Function: resolvePath()

resolvePath(path, segments, _enc): string | undefined

Resolve a dot-path string against a raw segment tree to its decoded leaf value. Returns undefined whenever the path does not resolve (missing segment, out-of-range field/component/subcomponent/repetition), and never throws on a missing value. Throws TypeError only when path itself is malformed: callers relying on "never throws" should pre-validate or wrap in try/catch.

Parameters

path

string

segments

readonly RawSegment[]

_enc

EncodingCharacters

Returns

string | undefined

Example

import { parseHL7, resolvePath } from "@cosyte/hl7";
const msg = parseHL7(raw);
resolvePath("PID.5.1", msg.rawSegments, msg.encodingCharacters); // "Smith"
resolvePath("NOT.9", msg.rawSegments, msg.encodingCharacters);    // undefined