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    <p>Hi Scott,</p>
    <p>If you would only wanted your DTD specialization to be used by
      Oxygen when editing or for validation, adding a reference to the
      custom XML catalog in the Oxygen Preferences->"XML / XML
      Catalog" page would be enough.<br>
    </p>
    <p>But indeed for publishing the DITA OT publishing engine needs to
      have an extra plugin installed, there are no parameters which
      would allow passing a reference to an extra XML catalog to the
      DITA OT when it starts.</p>
    <p><a class="moz-txt-link-freetext" href="https://www.oxygenxml.com/doc/versions/25.0/ug-editor/topics/dita-integrate-specialization.html">https://www.oxygenxml.com/doc/versions/25.0/ug-editor/topics/dita-integrate-specialization.html</a></p>
    <p>You could actually keep a separate "plugins" folder outside of
      the DITA OT main folder as long as you refer to it in the
      "DITA-OT3.x/config/configuration.properties" file:</p>
    <p><a class="moz-txt-link-freetext" href="https://www.dita-ot.org/dev/parameters/configuration-properties-file.html">https://www.dita-ot.org/dev/parameters/configuration-properties-file.html</a></p>
    <p>But this would still mean the DITA OT folder would need to be
      changed, changes made to the "configuration.properties" followed
      by running the DITA OT integrator task which adds an extra
      reference to your XML catalog from the main DITA OT XML catalog.</p>
    <p>And the main problem is that on Windows, Oxygen is usually
      installed in the "Program Files" folder which is read-only and
      making changes to files there is problematic if you do not have
      admin privileges.<br>
    </p>
    <p>Some more ways to distribute a custom DITA OT to the users:<br>
    </p>
    <p>1) Make the custom DITA OT available as an add-on:</p>
    <p><a class="moz-txt-link-freetext" href="https://www.oxygenxml.com/doc/versions/25.0/ug-editor/topics/contribute-external-dita-ot-extension.html">https://www.oxygenxml.com/doc/versions/25.0/ug-editor/topics/contribute-external-dita-ot-extension.html</a></p>
    <p>For example here:</p>
    <p><a class="moz-txt-link-freetext" href="https://github.com/oxygenxml/dita-ot-3x-plugin">https://github.com/oxygenxml/dita-ot-3x-plugin</a></p>
    <p>In the Oxygen main menu "Help->Install new add-ons" you can
      point Oxygen to an HTTP location containing the zipped DITA OT and
      Oxygen would download it and make it available in the
      "Preferences->DITA" page.</p>
    <p>2) Add the custom DITA OT folder directly inside the framework
      folder. an Oxygen framework can provide also custom transformation
      scenarios and the custom transformation scenarios could use the
      "Parameters->"dita.dir"" parameter to refer to the custom DITA
      OT bundled with the framework.</p>
    <p>3) If you use a Git repository for example you could also commit
      the custom DITA OT inside the repository so that everyone gets it
      when they check out the project.<br>
    </p>
    <p>Regards,</p>
    <p>Radu</p>
    <pre class="moz-signature" cols="72">Radu Coravu
Oxygen XML Editor</pre>
    <p></p>
    <div class="moz-cite-prefix">On 12/20/22 22:19, Scott Prentice
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:d190cce3-f742-76b7-f533-ba0ecc846923@leximation.com">
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <p><font face="Verdana">It's interesting to see that Chemistry
          apparently honors the catalog defined in the framework, so you
          can do a PDF build from content using a custom doctype with
          just the framework installed. Not exactly what I need, but
          good to know!</font></p>
      <p><font face="Verdana">...scott<br>
        </font></p>
      <p><br>
      </p>
      <div class="moz-cite-prefix">On 12/20/22 11:46 AM, Scott Prentice
        wrote:<br>
      </div>
      <blockquote type="cite"
        cite="mid:e80c4f3c-2386-0c02-cfb3-d59dc3ffe75f@leximation.com">
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          charset=UTF-8">
        <p><font face="Verdana">Thanks, Stefan!</font></p>
        <p><font face="Verdana">Yeah .. I was hoping to avoid having the
            users install a plugin .. just install the framework. But I
            can see that's not going to fly. I'm thinking that the
            simplest (least effort for the users, and least opportunity
            for error), is to provide a pre-configured OT installation
            that they can point to from Preferences. It'll just be ..</font></p>
        <p><font face="Verdana">    1) Install framework,    <br>
                2) Point to custom OT in Preferences</font></p>
        <p><font face="Verdana">That way if something goes sideways,
            they haven't messed with the detail Oxygen installation.</font></p>
        <p><font face="Verdana">Cheers,<br>
            ...scott<br>
          </font></p>
        <p><br>
        </p>
        <div class="moz-cite-prefix">On 12/20/22 11:33 AM, Stefan Jung
          wrote:<br>
        </div>
        <blockquote type="cite"
          cite="mid:1491869537.31575.1671564822215@office.mailbox.org">
          <meta http-equiv="content-type" content="text/html;
            charset=UTF-8">
          <meta charset="UTF-8">
          <div> Hey Scott, </div>
          <div> <br>
          </div>
          <div> You should bundle the grammar files in a toolkit plugin.
            This is correct. In your oxygen framework you need to
            configure the matching rules to recognize your custom
            grammar files. You need to install your plugin to the
            DITA-OT as well. You need to use
            the dita.specialization.catalog.relative extension point in
            your plugin.xml.  </div>
          <div> <br>
          </div>
          <div> BR </div>
          <div> <br class="prevent-remove">
          </div>
          <div> <br class="prevent-remove">
          </div>
          <div> <br>
          </div>
          <div class="ox-mail-signature"> Gesendet mit OX Mail </div>
          <div> <br>
          </div>
          <div class="reply-header"> Scott Prentice <<a
              href="http://sp14@leximation.com" rel="noopener
              noreferrer" moz-do-not-send="true">sp14@leximation.com</a>>
            hat am December 20, 2022 um 8:25 PM geschrieben: </div>
          <div class="ox-mail-content-wrapper">
            <blockquote class="quoted-mail">
              <p><font face="Verdana">I think I know the answer to this
                  question, but want to confirm that I'm not missing
                  something.</font></p>
              <p><font face="Verdana">I've got a set of custom DITA DTDs
                  wrapped up in an OT plugin. If I install this plugin
                  in the OT, I'm able to successfully generate output
                  from content that uses the public IDs defined by those
                  DTDs. However, what I'd like is to include this plugin
                  in an Oxygen framework, and have the custom doctypes
                  honored for OT builds without "installing" the plugin.
                  <br>
                </font></p>
              <p><font face="Verdana">As it stands, users can install
                  the framework and edit topics and maps using the
                  custom doctypes. It validates fine and all is well,
                  but when they go to do an OT build, it fails to
                  recognize the location for the custom DTDs.</font></p>
              <p><font face="Verdana">I thought there was an OT
                  parameter that let you specify the location of an
                  alternate catalog file, but I'm not seeing that. Was
                  hoping that I could get this to work by just having
                  the users install the framework.<br>
                </font></p>
              <p><font face="Verdana">It seems like my only options are
                  (after installing the framework) ..</font></p>
              <p><font face="Verdana">- install and integrate the
                  "doctypes" plugin into the default OT in Oxygen</font></p>
              <p><font face="Verdana">- OR .. provide another OT that
                  has the doctypes plugin installed and have the users
                  point to that as a custom DITA-OT in Oxygen<br>
                </font></p>
              <p>Thoughts?</p>
              <p>Thanks!<br>
                ...scott</p>
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