Function: classifyMessage()

classifyMessage(records): AstmMessageClassification

Classify a record stream by the host-query flow. Pure and total: it only reads the record type letters, never a field value.

Q dominates: a message with any Q record is a host-query request even when a result (R) record is also present, so a query is never misread as a result upload. (The Q+R anomaly is separately warned at parse time.)

Parameters

records

readonly AstmRecord[]

The parsed records, in wire order.

Returns

AstmMessageClassification

The message classification.

Example

import { classifyMessage, parseAstmRecords } from "@cosyte/astm";
const msg = parseAstmRecords("H|\\^&\rP|1\rQ|1|^SPEC-7||ALL\rL|1\r");
classifyMessage(msg.records).kind; // "host-query"