Crystallographic Information Framework



QUASAR is a CIF syntax checking and file manipulation tool. It was described as the prototype CIF application in the original CIF specification paper.



This prototype implementation is no longer actively maintained. Much of the functionality is provided by cif2cif.

Language and platform

The software is written in Fortran77 and should compile and run in a command-line environment on any common operating system with a suitable Fortran compiler. If a compiler does not support file 'include' directives, the user must insert the contents of the file 'quasar.cmn' into each subroutine as described in the comment section at the start of quasar.f.


  • Installation: Copy the text file quasar.txt into an empty directory and split it into distinct files as described in the Installation instructions
    copy the individual files to the build directory. Then compile the source file quasar.f, e.g.
     f77 -o quasar quasar.f 
  • man pages:

Terms and conditions of use

Copyright in the software © the authors.
Authors: S. R. Hall and R. Sievers

The software is distributed here under the standard terms and conditions of use applying to software associated with International Tables for Crystallography Volume G. Queries concerning any other use should be directed to


Hall, S. R., Allen, F. H. & Brown, I. D. (1991). The Crystallographic Information File (CIF): a new standard archive file for crystallography. Acta Cryst. A47, 655-685. [Details] See also

Hall, S. R. & Sievers, R. (1993). CIF applications. I. QUASAR: for extracting data from a CIF. J. Appl. Cryst. 26, 469-473. [details]