/*
 * Copyright (c) 2009 Lukas Mejdrech
 * 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

/** @addtogroup net_app
 *  @{
 */

/** @file
 *  Generic application parsing functions.
 */

#ifndef __NET_APP_PARSE__
#define __NET_APP_PARSE__

/** Prints the parameter unrecognized message and the application help.
 *  @param index The index of the parameter. Input parameter.
 *  @param parameter The parameter name. Input parameter.
 */
void	print_unrecognized( int index, const char * parameter );

/** Parses the next parameter as an integral number.
 *  Uses the offseted actual parameter if the offset is set or the next one if not.
 *  @param argc The total number of the parameters. Input parameter.
 *  @param argv The parameters. Input parameter.
 *  @param index The actual parameter index. Input/output parameter.
 *  @param value The parsed parameter value. Output parameter.
 *  @param name The parameter name to be printed on errors. Input parameter.
 *  @param offset The value offset in the actual parameter. If not set, the next parameter is parsed instead. Input parameter.
 *  @returns EOK on success.
 *  @returns EINVAL if the parameter is missing.
 *  @returns EINVAL if the parameter is in wrong format.
 */
int	parse_parameter_int( int argc, char ** argv, int * index, int * value, const char * name, int offset );

/** Parses the next parameter as a character string.
 *  Uses the offseted actual parameter if the offset is set or the next one if not.
 *  @param argc The total number of the parameters. Input parameter.
 *  @param argv The parameters. Input parameter.
 *  @param index The actual parameter index. Input/output parameter.
 *  @param value The parsed parameter value. Output parameter.
 *  @param name The parameter name to be printed on errors. Input parameter.
 *  @param offset The value offset in the actual parameter. If not set, the next parameter is parsed instead. Input parameter.
 *  @returns EOK on success.
 *  @returns EINVAL if the parameter is missing.
 */
int	parse_parameter_string( int argc, char ** argv, int * index, char ** value, const char * name, int offset );

/** Parses the next named parameter as an integral number.
 *  Uses the offseted actual parameter if the offset is set or the next one if not.
 *  Translates the parameter using the parse_value function.
 *  @param argc The total number of the parameters. Input parameter.
 *  @param argv The parameters. Input parameter.
 *  @param index The actual parameter index. Input/output parameter.
 *  @param value The parsed parameter value. Output parameter.
 *  @param name The parameter name to be printed on errors. Input parameter.
 *  @param offset The value offset in the actual parameter. If not set, the next parameter is parsed instead. Input parameter.
 *  @param parse_value The translation function to parse the named value.
 *  @returns EOK on success.
 *  @returns EINVAL if the parameter is missing.
 *  @returns ENOENT if the parameter name has not been found.
 */
int	parse_parameter_name_int( int argc, char ** argv, int * index, int * value, const char * name, int offset, int ( * parse_value )( const char * value ));

#endif

/** @}
 */