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pf_parse_modifier.c
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pf_parse_modifier.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* pf_parse_modifier.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: mg <mg@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/06/02 14:11:52 by mg #+# #+# */
/* Updated: 2020/06/23 22:06:14 by mg ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_printf.h"
void pf_parse_flag(const char *format, t_fmt *flag, char *end)
{
while (format < end && *format != '.')
{
if (*format == '\'')
flag->group = 1;
if (*format == '-')
flag->left = 1;
if (*format == '+')
flag->showsign = 1;
if (*format == ' ')
flag->space = 1;
if (*format == '#')
flag->alt = 1;
++format;
}
}
/*
** pf_parse_width
** function parse the width and zero padding from the format string
*/
void pf_parse_width(const char *format, t_fmt *flag, char *end, va_list *ap)
{
char *nbr;
char *ptr;
int nbrx;
nbr = ft_strnew(0);
while (format < end && *format != '.')
{
if (*format == '*' && (*(format + 1) == '.' || (format + 1) == end))
{
nbrx = va_arg(*ap, int);
nbrx < 0 ? flag->left = 1 : 0;
ptr = ft_itoa(ft_abs(nbrx));
ft_strappend_xx(&nbr, &ptr);
}
else if (ft_isdigit(*format))
ft_strappend_xo_chr(&nbr, *format);
++format;
}
if (nbr)
flag->width = atoi(nbr);
if (*nbr == 48)
flag->pad = 1;
ft_strdel(&nbr);
}
void pf_parse_precision(const char *format, t_fmt *flag, char *end,
va_list *ap)
{
int nbrx;
while (format < end)
{
if (*format == '.')
{
if (*(format + 1) == '*')
{
nbrx = va_arg(*ap, int);
if (nbrx < 0 && pf_is_float_spec(flag->spec, flag))
flag->precision = 6;
else if (nbrx < 0)
flag->precision = -1;
else
flag->precision = ft_abs(nbrx);
}
else if ((format + 1) != end)
flag->precision = ft_atoi(format + 1);
else
flag->precision = 0;
}
++format;
}
}
void pf_parse_length(t_fmt *flag, char *end)
{
char *length_flag;
length_flag = end - 1;
if (*length_flag == 'h')
{
flag->length = 'h';
if (*(length_flag - 1) == 'h')
flag->is_char = 1;
}
else if (*length_flag == 'l')
{
flag->length = 'l';
if (*(length_flag - 1) == 'l')
flag->is_llong = 1;
}
else if (*length_flag == 'j')
flag->length = 'j';
else if (*length_flag == 'z')
flag->length = 'z';
else if (*length_flag == 't')
flag->length = 't';
else if (*length_flag == 'L')
flag->length = 'L';
}
void pf_parse_base(t_fmt *flag)
{
if (flag->spec == 'o')
flag->base = 8;
else if (flag->spec == 'x' || flag->spec == 'X')
flag->base = 16;
else if (flag->spec == 'a' || flag->spec == 'A')
flag->base = 16;
else if (flag->spec == 'p')
flag->base = 16;
else
flag->base = 10;
}