string_functions.c

#include "main.h"
/**
 * skp_space_percent - goto last space after percent
 * @s: string
 * Return: last space in string pointer if existed
 */
const char *skp_space_percent(const char *s)
{
	while (s && *s == ' ' && *(s + 1) == ' ')
		++s;
	return (s);
}
/**
* print_str - function prints string
* @args: list that contains the string
* @tag: s = normal string print - r = reverse string print
* Return: number of printed bytes of string
*/
int print_str(va_list args, char tag)
{
	char *str, rot13;
	int i, j;

	str = va_arg(args, char *);
	if (str == NULL)
		str = "(null)";

	if (tag == 's')
	{
		for (i = 0; str[i] != '\0'; i++)
			write(1, &str[i], 1);
	}
	else if (tag == 'r')
	{
		for (i = 0; str[i] != '\0'; i++)
			;

		for (j = i - 1; j >= 0; j--)
			write(1, &str[j], 1);
	}
	else if (tag == 'R')
	{
		for (i = 0; str[i] != '\0'; i++)
		{
			if (str[i] >= 'a' && str[i] <= 'z')
				rot13 = (str[i] + 13) <= 'z' ? (str[i] + 13) : (str[i] + 13) % 123 + 97;
			else if (str[i] >= 'A' && str[i] <= 'Z')
				rot13 = (str[i] + 13) <= 'Z' ? (str[i] + 13) : (str[i] + 13) % 91 + 65;
			else
				rot13 = str[i];
			write(1, &rot13, 1);
		}
	}
	return (i);
}
/**
* print_custom_str - function prints custom conversion specifier string
* @args: list that contains the string
* Return: number of printed bytes of string
*/
int print_custom_str(va_list args)
{
char *str;
int res = 0;
str = va_arg(args, char *);
	if (str == NULL)
		str = "(null)";
while (*str != '\0')
{
if (*str < ' ' || *str >= 127)
{
	res += write(1, "\\x", 2);
	res += write(1, "0123456789ABCDEF" + ((*str >> 4) & 0xF), 1);
	res += write(1, "0123456789ABCDEF" + (*str & 0xF), 1);
}
else
{
	res += write(1, str, 1);
}
	str++;
}
return (res);
}