h4h5tools

Enhancement: convert a global SDS attribute into an HDF5 dataset if the content is too long to be an HDF5 attribute

An HDF5 attribute seems to put a limit on the length. H5Acreate() rejected when the length is 65536. This changelist makes h4toh5 convert that long attribute into an HDF5 dataset only if
  - the original attribute is a global SDS attribute
  - the attribute name contains "metadata" or "Metadata"

Since it is not easy to figure out the maximum length, it still tries to create an HDF5 attribute first. If it fails, it tries to create an HDF5 dataset.

This problem was revealed while convering AIRS.2002.08.24.L3.RetStd_H008.v4.0.21.0.G06104133343.hdf.