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

typedef struct
{
    int is_letter;
    int number;
    char letter;
} Character;

static void Chomp(char *p)
{
    size_t l = strlen(p);

    while (l && p[l-1] == '\n')
    {
    	p[--l] = 0;
    }
}

static void Error(const char *p)
{
    perror(p);
    exit(EXIT_FAILURE);
}

int main(int argc, char *argv[])
{
    int no_chars;
    Character *chars;
    int f;
    FILE *fp;
    char buff[1024];

    if (argc < 3)
    {
    	fprintf(stderr, "usage: %s wordlist <letter or number> ...\n", argv[0]);
	exit(EXIT_FAILURE);
    }

    no_chars = argc - 2;
    chars = malloc(sizeof *chars * no_chars);

    if (!chars)
    {
    	Error("malloc");
    }

    for(f = 0; f < no_chars; f++)
    {
    	int i;

	i = atoi(argv[f+2]);

	if (i == 0)
	{
	    chars[f].is_letter = 1;
	    chars[f].letter = argv[f+2][0];
	    chars[f].number = 0;
	}
	else
	{
	    chars[f].is_letter = 0;
	    chars[f].number = i;
	    chars[f].letter = 0;
	}
    }

    fp = fopen(argv[1], "r");

    if (!fp)
    {
    	Error(argv[1]);
    }

    while(fgets(buff, sizeof buff, fp))
    {
    }

    return EXIT_SUCCESS;
}