
JSearch and associated documentation files (the "Software") are copyright
(c) 1994-99 by Glenn Bach (the "Author").

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

This file shall be included unchanged in all copies or substantial portions
of the Software.

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The Software is distributed under the SYPP license:

Preamble

In an ideal world, all software would be free.  In the real world, however,
most people cannot afford to give away what they create because they do not
have sufficient income from other sources.

Shareware is the accepted compromise for stand-alone programs.  Users only
have to pay if the software is useful.  SYPP provides an equivalent
compromise for libraries of code by asking the program's author to share
the profits from the program with the library's author.

License

The Software is free for non-commercial development.

Any commercial or government use of the Software, including internal use,
must be accompanied by a license agreement to be negotiated on a
case-by-case basis.  The Software is free during the initial evaluation.

Shareware is considered a commercial use, so it requires a license
agreement.   However, one is only required to pay a one-time library
shareware fee for the Software and only after the program has brought in 10
times as much as the library shareware fee.  (This means that one only
needs to pay when the program is successful, thereby avoiding any financial
risk to the shareware author.)

The Software may be freely redistributed in its original form.

  If you make modifications to the Software, you may distribute them in a
  separate package as a set of patches.  Modifications must not alter or
  remove this license or any copyright notices.  The Authors are granted a
  non-exclusive right to distribute and/or merge your modifications in
  future releases.

  If you distribute a compiled version of the modified Software, it must
  clearly display the fact that it is not built from the original
  distribution and must give clear directions for obtaining both the
  original distribution and the source for the modifications, without any
  charge beyond the costs of data transfer.

If you legally obtain a program that requires the Software in order to run,
then you can install the Software on your computer at no charge as long as
you use it only to run that program.

Notes

The following text is included for clarification only.  It is not part of
the official license.

The terms of the commerical license are intentionally vague to allow
flexibility.  The spirit of SYPP suggests that one negotiate a fraction of
the revenue from the product as payment, since this is the closest to true
sharing of profit.  However, many other arrangements are possible.  One
common one is an initial payment to purchase particular usage rights, and
then a smaller, annual payment for continuing support and upgrades.

The dividing line is drawn at the boundary between non-commercial and
commercial development instead of the boundary between open and closed
source development methods because the former seems more reasonable when
considering compensation.  Those who make money ought to be able to share
it to help keep alive the project(s) on which they depend.

The official text of the SYPP license is on the World Wide Web:

    http://www.cco.caltech.edu/~jafl/sypp/

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The source to JSearch, etc is provided primarily so people can compile them
on UNIX systems to which the JX development team does not have access.  To
help others who have the same system as you, please consider building the
binary distribution packages and making them available via ftp on the main
JX ftp site.  (Mirror sites are always welcome, too.)

If you need to modify the source, either to get it to compile on your
system or to enhance it, you will save yourself a lot of trouble by first
discussing it with us because (1) it might already have been done in a
newer release, (2) we can check that it won't disrupt any of the myriad
subtle interactions between library components, and (3) we might think of
an easier way to do it.

We also ask that you please submit any successful changes so we can merge
them into the master source to benefit everybody.  Custom widgets built on
top of JX are your own, and you can do as you wish with them, but we
encourage you to make them available, too, so others can use them.

