Function: parseAstmDate()

parseAstmDate(raw): AstmDate | undefined

Parse an ASTM YYYYMMDDHHMMSS value, preserving whatever precision is present. Returns undefined for a value that is not a usable timestamp (fewer than four leading digits for the year, or non-digit content): a caller keeps the raw field text either way, so nothing is lost. A partial value is parsed, never rejected.

Extra trailing digits beyond seconds (fractional seconds some vendors append) are ignored for the structured value; the full input remains in AstmDate.raw.

Parameters

raw

string

The raw field text.

Returns

AstmDate | undefined

The parsed date, or undefined when it is not a timestamp.

Example

import { parseAstmDate } from "@cosyte/astm";
parseAstmDate("20240315093000")?.precision; // "second"
parseAstmDate("202403")?.precision;          // "month"