GZIP (.gz) File Format - Maple Programming Help

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GZIP (.gz) File Format

Gzip file format

 

Description

Notes

Examples

References

Description

• 

GZIP is a file format is a data compression format widely used for file archiving and for transporting data compression on the Internet.

• 

The Import command can automatically uncompress gzip archives and attempt to parse the underlying data.

• 

The FileTools[Compressed] package provides tools for reading from and writing to gzip archives.

Notes

• 

Content-Type: application/gzip

Examples

Read the compressed bytes inside the gzip file and return as a ByteArray.

gzipFileFileTools:-JoinPathexample/PlanetaryData.csv.gz,base=datadir

C:\Program Files\Maple 2016\data\example\PlanetaryData.csv.gz

(1)

FileTools:-Compressed:-ReadFilegzipFile

(2)

Read and import the underlying data in one step:

Importexample/PlanetaryData.csv.gz,base=datadir

MercuryVenusEarthMarsJupiterSaturnUranusNeptuneMass (10^24 kg)0.334.875.970.642189856886.8102Diameter (km)4879121041275667921429841205365111849528Density (kg/m^3)5427524355143933132668712711638Gravity (m/s^2)3.78.99.83.723.19.08.711Escape Velocity (km/s)4.310.411.2559.535.521.323.5Rotation Period (hr)1407.6−5832.523.924.69.910.7−17.216.1Length of Day (hr)4222.628022424.79.910.717.216.1Distance from Sun (106 km)57.9108.2149.6227.9778.61433.52872.54495.1

(3)

References

  

[RFC1952] Deutsch, P., GZIP file format specification version 4.3, RFC 1952, May 1996.

  

[RFC6713] Levine, J., The 'application/zlib' and 'application/gzip' Media Types, RFC 6713, August 2012.

See Also

FileTools[Compressed]

Formats