Crate kenlm 

Safe Rust bindings for KenLM language model inference.

The crate compiles KenLM’s query-only C++ sources and exposes a small Rust API for loading ARPA or binary models, scoring sentences, inspecting vocabulary membership, and doing explicit stateful scoring.

Safety model

The public API is safe Rust. C++ exceptions are caught in the C++ shim and converted into KenlmError values. Opaque State values carry an internal model identity token, so stateful scoring rejects states created by a different Model before calling into KenLM. The raw KenLM model handle is owned by Model and released exactly once in Drop.

Structs

Config

Runtime loading options for KenLM models.

FullScore

Detailed score metadata for one state transition.

Model

A KenLM model loaded from an ARPA or KenLM binary file.

State

Opaque KenLM state memory used for incremental scoring.

TokenScore

Sentence-level per-token score, including OOV metadata.

Enums

ArpaLoadComplain

How loudly KenLM should complain about loading ARPA instead of binary data.

KenlmError

Errors returned by the KenLM bindings.

LoadMethod

How KenLM should bring binary model data into memory.

Type Aliases

Result

Crate-local result type.

WordIndex

KenLM vocabulary index.