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Re: [ddlm-group] Space as a list item separator

Dear James,

   The point is that we will need to make it easy for people working with
CIF 1 and CIF 1.1 based tools to cobble together valid CIF 2 data.  The
most important bit will be a way to include vectors and matrices in their
data.  This will allow them to do it.

   Please note that it hase taken several years to just get to the point
where we are beginning to rigorously define CIF 2.  If we are lucky, it
will only take a few years to have a full set of tools to allow users
and software writers to reliably produce true CIF 2 data.


  Herbert J. Bernstein, Professor of Computer Science
    Dowling College, Kramer Science Center, KSC 121
         Idle Hour Blvd, Oakdale, NY, 11769


On Tue, 1 Dec 2009, James Hester wrote:

> Dear Herbert: as CIF 1.1 doesn't define lists, I'm not sure why you suggest that the
> example below is a valid tag.
> On Tue, Dec 1, 2009 at 12:36 AM, Herbert J. Bernstein <yaya@bernstein-plus-sons.com>
> wrote:
>       Sorry something got lost in the prior message.  It should have
>       read:
>             Dear Colleagues,
>              Back to the question of commas.  If you accept the desirability
>             of
>             having a CIF 1.5, commas in lists become very useful.  Someone
>             with
>             a CIF 1.1 editor will be able to prepare a CIF 1.5 file for many
>             useful cases by doing all lists with commas and no embedded blanks
>             as long as they can make their lists fit on single lines.  In CIF
>             1.1
>             [[1,2,3],[4,5,6],[7,8,9]]
>             is a valid value for a tag, but
>             [[1 2 3] [4 5 6] [7 8 9]]
> is not.
> No, neither example is a valid CIF 1.1 tag.  CIF 1.1 explicitly excludes brackets as the
> first character of a non-delimited string.
>             Having the option of commas in lists will help to smooth the
>             transition for at least some people.
> --
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> F +61 (02) 9717 3145
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