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International
Tables for Crystallography Volume G Definition and exchange of crystallographic data Edited by S. R. Hall and B. McMahon © International Union of Crystallography 2006 |
International Tables for Crystallography (2006). Vol. G. ch. 5.4, p. 528
Section 5.4.6.2. General control variables
a
Department of Mathematics and Computer Science, Kramer Science Center, Dowling College, Idle Hour Blvd, Oakdale, NY 11769, USA, and bSchool of Biomedical and Chemical Sciences, University of Western Australia, Crawley, Perth, WA 6009, Australia |
These variables control CIFtbx commands. The user may accept the default values or may store new values into these variables to change the behaviour of the commands.
alias_
: logical variable to control the use of data-name aliases for input items. If set to .true., aliases from the input dictionary may be used (see Section 5.4.7![[link]](/graphics/greenarr.gif)
). The default is .true..
append_ : logical variable to control reuse of the direct-access file. If set to .true., it will cause each call to ocif_ to append the information found to the current CIF. The default is .false..
line_ : integer variable to set the input/output line limit for processing a CIF. The default value is 80 characters. This limit counts the visible printable characters of the line, not the system-dependent line terminators.
nblank_ : logical variable to control the treatment of input blank strings. If set to .true., char_ or test_, it will return the type as `null' rather than `char' when encountering a quoted blank.
recbeg_ : integer variable to give the record number of the first record to be used. May be changed by the user to restrict access to a CIF.
recend_ : integer variable to give the record number of the last record to be used. May be changed by the user to restrict access to a CIF.
tabx_ : logical variable is set to .true. for tab stops to be expanded to blanks during the reading of a CIF. The default is .true..
