printf/int _printf(const char *format, ...cpp at main · khalid1sey/printf · GitHub

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int _printf(const char *format, ...)
{
    conversion_specifier conversion_table[] = {
        {"%s", print_string}, {"%c", print_char}, {"%%", print_37},
        {"%i", print_int}, {"%d", print_decimal}, {"%b", print_binary},
        {"%u", print_unsigned}, {"%o", print_oct}, {"%x", print_lower_hexa},
        {"%X", print_upper_hexa}, {"%p", print_pointer},
        {"%S", print_string_with_escape}
    };

    int i = 0, length = 0;
    int j;

    va_list args;

    va_start(args, format);
    if (format == NULL || (format[0] == '%' && format[1] == '\0'))
        return (-1);

    while (format[i] != '\0')
    {
        if (format[i] == '%')
        {
            bool flag_plus = false;
            bool flag_space = false;
            bool flag_hash = false;

            i++;
            while (format[i] == '+' || format[i] == ' ' || format[i] == '#')
            {
                if (format[i] == '+')
                    flag_plus = true;
                else if (format[i] == ' ')
                    flag_space = true;
                else if (format[i] == '#')
                    flag_hash = true;

                i++;
            }

            j = 10;
            while (j >= 0)
            {
                if (conversion_table[j].specifier[0] == format[i] &&
                    conversion_table[j].specifier[1] == format[i + 1])
                {
                    length += handle_plus_flag(flag_plus, handle_space_flag(flag_space, handle_hash_flag(flag_hash, conversion_table[j].fptr(args))));
                    i = i + 2;
                    break;
                }
                j--;
            }

            if (j >= 0)
                continue;
        }

        _putchar(format[i]);
        length++;
        i++;
    }
    va_end(args);
    return (length);
}