Here are the data structures with brief descriptions:

Ccharset_8859_codec	ISO-8859-n charset codec
Ccharset_ascii_codec	US-ASCII charset codec
Ccharset_ext8_codec	Windows charset codec
Ccharset_utf16_codec	UTF-16 charset codec
Ccharset_utf8_codec	UTF-8 charset codec
Clengthed_string
Cparserutils_buffer
Cparserutils_charset_aliases_canon
Cparserutils_charset_codec	Core charset codec definition; implementations extend this
Cparserutils_charset_codec_optparams	Charset codec option parameters
Cparserutils_charset_handler	Codec factory component definition
Cparserutils_filter	Input filter
Cparserutils_filter_optparams	Input filter option parameters
Cparserutils_inputstream	Input stream object
Cparserutils_inputstream_private	Private input stream definition
Cparserutils_stack	Stack object
Cparserutils_vector	Vector object