Struct LabelIndex 

pub struct LabelIndex { /* private fields */ }

A parsed LABEL_INDEX: the root resident, inner nodes and blocks on demand.

Implementations

impl LabelIndex

pub fn from_section(section: &[u8], codec: u8) -> Result<LabelIndex, FileError>

Parse a whole section held in memory, checking its digest.

pub fn from_head( head: &[u8], section_len: u64, codec: u8, loader: Box<dyn Fn(u64, u64) -> Option<Vec<u8>> + Sync + Send>, ) -> Result<LabelIndex, FileError>

Open from the section’s leading bytes (head, at least the preamble; normally HEAD_READ bytes) and a loader for any range of the section. The root is read from head when it fits, else fetched.

pub fn entry_count(&self) -> u64

Number of entries in the index.

pub fn section_len(&self) -> u64

Byte length of the whole section.

pub fn prefix_search(&self, prefix: &str, limit: usize) -> Vec<(String, String)>

Entries whose label starts with prefix, compared case-insensitively, as (label, subject term) in key order, at most limit. An empty prefix lists the index from the start.

Trait Implementations

impl Debug for LabelIndex

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

Formats the value using the given formatter.