README
Tr
Reader
- ::make_readerDecompressor::make_reader
- ::resetDecompressor::reset
T
DictWriter
- ::newWriter::new
- ::new_dictWriter::new_dict
- ::newReader::new
- ::new_dictReader::new_dict
V
ioeof
V
writer_closed_error

flate

MoonBit flate: provide simplified flate (LZW) compression algorithm.

flate

algorithm

lzw

moonbit

Download zip

Author

gmlewis

Version

0.35.16

License

Apache-2.0

Repository

github.com/gmlewis/moonbit-flate

Last updated

last year

Downloads

63K

gmlewis/io0.22.8

#gmlewis/flate

This is a simplified flate compression algorithm based on Go's implementation: https://cs.opensource.google/go/go/+/refs/tags/go1.23.1:src/compress/flate/deflatefast.go which has the copyright notice:

// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

#Status

The code has been updated to support compiler:

$ moon version --all
moon 0.1.20250722 (9514370 2025-07-22) ~/.moon/bin/moon
moonc v0.6.21 ~/.moon/bin/moonc
moonrun 0.1.20250722 (9514370 2025-07-22) ~/.moon/bin/moonrun

Reader

source

pub(open) trait Reader {
  read(Self, @gmlewis/io.Slice
Slice[Byte]) -> (Int, @gmlewis/io.IOError
IOError?)
  read_byte(Self) -> (Byte, @gmlewis/io.IOError
IOError?)
}

The actual read interface needed by [Decompressor::new].

impl Reader for Buffer

fn read(self : @gmlewis/io.Buffer
Buffer, b : @gmlewis/io.Slice
Slice[Byte]) -> (Int, @gmlewis/io.IOError
IOError?)

source

fn read_byte(self : @gmlewis/io.Buffer
Buffer) -> (Byte, @gmlewis/io.IOError
IOError?)

source

Decompressor

source

type Decompressor

impl Closer for Decompressor

impl Reader for Decompressor

Decompressor::make_reader

source

fn Decompressor::make_reader(self : Decompressor, r : Reader) -> Unit

Decompressor::reset

source

fn Decompressor::reset(self : Decompressor, r : Reader, dict : @gmlewis/io.Slice
Slice[Byte]) -> Unit

DictWriter

source

type DictWriter

impl Writer for DictWriter

Writer

source

type Writer

impl Closer for Writer

impl Writer for Writer

Writer::new

source

fn Writer::new(buf : @gmlewis/io.Writer
Writer) -> Writer

Writer::new returns a new [@io.WriteCloser] compressing data at the "BestSpeed" level. It writes its (compressed) data to the provided buf.

Writer::new_dict

source

fn Writer::new_dict(w : @gmlewis/io.Writer
Writer, dict : @gmlewis/io.Slice
Slice[Byte]) -> Writer

Reader

Reader::new

source

fn Reader::new(r : Reader) -> Decompressor

Reader::new returns a new [@io.ReadCloser] that can be used to read the uncompressed version of r.

Reader::new_dict

source

fn Reader::new_dict(r : Reader, dict : @gmlewis/io.Slice
Slice[Byte]) -> Decompressor

Reader::new_dict is like [NewReader] but initializes the reader with a preset dictionary. The returned [Reader] behaves as if the uncompressed data stream started with the given dictionary, which has already been read. NewReaderDict is typically used to read data compressed by NewWriterDict.

impl ByteReader for Reader

impl Reader for Reader

ioeof

source

let ioeof : @gmlewis/io.IOError
IOError

writer_closed_error

source

let writer_closed_error : @gmlewis/io.IOError
IOError

Source Files

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flate

#gmlewis/flate

#Status

#Reader

#Decompressor

#Decompressor::make_reader

#Decompressor::reset

#DictWriter

#Writer

#Writer::new

#Writer::new_dict

Reader

#Reader::new

#Reader::new_dict

#ioeof

#writer_closed_error

Source Files

Reader

Decompressor

Decompressor::make_reader

Decompressor::reset

DictWriter

Writer

Writer::new

Writer::new_dict

Reader::new

Reader::new_dict

ioeof

writer_closed_error