removed when the heavy atom they are connected to is not
in its default valence state, while it has one of the
acceptable valence states (otherwise it still has to be
removed for sanitization purposes)
- updated the MMFF validation suite SMILES accordingly
Code/ForceField/MMFF/testMMFFForceField.h
- re-prepared the SDF files from their MOL2 counterparts present in the
original MMFF validation suites. For this purpose a C++ program was
written which only uses information in MOL2 files and in .fc files
provided by Halgren. The C++ program does not depend on RDKit.
- re-prepared the SMILES files from their SDF counterparts using
a Python script which calls MolToSmiles()
- found an issue which affects 2 files in the test suite, namely
ERULE_05 and PO02A (only the hypervalent notation). The issue is
connected with removal of hydrogens bonded to phosphorous and
appears to be fixed by the modifications in Code/GraphMol/AddHs.cpp
and Code/GraphMol/SmilesParse/SmilesWrite.cpp. This issue is
independent of the changes ini the SDF files; indeed, it has
always been present, and had been previously addressed by
manual correction of the two SMILES strings
instead of using the property map interface.
A nice side-effect is that the wart of having to use property maps to loop over bonds or atom neighbors
is now gone.
This potentially breaks lots of client C++ code.
update aromaticity to require unsaturation at single-atom donors
test the above two things
This is not necessarily completely stable, but all current tests pass
(once obvious changes have been made). We will just have to see where
the aromaticity changes cause trouble going forward.
