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


const char *usr_help_str = "./dfa2bin -regex [regex]";

typedef struct dfa{
    short int state : 1;
}dfa,*dfaPtr;

void checkAppearChar(unsigned char* regex, int regexLength){
    int charTable[256];

    for (int i = 0; i < regexLength; i++) {
        charTable[i] += 1;
    }

    for (int i = 0; i < 256; i++) {
        printf("charTable[%d] : %d\n",i,charTable[i]);
    }
}

void dfa2bin(unsigned char *regex){
    int regexLength = strlen((char*)regex);
    char *regexCharTable = (char*)malloc(sizeof(char)*regexLength);
    dfaPtr dfa = (dfaPtr)malloc(sizeof(dfa)*(regexLength+1));

    for (int i = 0; i < regexLength+1 ; i++) {
        dfa[i].state = 0;
    }

    dfa[0].state = 1;

    checkAppearChar(regex,regexLength);
}


int main(int argc, char *argv[]){

    unsigned char *regex = 0;

    for (int i = 1; argv[i]; ++i) {
        if (strcmp(argv[i], "-regex") == 0){
            regex = (unsigned char*)argv[i+1];
        }
    }

    if (regex == 0){
        puts(usr_help_str);
        exit(1);
    }

    dfa2bin(regex);

    printf("regex : %s\n",regex);
    return 0;
}