A CQL ANTLR parser written in TypeScript Usage
import {CqlAntlr, CqlResult} from "cql-antlr-parser";
...
const result: CqlResult = new CqlAntlr(cqlString).parse();`
Initial grammar files (cql.g4 & fhirPath.g4) come from https://cql.hl7.org/grammar.html