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/**
* Pure NDJSON line splitter — zero I/O.
*
* Splits a buffer on newlines, keeping an incomplete trailing line in `rest`.
* Does NOT parse JSON — that is the caller's job.
*/
export interface SplitResult {
readonly lines: readonly string[];
readonly rest: string;
}
export function splitNdjsonLines(buffer: string): SplitResult {
const parts = buffer.split("\n");
const rest = parts[parts.length - 1] ?? "";
const lines = parts.slice(0, -1).filter((l) => l.length > 0);
return { lines, rest };
}
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