/*
 * Copyright (c) 2007-2014, Anthony Minessale II
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 
 * * Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * * Neither the name of the original author; nor the names of any contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 * 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * @defgroup config Config File Parser
 * @ingroup config
 * This module implements a basic interface and file format parser
 * 
 * <pre>
 *
 * EXAMPLE 
 * 
 * [category1]
 * var1 => val1
 * var2 => val2
 * \# lines that begin with \# are comments
 * \#var3 => val3
 * </pre>
 * @{
 */

#ifndef ZAP_CONFIG_H
#define ZAP_CONFIG_H

#include "openzap.h"
#define ZAP_URL_SEPARATOR "://"


#ifdef WIN32
#define ZAP_PATH_SEPARATOR "\\"
#ifndef ZAP_CONFIG_DIR
#define ZAP_CONFIG_DIR "c:\\openzap"
#endif
#define zap_is_file_path(file) (*(file +1) == ':' || *file == '/' || strstr(file, SWITCH_URL_SEPARATOR))
#else
#define ZAP_PATH_SEPARATOR "/"
#ifndef ZAP_CONFIG_DIR
#define ZAP_CONFIG_DIR "/etc/openzap"
#endif
#define zap_is_file_path(file) ((*file == '/') || strstr(file, SWITCH_URL_SEPARATOR))
#endif

typedef struct zap_config zap_config_t;

/*! \brief A simple file handle representing an open configuration file **/
struct zap_config {
	/*! FILE stream buffer to the opened file */
	FILE *file;
	/*! path to the file */
	char path[512];
	/*! current category */
	char category[256];
	/*! current section */
	char section[256];
	/*! buffer of current line being read */
	char buf[1024];
	/*! current line number in file */
	int lineno;
	/*! current category number in file */
	int catno;
	/*! current section number in file */
	int sectno;

	int lockto;
};

/*!
  \brief Open a configuration file
  \param cfg (zap_config_t *) config handle to use
  \param file_path path to the file
  \return 1 (true) on success 0 (false) on failure
*/
int zap_config_open_file(zap_config_t * cfg, const char *file_path);

/*!
  \brief Close a previously opened configuration file
  \param cfg (zap_config_t *) config handle to use
*/
void zap_config_close_file(zap_config_t * cfg);

/*!
  \brief Retrieve next name/value pair from configuration file
  \param cfg (zap_config_t *) config handle to use
  \param var pointer to aim at the new variable name
  \param val pointer to aim at the new value
*/
int zap_config_next_pair(zap_config_t * cfg, char **var, char **val);

/*!
  \brief Retrieve the CAS bits from a configuration string value
  \param strvalue pointer to the configuration string value (expected to be in format whatever:xxxx)
  \param outbits pointer to aim at the CAS bits
*/
OZ_DECLARE (int) zap_config_get_cas_bits(char *strvalue, unsigned char *outbits);


/** @} */
#endif
/* For Emacs:
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 */