No atom found when processing cif file 2po6

[xvlaurent]

Describe the bug Fpocket fail to parse atom_site section of 2po6 rcsb cif file.

To Reproduce Steps to reproduce the behavior:

1. Go dowload cif file of '2PO6' RCSB entry
2. run fpocket with command fpocket -f 2po6.cif -d -w cif -l 1

Expected behavior Pocket detection should run smoothly.

Screenshots

[pschmidtke]

Issue with revisions in the cif file:

10 6 'Structure model' '_atom_site.B_iso_or_equiv'                   
11 6 'Structure model' '_atom_site.Cartn_x'                          
12 6 'Structure model' '_atom_site.Cartn_y'                          
13 6 'Structure model' '_atom_site.Cartn_z'                          
14 6 'Structure model' '_atom_site.auth_asym_id'                     
15 6 'Structure model' '_atom_site.auth_atom_id'                     
16 6 'Structure model' '_atom_site.auth_comp_id'                     
17 6 'Structure model' '_atom_site.auth_seq_id'                      
18 6 'Structure model' '_atom_site.label_asym_id'                    
19 6 'Structure model' '_atom_site.label_atom_id'                    
20 6 'Structure model' '_atom_site.label_comp_id'                    
21 6 'Structure model' '_atom_site.label_entity_id'                  
22 6 'Structure model' '_atom_site.type_symbol'  

double check how the molfile parser is parsing this (false positive hits here)

[pschmidtke]

likely the issue is here:

only paring if _atom_site. is present, not where it is on the line