Clinical Quality Language (CQL) implementation for Rust

This crate provides a complete CQL 1.5 implementation including:

• Parsing CQL expressions and libraries
• Type checking and semantic analysis
• ELM (Expression Logical Model) output
• Expression evaluation
• Version-agnostic FHIR support

Example

use octofhir_cql::parse;

let cql = r#"
library Example version '1.0.0'

define InPopulation:
    AgeInYears() >= 18
"#;

let library = parse(cql)?;

octofhir-cql

Clinical Quality Language (CQL) implementation for Rust.

Overview

This is the main crate of the cql-rs workspace. It provides the high-level API for parsing, type-checking, translating (to ELM), and evaluating CQL expressions against FHIR data.

License

MIT OR Apache-2.0