printf/getfunction.c at master · Fermec28/printf · GitHub

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#include "holberton.h"

/**
 * getfunction- selects the correct function to perform the operation
 * @format: Operator given
 *
 * Return: a pointer to the function that corresponds to the operator given
 */
int (*getfunction(const char format))(va_list, options)
{
	int i_struct = 0;
	op_t print[] = {
		{"c", print_char},
		{"i", print_integer},
		{"d", print_integer},
		{"f", print_float},
		{"s", print_string},
		{"x", print_hexa_lower_case},
		{"X", print_hexa_upper_case},
		{"o", print_octal},
		{"u", print_unsigned_integer},
		{"r", print_reverse_string},
		{"R", print_rot13},
		{NULL, NULL}
	};

	while (print[i_struct].op != NULL)
	{
		if (format == *(print[i_struct].op))
		{
			return (print[i_struct].f);
		}
		i_struct++;
	}
	return (NULL);
}

/**
 * str_length - calculate length
 * @str: strint to calculate length
 * Return: length of array
 */
unsigned int str_length(char *str)
{
	unsigned int iterator = 0;

	while (str[iterator])
		iterator++;
	return (iterator);
}


/**
 * print_integer - print integer
 * @valist: valist
 * @opt: option to print
 * Return: count of bytes printed
 */
int print_integer(va_list valist, options opt)
{
	char *str;
	char flag;
	int bytes = 0;

	str = number_to_string(va_arg(valist, int), 10);
	if (str == NULL)
	{
		return (_putchar("(null)", str_length("(null)")));
	}
	if (opt.signp == 1)
	{
		flag = '+';
		write(1,&flag,1);
		bytes++;
	}
	bytes += _putchar(str, str_length(str));
	free(str);
	return (bytes);
}

/**
 * print_string - print string
 * @valist: valist
 * @opt: option to print
* Return: count of bytes printed
 */
int print_string(va_list valist, options opt)
{
	char *str = va_arg(valist, char*);
	(void) opt;

	if (str == NULL)
	{
		return (_putchar("(null)", str_length("(null)")));
	}
	return (_putchar(str, str_length(str)));
}
/**
 * print_float - print float
 * @valist: valist
 * @opt: option to print
 * Return: count of bytes printed
 */
int print_float(va_list valist, options opt)
{
	char *str = va_arg(valist, char*);
	(void) opt;

	return (_putchar(str, str_length(str)));
}
/**
 * print_unsigned_integer - print unsigned integer
 * @valist: valist
 * @opt: option to print
* Return: count of bytes printed
 */
int print_unsigned_integer(va_list valist, options opt)
{
	char *str;
	int bytes = 0;
	(void) opt;

	str = unsigned_number_to_string(va_arg(valist, unsigned int), 10);
	if (str == NULL)
	{
		return (_putchar("(null)", str_length("(null)")));
	}
	bytes = _putchar(str, str_length(str));
	free(str);
	return (bytes);

}