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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_printf_treat_flags.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rbousset <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/14 17:06:45 by rbousset #+# #+# */
/* Updated: 2020/02/14 17:06:45 by rbousset ### ########lyon.fr */
/* */
/* ************************************************************************** */
#include <libft.h>
#include <stdlib.h>
#include <stdarg.h>
static int
ft_printf_get_width(va_list arg, t_printflist *pflist)
{
char *nstr;
char *nstr_ptr;
int ret;
if (ft_strlchr(pflist->fullflag, '.') >= 0)
nstr = ft_substr(pflist->fullflag, 0,
ft_strlchr(pflist->fullflag, '.'));
else
nstr = ft_strdup(pflist->fullflag);
nstr_ptr = nstr;
nstr = ft_printf_get_width_nstr(nstr, pflist);
ret = ft_printf_fetch_width(arg, nstr, pflist);
ft_memdel((void**)&nstr_ptr);
(ret < 0) ? (pflist->isreverse = 1) : 0;
(ret < 0) ? (ret = -ret) : 0;
return (ret);
}
static int
ft_printf_get_precision(va_list arg, int pos, t_printflist *pflist)
{
int ret;
char *ptr;
ptr = pflist->fullflag;
if (pflist->isaz && ft_strlchr(pflist->fullflag, '+') >= 0)
{
pflist->isaplus = 1;
if (ft_strlen(ptr) < pflist->flaglen)
ptr += 1;
}
if (*(ptr + pos + 1) == '*')
{
ret = va_arg(arg, int);
(ret < 0) ? (ret = 0) : 0;
return (ret);
}
else
ret = ft_atoi(ptr + pos + 1);
if (ret == 0)
return (-1);
return (ret);
}
/*
** Corresponding l ll hh h
** in pflist->lh
** hh = -2
** h = -1
** l = 1
** ll = 2
*/
static void
ft_printf_get_lh(t_printflist *pflist)
{
int pos;
if ((pos = ft_strlchr(pflist->fullflag, 'z')) >= 0)
pflist->zflag = 1;
else if ((pos = ft_strlchr(pflist->fullflag, 'l')) >= 0)
{
if (pos + 2 <= (int)pflist->flaglen &&
*(pflist->fullflag + pos + 1) == 'l')
pflist->lh = 2;
else
pflist->lh = 1;
}
else if ((pos = ft_strlchr(pflist->fullflag, 'h')) >= 0)
{
if (pos + 2 <= (int)pflist->flaglen &&
*(pflist->fullflag + pos + 1) == 'h')
pflist->lh = -2;
else
pflist->lh = -1;
}
}
static uint8_t
ft_printf_check_z(t_printflist *pflist)
{
char *ptr;
ptr = pflist->fullflag;
while (!ft_isdigit(*ptr) && *ptr)
ptr++;
if ((ptr - pflist->fullflag) <= (long)ft_strlen(pflist->fullflag)
&& (*ptr == '0') && ft_strlchr(pflist->fullflag, '.') < 0)
return (1);
return (0);
}
/*
** Uses pflist->fullflag to put
** width and precision in the list
** also l ll hh h
*/
void
ft_printf_treat_flags(va_list arg, t_printflist *pflist)
{
int pos;
char c;
pflist->flaglen = ft_strlen(pflist->fullflag);
if (((pflist->isaz = ft_printf_check_z(pflist)) == 1
&& ft_strlchr(pflist->fullflag, '.') < 0
&& ft_strlchr(pflist->fullflag, '-') < 0))
pflist->precision = ft_printf_get_precision(arg, 0, pflist);
else
{
pflist->width = ft_printf_get_width(arg, pflist);
(pflist->isaspace >= 0) ? (pflist->isaspace = 1) : 0;
if ((pos = ft_strlchr(pflist->fullflag, '.')) >= 0)
pflist->precision = ft_printf_get_precision(arg, pos, pflist);
}
(pflist->isaz && pflist->width) ? (pflist->isaz = 0) : 0;
(ft_strlchr(pflist->fullflag, '#') >= 0) ? (pflist->issharp = 1) : 0;
c = pflist->actconv;
if (ft_strlchr(pflist->fullflag, '.') < 0 && pflist->isaz
&& pflist->precision < 0 && c != 'c' && c != 's' && c != '%')
{
pflist->precision = 0;
pflist->isaz = 0;
}
ft_printf_get_lh(pflist);
}
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