static rb_encoding*
set_base_encoding(int index, rb_encoding *base)
{
rb_encoding *enc = enc_table.list[index].enc;
enc_table.list[index].base = base;
if (ENC_DUMMY_P(base)) ENC_SET_DUMMY((rb_raw_encoding *)enc);
return enc;
}
/*
* call-seq:
* enc.inspect -> string
*
* Returns a string which represents the encoding for programmers.
*
* Encoding::UTF_8.inspect #=> "#<Encoding:UTF-8>"
* Encoding::ISO_2022_JP.inspect #=> "#<Encoding:ISO-2022-JP (dummy)>"
*/
static VALUE
enc_inspect(VALUE self)
{
rb_encoding *enc;
if (!is_data_encoding(self)) {
not_encoding(self);
}
if (!(enc = DATA_PTR(self)) || rb_enc_from_index(rb_enc_to_index(enc)) != enc) {
rb_raise(rb_eTypeError, "broken Encoding");
}
return rb_enc_sprintf(rb_usascii_encoding(),
"#<%"PRIsVALUE":%s%s%s>", rb_obj_class(self),
rb_enc_name(enc),
(ENC_DUMMY_P(enc) ? " (dummy)" : ""),
enc_autoload_p(enc) ? " (autoload)" : "");
}
int
rb_enc_register(const char *name, rb_encoding *encoding)
{
int index = rb_enc_registered(name);
if (index >= 0) {
rb_encoding *oldenc = rb_enc_from_index(index);
if (STRCASECMP(name, rb_enc_name(oldenc))) {
index = enc_register(name, encoding);
}
else if (enc_autoload_p(oldenc) || !ENC_DUMMY_P(oldenc)) {
enc_register_at(index, name, encoding);
}
else {
rb_raise(rb_eArgError, "encoding %s is already registered", name);
}
}
else {
index = enc_register(name, encoding);
set_encoding_const(name, rb_enc_from_index(index));
}
return index;
}
/*
* call-seq:
* enc.dummy? -> true or false
*
* Returns true for dummy encodings.
* A dummy encoding is an encoding for which character handling is not properly
* implemented.
* It is used for stateful encodings.
*
* Encoding::ISO_2022_JP.dummy? #=> true
* Encoding::UTF_8.dummy? #=> false
*
*/
static VALUE
enc_dummy_p(VALUE enc)
{
return ENC_DUMMY_P(enc_table.list[must_encoding(enc)].enc) ? Qtrue : Qfalse;
}
/*
* call-seq:
* enc.dummy? -> true or false
*
* Returns true for dummy encodings.
* A dummy encoding is an encoding for which character handling is not properly
* implemented.
* It is used for stateful encodings.
*
* Encoding::ISO_2022_JP.dummy? #=> true
* Encoding::UTF_8.dummy? #=> false
*
*/
static VALUE
enc_dummy_p(VALUE enc)
{
return ENC_DUMMY_P(must_encoding(enc)) ? Qtrue : Qfalse;
}
int
rb_enc_dummy_p(rb_encoding *enc)
{
return ENC_DUMMY_P(enc) != 0;
}
