Crate snomed_ecl_engine 

Evaluate SNOMED CT Expression Constraint Language against an index built from an RF2 Snapshot, inside your own process.

store::NumericStore opens an index, ecl::parse parses an expression and eval::evaluate returns the matching concepts as ordinals, which resolve to SCTIDs through store.ids. Open the store once and reuse it.

use snomed_ecl_engine::{ecl, eval, store::NumericStore};
use std::path::Path;

let store = NumericStore::open(Path::new("uk.ecl"))?;
let expression = ecl::parse("<< 64572001 |Disease|")?;
let ordinals = eval::evaluate(&store, &expression)?;
let codes: Vec<u64> = ordinals.iter().map(|&o| store.ids[o as usize]).collect();

Features: import (default) builds indexes from RF2 archives; unicode links ICU for term matching in description filters. Without import, the crate can still open, query, pack and verify existing indexes.

Modules

config

Bind edition-specific names without changing the ECL parser.

decimal

Exact decimal comparison without conversion to binary floating point.

detail

Everything a browser shows for one concept, resolved in a single pass.

ecl

ECL 2.3 parsing. Unsupported constructs fail before evaluation.

eval

Sorted ordinal sets with bounded evaluation work and temporary storage.

import

store

text

Unicode collation support for ECL text predicates.