ft_printf/convert_d_i.c
2018-05-05 19:46:25 +02:00

85 lines
2.3 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* convert_d_i.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: tmaze <tmaze@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2018/05/05 19:17:53 by tmaze #+# #+# */
/* Updated: 2018/05/05 19:40:49 by tmaze ### ########.fr */
/* */
/* ************************************************************************** */
#include "libftprintf.h"
char *apply_precision_d(char *s, int prec)
{
char *ret;
char *tmp;
int nb_fill;
nb_fill = prec - ft_strlen(s);
if ((ret = ft_strsub(s, 0, prec)) == NULL)
return (NULL);
ft_strdel(&s);
if (nb_fill > 0 && (s = ft_strnew(nb_fill)) != NULL)
{
ft_memset(s, '0', nb_fill);
tmp = ft_strjoin(s, ret);
ft_strdel(&s);
ft_strdel(&ret);
ret = tmp;
tmp = NULL;
}
ft_strdel(&tmp);
return (ret);
}
char *apply_width_d(char *s, int width, char align)
{
char *add;
char *tmp;
if ((add = ft_strnew(width - ft_strlen(s))) == NULL)
return (NULL);
ft_memset(add, ' ', width - ft_strlen(s));
if (align == '-')
{
tmp = add;
add = s;
s = tmp;
}
tmp = ft_strjoin(add, s);
ft_strdel(&add);
ft_strdel(&s);
return (tmp);
}
char *convert_d_i(char *flags, int *dim, int nb)
{
char *ret;
char *tmp;
char *atoi;
int atoi_len;
atoi = ft_itoa(ft_abs(nb));
atoi_len = ft_strlen(atoi);
if (dim[1] > atoi_len)
tmp = apply_precision_d(atoi, dim[1]);
else
tmp = atoi;
atoi = ft_strnew((((flags[1] == '+' || flags[1] == ' ') && nb >= 0) || nb < 0) ? 1 : 0);
if (flags[1] == '+' && nb >= 0)
atoi[0] = '+';
else if (flags[1] == ' ' && nb >= 0)
atoi[0] = ' ';
else if (nb <= 0)
atoi[0] = '-';
ret = ft_strjoin(atoi, tmp);
ft_strdel(&atoi);
ft_strdel(&tmp);
if ((size_t)dim[0] > ft_strlen(ret))
ret = apply_width_d(ret, dim[0], flags[0]);
return (ret);
}