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Snappy-Compression-Decompression-for-Delphi-Lazarus

Snappy Compression/Decompression for Delphi, Lazarus, Free Pascal

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Snappy-Compression-Decompression-for-Delphi-Lazarus

Snappy Compression/Decompression for Delphi, Lazarus, Free Pascal

Usage examples

pascal
var F,S: TFileStream;
begin
  F := TFileStream.Create('input.txt', fmOpenRead);
  S := TFileStream.Create('output.snap', fmCreate);
  Snappy(F, S);
  F.Free;
  S.Free;

  F := TFileStream.Create('output.snap', fmOpenRead);
  S := TFileStream.Create('output.txt', fmCreate);
  UnSnappy(F, S);
  F.Free;
  S.Free;
end;

This unit uses Snappy library by Google:

Copyright 2011, Google Inc. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  • Redistributions of source code must retain the above copyright

notice, this list of conditions and the following disclaimer.

  • Redistributions in binary form must reproduce the above

copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

  • Neither the name of Google Inc. nor the names of its

contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Linux (Debian, Ubuntu, Mint)

  1. apt install apt-file libsnappy-dev
  2. apt-file search libsnappy.so It will list you how your libsnappy.so files are named exactly and where they are
  3. Open SnappyLib.pas and edit "const LIBSNAP"
  4. Change the value of that const. Enter filename (excluding path) found in step 2
  5. Compile and run