92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_printf.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: apommier <apommier@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2021/11/10 22:22:43 by apommier #+# #+# */
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/* Updated: 2021/11/17 17:05:48 by apommier ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "ft_printf.h"
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int set_type(char type, va_list *ap)
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{
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int printed;
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printed = 0;
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if (type == 'c')
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printed += ft_putchar_fd(va_arg(*ap, int), 1);
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else if (type == 's')
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printed += ft_putstr_fd(va_arg(*ap, char *), 1);
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else if (type == 'd' || type == 'i' || type == 'u')
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printed += ft_putnbr_fd(va_arg(*ap, long), type, &printed);
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else if (type == 'x' || type == 'X')
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printed += ft_putnbr_hex((long)va_arg(*ap, long), type, &printed);
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else if (type == 'p')
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{
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ft_putstr_fd("0x", 1);
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printed += ft_putpointer((long)va_arg(*ap, void *), type, &printed) + 2;
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}
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else if (type == '%')
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printed += ft_putchar_fd('%', 1);
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return (printed);
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}
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int ft_putpointer(unsigned long nbr, char type, int *i)
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{
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if (nbr >= 16)
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ft_putpointer(nbr / 16, type, i);
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if ((nbr % 16) < 10)
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ft_putchar_fd(nbr % 16 + '0', 1);
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else if (type == 'x' || type == 'p')
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ft_putchar_fd(nbr % 16 - 10 + 'a', 1);
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else if (type == 'X')
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{
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ft_putchar_fd(nbr % 16 - 10 + 'A', 1);
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}
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(*i)++;
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return (0);
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}
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int next_char(const char *format, int i)
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{
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int printed;
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printed = 0;
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while (format[i] != '\0' && format[i] != '%')
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{
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write(1, &format[i], 1);
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i++;
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printed ++;
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}
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return (printed);
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}
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int ft_printf(const char *format, ...)
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{
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int i;
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int j;
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int printed;
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va_list ap;
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printed = 0;
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i = 0;
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va_start(ap, format);
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while (format[i] > '\0')
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{
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j = next_char(format, i);
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printed += j;
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i += j;
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if (format[i] == '%')
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{
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printed += set_type(format[i + 1], &ap);
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i += 2;
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}
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}
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va_end(ap);
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return (printed);
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}
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