Function parseTiming

packages/lint/src/rules/slideshow.ts:12–29

(raw: string)

type Scene = { id: string; start: number; duration: number };

function parseTiming(raw: string): { start: number; duration: number } | null {
  const startStr = readAttr(raw, "data-start");
  if (startStr === null) return null;
  const start = Number(startStr);
  if (!Number.isFinite(start)) return null;

  const durationStr = readAttr(raw, "data-duration");
  if (durationStr !== null) {
    const duration = Number(durationStr);
    if (Number.isFinite(duration)) return { start, duration };
  }
  const endStr = readAttr(raw, "data-end") ?? readAttr(raw, "data-hf-authored-end");
  if (endStr !== null) {
    const end = Number(endStr);
    if (Number.isFinite(end) && end > start) return { start, duration: end - start };
  }
  return null;
}

function collectCompositionIdScenes(ctx: LintContext, seen: Set<string>, out: Scene[]): void {
  for (const tag of ctx.tags) {