// also takes one string with multiple lines
static L<Web> websFromCALStructures(S... structures) {
  if (l(structures) == 1) structures = toStringArray(tlft_j(first(structures)));
  ret map webFromCALStructure(structures);
}

static L<Web> webFromCALStructures(L<S> structures) {
  ret map webFromCALStructure(structures);
}