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