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Thomas Rieg 2025-11-28 19:50:58 +01:00
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libft/ft_printf/ft_printf.c Executable file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_printf.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: thrieg <thrieg@student.42mulhouse.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/10/21 18:24:04 by thrieg #+# #+# */
/* Updated: 2025/02/16 19:08:03 by thrieg ### ########.fr */
/* */
/* ************************************************************************** */
#include "../libft.h"
#include "ft_printf.h"
int ft_case_c(t_vector *vec, va_list *args);
int ft_case_percent(t_vector *vec);
int ft_case_s(t_vector *vec, va_list *args);
int ft_case_p(t_vector *vec, va_list *args);
int ft_case_u(t_vector *vec, va_list *args);
int ft_case_x(t_vector *vec, va_list *args);
int ft_case_upperx(t_vector *vec, va_list *args);
int ft_case_d(t_vector *vec, va_list *args);
int ft_case_i(t_vector *vec, va_list *args);
int handle_percent_bonus(const char *str, t_vector *vec, va_list *args);
//properly frees the vector and return string
void ft_cleanup(t_vector **vec, va_list *args)
{
ft_free_vector(vec);
va_end(*args);
}
//returns the number of characters to skip after the % sign
//or 0 if something goes wrong
int handle_percent(const char *str, t_vector *vec, va_list *args)
{
if (str[0] == '%' && str[1] == 'c')
return (ft_case_c(vec, args));
if (str[0] == '%' && str[1] == '%')
return (ft_case_percent(vec));
if (str[0] == '%' && str[1] == 's')
return (ft_case_s(vec, args));
if (str[0] == '%' && str[1] == 'p')
return (ft_case_p(vec, args));
if (str[0] == '%' && str[1] == 'u')
return (ft_case_u(vec, args));
if (str[0] == '%' && str[1] == 'x')
return (ft_case_x(vec, args));
if (str[0] == '%' && str[1] == 'X')
return (ft_case_upperx(vec, args));
if (str[0] == '%' && (str[1] == 'd'))
return (ft_case_d(vec, args));
if (str[0] == '%' && (str[1] == 'i'))
return (ft_case_i(vec, args));
return (handle_percent_bonus(str, vec, args));
}
static int ft_parsing_loop(
t_vector *return_vector,
const char *str,
va_list *args
)
{
char *next_percent;
int nb_character;
while (*str)
{
next_percent = ft_strchr(str, '%');
if (!next_percent)
{
next_percent = ft_strchr(str, '\0');
if (!ft_vector_concat(return_vector, str, (next_percent - str)))
return (0);
return (1);
}
if (!ft_vector_concat(return_vector, str, (next_percent - str)))
return (0);
str = next_percent;
nb_character = handle_percent(str, return_vector, args);
if (!nb_character)
return (0);
str += nb_character;
str++;
}
return (1);
}
//returns the number of characters written or -1 on errors
int ft_printf(const char *str, ...)
{
int nb_character;
t_vector *return_vector;
va_list args;
if (!str)
return (-1);
va_start(args, str);
return_vector = ft_create_vector(2);
if (!return_vector)
return (-1);
if (!ft_parsing_loop(return_vector, str, &args))
return (ft_cleanup(&return_vector, &args), -1);
nb_character = write(1, return_vector->buffer, return_vector->index);
return (ft_cleanup(&return_vector, &args), nb_character);
}
//returns the number of characters written or -1 on errors
int ft_dprintf(int fd, const char *str, ...)
{
int nb_character;
t_vector *return_vector;
va_list args;
if (!str)
return (-1);
va_start(args, str);
return_vector = ft_create_vector(2);
if (!return_vector)
return (-1);
if (!ft_parsing_loop(return_vector, str, &args))
return (ft_cleanup(&return_vector, &args), -1);
nb_character = write(fd, return_vector->buffer, return_vector->index);
return (ft_cleanup(&return_vector, &args), nb_character);
}