content: {- |
  Description :  datastructures and functions shared between interfaces (PGIP and GUI)
  Copyright   :  (c) Otto-von-Guericke University of Magdeburg
  License     :  GPLv2 or higher, see LICENSE.txt
  
  
   The "Interfaces" folder contains datastructures and functions that are 
   shared between interfaces (PGIP and GUI). For example
   history should be stored in the same way by both , so 
   that one could in principle switch from one to the other.
   Also there is code that gets duplicated just because 
   both PGIP and GUI need it and the interfaces should be 
   independent one from the other. This folder will contain
   all common functions / datastructures. 
  
   Initially I wanted to make a new interface (abstract interface)
   that would do history management and report all results through
   strings. The above interfaces would just use this interface
   to transform the development graph, and use the string to 
   find out results about the commands. But I noticed that 
   GUI and PGIP are so different in how they function this 
   would imply altering to much both interfaces, and decided
   just to have common datastructures and functions that could
   be shared.
  
   Note that PGIP interface is done so that it can support any  
   other type of interface that comunicates through text ( for 
   example remotely through xml blocks send between user/hets, 
   through files that contains commands .. etc.)
  
   Razvan (r.pascanu@jacobs-university.de)
  
  -}
  
  module Interfaces where
  