71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
// error codes
|
||
|
|
#define ERR_BADFUNCTION -1
|
||
|
|
#define ERR_BADNUMER -2
|
||
|
|
#define ERR_GENERAL -3
|
||
|
|
#define ERR_NOBRACKET -4
|
||
|
|
#define ERR_BADVARIABLE -5
|
||
|
|
#define ERR_OVERFLOW -6
|
||
|
|
#define ERR_BADPARAM -7
|
||
|
|
|
||
|
|
typedef double variable_callback(char *s);
|
||
|
|
|
||
|
|
void set_exp(char *exp);
|
||
|
|
// puts the token back to line
|
||
|
|
void putback(double *hold);
|
||
|
|
// gets the expression. This function is used externally
|
||
|
|
int get_exp(double *hold);
|
||
|
|
|
||
|
|
// logic binary
|
||
|
|
void level1(double *hold);
|
||
|
|
|
||
|
|
// unary !
|
||
|
|
void level1_5(double *hold);
|
||
|
|
|
||
|
|
// works with +-
|
||
|
|
void level2(double *hold);
|
||
|
|
// works with */%
|
||
|
|
void level3(double *hold);
|
||
|
|
// works with ^
|
||
|
|
void level4(double *hold);
|
||
|
|
// works with ()
|
||
|
|
void level5(double *hold);
|
||
|
|
// works with elementary tokens
|
||
|
|
void level6(double *hold);
|
||
|
|
// gets value of number, function or variable
|
||
|
|
void primitive(double *hold);
|
||
|
|
// performs arithmetical operation
|
||
|
|
void arith(char op, double *r, double *h);
|
||
|
|
|
||
|
|
void logic(char *op, double *r, double *h);
|
||
|
|
|
||
|
|
|
||
|
|
// performs unary (one-operand) operation
|
||
|
|
void unary(char op, double *r);
|
||
|
|
// gets variable value by name
|
||
|
|
extern variable_callback *find_var;
|
||
|
|
|
||
|
|
extern double rand_seed;
|
||
|
|
|
||
|
|
// stops execution of parser and return error code
|
||
|
|
void serror(int code);
|
||
|
|
// checks the function table to see if such a function exists
|
||
|
|
int look_up(char *s);
|
||
|
|
|
||
|
|
bool strcmp(char *s1, char *s2);
|
||
|
|
bool strncmp(char *s1, char *s2, int n);
|
||
|
|
|
||
|
|
extern double epsilon;
|
||
|
|
|
||
|
|
|
||
|
|
int isdelim(char c);
|
||
|
|
int isdigit(char c);
|
||
|
|
int isalpha2(char c);
|
||
|
|
int iswhite(char c);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|