printf/_printf.c at master · WNota/printf · GitHub

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#include"main.h"
/**
 * _printf - custom printf function
 * @format: the output string format
 * @...: variable arguments to be printed
 * Description: prints all passed arguments in a specific format
 * just like the standard printf does.
 * Return: integer - the count of the printed characters (-1 for error)
 */
int_printf(constchar*format, ...)
{
intcount=0;
va_listargs;

va_start(args, format); /* initializes the va_list */
if (!format) /* check if format is valid */
return (-1);
if (!format[0]) /* check if format is empty */
return (0);
while (*format) /* go through every format character */
	{
if (*format=='%') /* placeholder is encountred */
 {
format++; /* move pointer to the next character */
if (*format=='\0'&&count==0) /* format == "%" case */
return (-1);
if (*format=='%') /* other % encountered */
count+=_putchar('%');
/* call the right handler function */
elseif (get_handler_func(*format) !=NULL)
count+=get_handler_func(*format)(args);
else/* none specified placeholder OR end of format string \0 */
 {
/* in both cases print % */
count+=_putchar('%');

if (*format!='\0') /* print the none specified placeholder */
count+=_putchar(*format);
else/* exit loop if format string equal null termination */
break;
 }
format++;
 }
else/* not a placeholder */
 {
count+=_putchar(*format);
format++;
 }
	}
va_end(args);
return (count);
}