Hi Peter, On Thu, Sep 19, 2013 at 10:28:22AM +0100, Peter Keller wrote:
> > http://www.iucr.org/resources/cif/spec/version1.1/cifsyntax#bnf ... > > This grammar seems to be based on the 1994 J. Chem. Inf. Comp. Sci one, > which has some serious errors. I would strongly discourage anyone from > trying to translate it into input for any kind of parser generator. I > suggest that you use International Tables vol. G instead (chapter 2.1 or > section 2.2.7). It is unfortunate that the later, correct, grammar is I don't have these tables, but could you be more specific what's incorrect in the version from the IUCR website? I just googled cif lexers and the two ones I looked into also refer to the same URL that I used: cctbx: http://cci.lbl.gov/cctbx_sources/ucif/cif.g JMol: http://caagt.ugent.be/CaGe/jmol/org/jmol/adapter/smarter/CifReader.RidiculousFileFormatTokenizer.html If there are discrepancies between IUCR website and IT vol.G and it would be worth to list them. Marcin -- Scanned by iCritical.
