Re: Whitespace in atom labels?

On Monday, 27 September 2021 14:00:41 BST Brian McMahon via cif-developers
wrote:
> So long as we're confident that there are no instances with embedded
> white space in the public archives, I would agree to this.

I will run a full check on our archives to check for any such labels.

Mike
===================================================================
>
> Brian
>
> On 27/09/2021 13:20, Mike Hoyland via cif-developers wrote:
> > Very happy to support this.
> >
> > On Friday, 24 September 2021 01:56:43 BST James H via cif-developers
wrote:
> >> Hello cif-developers,
> >>
> >> Atom labels as defined in the DDL1 core dictionary are, strictly
> >> speaking,
> >> allowed to contain whitespace, because the machine-readable parts of DDL1
> >> do not allow this to be expressed, and the text definition doesn't
> >> explicitly exclude it. mmCIF can and has explicitly restricted atom
> >> labels
> >> to not include whitespace in a machine-readable way, so our preference
> >> would be to follow suit. We are therefore contemplating (see
> >> https://github.com/COMCIFS/cif_core/pull/249) restricting atom labels to
> >> not contain whitespace. As far as I know there are no such entries in
> >> COD,
> >> but I thought it worth checking with this group first. Any objections?
> >>
> >> thanks,
> >> James.
>
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--

With best wishes,
Mike Hoyland
Systems Developer
IUCr, Chester
==================================


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