<html>
  <head>
    <meta content="text/html; charset=windows-1252"
      http-equiv="Content-Type">
  </head>
  <body bgcolor="#FFFFFF" text="#000000">
    <p>Is there an actual RFC?  All I find is
      draft-ietf-morg-inthread-01.   Looking at that draft, the only
      difference between REFS ad REFERENCES is this:</p>
    <pre class="newpage">    THREAD=REFS sorts threads by the most recent INTERNALDATE in each
    thread, replacing THREAD=REFERENCES step (4). This means that when a
    new message arrives, its thread becomes the latest thread. (Note
    that while threads are sorted by arrival date, messages within a
    thread are sorted by sent date, just as for THREAD=REFERENCES.)


</pre>
    This being the case, I don't think we need two copies of the
    threading functions.  I'd modify the exiting functions to take an
    additional parameter to specify whether we're doing REFS or
    REFERENCES and then have 2 wrapper functions which call the main
    function with the parameter set appropriately for the given
    algorithm.<br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 07/08/2016 10:03 AM, Gabriele Bulfon
      wrote:<br>
    </div>
    <blockquote
      cite="mid:10757728.421.1467986639278.JavaMail.sonicle@www"
      type="cite">
      <div style="font-family: Arial; font-size: 13;">Ok, it works :)
        but checking against dovecot implementation, it looks like they
        have refs order same as references, but without subject
        grouping. AFAIK the RFC on refs says ordering of dates within
        the group should be reversed. Am I wrong?<br>
        <br>
        <div id="wt-mailcard">
          <div style="font-family: Arial;">----------------------------------------------------------------------------------------<br>
          </div>
          <div style="font-family: Arial;"><b>Sonicle S.r.l. </b>: <a
              moz-do-not-send="true" href="http://www.sonicle.com/"
              target="_new"><a class="moz-txt-link-freetext" href="http://www.sonicle.com">http://www.sonicle.com</a></a></div>
          <div style="font-family: Arial;"><b>Music: </b><a
              moz-do-not-send="true"
              href="http://www.gabrielebulfon.com/" target="_new"><a class="moz-txt-link-freetext" href="http://www.gabrielebulfon.com">http://www.gabrielebulfon.com</a></a></div>
          <div style="font-family: Arial;"><b>Quantum Mechanics : </b><a
              moz-do-not-send="true"
              href="http://www.cdbaby.com/cd/gabrielebulfon"
              target="_new"><a class="moz-txt-link-freetext" href="http://www.cdbaby.com/cd/gabrielebulfon">http://www.cdbaby.com/cd/gabrielebulfon</a></a></div>
        </div>
        <br>
        <hr><br>
        <br>
        <font face="Arial, Helvetica, sans-serif" size="2"><b>Da:</b>
          Gabriele Bulfon via Info-cyrus
          <a class="moz-txt-link-rfc2396E" href="mailto:info-cyrus@lists.andrew.cmu.edu"><info-cyrus@lists.andrew.cmu.edu></a><br>
          <b>A:</b> Ken Murchison <a class="moz-txt-link-rfc2396E" href="mailto:murch@andrew.cmu.edu"><murch@andrew.cmu.edu></a>
          <a class="moz-txt-link-abbreviated" href="mailto:info-cyrus@lists.andrew.cmu.edu">info-cyrus@lists.andrew.cmu.edu</a> <br>
          <b>Data:</b> 8 luglio 2016 15.22.56 CEST<br>
          <b>Oggetto:</b> Re: thread=refs<br>
        </font><br>
        <br>
        <blockquote style="BORDER-LEFT: #000080 2px solid; MARGIN-LEFT:
          5px; PADDING-LEFT: 5px">
          <div style="font-family: Arial; font-size: 13;">Testing ;) and
            checking against a dovecot machine with refs and same
            messages.</div>
          <div style="font-family: Arial; font-size: 13;">Will let you
            know<br>
            <br>
            <div id="wt-mailcard">
              <div style="font-family: Arial;">----------------------------------------------------------------------------------------<br>
              </div>
              <div style="font-family: Arial;"><b>Sonicle S.r.l. </b>:
                <a moz-do-not-send="true" href="http://www.sonicle.com/"
                  target="_new">http://www.sonicle.com</a></div>
              <div style="font-family: Arial;"><b>Music: </b><a
                  moz-do-not-send="true"
                  href="http://www.gabrielebulfon.com/" target="_new"><a class="moz-txt-link-freetext" href="http://www.gabrielebulfon.com">http://www.gabrielebulfon.com</a></a></div>
              <div style="font-family: Arial;"><b>Quantum Mechanics : </b><a
                  moz-do-not-send="true"
                  href="http://www.cdbaby.com/cd/gabrielebulfon"
                  target="_new"><a class="moz-txt-link-freetext" href="http://www.cdbaby.com/cd/gabrielebulfon">http://www.cdbaby.com/cd/gabrielebulfon</a></a></div>
            </div>
            <br>
            <hr><br>
            <br>
            <font face="Arial, Helvetica, sans-serif" size="2"><b>Da:</b>
              Ken Murchison <a class="moz-txt-link-rfc2396E" href="mailto:murch@andrew.cmu.edu"><murch@andrew.cmu.edu></a><br>
              <b>A:</b> <a class="moz-txt-link-abbreviated" href="mailto:gbulfon@sonicle.com">gbulfon@sonicle.com</a>
              <a class="moz-txt-link-abbreviated" href="mailto:info-cyrus@lists.andrew.cmu.edu">info-cyrus@lists.andrew.cmu.edu</a> <br>
              <b>Data:</b> 8 luglio 2016 15.02.38 CEST<br>
              <b>Oggetto:</b> Re: thread=refs<br>
            </font><br>
            <br>
            <blockquote style="BORDER-LEFT: #000080 2px solid;
              MARGIN-LEFT: 5px; PADDING-LEFT: 5px">
              <p><br>
              </p>
              <br>
              <div class="moz-cite-prefix">On 07/07/2016 02:03 PM,
                Gabriele Bulfon via Info-cyrus wrote:<br>
              </div>
              <blockquote
                cite="mid:139418.370.1467914635571.JavaMail.sonicle@www"
                type="cite">
                <div style="font-family: Arial; font-size: 13;">I can
                  finally get back to this after so many months!</div>
                <div style="font-family: Arial; font-size: 13;">I
                  checked the sources, and I actually see it doesn't
                  look very hard.</div>
                <div style="font-family: Arial; font-size: 13;"><br>
                </div>
                <div style="font-family: Arial; font-size: 13;">Looks
                  like:</div>
                <div style="font-family: Arial; font-size: 13;">-
                  renaming all functions like "index_thread_ref" into
                  "index_thread_references"</div>
                <div style="font-family: Arial; font-size: 13;">-
                  duplicate them as "index_thread_refs"</div>
                <div style="font-family: Arial; font-size: 13;">- let
                  "references" alg call the "references" funcs</div>
                <div style="font-family: Arial; font-size: 13;">- add
                  support for "refs" in thread_algs and let them call
                  the "refs" funcs</div>
              </blockquote>
              <br>
              Makes sense.<br>
              <br>
              <br>
              <blockquote
                cite="mid:139418.370.1467914635571.JavaMail.sonicle@www"
                type="cite">
                <div style="font-family: Arial; font-size: 13;"><br>
                </div>
                <div style="font-family: Arial; font-size: 13;">then:</div>
                <div style="font-family: Arial; font-size: 13;">-
                  completely remove the call to "ref_group_subjects", we
                  don't want it at all in refs</div>
                <div style="font-family: Arial; font-size: 13;">- change
                  the sortcrit to use the SORT_REVERSE modifier</div>
              </blockquote>
              <br>
              As long as you mean making these changes for just the
              "refs" variant and not both.<br>
              <br>
              <br>
              <br>
              <blockquote
                cite="mid:139418.370.1467914635571.JavaMail.sonicle@www"
                type="cite">
                <div style="font-family: Arial; font-size: 13;"><br>
                </div>
                <div style="font-family: Arial; font-size: 13;">what do
                  you think? may be fine?<br>
                  <br>
                  <div id="wt-mailcard">
                    <div style="font-family: Arial;">----------------------------------------------------------------------------------------<br>
                    </div>
                    <div style="font-family: Arial;"><b>Sonicle S.r.l. </b>:
                      <a moz-do-not-send="true"
                        class="moz-txt-link-freetext"
                        href="http://www.sonicle.com">http://www.sonicle.com</a></div>
                    <div style="font-family: Arial;"><b>Music: </b><a
                        moz-do-not-send="true"
                        class="moz-txt-link-freetext"
                        href="http://www.gabrielebulfon.com"><a class="moz-txt-link-freetext" href="http://www.gabrielebulfon.com">http://www.gabrielebulfon.com</a></a></div>
                    <div style="font-family: Arial;"><b>Quantum
                        Mechanics : </b><a moz-do-not-send="true"
                        class="moz-txt-link-freetext"
                        href="http://www.cdbaby.com/cd/gabrielebulfon">http://www.cdbaby.com/cd/gabrielebulfon</a></div>
                  </div>
                  <br>
                  <hr><br>
                  <br>
                  <font face="Arial, Helvetica, sans-serif" size="2"><b>Da:</b>
                    Ken Murchison <a moz-do-not-send="true"
                      class="moz-txt-link-rfc2396E"
                      href="mailto:murch@andrew.cmu.edu"><murch@andrew.cmu.edu></a><br>
                    <b>A:</b> <a moz-do-not-send="true"
                      class="moz-txt-link-abbreviated"
                      href="mailto:info-cyrus@lists.andrew.cmu.edu">info-cyrus@lists.andrew.cmu.edu</a>
                    <br>
                    <b>Data:</b> 5 ottobre 2015 14.04.02 CEST<br>
                    <b>Oggetto:</b> Re: thread=refs<br>
                  </font><br>
                  <br>
                  <blockquote style="BORDER-LEFT: #000080 2px solid;
                    MARGIN-LEFT: 5px; PADDING-LEFT: 5px"> As far as I
                    can tell, the last specification for thread=refs was
                    here:<a moz-do-not-send="true"
                      class="moz-txt-link-freetext"
                      href="https://tools.ietf.org/html/draft-ietf-morg-inthread-01">https://tools.ietf.org/html/draft-ietf-morg-inthread-01</a><br>
                    <br>
                    To implement this you want to look at index.c in the
                    Cyrus source and add another entry to the
                    thread_algs[] array. I'm guessing that you can reuse
                    a lot of the existing index_thread_ref() code (which
                    is probably needs to be renamed to
                    index_thread_references()).<br>
                    <br>
                    <br>
                    <br>
                    <div class="moz-cite-prefix">On 10/05/2015 06:07 AM,
                      Gabriele Bulfon wrote:<br>
                    </div>
                    <blockquote
                      cite="mid:18262603.71.1444039631264.JavaMail.sonicle@www"
                      type="cite">
                      <div style="font-family: Verdana; font-size: 12;">
                        <div id="wt-mailcard">Great, Ken. Can you give
                          me some advice / pointer to the sources I
                          should look at?</div>
                        <div id="wt-mailcard"><br>
                        </div>
                        <div id="wt-mailcard">Gabriele</div>
                        <br>
                        <hr><br>
                        <br>
                        <font face="Arial, Helvetica, sans-serif"
                          size="2"><b>Da:</b> Ken Murchison <a
                            moz-do-not-send="true"
                            class="moz-txt-link-rfc2396E"
                            href="mailto:murch@andrew.cmu.edu"><a class="moz-txt-link-rfc2396E" href="mailto:murch@andrew.cmu.edu"><murch@andrew.cmu.edu></a></a><br>
                          <b>A:</b> <a moz-do-not-send="true"
                            class="moz-txt-link-abbreviated"
                            href="mailto:info-cyrus@lists.andrew.cmu.edu">info-cyrus@lists.andrew.cmu.edu</a>
                          <br>
                          <b>Data:</b> 2 ottobre 2015 19.08.04 CEST<br>
                          <b>Oggetto:</b> Re: thread=refs<br>
                        </font><br>
                        <br>
                        <blockquote style="BORDER-LEFT: #000080 2px
                          solid; MARGIN-LEFT: 5px; PADDING-LEFT: 5px">
                          <div class="moz-cite-prefix">On 10/02/2015
                            10:53 AM, Gabriele Bulfon wrote:<br>
                          </div>
                          <blockquote
                            cite="mid:11844453.9.1443797615639.JavaMail.sonicle@www"
                            type="cite">
                            <div style="font-family: Verdana; font-size:
                              12;">
                              <div id="wt-mailcard">Nice, it's not a big
                                deal for us to upgrade to new versions,
                                surely easier than porting to Dovecot!
                                ;)<br>
                                <br>
                                So, maybe we can help with the
                                implementation.</div>
                              <div id="wt-mailcard">In my mind, it's
                                almost about changing the
                                "thread=reference" and let it omit the
                                subject matching, change sorting</div>
                              <div id="wt-mailcard">and...maybe just
                                this? How much hard do you think it is?</div>
                              <br>
                            </div>
                          </blockquote>
                          <br>
                          That sounds about right from what I remember
                          of THREAD=REFERENCES (which I co-authored and
                          implemented) and THREAD=REFS (which I think
                          was last documented in 2010).<br>
                          <br>
                          <br>
                          <br>
                          <blockquote
                            cite="mid:11844453.9.1443797615639.JavaMail.sonicle@www"
                            type="cite">
                            <div style="font-family: Verdana; font-size:
                              12;">
                              <hr><br>
                              <br>
                              <font face="Arial, Helvetica, sans-serif"
                                size="2"><b>Da:</b> Bron Gondwana <a
                                  moz-do-not-send="true"
                                  class="moz-txt-link-rfc2396E"
                                  href="mailto:brong@fastmail.fm"><a class="moz-txt-link-rfc2396E" href="mailto:brong@fastmail.fm"><brong@fastmail.fm></a></a><br>
                                <b>A:</b> <a moz-do-not-send="true"
                                  class="moz-txt-link-abbreviated"
                                  href="mailto:info-cyrus@lists.andrew.cmu.edu">info-cyrus@lists.andrew.cmu.edu</a>
                                <br>
                                <b>Data:</b> 2 ottobre 2015 12.59.08
                                CEST<br>
                                <b>Oggetto:</b> Re: thread=refs<br>
                              </font><br>
                              <br>
                              <blockquote style="BORDER-LEFT: #000080
                                2px solid; MARGIN-LEFT: 5px;
                                PADDING-LEFT: 5px">
                                <div>No, there isn't. The conversations
                                  work in 3.0 beta contains a lot of
                                  what would be required to efficiently
                                  implement THREAD=REFS, but nobody has
                                  done the work to implement it.<br>
                                </div>
                                <div> </div>
                                <div>It certainly will never be
                                  backported to the 2.4 series, which is
                                  only getting security updates and
                                  fixes for major bugs now.<br>
                                </div>
                                <div> </div>
                                <div>Regards,<br>
                                </div>
                                <div> </div>
                                <div>Bron.<br>
                                </div>
                                <div> </div>
                                <div> </div>
                                <div>On Fri, Oct 2, 2015, at 18:40,
                                  Gabriele Bulfon wrote:<br>
                                </div>
                                <blockquote type="cite">
                                  <div>Hi,<br>
                                  </div>
                                  <div> </div>
                                  <div>we have systems running cyrus
                                    2.4.12, where thread algorithms are
                                    only references and orderedsubject.<br>
                                  </div>
                                  <div>Is there support for the
                                    thread=refs algorithm?<br>
                                  </div>
                                  <div> </div>
                                  <div>Thanks<br>
                                  </div>
                                  <div>Gabriele<br>
                                  </div>
                                  <div>----<br>
                                  </div>
                                  <div>Cyrus Home Page: <a
                                      moz-do-not-send="true"
                                      href="http://www.cyrusimap.org/"><a class="moz-txt-link-freetext" href="http://www.cyrusimap.org/">http://www.cyrusimap.org/</a></a><br>
                                  </div>
                                  <div>List Archives/Info: <a
                                      moz-do-not-send="true"
                                      class="moz-txt-link-freetext"
                                      href="http://lists.andrew.cmu.edu/pipermail/info-cyrus/"><a class="moz-txt-link-freetext" href="http://lists.andrew.cmu.edu/pipermail/info-cyrus/">http://lists.andrew.cmu.edu/pipermail/info-cyrus/</a></a><br>
                                  </div>
                                  <div>To Unsubscribe:<br>
                                  </div>
                                  <div><a moz-do-not-send="true"
                                      href="https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus">https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus</a><br>
                                  </div>
                                </blockquote>
                                <div> </div>
                                <div id="sig567075">
                                  <div class="signature">--<br>
                                  </div>
                                  <div class="signature"> Bron Gondwana<br>
                                  </div>
                                  <div class="signature"> <a
                                      moz-do-not-send="true"
                                      class="moz-txt-link-abbreviated"
                                      href="mailto:brong@fastmail.fm"><a class="moz-txt-link-abbreviated" href="mailto:brong@fastmail.fm">brong@fastmail.fm</a></a><br>
                                  </div>
                                  <div class="signature"> </div>
                                </div>
                                <div> </div>
                              </blockquote>
                            </div>
                            <br>
                            <fieldset class="mimeAttachmentHeader"></fieldset>
                            <br>
                            <pre wrap="">----
Cyrus Home Page: <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.cyrusimap.org/">http://www.cyrusimap.org/</a>
List Archives/Info: <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.andrew.cmu.edu/pipermail/info-cyrus/">http://lists.andrew.cmu.edu/pipermail/info-cyrus/</a>
To Unsubscribe:
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus">https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus</a></pre>
                          </blockquote>
                          <br>
                          <br>
                          <pre class="moz-signature" cols="72">-- 
Kenneth Murchison
Principal Systems Software Engineer
Carnegie Mellon University
</pre>
                        </blockquote>
                      </div>
                      <br>
                      <fieldset class="mimeAttachmentHeader"></fieldset>
                      <br>
                      <pre wrap="">----
Cyrus Home Page: <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.cyrusimap.org/">http://www.cyrusimap.org/</a>
List Archives/Info: <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.andrew.cmu.edu/pipermail/info-cyrus/">http://lists.andrew.cmu.edu/pipermail/info-cyrus/</a>
To Unsubscribe:
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus">https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus</a></pre>
                    </blockquote>
                    <br>
                    <pre class="moz-signature" cols="72">-- 
Kenneth Murchison
Principal Systems Software Engineer
Carnegie Mellon University
</pre>
                  </blockquote>
                </div>
                <br>
                <fieldset class="mimeAttachmentHeader"></fieldset>
                <br>
                <pre wrap="">----
Cyrus Home Page: <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.cyrusimap.org/">http://www.cyrusimap.org/</a>
List Archives/Info: <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://lists.andrew.cmu.edu/pipermail/info-cyrus/">http://lists.andrew.cmu.edu/pipermail/info-cyrus/</a>
To Unsubscribe:
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus">https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus</a></pre>
              </blockquote>
              <br>
              <pre class="moz-signature" cols="72">-- 
Kenneth Murchison
Principal Systems Software Engineer
Carnegie Mellon University
</pre>
            </blockquote>
          </div>
          <pre>----
Cyrus Home Page: <a class="moz-txt-link-freetext" href="http://www.cyrusimap.org/">http://www.cyrusimap.org/</a>
List Archives/Info: <a class="moz-txt-link-freetext" href="http://lists.andrew.cmu.edu/pipermail/info-cyrus/">http://lists.andrew.cmu.edu/pipermail/info-cyrus/</a>
To Unsubscribe:
<a class="moz-txt-link-freetext" href="https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus">https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus</a>
</pre>
        </blockquote>
      </div>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Kenneth Murchison
Principal Systems Software Engineer
Carnegie Mellon University
</pre>
  </body>
</html>