calculator.c File Reference

#include <glib.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>

Include dependency graph for calculator.c:

Data Structures
union	token_data_t
struct	token_t
struct	parser_state_t

Typedefs
typedef enum token_types_t	token_types_t
typedef enum operators_t	operators_t
typedef union token_data_t	token_data_t
typedef struct token_t	token_t
typedef struct parser_state_t	parser_state_t

Enumerations
enum	token_types_t {   T_NUMBER ,   T_OPERATOR }
enum	operators_t {   O_PLUS ,   O_INC ,   O_MINUS ,   O_DEC ,   O_MULTIPLY ,   O_DIVISION ,   O_MODULO ,   O_POWER ,   O_LEFTROUND ,   O_RIGHTROUND }

Functions
static float	read_number (parser_state_t *self)
static token_t *	get_token (parser_state_t *self)
static float	parse_expression (parser_state_t *self)
static float	parse_additive_expression (parser_state_t *self)
static float	parse_multiplicative_expression (parser_state_t *self)
static float	parse_power_expression (parser_state_t *self)
static float	parse_unary_expression (parser_state_t *self)
static float	parse_primary_expression (parser_state_t *self)
float	dt_calculator_solve (const float x, const char *formula)

Typedef Documentation

operators_t

typedef enum operators_t operators_t

parser_state_t

typedef struct parser_state_t parser_state_t

token_data_t

typedef union token_data_t token_data_t

token_t

typedef struct token_t token_t

token_types_t

typedef enum token_types_t token_types_t

Enumeration Type Documentation

operators_t

enum operators_t

Enumerator
O_PLUS
O_INC
O_MINUS
O_DEC
O_MULTIPLY
O_DIVISION
O_MODULO
O_POWER
O_LEFTROUND
O_RIGHTROUND

token_types_t

enum token_types_t

Enumerator
T_NUMBER
T_OPERATOR

Function Documentation

dt_calculator_solve()

float dt_calculator_solve	(	const float	x,
		const char *	formula
	)

the public interface

References token_t::data, get_token(), O_DEC, O_INC, token_data_t::operator, parser_state_t::p, parse_expression(), T_OPERATOR, parser_state_t::token, token_t::type, and parser_state_t::x.

Referenced by _sanitize_confgen(), dt_bauhaus_popup_key_press(), dt_conf_get_float_fast(), dt_conf_get_int64_fast(), dt_conf_get_int_fast(), dt_confgen_get_float(), dt_confgen_get_int(), and dt_confgen_get_int64().

get_token()

static token_t * get_token ( parser_state_t *  self )

static

References token_t::data, token_data_t::number, O_DEC, O_DIVISION, O_INC, O_LEFTROUND, O_MINUS, O_MODULO, O_MULTIPLY, O_PLUS, O_POWER, O_RIGHTROUND, token_data_t::operator, parser_state_t::p, read_number(), T_NUMBER, T_OPERATOR, token_t::type, and parser_state_t::x.

Referenced by dt_calculator_solve(), parse_additive_expression(), parse_multiplicative_expression(), parse_power_expression(), parse_primary_expression(), and parse_unary_expression().

parse_additive_expression()

static float parse_additive_expression ( parser_state_t *  self )

static

References token_t::data, get_token(), O_MINUS, O_PLUS, token_data_t::operator, parse_multiplicative_expression(), T_OPERATOR, parser_state_t::token, and token_t::type.

Referenced by parse_expression().

parse_expression()

static float parse_expression ( parser_state_t *  self )

static

the parser

References parse_additive_expression().

Referenced by dt_calculator_solve(), and parse_primary_expression().

parse_multiplicative_expression()

static float parse_multiplicative_expression ( parser_state_t *  self )

static

References token_t::data, get_token(), O_DIVISION, O_MODULO, O_MULTIPLY, token_data_t::operator, parse_power_expression(), T_OPERATOR, parser_state_t::token, and token_t::type.

Referenced by parse_additive_expression().

parse_power_expression()

static float parse_power_expression ( parser_state_t *  self )

static

References token_t::data, get_token(), O_POWER, token_data_t::operator, parse_unary_expression(), T_OPERATOR, parser_state_t::token, and token_t::type.

Referenced by parse_multiplicative_expression().

parse_primary_expression()

static float parse_primary_expression ( parser_state_t *  self )

static

References token_t::data, get_token(), token_data_t::number, O_LEFTROUND, O_RIGHTROUND, token_data_t::operator, parse_expression(), T_NUMBER, T_OPERATOR, parser_state_t::token, and token_t::type.

Referenced by parse_unary_expression().

parse_unary_expression()

static float parse_unary_expression ( parser_state_t *  self )

static

References token_t::data, get_token(), O_MINUS, O_PLUS, token_data_t::operator, parse_primary_expression(), parse_unary_expression(), T_OPERATOR, parser_state_t::token, and token_t::type.

Referenced by parse_power_expression(), and parse_unary_expression().

read_number()

static float read_number ( parser_state_t *  self )

static

the scanner

References parser_state_t::p.

Referenced by get_token().