printf/our_printf.c at master · cherishegoyibo/printf · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
#include "main.h"

void pr_buffer(char buffer[], int *b_index);

/**
 * _printf - prints formatted output
 * @format: pointer
 *
 * Return: number of characters
 */
int _printf(const char *format, ...)
{
 	int i, print = 0, pr_char = 0;
 	int flag, width, precision, size, b_index = 0, index = 0;
	va_list arg;
	char buffer[BUFF_SIZE];

	if (format == NULL)
		return (-1);

	va_start(arg, format);

	for (i = 0; format && format[i] != '\0'; i++)
	{
		if (format[i] != '%')
		{
			buffer[b_index++] = format[i];
			if (b_index == BUFF_SIZE)
				pr_buffer(buffer, &b_index);
			pr_char++;
		}
		else
		{
			pr_buffer(buffer, &b_index);
			flag = pr_flag(format, &index);
			width = pr_width(format, &index, arg);
			precision = pr_precision(format, arg, &index);
			size = pr_size(format, &index);
			++i;
			print = pull_print(format, &index, arg, buffer,
  					flag, width, size, precision);
			if (print == -1)
				return (-1);
			pr_char += print;
 		}
	}

	pr_buffer(buffer, &b_index);

	va_end(arg);

	return (pr_char);
}

/**
 * pr_buffer - print buffer
 * @buffer: array
 * @b_index: index
 */
void pr_buffer(char buffer[], int *b_index)
{
	*b_index = 0;

	if (*b_index > 0)
	write(1, &buffer[0], *b_index);
}