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tomoron
2024-12-02 12:32:14 +01:00
commit 60acac0231
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67
libft/ft_printf/ft_printf.c Executable file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_printf.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: tomoron <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/02 23:41:38 by tomoron #+# #+# */
/* Updated: 2023/11/08 14:51:19 by tomoron ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_printf.h"
int ft_check_placeholders(const char *str)
{
int err;
err = 0;
while (*str)
{
while (*str && *str != '%')
str++;
if (*str == '%')
{
str++;
while (*str == '-' || *str == '0' || *str == '#'
|| *str == ' ' || *str == '+' || ft_isdigit(*str))
str++;
if (*str != 'c' && *str != 's' && *str != 'p' && *str != 'd'
&& *str && *str != 'i' && *str != 'u' && *str != 'x'
&& *str != 'X' && *str != '%')
err = 1;
if (!*str && err == 0)
err = 2;
if (*str == '%')
str++;
}
}
return (err);
}
int ft_printf(const char *str, ...)
{
va_list args;
size_t res;
char *s;
int err;
if (!str)
return (-1);
va_start(args, str);
res = 0;
s = (char *)str;
err = ft_check_placeholders(s);
res += ft_write_str_part(&s);
while (*s)
{
res += ft_parse_arg(&s, args, &err);
if (err == 3)
break ;
res += ft_write_str_part(&s);
}
va_end(args);
if (err >= 2)
return (-1);
return (res);
}