110 lines
3.0 KiB
C
110 lines
3.0 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* tools_wchar_t.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: klebon <klebon@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2018/05/18 18:10:11 by klebon #+# #+# */
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/* Updated: 2019/03/16 15:53:50 by tmaze ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "libft.h"
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void ft_align_wchar(char *str, t_conv *field)
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{
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int i;
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int len;
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len = (int)ft_strlen(str);
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len = (len) ? len : 1;
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if (len < field->str_size)
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{
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if (field->fl_minus == 1)
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{
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i = 1;
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while (str[i])
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++i;
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while (i < field->str_size)
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str[i++] = ' ';
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}
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else
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{
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i = 0;
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ft_memmove(str + (field->str_size - len), str, len);
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while (i < field->str_size - len)
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str[i++] = (field->fl_zero) ? '0' : ' ';
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}
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}
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}
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char *handler_2oct_char(wint_t c, t_conv *field)
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{
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char *output;
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field->str_size = (field->fl_witdth > 2) ? field->fl_witdth : 2;
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if (!(output = ft_strnew(field->str_size)))
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return (NULL);
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output[0] = (c >> 6) + 0xC0;
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output[1] = (c & 0x3F) + 0x80;
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ft_align_wchar(output, field);
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return (output);
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}
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char *handler_3oct_char(wint_t c, t_conv *field)
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{
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char *output;
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field->str_size = (field->fl_witdth > 3) ? field->fl_witdth : 3;
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if (!(output = ft_strnew(field->str_size)))
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return (NULL);
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output[0] = (c >> 12) + 0xE0;
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output[1] = ((c >> 6) & 0x3F) + 0x80;
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output[2] = (c & 0x3F) + 0x80;
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ft_align_wchar(output, field);
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return (output);
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}
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char *handler_4oct_char(wint_t c, t_conv *field)
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{
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char *output;
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field->str_size = (field->fl_witdth > 4) ? field->fl_witdth : 4;
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if (!(output = ft_strnew(field->str_size)))
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return (NULL);
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output[0] = (c >> 18) + 0xF0;
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output[1] = ((c >> 12) & 0x3F) + 0x80;
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output[2] = ((c >> 6) & 0x3F) + 0x80;
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output[3] = (c & 0x3F) + 0x80;
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ft_align_wchar(output, field);
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return (output);
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}
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char *handle_output_wchar(t_conv *field, va_list ap)
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{
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char *output;
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wint_t c;
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c = (wint_t)va_arg(ap, wint_t);
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if (c < 0 || (MB_CUR_MAX == 1 && c > 0xFF) || (c >= 0xD800 && c <= 0xDFFF))
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return (NULL);
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else if (c <= 0x7F || (MB_CUR_MAX == 1 && c <= 0xFF))
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{
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field->str_size = (field->fl_witdth > 1) ? field->fl_witdth : 1;
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if (!(output = ft_strnew(field->str_size)))
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return (NULL);
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output[0] = (char)c;
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ft_align_wchar(output, field);
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}
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else if (c <= 0x7FF)
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output = handler_2oct_char(c, field);
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else if (c <= 0xFFFF)
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output = handler_3oct_char(c, field);
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else if (c <= 0x10FFFF)
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output = handler_4oct_char(c, field);
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else
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return (NULL);
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return (output);
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}
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