Function buildNameTree

src/document/name-tree.ts:313–329

(entries: Array<[string, PdfRef]>)

 * @returns A PdfDict representing the name tree root
 */
export function buildNameTree(entries: Array<[string, PdfRef]>): PdfDict {
  // Sort entries by key (lexicographic)
  const sorted = [...entries].sort((a, b) => compareKeys(a[0], b[0]));

  // Build flat /Names array: [key1, ref1, key2, ref2, ...]
  const namesArray: PdfObject[] = [];

  for (const [key, ref] of sorted) {
    namesArray.push(PdfString.fromString(key));
    namesArray.push(ref);
  }

  const dict = new PdfDict();
  dict.set("Names", new PdfArray(namesArray));

  return dict;
}