#ifndef GRAMMAR_H
#define GRAMMAR_H

#include <stddef.h> // size_t

enum precedence_flag {
    PRECEDENCE_LEFT_ASSOC,
    PRECEDENCE_RIGHT_ASSOC,
    PRECEDENCE_NO_ASSOC,
};

#define PRECEDENCE_NUM(prec) ((prec) >> 2)
#define PRECEDENCE_FLAG(prec) ((prec) & 0x3)

extern struct production {
    symbol LHS;
    symbol *RHS;
    size_t nRHS;
    unsigned int precedence;
} *grammar;

extern size_t total_productions;

#include <stdio.h>

void grammar_print()
{
    for(size_t i = 0; i < total_productions; i++) {
        printf("%d --> ", grammar[i].LHS);
        for(size_t j = 0; j < grammar[i].nRHS; j++)
            printf("%d ", grammar[i].RHS[j]);
        printf("\n");
    }
}
void grammar_print_cstyle()

{
    for(size_t i = 0; i < total_productions; i++) {
        printf("{%d, (symbol[]){", grammar[i].LHS);
        for(size_t j = 0; j < grammar[i].nRHS; j++)
            printf("%d, ", grammar[i].RHS[j]);
        printf("}, %zu, %d},\n", grammar[i].nRHS, grammar[i].precedence);
    }
}

#endif