#include <parcel.h>
#include <tokenizer.h>
#include <ast.h>

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

char * load_file(char *path, long *len)
{
    FILE       *file            = fopen(path, "r");
    if(file == NULL)
    {
        printf("Failed opening file at '%s'\n", path);
        return NULL;
    }
    
    fseek(file, 0, SEEK_END);
    long        length          = ftell(file);
    fseek(file, 0, SEEK_SET);
    
    char       *content         = malloc(length+1);
    content[length]             = 0x00;
    fread(content, 1, length, file);

    if(len != NULL)
    {
        (*len)          = length;
    }
    
    fclose(file);
    return content;
}

int main(int argc, char **argv)
{
    if(argc != 2)
    {
        printf("Usage: %s <filename>\n", argv[0]);
        return -1;
    }
    long            len_source;
    char           *source          = load_file(argv[1], &len_source);
    if(source == NULL)
    {
        puts("Stopping due to previous error!");
        return -2;
    }
    pac_tlist_s     tokens          = pac_tokenize_grammar(source, len_source);
    pac_display_tlist(tokens);
    
    return 0;
}