Hi all,

I am trying to get my head around the tautomer function. Here a few issues,
could you help me getting into touch with Tim, or someone else being able
to help with the tautomerization functionality?

First, the canonical tautomer function is less tautomeric than I would wish
for.
The following molecules are not normalized correctly, I get two different
tautomeric versions. Test file and debugging log files are attached.
In both cases I would expect: CC(=O)Cc1ccccc1


Second, the full enumeration is just not working. In the case of NOT
defining "-c" I would expect to get all possible tautomers as defined by
the Functor class
class Functor : public OpenBabel::TautomerFunctor
but I just get one structure all the time? Any clues what goes wrong?

Cheers
/.Joerg
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Atom Types:
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EnumerateRecursive
  Assigned 8 Acceptor
    -> Rule 5: Assign 7-8 Double
    -> Rule 5: Assign 5-0 Double
    -> Rule 5: Assign 1-2 Double
    -> Rule 4: Assign 2-3 Single
    -> Rule 4: Assign 4-5 Single
    -> Rule 5: Assign 3-4 Double
  --> LeafNode reached...
Change?
8 
A 
8 
A 
  Backtrack... 8
CC(=O)Cc1ccccc1 
Atom Types:
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  9: Other
EnumerateRecursive
  Assigned 8 Donor
    -> Rule 1: Assign 7-8 Single
    -> Rule 5: Assign 6-7 Double
    -> Rule 4: Assign 0-6 Single
    -> Rule 5: Assign 5-0 Double
    -> Rule 5: Assign 1-2 Double
    -> Rule 4: Assign 2-3 Single
    -> Rule 4: Assign 4-5 Single
    -> Rule 5: Assign 3-4 Double
  --> LeafNode reached...
Change?
8 
D 
  Change 8 to Acceptor
    -> Rule 5: Assign 1-2 Double
    -> Rule 5: Assign 7-8 Double
    -> Rule 4: Assign 2-3 Single
    -> Rule 4: Assign 6-7 Single
    -> Rule 5: Assign 3-4 Double
    -> Rule 5: Assign 0-6 Double
    -> Rule 4: Assign 5-0 Single
    -> Rule 4: Assign 4-5 Single
invalid Acceptor/Hybridized 1
8 
A 
  Backtrack... 8
CC(=Cc1ccccc1)O 

Attachment: test4.sdf
Description: Binary data

Atom Types:
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EnumerateRecursive
  Assigned 8 Acceptor
    -> Rule 5: Assign 7-8 Double
    -> Rule 5: Assign 5-0 Double
    -> Rule 5: Assign 1-2 Double
    -> Rule 4: Assign 2-3 Single
    -> Rule 4: Assign 4-5 Single
    -> Rule 5: Assign 3-4 Double
  --> LeafNode reached...
CC(=O)Cc1ccccc1 
Change?
8 
A 
8 
A 
  Backtrack... 8
Atom Types:
  0: Hybridized
  1: Hybridized
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EnumerateRecursive
  Assigned 8 Donor
    -> Rule 1: Assign 7-8 Single
    -> Rule 5: Assign 6-7 Double
    -> Rule 4: Assign 0-6 Single
    -> Rule 5: Assign 5-0 Double
    -> Rule 5: Assign 1-2 Double
    -> Rule 4: Assign 2-3 Single
    -> Rule 4: Assign 4-5 Single
    -> Rule 5: Assign 3-4 Double
  --> LeafNode reached...
C/C(=C\c1ccccc1)/O      
Change?
8 
D 
  Change 8 to Acceptor
    -> Rule 5: Assign 1-2 Double
    -> Rule 5: Assign 7-8 Double
    -> Rule 4: Assign 2-3 Single
    -> Rule 4: Assign 6-7 Single
    -> Rule 5: Assign 3-4 Double
    -> Rule 5: Assign 0-6 Double
    -> Rule 4: Assign 5-0 Single
    -> Rule 4: Assign 4-5 Single
invalid Acceptor/Hybridized 1
8 
A 
  Backtrack... 8
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