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Re: CIF dictionary register dictionary
- To: "Discussion list of the IUCr Committee for the Maintenance of the CIFStandard (COMCIFS)" <[email protected]>
- Subject: Re: CIF dictionary register dictionary
- From: John Westbrook <[email protected]>
- Date: Tue, 22 Mar 2005 06:20:49 -0500
- In-reply-to: <[email protected]>
- Organization: Protein Data Bank at Rutgers University
- References: <[email protected]>
Hi Brian, It may be helpful to add the url for the DDL in addition to the version. Otherwise this looks good to me. Regards, John Brian McMahon wrote: > In considering the inclusion of the CIF dictionary register > (ftp://ftp.iucr.org/pub/cifdics/cifdic.register) > on the Volume G CD-ROM, I noticed that there is no formal > description of the tags used in that file to identify the > CIF dictionaries. I have therefore constructed a dictionary > of the data names in that file, which I attach below for your > information and comment. This dictionary can also be found at > > loop_ > _cifdic_dictionary.name > _cifdic_dictionary.version > _cifdic_dictionary.DDL_compliance > _cifdic_dictionary.reserved_prefix > _cifdic_dictionary.URL > _cifdic_dictionary.description > cif_register.dic . 1.4 . > ftp://ftp.iucr.org/pub/cifdics/cif_register.dic > 'Data items used within the register of published CIF dictionaries' > cif_register.dic 1.0 1.4 . > ftp://ftp.iucr.org/pub/cifdics/cif_register_1.0.dic > 'Data items used within the register of published CIF dictionaries' > > and this information will of course be added to the version of the > dictionary registered issued upon publication of Volume G. > > Regards > Brian > > > #------------------------------------------------------------------------------ > > ############################################################################## > # # > # CIF DICTIONARY REGISTER DEFINITIONS # > # ----------------------------------- # > # # > # This dictionary contains the names and definitions of data items # > # recognised by the International Union of Crystallography for identifying # > # and locating public CIF dictionaries in a standard dictionary register. # > # # > # Copyright 2005 International Union of Crystallography # > ############################################################################## > > > data_on_this_dictionary > _dictionary_name cif_register.dic > _dictionary_version 1.0 > _dictionary_update 2005-03-19 > _dictionary_history > ; > 2005-03-19 First version formalises the data items in the > register of CIF dictionaries located at > ftp://ftp.iucr.org/pub/cifdics/cifdic.register > (Brian McMahon) > ; > > ####################### > ## CIFDIC_DICTIONARY ## > ####################### > > data_cifdic_dictionary_[] > _name '_cifdic_dictionary_[]' > _category category_overview > _type null > loop_ _example > _example_detail > # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > ; > loop_ > _cifdic_dictionary.name > _cifdic_dictionary.version > _cifdic_dictionary.DDL_compliance > _cifdic_dictionary.reserved_prefix > _cifdic_dictionary.URL > _cifdic_dictionary.description > cif_core.dic . 1.4 . > ftp://ftp.iucr.org/pub/cifdics/cif_core.dic > 'Core CIF Dictionary' > cif_core.dic 1.0 1.4 . > ftp://ftp.iucr.org/pub/cifdics/cifdic.C91 > 'Original Core CIF Dictionary' > cif_core.dic 2.0.1 1.4 . > ftp://ftp.iucr.org/pub/cifdics/cif_core_2.0.1.dic > 'Core CIF Dictionary' > cif_core.dic 2.1 1.4 . > ftp://ftp.iucr.org/pub/cifdics/cif_core_2.1.dic > 'Core CIF Dictionary' > cif_core.dic 2.2 1.4 . > ftp://ftp.iucr.org/pub/cifdics/cif_core_2.2.dic > 'Core CIF Dictionary' > cif_core.dic 2.3 1.4 . > ftp://ftp.iucr.org/pub/cifdics/cif_core_2.3.dic > 'Core CIF Dictionary' > ; > # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > ; Example 1 - extract from the IUCr CIF dictionary register identifying > several revisions of the core CIF dictionary. > ; > # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > _definition > ; The single category CIFDIC_DICTIONARY contains all the > attributes required to identify and locate an individual > public CIF dictionary file. Although the primary version > of this dictionary is maintained as a DDL1 dictionary, > the data names have an embedded period character after the > category prefix to allow strict isomorphism with a DDL2 > equivalent. > ; > > data_cifdic_dictionary.DDL_compliance > _name '_cifdic_dictionary.DDL_compliance' > _category cifdic_dictionary > _type char > _list yes > _definition > ; The version string of the CIF dictionary definition language > (DDL) used to record data item attributes in the dictionary. > ; > > data_cifdic_dictionary.description > _name '_cifdic_dictionary.description' > _category cifdic_dictionary > _type char > _list yes > _definition > ; A succinct textual description of the dictionary. > ; > > data_cifdic_dictionary.name > _name '_cifdic_dictionary.name' > _category cifdic_dictionary > _type char > _list yes > _list_mandatory yes > _definition > ; The string used as an identifying label within the dictionary > file (as data item _dictionary_name for DDL1 dictionaries > or _dictionary.title for DDL2 dictionaries). > ; > > data_cifdic_dictionary.reserved_prefix > _name '_cifdic_dictionary.reserved_prefix' > _category cifdic_dictionary > _type char > _list yes > _definition > ; A prefix reserved for use within a dictionary not maintained > directly by COMCIFS. The value of this data item must match > an entry in the register of reserved prefixes maintained by > COMCIFS (http://www.iucr.org/iucr-top/cif/spec/reserved.html). > The special CIF value '.' ('inapplicable') is used in the > case of COMCIFS-maintained dictionaries. > ; > > data_cifdic_dictionary.URL > _name '_cifdic_dictionary.URL' > _category cifdic_dictionary > _type char > _list yes > _list_mandatory yes > _definition > ; The uniform resource locator (URL) at which the dictionary > may be found on the web. > ; > > data_cifdic_dictionary.version > _name '_cifdic_dictionary.version' > _category cifdic_dictionary > _type char > _list yes > _list_mandatory yes > _definition > ; The string used as a version identifier within the dictionary > file (as data item _dictionary_version for DDL1 dictionaries > or _dictionary.version for DDL2 dictionaries). This may be > any legitimate string, but COMCIFS practice recommends a > version identifier of the form n.m.l..., where n, m, l, ... > are integers referring to progressively less significant > revision levels. The special CIF value '.' is used to indicate > the current version. > ; > > #------------------------------------------------------------------------------ > > > ------------------------------------------------------------------------ > > _______________________________________________ > comcifs mailing list > [email protected] > http://scripts.iucr.org/mailman/listinfo/comcifs -- ****************************************************************** John Westbrook, Ph.D. Rutgers, The State University of New Jersey Department of Chemistry and Chemical Biology 610 Taylor Road Piscataway, NJ 08854-8087 e-mail: [email protected] Ph: (732) 445-4290 Fax: (732) 445-4320 ******************************************************************
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