/usr/lib/swi-prolog/xpce/README is in swi-prolog-x 6.6.4-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | Contents
This directory contains XPCE, an object-oriented symbolic programming
environment for User Interfaces. XPCE was designed to be
language-independant. In practice it has gained popularity with Prolog
and many useful libraries are now available for Prolog only. Therefore
we will often talk about XPCE/Prolog.
Authors
The development of XPCE was started by Anjo Anjewierden. The package was
then called PCE. He designed and implemented version 1 and 2. Version 3
is the result of a joint effort from Anjo Anjewierden and Jan
Wielemaker. This was the last version based on SunView. Version 4 and 5
have been designed and implemented by Jan Wielemaker. It makes the full
object oriented mechanisms underlying PCE available to the Prolog
programmer and has bindings for X-windows (X11) and MS-Windows (Win32).
Copyrights
The copyright to XPCE is owned by the University of Amsterdam. The XPCE
kernel (the C sources) are distributed under the Lesser GNU General
Public License (LGPL). The XPCE/Prolog libraries are distibuted under
the normal GNU General Public License (GPL) with an additional statement
that allows using these files to create an executable program without
the requirement on the licence conditions. This is the same as the
SWI-Prolog copyright. See http://www.swi-prolog.org/license.html for
details and discussion.
Installation
See the file INSTALL for installing the binary version. See COMPILATION
for installing from the sources. Further information on building XPCE is
also available from the SWI-Prolog and XPCE web pages.
Bugs
Bugs should be reported to xpce-bugs@swi.psy.uva.nl. Please indicate the
XPCE version and Prolog/Lisp system used (if not SWI-Prolog). If the
error can be isolated, it will generally be fixed, so it is in your
interrest to report the error in such a way that we can reproduce it.
Warranty
The authors, nor the Department or University PROVIDE ANY WARRANTY. See
the license agreement for further details.
|