Function normalizeLegacyEditmodeBlock

packages/shared/src/editmode.ts:187–201

(source: string)

 * boolean objects that older Open CoDesign bundled templates used.
 */
export function normalizeLegacyEditmodeBlock(source: string): string | null {
  const block = findMarkerBlock(source, 'EDITMODE');
  if (block === null) return null;
  const raw = block.inner.trim();
  if (raw.length === 0) return null;
  try {
    JSON.parse(raw);
    return null;
  } catch {
    // Fall through to the legacy flat-object parser.
  }
  const tokens = parseLegacyEditmodeObject(raw);
  if (tokens === null) return null;
  return replaceMarkerBlock(source, 'EDITMODE', JSON.stringify(tokens, null, 2));
}

/**
 * Kept for older runtime call sites. v0.2 no longer repairs missing EDITMODE