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Re: [ddlm-group] Close quotes not followed by whitespace

Dear Colleagues,

   Please do not misunderstand my position.  I recognize that I cannot
win on the issue of the handling of the reverse solidus in CIF2, and
believe we should move on.  That does not mean that I think that
this is a sound decision for the future of CIF2, just that it is
the COMCIFS decision for the definition of CIF2.  We have other
issues to discuss.


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


On Fri, 27 Nov 2009, James Hester wrote:

> You are correct that we have agreed that CIF2 treats a close quote followed
> by non-whitespace as a syntax error. A not inconsiderable quantity of bytes
> and time were spent reaching this decision.
> On Fri, Nov 27, 2009 at 1:13 PM, Joe Krahn <krahn@niehs.nih.gov> wrote:
>       CIF2 no longer skips close-quotes that are not followed by
>       whitespace. I
>       assume that close-quotes still need trailing whitespace, and
>       that it is
>       simply a syntax error for a close quote followed by
>       non-whitespace.
>       Therefore, it should be possible to allow CIF1 input for
>       backwards
>       compatibility by accepting these invalid close-quotes on input.
>       That
>       should help minimize conflicts with adopting CIF2. The only
>       input that
>       would be misinterpreted would be a quote character written as
>       """, most
>       software will have written as '"', using the opposite quote
>       character.
>       So, this:
>       ;\
>       ;\
>       ;
>       is just a syntax error in CIF2, or can be accepted as a
>       line-folded ";"
>       in CIF1.
>       Joe
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