CIF file validation server

^*: Uses a DDL1 dictionary where the _type_construct attribute for _enumeration_range has been changed from (_sequence_minimum):((_sequence_maximum)?) to [A-Za-z0-9+%^#@-]+:[A-Za-z0-9+%^#@-]?. The as-written attribute value is not machine-readable and therefore produces a lot of validation warnings.

Background

This is an experimental web-based interface for validating CIF files using the PyCIFRW package described in J. Appl. Cryst. 39, 621---625. Using this interface, you should be able to:

• Validate a DDL1-style data CIF against the listed DDL1 dictionaries;
• Validate a DDL2-style data CIF against the listed DDL2 dictionaries;
• Validate a DDL1-style data CIF against the listed DDL2 dictionaries;
• Validate a DDL1/2 CIF dictionary against an appropriate DDL1/2 dictionary;

Please note that there is a file-size limit of 100K, and that files containing syntax errors will not currently produce an informative error report.

If you are able to produce an error message using a syntactically correct CIF file, or if you disagree with an assessment of block validity, please forward your comments and the error to jrh at anbf2 dot kek dot jp.