115 lines
2.5 KiB
C
115 lines
2.5 KiB
C
/* computorv1.h */
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#ifndef COMPUTORV1_H
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#define COMPUTORV1_H
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#include "libft.h"
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#include <stdio.h> // tmp for printf, for float debug
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#include <stdarg.h> // for va_list
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#include <stdbool.h>
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/** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* LEXER.C
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*/
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typedef enum t_token_type
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{
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TOKEN_VARIABLE, // x, y, etc.
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TOKEN_NUMBER_INT, // int
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TOKEN_NUMBER_DOUBLE, // double
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TOKEN_POWER, // ^ or **
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TOKEN_SIGN_PLUS, // +
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TOKEN_SIGN_MINUS, // -
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TOKEN_FACTOR_MULT, // *
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TOKEN_FACTOR_DIV, // / or :
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TOKEN_EQUAL, // =
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TOKEN_END // null (end of input)
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} token_type;
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typedef enum t_token_tag
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{
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TOKEN_NO_TAG,
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TOKEN_NUMBER,
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TOKEN_SIGN,
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TOKEN_FACTOR,
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} token_tag;
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typedef struct
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{
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token_type type;
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token_tag tag;
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union
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{
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char value_char;
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int value_int;
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double value_double;
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};
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} token;
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int lexerize(const char *input, token *tokens);
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/** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* PARSER.C
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*/
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typedef enum t_term_position
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{
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TERM_LEFT, // a in "a = b"
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TERM_RIGHT, // b in "a = b"
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TERM_END, // last term
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} term_position;
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typedef enum t_term_sign
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{
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TERM_PLUS, // +
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TERM_MINUS, // -
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TERM_NULL, // null -> for the last term
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} term_sign;
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typedef struct t_term
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{
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term_position position;
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term_sign sign;
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double coefficient;
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int exponent;
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} term;
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int parse(token *tokens, term *terms, int terms_count_max);
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/** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* UTILS/ERRORS.C
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*/
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typedef enum t_program_error
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{
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ERROR_BASE = 1, // start at 1 to avoid exit(0) for errors
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ERROR_TOKEN_COUNT,
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ERROR_UNKNOWN_TOKEN,
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ERROR_NUMBER_TOO_BIG,
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ERROR_PARSING,
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ERROR_TERM_COUNT,
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ERROR_TOKEN_POSITION,
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ERROR_VAR_DIFF,
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ERROR_SENTINEL, // last token not used, only for enum count
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} program_error;
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int stop_errors(program_error err, const char *format, ...);
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/** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* UTILS/PRINT_ENUMS.C
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*/
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const char *token_type_to_str(token_type type);
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const char *token_tag_to_str(token_tag tag);
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const char *term_position_to_str(term_position pos);
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const char *term_sign_to_str(term_sign sign);
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/** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* GLOBALS
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*/
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extern char *input_g_err;
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extern token *tokens_g_err;
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extern term *terms_g_err;
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#endif |