Delete adaptive_arithmetic_compress.py

adaptive_arithmetic_compress.py

-# 
-# Compression application using adaptive arithmetic coding
-# 
-# Usage: python adaptive-arithmetic-compress.py InputFile OutputFile
-# Then use the corresponding adaptive-arithmetic-decompress.py application to recreate the original input file.
-# Note that the application starts with a flat frequency table of 257 symbols (all set to a frequency of 1),
-# and updates it after each byte encoded. The corresponding decompressor program also starts with a flat
-# frequency table and updates it after each byte decoded. It is by design that the compressor and
-# decompressor have synchronized states, so that the data can be decompressed properly.
-# 
-# Copyright (c) Project Nayuki
-# 
-# https://www.nayuki.io/page/reference-arithmetic-coding
-# https://github.com/nayuki/Reference-arithmetic-coding
-# 
-
-import sys
-import arithmeticcoding
-python3 = sys.version_info.major >= 3
-
-
-# Command line main application function.
-def main(args):
-	# Handle command line arguments
-	if len(args) != 2:
-		sys.exit("Usage: python adaptive-arithmetic-compress.py InputFile OutputFile")
-	inputfile  = args[0]
-	outputfile = args[1]
-	
-	# Perform file compression
-	with open(inputfile, "rb") as inp:
-		bitout = arithmeticcoding.BitOutputStream(open(outputfile, "wb"))
-		try:
-			compress(inp, bitout)
-		finally:
-			bitout.close()
-
-
-def compress(inp, bitout):
-	initfreqs = arithmeticcoding.FlatFrequencyTable(257)
-	freqs = arithmeticcoding.SimpleFrequencyTable(initfreqs)
-	enc = arithmeticcoding.ArithmeticEncoder(bitout)
-	while True:
-		# Read and encode one byte
-		symbol = inp.read(1)
-		if len(symbol) == 0:
-			break
-		symbol = symbol[0] if python3 else ord(symbol)
-		enc.write(freqs, symbol)
-		freqs.increment(symbol)
-	enc.write(freqs, 256)  # EOF
-	enc.finish()  # Flush remaining code bits
-
-
-# Main launcher
-if __name__ == "__main__":
-	main(sys.argv[1 : ])