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/* Copyright (c) 2004-2008 Sami Pietila
* Copyright (c) 2008-2009 Robert Ancell
*
* 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, 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., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#ifndef MP_EQUATION_H
#define MP_EQUATION_H
#include "mp.h"
typedef enum {
PARSER_ERR_NONE = 0,
PARSER_ERR_INVALID,
PARSER_ERR_OVERFLOW,
PARSER_ERR_UNKNOWN_VARIABLE,
PARSER_ERR_UNKNOWN_FUNCTION,
PARSER_ERR_UNKNOWN_CONVERSION,
PARSER_ERR_MP
} MPErrorCode;
/* Options for parser */
typedef struct {
/* Default number base */
int base;
/* The wordlength for binary operations in bits (e.g. 8, 16, 32) */
int wordlen;
/* Units for angles (e.g. radians, degrees) */
MPAngleUnit angle_units;
// FIXME:
// int enable_builtins;
/* Data to pass to callbacks */
void *callback_data;
/* Function to check if a variable is defined */
int (*variable_is_defined)(const char* name, void* data);
/* Function to get variable values */
int (*get_variable)(const char* name, MPNumber* z, void* data);
/* Function to set variable values */
void (*set_variable)(const char* name, const MPNumber *x, void* data);
/* Function to check if a function is defined */
int (*function_is_defined)(const char* name, void* data);
/* Function to solve functions */
int (*get_function)(const char* name, const MPNumber* x, MPNumber* z, void* data);
/* Function to convert units */
int (*convert)(const MPNumber* x, const char* x_units, const char* z_units, MPNumber* z, void* data);
} MPEquationOptions;
MPErrorCode mp_equation_parse(const char* expression, MPEquationOptions* options, MPNumber* result, char** error_token);
const char* mp_error_code_to_string(MPErrorCode error_code);
int sub_atoi(const char* data);
int super_atoi(const char* data);
#endif
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