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-# Huff0 entropy compression
-
-This package provides Huff0 encoding and decoding as used in zstd.
-            
-[Huff0](https://github.com/Cyan4973/FiniteStateEntropy#new-generation-entropy-coders), 
-a Huffman codec designed for modern CPU, featuring OoO (Out of Order) operations on multiple ALU 
-(Arithmetic Logic Unit), achieving extremely fast compression and decompression speeds.
-
-This can be used for compressing input with a lot of similar input values to the smallest number of bytes.
-This does not perform any multi-byte [dictionary coding](https://en.wikipedia.org/wiki/Dictionary_coder) as LZ coders,
-but it can be used as a secondary step to compressors (like Snappy) that does not do entropy encoding. 
-
-* [Godoc documentation](https://godoc.org/github.com/klauspost/compress/huff0)
-
-## News
-
-This is used as part of the [zstandard](https://github.com/klauspost/compress/tree/master/zstd#zstd) compression and decompression package.
-
-This ensures that most functionality is well tested.
-
-# Usage
-
-This package provides a low level interface that allows to compress single independent blocks. 
-
-Each block is separate, and there is no built in integrity checks. 
-This means that the caller should keep track of block sizes and also do checksums if needed.  
-
-Compressing a block is done via the [`Compress1X`](https://godoc.org/github.com/klauspost/compress/huff0#Compress1X) and 
-[`Compress4X`](https://godoc.org/github.com/klauspost/compress/huff0#Compress4X) functions.
-You must provide input and will receive the output and maybe an error.
-
-These error values can be returned:
-
-| Error               | Description                                                                 |
-|---------------------|-----------------------------------------------------------------------------|
-| `<nil>`             | Everything ok, output is returned                                           |
-| `ErrIncompressible` | Returned when input is judged to be too hard to compress                    |
-| `ErrUseRLE`         | Returned from the compressor when the input is a single byte value repeated |
-| `ErrTooBig`         | Returned if the input block exceeds the maximum allowed size (128 Kib)      |
-| `(error)`           | An internal error occurred.                                                 |
-
-
-As can be seen above some of there are errors that will be returned even under normal operation so it is important to handle these.
-
-To reduce allocations you can provide a [`Scratch`](https://godoc.org/github.com/klauspost/compress/huff0#Scratch) object 
-that can be re-used for successive calls. Both compression and decompression accepts a `Scratch` object, and the same 
-object can be used for both.   
-
-Be aware, that when re-using a `Scratch` object that the *output* buffer is also re-used, so if you are still using this
-you must set the `Out` field in the scratch to nil. The same buffer is used for compression and decompression output.
-
-The `Scratch` object will retain state that allows to re-use previous tables for encoding and decoding.  
-
-## Tables and re-use
-
-Huff0 allows for reusing tables from the previous block to save space if that is expected to give better/faster results. 
-
-The Scratch object allows you to set a [`ReusePolicy`](https://godoc.org/github.com/klauspost/compress/huff0#ReusePolicy) 
-that controls this behaviour. See the documentation for details. This can be altered between each block.
-
-Do however note that this information is *not* stored in the output block and it is up to the users of the package to
-record whether [`ReadTable`](https://godoc.org/github.com/klauspost/compress/huff0#ReadTable) should be called,
-based on the boolean reported back from the CompressXX call. 
-
-If you want to store the table separate from the data, you can access them as `OutData` and `OutTable` on the 
-[`Scratch`](https://godoc.org/github.com/klauspost/compress/huff0#Scratch) object.
-
-## Decompressing
-
-The first part of decoding is to initialize the decoding table through [`ReadTable`](https://godoc.org/github.com/klauspost/compress/huff0#ReadTable).
-This will initialize the decoding tables. 
-You can supply the complete block to `ReadTable` and it will return the data part of the block 
-which can be given to the decompressor. 
-
-Decompressing is done by calling the [`Decompress1X`](https://godoc.org/github.com/klauspost/compress/huff0#Scratch.Decompress1X) 
-or [`Decompress4X`](https://godoc.org/github.com/klauspost/compress/huff0#Scratch.Decompress4X) function.
-
-For concurrently decompressing content with a fixed table a stateless [`Decoder`](https://godoc.org/github.com/klauspost/compress/huff0#Decoder) can be requested which will remain correct as long as the scratch is unchanged. The capacity of the provided slice indicates the expected output size.
-
-You must provide the output from the compression stage, at exactly the size you got back. If you receive an error back
-your input was likely corrupted. 
-
-It is important to note that a successful decoding does *not* mean your output matches your original input. 
-There are no integrity checks, so relying on errors from the decompressor does not assure your data is valid.
-
-# Contributing
-
-Contributions are always welcome. Be aware that adding public functions will require good justification and breaking 
-changes will likely not be accepted. If in doubt open an issue before writing the PR.