Struct ZstdDictionary 

pub struct ZstdDictionary { /* private fields */ }

A Zstandard dictionary for compression/decompression

Implementations

impl ZstdDictionary

pub fn from_content(content: Vec<u8>) -> Result<Self>

Create a new dictionary from raw content

pub fn parse(data: &[u8]) -> Result<Self>

Parse a dictionary from serialized format

pub fn train(samples: &[&[u8]], dict_size: usize) -> Result<Self>

Train a dictionary from samples

Uses a simple but effective algorithm:

1. Find common substrings across samples
2. Score by frequency * length
3. Select top patterns up to target size

pub fn id(&self) -> u32

Get dictionary ID

pub fn content(&self) -> &[u8]

Get dictionary content

pub fn size(&self) -> usize

Get dictionary size

pub fn serialize(&self) -> Vec<u8>

Serialize dictionary to bytes

pub fn find_match(&self, input: &[u8], pos: usize) -> Option<DictMatch>

Find best match in dictionary for the given position in input

pub fn get_byte(&self, pos: usize) -> Option<u8>

Get byte at position (for match verification during decompression)

Trait Implementations

impl Clone for ZstdDictionary

fn clone(&self) -> ZstdDictionary

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ZstdDictionary

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.