yap-6.3/Logtalk/LICENSE

The "Artistic License"

Preamble

The intent of this document is to state the conditions under which a
Package may be copied, such that the Copyright Holder maintains some
semblance of artistic control over the development of the package, while
giving the users of the package the right to use and distribute the
Package in a more-or-less customary fashion, plus the right to make
reasonable modifications.

Definitions

	"Package" refers to the collection of files distributed by the 
	Copyright Holder, and derivatives of that collection of files 
	created through textual modification.

	"Standard Version" refers to such a Package if it has not been 
	modified, or has been modified in accordance with the wishes of 
	the Copyright Holder as specified below.

	"Copyright Holder" is whoever is named in the copyright or 
	copyrights for the package.

	"You" is you, if you're thinking about copying or distributing 
	this Package.

	"Reasonable copying fee" is whatever you can justify on the basis 
	of media cost, duplication charges, time of people involved, and 
	so on. (You will not be required to justify it to the Copyright 
	Holder, but only to the computing community at large as a market 
	that must bear the fee.)

	"Freely Available" means that no fee is charged for the item 
	itself, though there may be fees involved in handling the item. 
	It also means that recipients of the item may redistribute it 
	under the same conditions they received it.

1. You may make and give away verbatim copies of the source form of the
Standard Version of this Package without restriction, provided that you
duplicate all of the original copyright notices and associated
disclaimers.

2. You may apply bug fixes, portability fixes and other modifications
derived from the Public Domain or from the Copyright Holder. A Package
modified in such a way shall still be considered the Standard Version.

3. You may otherwise modify your copy of this Package in any way,
provided that you insert a prominent notice in each changed file stating
how and when you changed that file, and provided that you do at least
ONE of the following:

	a.place your modifications in the Public Domain or otherwise make 
	them Freely Available, such as by posting said modifications to 
	Usenet or an equivalent medium, or placing the modifications on a 
	major archive site such as uunet.uu.net, or by allowing the 
	Copyright Holder to include your modifications in the Standard 
	Version of the Package.

	b.use the modified Package only within your corporation or 
	organization.

	c.rename any non-standard executables so the names do not conflict 
	with standard executables, which must also be provided, and provide 
	a separate manual page for each non-standard executable that clearly
	documents how it differs from the Standard Version.

	d.make other distribution arrangements with the Copyright Holder.

4. You may distribute the programs of this Package in object code or
executable form, provided that you do at least ONE of the following:

	a.distribute a Standard Version of the executables and library 
	files, together with instructions (in the manual page or equivalent) 
	on where to get the Standard Version.

	b.accompany the distribution with the machine-readable source of 
	the Package with your modifications.

	c.give non-standard executables non-standard names, and clearly 
	document the differences in manual pages (or equivalent), together 
	with instructions on where to get the Standard Version.

	d.make other distribution arrangements with the Copyright Holder.

5. You may charge a reasonable copying fee for any distribution of this
Package. You may charge any fee you choose for support of this Package.
You may not charge a fee for this Package itself. However, you may
distribute this Package in aggregate with other (possibly commercial)
programs as part of a larger (possibly commercial) software distribution
provided that you do not advertise this Package as a product of your



own. You may embed this Package's interpreter within an executable of
yours (by linking); this shall be construed as a mere form of
aggregation, provided that the complete Standard Version of the
interpreter is so embedded.

6. The scripts and library files supplied as input to or produced as
output from the programs of this Package do not automatically fall under
the copyright of this Package, but belong to whomever generated them,
and may be sold commercially, and may be aggregated with this Package.
If such scripts or library files are aggregated with this Package via
the so-called "undump" or "unexec" methods of producing a binary
executable image, then distribution of such an image shall neither be
construed as a distribution of this Package nor shall it fall under the
restrictions of Paragraphs 3 and 4, provided that you do not represent
such an executable image as a Standard Version of this Package.

7. C subroutines (or comparably compiled subroutines in other languages)
supplied by you and linked into this Package in order to emulate
subroutines and variables of the language defined by this Package shall
not be considered part of this Package, but are the equivalent of input
as in Paragraph 6, provided these subroutines do not change the language
in any way that would cause it to fail the regression tests for the
language.

8. Aggregation of this Package with a commercial distribution is always
permitted provided that the use of this Package is embedded; that is,
when no overt attempt is made to make this Package's interfaces visible
to the end user of the commercial distribution. Such use shall not be
construed as a distribution of this Package.

9.The name of the Copyright Holder may not be used to endorse or promote
products derived from this software without specific prior written
permission.

10.THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.

The End