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ft_printf_e.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_printf_e.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: apuchill <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/05/21 23:55:34 by apuchill #+# #+# */
/* Updated: 2020/05/30 15:57:30 by apuchill ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_printf.h"
static char *fill_nbr_0s(char *nbr, int precision)
{
char str[precision + 3];
char *a;
size_t strlen;
int i;
strlen = ft_strlen(nbr);
if (precision == 0)
ft_strlcpy(str, nbr, 2);
else
{
ft_strlcpy(str, nbr, strlen + 1);
i = strlen;
while (i <= precision + 1)
str[i++] = '0';
str[i] = '\0';
}
a = ft_strdup(str);
return (a);
}
static t_flags get_0nbr_e_verifs(t_flags fl, int *j)
{
*j = 1;
while (fl.d[++(*j)] != '\0')
{
if ((ft_strchr_01("123456789", fl.d[*j])) == 1)
break ;
}
free(fl.d);
fl.d = ft_ftoa_rnd(fl.f, (*j - 1) + fl.precision, 5);
*j = 1;
while (fl.d[++(*j)] != '\0')
{
if (fl.d[*j] == '0')
{
fl.d[*j] = '.';
fl.d[(*j) - 1] = '0';
}
else if ((fl.d[*j - 1] = fl.d[*j]))
{
fl.d[*j] = '.';
break ;
}
}
fl.e_nbr = -((*j) - 1);
fl.tmp = ft_substr(fl.d, (*j) - 1, ft_strlen(fl.d) - ((*j) - 1));
return (fl);
}
static t_flags get_0nbr_e(t_flags fl, int *j)
{
ft_strlcpy(fl.e, "e-", 3);
fl.size = 1;
fl.d = ft_ftoa_rnd(fl.f, fl.size, 5);
*j = 1;
while (fl.d[++(*j)] != '\0' && *j <= 18)
{
if ((fl.size++) && (ft_strchr_01("123456789", fl.d[*j])) == 1)
break ;
free(fl.d);
fl.d = ft_ftoa_rnd(fl.f, fl.size, 5);
}
if (*j > 18 && (fl.e[1] = '+'))
{
free(fl.d);
fl.d = fill_nbr_0s("0.", fl.precision);
return (fl);
}
fl = get_0nbr_e_verifs(fl, j);
free(fl.d);
if (ft_strlen(fl.tmp) >= fl.strlen)
fl.d = ft_substr(fl.tmp, 0, fl.strlen);
else
fl.d = fill_nbr_0s(fl.tmp, fl.precision);
free(fl.tmp);
return (fl);
}
static t_flags get_nbr_e(t_flags fl, unsigned long long int i_part, int *j)
{
ft_strlcpy(fl.e, "e+", 3);
while (i_part /= 10)
fl.e_nbr++;
fl.d = ft_ftoa_rnd((fl.f / ft_pow(10, fl.e_nbr)), fl.precision, 5);
*j = ft_strlen(fl.d);
while (--(*j) >= 0)
{
if (fl.d[*j] == '.' && *j >= 2)
{
fl.d[*j] = fl.d[(*j) - 1];
fl.d[(*j) - 1] = '.';
}
}
if (ft_strlen(fl.d) > fl.strlen)
{
fl.tmp = ft_substr(fl.d, 0, fl.strlen);
fl.e_nbr += ft_strlen(fl.d) - fl.strlen;
free(fl.d);
fl.d = fl.tmp;
}
return (fl);
}
t_flags print_spec_e(t_flags fl, double n)
{
int j;
fl.f = (n >= 0) ? n : -n;
fl.ulli = fl.f;
fl.e_nbr = 0;
fl.strlen = (fl.precision > 0) ? (size_t)fl.precision + 2 : 1;
if (fl.ulli > 0)
fl = get_nbr_e(fl, fl.ulli, &j);
else
fl = get_0nbr_e(fl, &j);
fl.tmp = ft_ullitoa_base(((fl.e_nbr > 0) ? fl.e_nbr : -fl.e_nbr), DIGITS);
if ((ft_strlen(fl.tmp)) == 1 && (ft_strlcat(fl.e, "0", 4)))
ft_strlcat(fl.e, fl.tmp, 5);
else
ft_strlcat(fl.e, fl.tmp, 5);
free(fl.tmp);
if (fl.hash == 1 && fl.point == 1 && fl.precision == 0)
{
fl.tmp = ft_strjoin(fl.d, ".");
free(fl.d);
fl.d = fl.tmp;
}
fl.a = ft_strjoin(fl.d, fl.e);
return (fl);
}