Generating new user function 'read_xyz()'.
This is Han's patch https://gna.org/task/download.php?file_id=13148 attached to the task http://gna.org/task/?7404.
The user function 'read_xyz()' was generated in the prompt/structure.py by duplication of 'read_pdb()' and modified accordingly.
Authored by: bugman 2011-06-10
Parent: [r12957]
Child: [r12959]
