Function parseGifLoopArg

packages/cli/src/utils/renderArgs.ts:232–246

(raw: string | undefined)

 * caller can apply the format-dependent default (0 = infinite for gif).
 */
export function parseGifLoopArg(raw: string | undefined): GifLoopParseResult {
  if (raw === undefined) return { ok: true, value: undefined };
  const trimmed = raw.trim();
  if (trimmed.length === 0) {
    return { ok: false, message: "GIF loop count must not be empty." };
  }
  const parsed = Number(trimmed);
  if (!Number.isInteger(parsed) || parsed < 0 || parsed > 65_535) {
    return {
      ok: false,
      message: `Got "${raw}". GIF loop count must be an integer between 0 and 65535.`,
    };
  }
  return { ok: true, value: parsed };
}