Make an RLE class that uses fixed-length encoding to compress ASCII bytestreams with a finite number of characters while incorporating the code into the encoded bitstream. Add code to compress() to create a string alpha that contains each character in the message and uses it to create an alphabet for use in compress(). Then prepend alpha (8-bit encoding plus its length) to the compressed bitstream. Finally, add code to expand() to read the alphabet before expansion.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Make an RLE class that uses fixed-length encoding to compress ASCII bytestreams with a finite number of characters while incorporating the code into the encoded bitstream. Add code to compress() to create a string alpha that contains each character in the message and uses it to create an alphabet for use in compress(). Then prepend alpha (8-bit encoding plus its length) to the compressed bitstream. Finally, add code to expand() to read the alphabet before expansion.

 

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