/* Copyright (c) 1992, 1993, 1994 by David Moore. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions and restrictions are met: 1. Any copy or redistribution of this software in source form must retain the above copyright notice, this list of conditions and restrictions. 2. Redistributions of this software in binary form must contain the the above copyright notice, this list of conditions and restrictions in the documentation and/or other materials provided with the distribution. 3. Users of this software agree to make their best efforts (a) to return to the above-mentioned authors any improvements or extensions that they make, so that these may be included in future releases; and (b) to inform the authors of noteworthy uses of this software. 3. All materials developed as a consequence of the use of this software shall duly acknowledge such use, in accordance with the usual standards of acknowledging credit in academic research. 4. All commercial advertising materials features or use of this software must contain an acknowledgement of the authors of this package, and unless prior permission is obtained from he authors allowing otherwise the acknowledgement must state that the authors do not endorse or in any other way support the commericial product. 5. Specific files in this package contain additional copyright notices. The restrictions and requirements of those copyright notices apply in addition to these for those files. */