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custom_funcs.c
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custom_funcs.c
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#include "holberton.h"
/**
* pr_binary - prints the binary representation of an unsigned int
* @ap: list of variadic input
* @mask: indicates flags
* @width: field width (spacing)
* @precis: precision (digits)
*
* Return: length of the binary
*/
int pr_binary(va_list ap, __attribute__((unused))int mask,
__attribute__((unused))int width,
__attribute__((unused))int precis)
{
unsigned int b_mask = 1;
unsigned int n = va_arg(ap, unsigned int);
char buf[MAX_INDEX_INT + 2];
char *ptr = buf;
b_mask = b_mask << (MAX_INDEX_INT - 1);
while ((b_mask & n) == 0 && b_mask > 1)
b_mask = b_mask >> 1;
while (b_mask > 0)
{
if ((b_mask & n) > 0)
*ptr = '1';
else
*ptr = '0';
b_mask = b_mask >> 1;
ptr++;
}
ptr = '\0';
return (write(STDOUT_FILENO, buf, _strlen(buf)));
}
/**
* pr_ascii_of_non_printing - prints the ascii value of non-printing characters
* e.g. newline, tab
* @ap: list of variadic input
* @mask: indicates flags
* @width: field width (spacing)
* @precis: precision (digits)
*
* Return: length of value printed (plus 2 for "0x")
*/
int pr_ascii_of_non_printing(va_list ap, __attribute__((unused))int mask,
__attribute__((unused))int width,
__attribute((unused))int precis)
{
char *str = va_arg(ap, char *);
char *holder = str;
char *buf;
int write_len = 0;
int i;
int total_len = 0;
while (*str != '\0')
{
if ((*str > 0 && *str < 32) || *str >= 127)
{
if (holder < str)
{
i = write(STDOUT_FILENO, holder, write_len);
if (i != -1)
total_len += i;
holder = str;
write_len = 0;
while ((*holder > 0 && *holder < 32)
|| *holder >= 127)
holder++;
}
total_len += write(STDOUT_FILENO, "\\x", 2);
buf = hex_convert((unsigned int)*str, CAP);
if (_strlen(buf) == 0)
total_len += write(STDOUT_FILENO, "00", 2);
if (_strlen(buf) == 1)
total_len += write(STDOUT_FILENO, "0", 1);
total_len += write(STDOUT_FILENO, buf,
_strlen(buf));
free(buf);
}
else
write_len++;
str++;
}
return (total_len);
}
/**
* pr_rev - prints a string in reverse
* @ap: list of variadic input
* @mask: indicates flags
* @width: field width (spacing)
* @precis: precision (digits)
*
* Return: length of string
*/
int pr_rev(va_list ap, __attribute__((unused))int mask,
__attribute__((unused))int width, __attribute__((unused))int precis)
{
char *str = va_arg(ap, char *);
char *pr_str = rev_str(str);
int i = write(STDOUT_FILENO, pr_str, _strlen(pr_str));
free(pr_str);
return (i);
}
/**
* pr_rot13 - prints the rot13 encrypted version of a string
* @ap: list of variadic input
* @mask: indicates flags
* @width: field width (spacing)
* @precis: precision (digits)
*
* Return: length of string
*/
int pr_rot13(va_list ap, __attribute__((unused))int mask,
__attribute__((unused))int width, __attribute__((unused))int precis)
{
char *str = va_arg(ap, char *);
char *pr_str = rot_13(str);
int i = write(STDOUT_FILENO, pr_str, _strlen(pr_str));
free(pr_str);
return (i);
}