#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "mbfilter.h"
#include "mbfilter_byte2.h"
const mbfl_encoding mbfl_encoding_byte2be = {
mbfl_no_encoding_byte2be,
"byte2be",
NULL,
NULL,
NULL,
MBFL_ENCTYPE_SBCS
};
const mbfl_encoding mbfl_encoding_byte2le = {
mbfl_no_encoding_byte2le,
"byte2le",
NULL,
NULL,
NULL,
MBFL_ENCTYPE_SBCS
};
const struct mbfl_convert_vtbl vtbl_byte2be_wchar = {
mbfl_no_encoding_byte2be,
mbfl_no_encoding_wchar,
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_byte2be_wchar,
mbfl_filt_conv_common_flush
};
const struct mbfl_convert_vtbl vtbl_wchar_byte2be = {
mbfl_no_encoding_wchar,
mbfl_no_encoding_byte2be,
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_wchar_byte2be,
mbfl_filt_conv_common_flush };
const struct mbfl_convert_vtbl vtbl_byte2le_wchar = {
mbfl_no_encoding_byte2le,
mbfl_no_encoding_wchar,
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_byte2le_wchar,
mbfl_filt_conv_common_flush };
const struct mbfl_convert_vtbl vtbl_wchar_byte2le = {
mbfl_no_encoding_wchar,
mbfl_no_encoding_byte2le,
mbfl_filt_conv_common_ctor,
mbfl_filt_conv_common_dtor,
mbfl_filt_conv_wchar_byte2le,
mbfl_filt_conv_common_flush };
#define CK(statement) do { if ((statement) < 0) return (-1); } while (0)
int mbfl_filt_conv_byte2be_wchar(int c, mbfl_convert_filter *filter)
{
int n;
if (filter->status == 0) {
filter->status = 1;
n = (c & 0xff) << 8;
filter->cache = n;
} else {
filter->status = 0;
n = (c & 0xff) | filter->cache;
CK((*filter->output_function)(n, filter->data));
}
return c;
}
int mbfl_filt_conv_wchar_byte2be(int c, mbfl_convert_filter *filter)
{
CK((*filter->output_function)((c >> 8) & 0xff, filter->data));
CK((*filter->output_function)(c & 0xff, filter->data));
return c;
}
int mbfl_filt_conv_byte2le_wchar(int c, mbfl_convert_filter *filter)
{
int n;
if (filter->status == 0) {
filter->status = 1;
n = c & 0xff;
filter->cache = n;
} else {
filter->status = 0;
n = ((c & 0xff) << 8) | filter->cache;
CK((*filter->output_function)(n, filter->data));
}
return c;
}
int mbfl_filt_conv_wchar_byte2le(int c, mbfl_convert_filter *filter)
{
CK((*filter->output_function)(c & 0xff, filter->data));
CK((*filter->output_function)((c >> 8) & 0xff, filter->data));
return c;
}