Function parseDateSnapSegment

src/utils/dateModifiers.ts:73–81

(segment: string)

 * key IS a snap key but the unit is unknown.
 */
export function parseDateSnapSegment(segment: string): DateSnap | null {
	const keyed = parsePipeKeyValue(segment);
	if (!keyed) return null;
	if (keyed.key === "startof")
		return { boundary: "start", unit: normalizeDateUnit(keyed.value) };
	if (keyed.key === "endof")
		return { boundary: "end", unit: normalizeDateUnit(keyed.value) };
	return null;
}

/**
 * Applies a snap to a moment IN PLACE (moment mutates) and returns it. Callers