/*
* call-seq:
* enc.replicate(name) -> encoding
*
* Returns a replicated encoding of _enc_ whose name is _name_.
* The new encoding should have the same byte structure of _enc_.
* If _name_ is used by another encoding, raise ArgumentError.
*
*/
static VALUE
enc_replicate(VALUE encoding, VALUE name)
{
return rb_enc_from_encoding_index(
rb_enc_replicate(StringValueCStr(name),
rb_to_encoding(encoding)));
}
int
rb_define_dummy_encoding(const char *name)
{
int index = rb_enc_replicate(name, rb_ascii8bit_encoding());
rb_encoding *enc = enc_table.list[index].enc;
ENC_SET_DUMMY(enc);
return index;
}
rb_encoding* rb_nkf_enc_get(const char *name)
{
#if 0
int idx = rb_enc_find_index(name);
if (idx < 0) {
nkf_encoding *nkf_enc = nkf_enc_find(name);
idx = rb_enc_find_index(nkf_enc_name(nkf_enc_to_base_encoding(nkf_enc)));
if (idx < 0) {
idx = rb_define_dummy_encoding(name);
} else {
rb_encoding *rb_enc = rb_enc_from_index(idx);
idx = rb_enc_replicate(name, rb_enc);
}
}
return rb_enc_from_index(idx);
#else
struct nkf_osx_name_enc_table {
const char* name;
CFStringEncoding enc;
};
static struct nkf_osx_name_enc_table table[] = {
{ "BINARY", kCFStringEncodingNonLossyASCII },
{ "US-ASCII", kCFStringEncodingASCII },
{ "ISO-2022-JP", kCFStringEncodingISO_2022_JP },
{ "ISO-2022-JP-1", kCFStringEncodingISO_2022_JP_1 },
{ "ISO-2022-JP-2", kCFStringEncodingISO_2022_JP_2 },
{ "ISO-2022-JP-3", kCFStringEncodingISO_2022_JP_3 },
{ "EUC-JP", kCFStringEncodingEUC_JP },
{ "Shift_JIS", kCFStringEncodingShiftJIS },
{ "UTF-8", kCFStringEncodingUTF8 },
{ "UTF-16", kCFStringEncodingUTF16 },
{ "UTF-16BE", kCFStringEncodingUTF16BE },
{ "UTF-16LE", kCFStringEncodingUTF16LE },
{ "UTF-32", kCFStringEncodingUTF32 },
{ "UTF-32BE", kCFStringEncodingUTF32BE },
{ "UTF-32LE", kCFStringEncodingUTF32LE },
{ NULL, kCFStringEncodingNonLossyASCII }
};
struct nkf_osx_name_enc_table* ptr = table;
while (ptr->name) {
if (strcmp(name, ptr->name) == 0)
return &(ptr->enc);
ptr++;
}
return &(ptr->enc);
#endif
}
rb_encoding* rb_nkf_enc_get(const char *name)
{
int idx = rb_enc_find_index(name);
if (idx < 0) {
nkf_encoding *nkf_enc = nkf_enc_find(name);
idx = rb_enc_find_index(nkf_enc_name(nkf_enc_to_base_encoding(nkf_enc)));
if (idx < 0) {
idx = rb_define_dummy_encoding(name);
} else {
rb_encoding *rb_enc = rb_enc_from_index(idx);
idx = rb_enc_replicate(name, rb_enc);
}
}
return rb_enc_from_index(idx);
}
