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    <p>Hi,<br>
    </p>
    On Wed, 7 Sep 2016 22:08:59 +0100 James Cowgill <jcowgill@debian.org>
      wrote:<br>
      > Hi,<br>
      > <br>
      > On 07/09/16 20:26, Herbert Fortes wrote:<br>
      > >><br>
      > >> Files in "lib-src/libnyquist/nyquist/xlisp" have the
      following in the<br>
      > > header:<br>
      > >><br>
      > >> Copyright (c) 1985, by David Michael Betz<br>
      > >> All Rights Reserved<br>
      > >> Permission is granted for unrestricted
      non-commercial use<br>
      > >><br>
      > > <br>
      > > I tried to send an email to David Michael Betz<br>
      > > but the email returns. I tried to email address:<br>
      > <br>
      > There seems to be a more recent version of xlisp on this
      site:<br>
      > <a class="moz-txt-link-freetext" href="http://www.xlisp.org/">http://www.xlisp.org/</a><br>
      > <br>
      > It has another email address (which I've CCed). Hopefully it
      works!<br>
      > <br>
      > Maybe part of the solution to this bug is to update
      audacity's copy of<br>
      > xlisp to this new version which seems to be under the BSD
      3-clause license?<br>
      > <br>
      > (of course there are some other non-free files to look at as
      well)<br>
      > <br>
      <br>
      The license seems to be same that is in collab-maint[0]. The<br>
      problem is some files[1] has:<br>
    </jcowgill@debian.org><br>
    <jcowgill@debian.org>
      <pre><code><pre><span class="cm">ermission is granted for unrestricted non-commercial use</span></pre></code></pre>
      <br>
      [0] -
<a class="moz-txt-link-freetext" href="https://anonscm.debian.org/cgit/pkg-multimedia/audacity.git/tree/lib-src/libnyquist/nyquist/license.txt">https://anonscm.debian.org/cgit/pkg-multimedia/audacity.git/tree/lib-src/libnyquist/nyquist/license.txt</a>
      <br>
      [1] -
<a class="moz-txt-link-freetext" href="https://anonscm.debian.org/cgit/pkg-multimedia/audacity.git/tree/lib-src/libnyquist/nyquist/xlisp/xlisp.c">https://anonscm.debian.org/cgit/pkg-multimedia/audacity.git/tree/lib-src/libnyquist/nyquist/xlisp/xlisp.c</a><br>
      <br>
      I am a little bit confuse about SGML:</jcowgill@debian.org><br>
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    <br>
    Th<jcowgill@debian.org></jcowgill@debian.org><jcowgill@debian.org>era
      are open source alternatives, as said<br>
      here[2]:<br>
          </jcowgill@debian.org><jcowgill@debian.org>
      <h2><span class="mw-headline" id="Open-source_implementations">Open-source
          implementations</span></h2>
    </jcowgill@debian.org><jcowgill@debian.org>
      <p>Significant <a
          href="https://en.wikipedia.org/wiki/Open_source_software"
          class="mw-redirect" title="Open source software">open-source</a>
        implementations of SGML have included:</p>
      <ul>
        <li><a rel="nofollow" class="external text"
            href="http://ftp.sunet.se/pub/text-processing/sgml/ASP-SGML/">ASP-SGML</a></li>
        <li><a rel="nofollow" class="external text"
            href="http://ftp.sunet.se/pub/text-processing/sgml/ARC-SGML/">ARC-SGML</a>,
          by Standard Generalized Markup Language Users', 1991, C
          language</li>
        <li><a rel="nofollow" class="external text"
            href="http://ftp.sunet.se/pub/text-processing/sgml/SGMLS/">SGMLS</a>,
          by James Clark, 1993, C language</li>
        <li><a rel="nofollow" class="external text"
            href="http://ftp.sunet.se/pub/text-processing/sgml/YAO/">Project
            YAO</a>, by Yuan-ze Institute of Technology, Taiwan, with
          Charles Goldfarb, 1994, object</li>
        <li><a rel="nofollow" class="external text"
            href="http://www.jclark.com/sp/index.htm">SP</a> by James
          Clark, C++ language</li>
      </ul>
      <br>
      [2] - <a class="moz-txt-link-freetext" href="https://en.wikipedia.org/wiki/SGML">https://en.wikipedia.org/wiki/SGML</a><br>
      <br>
      <br>
      Regards,<br>
      Herbert<br>
    </jcowgill@debian.org>
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