bool OEReadCIFFile(oemolistream &ifs, OEMolBase &mol, unsigned int flavor)
Reads a molecule from the specified input stream, ‘ifs’, in CIF or mmCIF file format. The reader peeks into the file to check for specific tags to determine whether it is a CIF or mmCIF file, given that the extension used is the same. The mmCIF reader can be enforced by setting the OEFormat_MMCIF on the input stream. A number of different format variants are supported by the use of ‘flavor’ parameter from the OEIFlavor_CIF or the OEIFlavor_MMCIF namespace. This function returns true if the operation was successful, and false if an end-of-file was encountered.
For mmCIF reading, the implementation particularly of the metadata is partial and limited in scope to what is needed for the SPRUCETK. That means converting to a PDB file will result in a loss of header data.