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

flate

algorithm

lzw

moonbit

moon add gmlewis/flate@0.36.12

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Author

gmlewis

Version

0.36.12

License

Apache-2.0

Repository

github.com/gmlewis/moonbit-flate

Last updated

8 hours ago

Downloads

30K

Dependencies

gmlewis/io0.23.15

README

#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 0.1.20260819 (fc2a4ee 2026-08-19) ~/.moon/bin/moon
moonc v0.10.9+6e6c44045 (2026-08-19) ~/.moon/bin/moonc
moonrun 0.1.20260819 (fc2a4ee 2026-08-19) ~/.moon/bin/moonrun

#
Reader

source

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

#
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

#ioeof

#writer_closed_error

Source Files

#
Reader

#
Decompressor

#
Decompressor::make_reader

#
Decompressor::reset

#
DictWriter

#
Writer

#
Writer::new

#
Writer::new_dict

#
ioeof

#
writer_closed_error