n"));
	return result;
}