Files

T

osobhandClaude Opus 5.5 8cbbef3fae fix(format): write a Group Info message in every group

libhdf5 reads a group's Group Info message before it inserts a link, and
FileWriter wrote none, so h5py in "r+" mode could not add a link to any
group we wrote: "Unable to create link (message type not found)". Each
group header now carries a version 0 Group Info message with the default
link-phase thresholds, as libhdf5 writes for a new group.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

2026-09-26 08:08:31 -05:00

benches

Merge pull request 'docs(clawhdf5): document DType variants, fix unresolved doc links' (#17 ) from sdlc-docs/clawhdf5-types-20260514-165210 into main

2026-05-14 23:54:48 +00:00

examples

Merge pull request 'docs(clawhdf5): document DType variants, fix unresolved doc links' (#17 ) from sdlc-docs/clawhdf5-types-20260514-165210 into main

2026-05-14 23:54:48 +00:00

fuzz

test(format): keep the 2026-09-20 B-tree v2 fuzz crash as a regression

2026-09-25 20:38:34 -05:00

src

fix(format): write a Group Info message in every group

2026-09-26 08:08:31 -05:00

tests

Merge branch 'fix/p1-vds' into fix/p1-read-gaps

2026-09-25 22:42:04 -05:00

Cargo.toml

feat(format): Blosc filter (32001), read and write, pure Rust

2026-09-26 00:10:05 -05:00

README.md

docs: fix stale package names, counts, and CLI subcommands

2026-06-03 11:17:04 +00:00

README.md

clawhdf5-format

Pure-Rust HDF5 binary format parsing and writing — no C dependencies.

Features

Zero-copy superblock, object header, and B-tree parsing
Chunked dataset read/write with filter pipelines
no_std support (disable std feature)
Optional parallel reads via Rayon
SHA-256 provenance tracking

Usage

use clawhdf5_format::Superblock;

let data = std::fs::read("data.h5").unwrap();
let sb = Superblock::from_bytes(&data).unwrap();
println!("HDF5 version {}.{}", sb.version_major(), sb.version_minor());

License

MIT