/*
 *    Brutus header file for a configuration file class.
 *    Copyright (C) 2004 OMC Denmark ApS.
 *
 *    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 02111-1307 USA
 */


#ifndef _CONFIG_H_
#define _CONFIG_H_

#include <stdlib.h>
#include <string.h>
#include <new>

class Config {
public:
	Config(const char *stack_token)
		{
			_fbuf = NULL;
			_items = NULL;
			_fsize = 0;
			_stack = _strdup(stack_token);
			if (!_stack)
				throw std::bad_alloc();
		};

	Config(void)
		{
			_fbuf = NULL;
			_items = NULL;
			_fsize = 0;
			_stack = NULL;
		};

	~Config()
		{
			if (_fbuf)
				free(_fbuf);

			if (_items)
				free(_items);

			if (_stack)
				free(_stack);
		};

	// Loads the configuration file
	int load(const char *file);

	// Will cyclically get all the item pairs, starting
	// at the first, returning false when there are no more.
	//
	// *MUST* be called before get_value().
	//
	bool get_token_value_pair(const char *token,
				  const char *value);

	// Will return the textual value of the token
	char *get_value(const char *token);

private:
	int _lnum;
	char *_fbuf;
	size_t _fsize;
	char *_stack;

	struct item {
		char *token;
		char *value;
	};
	struct item *_items;

	// whitespace?
	bool wspace(char c)
		{
			switch (c) {
			case ' ' :
			case '\t' :
			case '\r' :
				return true;
			default:
				return false;
			}
		};

	int itemize(void);
	int point_to_value(char **str, char **val);
	int get_next_line(char **str);
	int read_conf(const char *file_name, size_t *size, void **buf);
};

#endif // _CONFIG_H_

/*
 * Local variables:
 * mode: C++
 * c-basic-offset: 8
 * tab-width: 8
 * indent-tabs-mode: nil
 * End:
 */