Re: DDL Version 2.0.16
Peter Keller (bsspak@bath.ac.uk)
Tue, 20 Jun 1995 11:19:23 +0100 (BST)
On Fri, 9 Jun 1995, John Westbrook wrote:
>
> Greetings...
>
> I have placed version 2.0.16 of the DDL on our server. This version reflects
> a few minor structural changes and my attempt to implement suggestions
> that I have received over the past few months. Thank you to all have
> contributed comments.
Dear all,
Unfortunately, constructions such as:
save_DATA_BLOCK
_category.description
;
Attributes defining the characteristics of a data block.
;
_category.id data_block
mean that the DDL is no longer STAR conformant (!) - recall that in the
STAR specification (Hall and Spadaccini, J. Chem. Inf. Comput. Sci. vol
34, p505-508, 1994) we have the definition:
<data_heading> ::= data_<non_blank_char>+
My own CIF-restricted STAR grammar produces a syntax error at this point,
and the Star_Base program coredumps (under IRIX 5.2), as it also
interprets "data_block" as a data heading:
(d) DATA_NAME
(d) _category.id
(d) DATA_HEADING
(d) data_block
(e) Segmentation fault (core dumped)
Data items such as data_block or data_block_group should be quoted, just
as data items which begin with an underscore are. Here is the diff output
to correct this:
271c271
< _category.id data_block
---
> _category.id 'data_block'
290,291c290,291
< '_data_block.id' data_block implicit
< '_data_block_methods.data_block_id' data_block_methods implicit
---
> '_data_block.id' 'data_block' implicit
> '_data_block_methods.data_block_id' 'data_block_methods' implicit
313c313
< _item.category_id data_block
---
> _item.category_id 'data_block'
328c328
< _category.id data_block_methods
---
> _category.id 'data_block_methods'
1753c1753
< '_data_block_methods.method_id' data_block_methods yes
---
> '_data_block_methods.method_id' 'data_block_methods' yes
Regards,
Peter.
========================================================================
Peter Keller. \
Dept. of Biology and \ "Not even the greatest nonsense is beyond
Biochemistry, \ the reach of human invention."
University of Bath, \
Bath, BA2 7AY, UK. \ --- Ryszard Kapuscinski
------------------------------\-----------------------------------------
Tel. (+44/0)1225 826826 x 4302 | Email: P.A.Keller@bath.ac.uk (Internet)
Fax. (+44/0)1225 826449 | P.A.Keller%bath.ac.uk@UKACRL (BITNET)
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