DDL dictionary version 1.4.1

_type

Name:
'_type'

Definition:

   The type specification of the defined item.

   Type 'numb' identifies items which must have values that are
   identifiable numbers. The acceptable syntax for these numbers
   is application-dependent, but the formats illustrated by the
   following identical numbers are considered to be interchangeable:
   42   42.000  0.42E2  .42E+2  4.2E1  420000D-4  0.0000042D+07

   Type 'char' identifies items which need not be interpretable
   numbers. The specification of these items must comply with the
   STAR syntax specification of either a 'contiguous single-line
   string' bounded by blanks or blank-quotes, or a 'text string'
   bounded by semicolons as the first character of a line.

   Type 'null' identifies items which appear in the dictionary
   for data-definition and descriptive purposes. These items
   serve no function outside the dictionary files.

The data value must be one of the following:

numb numerically interpretable string

char character or text string

null for dictionary purposes only

Type: char

Category: type

		contents
		indexes
		sample pages
		purchase
		CIF dictionaries

Crystallographic Information Framework

DDL dictionary version 1.4.1

_type

International Tables for Crystallography

Volume G: Definition and exchange of crystallographic data

Edited by S. R. Hall and B. McMahon

IUCrData