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idzip's Introduction

The idzip file format allows seeking in gzip files.

Features:

  • efficient seeking in the compressed data
  • no 4GB limit
  • compatible with gzip

Provided interface:

  • idzip, gunzip, zcat command line utilities
  • Python function idzip.open(filename) for transparent reading

Gzip allows to store extra fields in the gzip header. Idzip stores offsets for the efficient seeking there.

Acknowledgement

The file format was designed by Rik Faith for dictzip. Idzip just uses multiple gzip members to have no file size limit.
Idzip means Improved Dictzip.

idzip's People

Contributors

fidlej avatar ran404 avatar

Watchers

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