Discussion List Archives

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: CIF2 syntax document for COMCIFS approval

After careful consideration I vote "no" on the proposed new CIF syntax,
although I agree with the general direction. I'm deeply concerned about
introducing new syntax for delimiting strings without solving a
long-standing problem. James explained to me that the "extra
multi-line text delimiters are provided to further reduce the likelihood of 
running into text that is impossible to delimit." I strongly believe that
the problem needs to be solved completely, for example by adopting the
widely used backslash escape semantics.
I would agree to the proposal after either
  - an escape mechanism for the new triple-quoted strings is added or
    alternatively
  - the new triple-quote syntax is removed, so that it can be introduced
    later with an associated escape mechanism.

Ralf

----- Original Message ----
> From: James Hester <jamesrhester@gmail.com>
> To: Discussion list of the IUCr Committee for the Maintenance of the CIF  
>Standard (COMCIFS) <comcifs@iucr.org>
> Sent: Tue, November 16, 2010 3:28:32 PM
> Subject: CIF2 syntax document for COMCIFS approval
> 
> Dear COMCIFS,
> 
> After more than a year of discussion, the DDLm working  group has
> converged on a specification for a new CIF syntax, dubbed  "CIF2".  The
> one-page document describing the changes relative to CIF1  is available
> on the IUCr website  at
>http://www.iucr.org/__data/assets/pdf_file/0004/47434/cif2_syntax_changes_jrh20101115.pdf.
>.
> A  record of the extensive discussions of the DDLm working group is
> available  at http://www.iucr.org/resources/lists/ddlm-group, with
> encoding-specific  discussions taking place  at
> http://www.iucr.org/resources/lists/cif2-encoding
> 
> This CIF2  specification is now presented to COMCIFS for approval. I
> urge all COMCIFS  voting members to register their vote in a timely
> fashion.
> 
> James  Hester
> COMCIFS Chair
> -- 
> T +61 (02) 9717 9907
> F +61 (02) 9717  3145
> M +61 (04) 0249  4148
> _______________________________________________
> comcifs mailing  list
> comcifs@iucr.org
> http://scripts.iucr.org/mailman/listinfo/comcifs
> 
_______________________________________________
comcifs mailing list
comcifs@iucr.org
http://scripts.iucr.org/mailman/listinfo/comcifs

Reply to: [list | sender only]
International Union of Crystallography

Scientific Union Member of the International Council for Science (admitted 1947). Member of CODATA, the ICSU Committee on Data. Member of ICSTI, the International Council for Scientific and Technical Information. Partner with UNESCO, the United Nations Educational, Scientific and Cultural Organization in the International Year of Crystallography 2014.

ICSU Scientific Freedom Policy

The IUCr observes the basic policy of non-discrimination and affirms the right and freedom of scientists to associate in international scientific activity without regard to such factors as ethnic origin, religion, citizenship, language, political stance, gender, sex or age, in accordance with the Statutes of the International Council for Science.