checkCIF procedure

PROC-NAME: ABSTY01 Type_1

PURPOSE: To check that _exptl_absorpt_correction_type is one of the recognised keywords.

CHECKLIST:

• none (none applied)
  
• analytical (analytical from crystal shape)
  
• integration (integration from crystal shape)
  
• numerical (numerical from crystal shape)
  
• gaussian (Gaussian from crystal shape)
  
• empirical (psi-scan of intensities)
  
• psi-scan (psi-scan of intensities)
  
• multi-scan (symmetry-related measurements)
  
• refdelf (refined from delta-F)
  
• sphere (spherical)
  
• cylinder (cylindrical)
  

Otherwise issue ALERT A
   "Alert A The absorption correction doesn't match a standard keyword"

IF extra text has been entered issue General ALERT
   "Extra text has been found in the _exptl_absorpt_correction_type field, which should be only a single keyword. A literature citation should be included in the _exptl_absorpt_process_details field."

Use ONLY one of the specified keywords and no other text under _exptl_absorpt_correction_type. Note that psi-scans should be indicated as 'psi-scan' and not as '\f-scan'. The citation should be in parentheses in the usual citation format. Example: _exptl_absorpt_correction_type psi-scan _exptl_absorpt_process_details '(North et al., 1968)'