LZ

Generated by scripts/gen-format-pages.py from docs/data/format-metadata/, FILE_FORMATS.csv and docs/formats-master.csv. Do not edit by hand: change the source, then run the script.

Lzip Preview.

At a glance

How much Poka reads

B4 Summary. The container and metadata are read and summarised (counts, properties, structure), but the main content is not rendered.

Confidence: medium (the reviewer read the code). Basis: Reviewed 2026-10-26: read parsers/poka-lzip/src/main.rs (227 lines) and plugin.json. No tests/samples.rs; the corpus has no .lz and .lzip sample; since #536, unit tests build one- and two-member files. Covers .lz and .lzip. The card reads the first member header (version, dictionary size) and, since #536, walks every member's trailer back from the end of the file (CRC-32, original size, member size) and shows the member count, totals and ratio; if the trailers do not chain back to offset 0 it says why and shows no totals. Judgement: B4: the stream's structure is walked and summarised, but nothing is decompressed.

What Poka does not read

• The data is not decompressed, so the content is not shown
• Trailing data after the last member is not recognised: the member count and totals are then withheld
• The CRC-32 is shown, not verified
• Files over 4 GiB are cut (flagged)

Libraries

Libraries Poka uses or has assessed for this format, with the status, licence and language the registry records.

• lzip (lzip-rs) (candidate; MIT OR Apache-2.0; Rust; https://github.com/firasuke/lzip-rs) — Bindings to lzlib (C) with Reader/Writer streams; last release seen 2022; lzlib licence not checked
• libarchive (candidate; licence unconfirmed; C; https://github.com/libarchive/libarchive) — README lists lzip among handled compression formats; COPYING describes a permissive notice but the page did not name the licence

Sources

• parsers/poka-lzip/src/main.rs
• parsers/poka-lzip/plugin.json