#include <stdio.h>
#include <stdlib.h>

#include "lr-parser.c"
#include "bin/generated.c"

#include "parts/toklist.h"

enum symbol {
    PLUS = 0,
    MINUS,
    LPAREN,
    RPAREN,
    N0, N1,
    END_INPUT,

    EP, E, T, N,
    SYMBOLS_END,
};

static inline symbol char_to_token(char c)
{
    switch(c) {
    case '+': return PLUS;
    case '-': return MINUS;
    case '(': return LPAREN;
    case ')': return RPAREN;
    case '0': return N0;
    case '1': return N1;
    case  0 : return END_INPUT;
    default: fprintf(stderr, "ERROR: Unknown character '%c'\n", c); exit(1);
    }
}

static char *input;

symbol toklist_eat() { return char_to_token(*(input++)); } // unsafe
symbol toklist_peek() { return char_to_token(*input); }    // unsafe

int main(int argc, char **argv)
{
    if(argc != 2) {
        fprintf(stderr, "ERROR: Not enough arguments\n");
        return 1;
    }

    input = argv[1];

    printf("INPUT: '%s'\n", input);
    printf("OUTPUT: %d\n", lr_parser());
    return 0;
}