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#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
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