Crate hdf5_pure 

Pure-Rust HDF5 file reading and writing library.

hdf5-pure is a zero-C-dependency crate for creating and reading HDF5 files. It is WASM-compatible and supports no_std environments with alloc.

Writing files

use hdf5_pure::{FileBuilder, AttrValue};

let mut builder = FileBuilder::new();
builder.create_dataset("data")
    .with_f64_data(&[1.0, 2.0, 3.0])
    .with_shape(&[3])
    .set_attr("unit", AttrValue::String("m/s".into()));
let bytes = builder.finish().unwrap();

Reading files

use hdf5_pure::File;

let file = File::from_bytes(std::fs::read("output.h5").unwrap()).unwrap();
let ds = file.dataset("data").unwrap();
let values = ds.read_f64().unwrap();

Re-exports

pub use error::Error;

pub use error::FormatError;

pub use reader::Dataset;

pub use reader::File;

pub use reader::Group;

pub use types::AttrValue;

pub use types::DType;

pub use writer::FileBuilder;

pub use type_builders::CompoundTypeBuilder;

pub use type_builders::EnumTypeBuilder;

pub use type_builders::make_f32_type;

pub use type_builders::make_f64_type;

pub use type_builders::make_i8_type;

pub use type_builders::make_i16_type;

pub use type_builders::make_i32_type;

pub use type_builders::make_i64_type;

pub use type_builders::make_u8_type;

pub use type_builders::make_u16_type;

pub use type_builders::make_u32_type;

pub use type_builders::make_u64_type;

Modules

attribute

HDF5 Attribute message parsing (message type 0x000C).

attribute_info

HDF5 Attribute Info message parsing (message type 0x0015).

btree_v1

HDF5 B-tree v1 parsing (type 0 for groups).

btree_v2

HDF5 B-tree v2 parsing.

checksum

HDF5 metadata checksum: Jenkins lookup3 hashlittle and CRC32.

chunk_cache

Chunk cache with hash-based index and LRU eviction.

chunked_read

Chunked dataset reading: B-tree v1 type 1 traversal and chunk assembly.

chunked_write

Chunked dataset writing: chunk splitting, compression, index building.

data_layout

HDF5 Data Layout message parsing (message type 0x0008).

data_read

Raw data reading and typed conversion for HDF5 datasets.

dataspace

HDF5 Dataspace message parsing (message type 0x0001).

datatype

HDF5 Datatype message parsing (message type 0x0003).

error

Error types for HDF5 format parsing.

extensible_array

HDF5 Extensible Array index parsing for chunked datasets (v4 index type 4).

file_writer

HDF5 file creation (write pipeline).

filter_pipeline

HDF5 Filter Pipeline message parsing (message type 0x000B).

filters

HDF5 filter implementations: deflate, shuffle, fletcher32.

fixed_array

HDF5 Fixed Array index parsing for chunked datasets (v4 index type 3).

fractal_heap

HDF5 Fractal Heap parsing for v2 group link storage.

global_heap

HDF5 Global Heap collection parsing.

group_info

HDF5 Group Info message parsing (message type 0x000A).

group_v1

V1 group traversal: resolve group children and navigate paths.

group_v2

V2 group traversal: resolve group children and navigate paths.

link_info

HDF5 Link Info message parsing (message type 0x0002).

link_message

HDF5 Link message parsing (message type 0x0006).

local_heap

HDF5 Local Heap parsing.

message_type

HDF5 object header message type identifiers.

metadata_index

Index-table + metadata-block architecture for independent parallel dataset creation.

object_header

HDF5 Object Header parsing (v1 and v2).

object_header_writer

Object header writer for v2 format.

reader

Reading API: File, Dataset, and Group handles for reading HDF5 files.

shared_message

HDF5 Shared Object Header Message resolution.

signature

HDF5 file signature (magic bytes) detection.

superblock

HDF5 Superblock parsing for versions 0, 1, 2, and 3.

symbol_table

HDF5 Symbol Table Message and Symbol Table Node (SNOD) parsing.

type_builders

Builder types for HDF5 datatypes, attributes, datasets, and groups.

types

Simplified type representations for the high-level API.

vl_data

Variable-length data reading (VL strings & VL sequences).

writer

Writing API: FileBuilder and GroupBuilder for creating HDF5 files.