![]() Next: zippy/io.lisp, Previous: zippy/toolkit.lisp, Up: Lisp 3.1.4 zippy/parser.lisp Dependency See ``make-decompression-state``, ``make-compression-state``, ``make-decryption-state``, ``make-encryption-state``. With the exception of the central directory encryption however, the architecture is designed in such a way that additional encryption and compression algorithms can be added in a pluggable and easy way at a later point. Handling of additional metadata in third-party extra structures Encrypted or compressed central directory The following features remain unsupported at the moment: You should then invoke the ``use-value`` restart with a suitable ``io`` instance to continue the decoding. However, when decoding from an octet vector, Zippy has no way of guessing where to get the rest of the data from and will signal an error of type ``archive-file-required`` with the requested ``disk`` id. When reading a split zip file from disk, Zippy will take care of accessing the other zip parts automatically. All of the other metadata is stored directly in the entry and does not require decoding.įor greater control when constructing a zip file, you can manually create ``zip-entry`` instances yourself and pass the final ``zip-file`` instance to ``compress-zip``. You can look at the raw payload of a ``zip-entry`` by using ``decode-entry``. The source zip does not have to be a path to a file on disk, but may also be an octet vector or a file-stream. In order to simply examine a zip file's contents: You can also compress things from in memory: Similarly, compressing a file or directory to a zip: Extensible for other encryption and compression mechanismsįor this tutorial we will assume the ```` package has a local-nickname of ``zippy``.Įxtracting a zip file to disk is straight-forward: Fast deflate decompression thanks to 3bz Zippy is a library for the PKWARE Zip archive format. Next: Systems, Previous: The zippy Reference Manual, Up: The zippy Reference Manual 1 Introduction ![]()
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