and every compression decoder is a base.io_transformer, but there isn't an additional base.compression_decoder interface. Instead, we have some ad hoc additional methods:
deflate.decoder.add_history!(hist: slice u8)
lzw.decoder.flush!() slice u8
lzw.decoder.set_literal_width!(lw: u32[..= 8])
zlib.decoder.add_dictionary!(dict: slice u8)
zlib.decoder.dictionary_id() u32
There's also the gzip.decoder struct, which doesn't export anything beyond the base.io_transformer methods.
It would be nice if there was a common API, at least for the dictionary / history concepts.
As of Wuffs v0.3, there is a
base.io_transformerinterface:set_quirk_enabled!(quirk: u32, enabled: bool)transform_io?(dst: io_writer, src: io_reader, workbuf: slice u8)workbuf_len() range_ii_u64and every compression decoder is a
base.io_transformer, but there isn't an additionalbase.compression_decoderinterface. Instead, we have some ad hoc additional methods:deflate.decoder.add_history!(hist: slice u8)lzw.decoder.flush!() slice u8lzw.decoder.set_literal_width!(lw: u32[..= 8])zlib.decoder.add_dictionary!(dict: slice u8)zlib.decoder.dictionary_id() u32gzip.decoderstruct, which doesn't export anything beyond thebase.io_transformermethods.It would be nice if there was a common API, at least for the dictionary / history concepts.