libft/ft_printf_tools_wchar_t.c
vagrant 13d96a14d8 finally \o/
added ft_printf to libft
finalised ans tested ft_getline
2019-03-07 22:29:34 +00:00

114 lines
3.1 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* tools_wchar_t.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: klebon <klebon@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2018/05/18 18:10:11 by klebon #+# #+# */
/* Updated: 2019/03/07 22:25:11 by tmaze ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
/*
** I have to handle minus, width
*/
void ft_align_wchar(char *str, t_conv *field)
{
int i;
int len;
len = (int)ft_strlen(str);
len = (len) ? len : 1;
if (len < field->str_size)
{
if (field->fl_minus == 1)
{
i = 1;
while (str[i])
++i;
while (i < field->str_size)
str[i++] = ' ';
}
else
{
i = 0;
ft_memmove(str + (field->str_size - len), str, len);
while (i < field->str_size - len)
str[i++] = (field->fl_zero) ? '0' : ' ';
}
}
}
char *handler_2oct_char(wint_t c, t_conv *field)
{
char *output;
field->str_size = (field->fl_witdth > 2) ? field->fl_witdth : 2;
if (!(output = ft_strnew(field->str_size)))
return (NULL);
output[0] = (c >> 6) + 0xC0;
output[1] = (c & 0x3F) + 0x80;
ft_align_wchar(output, field);
return (output);
}
char *handler_3oct_char(wint_t c, t_conv *field)
{
char *output;
field->str_size = (field->fl_witdth > 3) ? field->fl_witdth : 3;
if (!(output = ft_strnew(field->str_size)))
return (NULL);
output[0] = (c >> 12) + 0xE0;
output[1] = ((c >> 6) & 0x3F) + 0x80;
output[2] = (c & 0x3F) + 0x80;
ft_align_wchar(output, field);
return (output);
}
char *handler_4oct_char(wint_t c, t_conv *field)
{
char *output;
field->str_size = (field->fl_witdth > 4) ? field->fl_witdth : 4;
if (!(output = ft_strnew(field->str_size)))
return (NULL);
output[0] = (c >> 18) + 0xF0;
output[1] = ((c >> 12) & 0x3F) + 0x80;
output[2] = ((c >> 6) & 0x3F) + 0x80;
output[3] = (c & 0x3F) + 0x80;
ft_align_wchar(output, field);
return (output);
}
char *handle_output_wchar(t_conv *field, va_list ap)
{
char *output;
wint_t c;
c = (wint_t)va_arg(ap, wint_t);
if (c < 0 || (MB_CUR_MAX == 1 && c > 0xFF) || (c >= 0xD800 && c <= 0xDFFF))
return (NULL);
else if (c <= 0x7F || (MB_CUR_MAX == 1 && c <= 0xFF))
{
field->str_size = (field->fl_witdth > 1) ? field->fl_witdth : 1;
if (!(output = ft_strnew(field->str_size)))
return (NULL);
output[0] = (char)c;
ft_align_wchar(output, field);
}
else if (c <= 0x7FF)
output = handler_2oct_char(c, field);
else if (c <= 0xFFFF)
output = handler_3oct_char(c, field);
else if (c <= 0x10FFFF)
output = handler_4oct_char(c, field);
else
return (NULL);
return (output);
}