null
102 lines
2.9 KiB
C
102 lines
2.9 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* printf_fd.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: yantoine <yantoine@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/11/09 17:02:50 by yantoine #+# #+# */
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/* Updated: 2024/11/13 23:41:20 by yantoine ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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static int putstr(char *str, char c, int is_char, t_info *info)
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{
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int len;
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len = 0;
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if (is_char)
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return (write(info->fd, &c, 1));
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if (!str)
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str = "(null)";
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while (str[len])
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len++;
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return (write(info->fd, str, len));
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}
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static int putnbr_b(t_lu n, char *str, int numdig, t_info *info)
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{
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if (n > (t_lu)info->base - 1)
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numdig += putnbr_b(n / info->base, str, numdig, info);
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putstr(NULL, str[n % info->base], CHAR, info);
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return (++numdig);
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}
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static int treat_int(int n, char *str, int numdig, t_info *info)
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{
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int nb;
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long signal;
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info->base = 10;
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nb = n;
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signal = 1;
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if (nb < 0)
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putstr(0, '-', CHAR, info);
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signal = ((nb > 0) - (nb < 0));
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return ((n < 0) + putnbr_b(nb * signal, str, numdig, info));
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}
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static int format(const char *str, t_info *info, va_list *args)
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{
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if (str[info->i] == 'c')
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return (putstr(0, va_arg(*args, int), CHAR, info));
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if (str[info->i] == 's')
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return (putstr(va_arg(*args, char *), 0, STR, info));
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if (str[info->i] == 'd' || str[info->i] == 'i')
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return (treat_int(va_arg(*args, int), DEC, 0, info));
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if (str[info->i] == 'f')
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return (print_double_fd(va_arg(*args, double), info->fd));
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if (str[info->i] == 'u')
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{
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info->base = 10;
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return (putnbr_b((t_lu)va_arg(*args, t_ui), DEC, 0, info));
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}
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if (str[info->i] == 'x')
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return (putnbr_b((t_lu)va_arg(*args, t_ui), HEXLO, 0, info));
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if (str[info->i] == 'X')
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return (putnbr_b((t_lu)va_arg(*args, t_ui), HEXUP, 0, info));
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if (str[info->i] == '%')
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return (putstr(0, '%', CHAR, info));
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if (str[info->i] == 'p')
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return (putstr("0x", 0, CHAR, info) + putnbr_b(va_arg(*args, t_lu),
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HEXLO, 16, 0));
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return (0);
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}
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int printf_fd(int fd, const char *str, ...)
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{
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va_list args;
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t_info info;
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va_start(args, str);
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info.i = 0;
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info.counter = 0;
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info.base = 16;
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info.fd = fd;
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while (str[info.i])
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{
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if (str[info.i] == '%')
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{
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info.i++;
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info.counter += format(str, &info, &args);
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}
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else
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info.counter += putstr(0, str[info.i], CHAR, &info);
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info.i++;
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}
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va_end(args);
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return (info.counter);
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}
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