Crate gramdex 

gramdex: k-gram indexing primitives for approximate string matching.

This crate is about candidate generation for fuzzy matching:

• build an index mapping grams -> candidate document ids (or string ids)
• query by grams to get a bounded candidate set
• verify candidates with an exact checker (edit distance / substring / etc.)

Tokenization policy for grams matters. This crate provides a Unicode-scalar (Rust char) k-gram helper as a safe default. Callers can supply their own gram stream if they need byte-grams or grapheme clusters.

Structs

GramDex

A minimal grams->docs candidate index.

PlannerConfig

Configuration for candidate planning / bailout.

Enums

CandidatePlan

Planner output for candidate generation.

Error

Errors for gram indexing.

Functions

char_kgrams

Produce Unicode-scalar k-grams (sliding window over Rust char).

char_trigrams

Produce Unicode-scalar trigrams (a convenience wrapper over char_kgrams).

trigram_jaccard

Exact trigram Jaccard similarity over Unicode-scalar trigrams.

Type Aliases

DocId

Document id type.