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From: Herbert J. Bernstein <yaya@bernstein-plus-sons.com>
To: Group finalising DDLm and associated dictionaries <ddlm-group@iucr.org>
Sent: Thursday, 13 January, 2011 17:17:41
Subject: [ddlm-group] Relationship asmong CIF2, STAR, CIF1 and Python
James has requeested that I formally send a message to this list
about a matter discussed recently in independent email in order
to ensure a record. At first I declined to do so, but after
reflection, I have decided to do as James has asked.
I have withdrawn my vote in COMCIFS in support of CIF2 going
forward at this time. I have done so because, after emails
from Nick and Brian, it has become clear to me that I was
making false assumptions about the relationship between
CIF2 and STAR. I believe that a zero-based discussion is
now needed on what the relationship should be among CIF2,
STAR, CIF1 and Python to best serve the interests
of the crystallographic community. I do not know what
is best and do not know how long such a discussion may take.
I leave it to James, Nick and Brian to decide if Nick's and
Brian's messages should be posted on this list for the record.
=====================================================
Herbert J. Bernstein, Professor of Computer Science
Dowling College, Kramer Science Center, KSC 121
Idle Hour Blvd, Oakdale, NY, 11769
+1-631-244-3035
yaya@dowling.edu
=====================================================
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Re: [ddlm-group] Relationship asmong CIF2, STAR, CIF1 and Python
- To: Group finalising DDLm and associated dictionaries <ddlm-group@iucr.org>
- Subject: Re: [ddlm-group] Relationship asmong CIF2, STAR, CIF1 and Python
- From: SIMON WESTRIP <simonwestrip@btinternet.com>
- Date: Thu, 13 Jan 2011 18:51:09 +0000 (GMT)
- In-Reply-To: <alpine.BSF.2.00.1101131202050.27153@epsilon.pair.com>
- References: <AANLkTimdAavg2KCjPZTj1xDYXDQ1JLiQCkQb4snyBErZ@mail.gmail.com><alpine.BSF.2.00.1101120536370.71134@epsilon.pair.com><AANLkTimA8+YXbJ8yS0AtKgFjq9221oMFjR6habn6DsXR@mail.gmail.com><alpine.BSF.2.00.1101120834010.42232@epsilon.pair.com><8F77913624F7524AACD2A92EAF3BFA54166D7D1EA8@SJMEMXMBS11.stjude.sjcrh.local><alpine.BSF.2.00.1101121400400.85750@epsilon.pair.com><alpine.BSF.2.00.1101121556380.31518@epsilon.pair.com><698308.91583.qm@web87015.mail.ird.yahoo.com><alpine.BSF.2.00.1101121845060.90622@epsilon.pair.com><alpine.BSF.2.00.1101131202050.27153@epsilon.pair.com>
I am sorry to hear this.
For what its worth, although I assume CIF2 syntax as proposed to COMCIFS would be
compliant with STAR syntax (which I have assumed was due to be revised shortly to
introduce the new delimiters/list structures etc.), it would be useful to clarify the
extent of the relationship, so that we do not find ourselves discussing features that
conflict with this relationship.
For example, I can see the introduction of new delimiters such as r""" conflicting with STAR,
but does a proposal such as the line-folding protocol also conflict with STAR, or is
the relationship such that they share the same syntax as far as the lexer is concerned, and
so the line-folding protocol does not break the relationship?
Who knows?
Cheers
Simon
For what its worth, although I assume CIF2 syntax as proposed to COMCIFS would be
compliant with STAR syntax (which I have assumed was due to be revised shortly to
introduce the new delimiters/list structures etc.), it would be useful to clarify the
extent of the relationship, so that we do not find ourselves discussing features that
conflict with this relationship.
For example, I can see the introduction of new delimiters such as r""" conflicting with STAR,
but does a proposal such as the line-folding protocol also conflict with STAR, or is
the relationship such that they share the same syntax as far as the lexer is concerned, and
so the line-folding protocol does not break the relationship?
Who knows?
Cheers
Simon
From: Herbert J. Bernstein <yaya@bernstein-plus-sons.com>
To: Group finalising DDLm and associated dictionaries <ddlm-group@iucr.org>
Sent: Thursday, 13 January, 2011 17:17:41
Subject: [ddlm-group] Relationship asmong CIF2, STAR, CIF1 and Python
James has requeested that I formally send a message to this list
about a matter discussed recently in independent email in order
to ensure a record. At first I declined to do so, but after
reflection, I have decided to do as James has asked.
I have withdrawn my vote in COMCIFS in support of CIF2 going
forward at this time. I have done so because, after emails
from Nick and Brian, it has become clear to me that I was
making false assumptions about the relationship between
CIF2 and STAR. I believe that a zero-based discussion is
now needed on what the relationship should be among CIF2,
STAR, CIF1 and Python to best serve the interests
of the crystallographic community. I do not know what
is best and do not know how long such a discussion may take.
I leave it to James, Nick and Brian to decide if Nick's and
Brian's messages should be posted on this list for the record.
=====================================================
Herbert J. Bernstein, Professor of Computer Science
Dowling College, Kramer Science Center, KSC 121
Idle Hour Blvd, Oakdale, NY, 11769
+1-631-244-3035
yaya@dowling.edu
=====================================================
_______________________________________________
ddlm-group mailing list
ddlm-group@iucr.org
http://scripts.iucr.org/mailman/listinfo/ddlm-group
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