david
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xowa
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							<!DOCTYPE html>
<html dir="ltr">
<head>
  <meta http-equiv="content-type" content="text/html;charset=UTF-8" />
  <title>Options/Scribunto - XOWA</title>
  <link rel="shortcut icon" href="https://gnosygnu.github.io/xowa/xowa_logo.png" />
  <link rel="stylesheet" href="https://gnosygnu.github.io/xowa/xowa_common.css" type="text/css">
  
</head>
<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject skin-vector action-submit vector-animateLayout" spellcheck="false">
<div id="mw-page-base" class="noprint"></div>
<div id="mw-head-base" class="noprint"></div>
<div id="content" class="mw-body">
  <h1 id="firstHeading" class="firstHeading"><span>Options/Scribunto</span></h1>
  <div id="bodyContent" class="mw-body-content">
    <div id="siteSub">From XOWA: the free, open-source, offline wiki application</div>
    <div id="contentSub"></div>
    <div id="mw-content-text" lang="en" dir="ltr" class="mw-content-ltr">
    <div id='xocfg_body'>
  <!-- TEXT:err_msg -->
  <div id='xocfg_err'></div>
  
  <div>
    <!-- BTN:info -->
    <span class='xoimg_btn_x16 xoimg_help_tip' href='javascript:void(0)' onclick='return xo.cfg_edit.help__toggle_all()' title='toggle all help'>&nbsp;</span>
    
    <!-- COMBO:cfg_grps -->
    <select id='xocfg_nav_select' onchange='xo.cfg_edit.select__send(this);' onkeyup='xo.cfg_edit.select__by_keypress(event, this);' accesskey='l'>
      
      <option value='xowa.app.security' >App - Security</option>
      
      <option value='xowa.app.startup' >App - Startup</option>
      
      <option value='xowa.app.dbs' >App - Databases</option>
      
      <option value='xowa.app.update' >App - Update</option>
      
      <option value='xowa.gui.general' >Gui - General</option>
      
      <option value='xowa.gui.tabs' >Gui - Tabs</option>
      
      <option value='xowa.gui.url_bar' >Gui - Address bar</option>
      
      <option value='xowa.gui.menus' >Gui - Menus</option>
      
      <option value='xowa.gui.shortcuts' >Gui - Shortcuts</option>
      
      <option value='xowa.gui.nightmode' >Gui - Nightmode</option>
      
      <option value='xowa.wiki.hdumps' >Wiki - HTML Databases</option>
      
      <option value='xowa.wiki.edit' >Wiki - Editing</option>
      
      <option value='xowa.bldr.general' >Import - General</option>
      
      <option value='xowa.bldr.db' >Import - Database</option>
      
      <option value='xowa.bldr.page_sync' >Import - Page sync</option>
      
      <option value='xowa.bldr.dansguardian' >Import - Dansguardian</option>
      
      <option value='xowa.html.css' >HTML - CSS</option>
      
      <option value='xowa.html.page' >HTML - Page</option>
      
      <option value='xowa.html.tidy' >HTML - Tidy</option>
      
      <option value='xowa.html.scripting' >HTML - Scripting</option>
      
      <option value='xowa.files.general' >Files - General</option>
      
      <option value='xowa.files.apps' >Files - Apps</option>
      
      <option value='xowa.addon.search' >Addon - Search</option>
      
      <option value='xowa.addon.fulltext_search' >Addon - Full-text search</option>
      
      <option value='xowa.addon.category' >Addon - Category</option>
      
      <option value='xowa.addon.http_server' >Addon - HTTP Server</option>
      
      <option value='xowa.addon.scribunto'  selected='selected'>Addon - Scribunto</option>
      
      <option value='xowa.addon.math' >Addon - Math</option>
      
      <option value='xowa.addon.score' >Addon - Score</option>
      
      <option value='xowa.addon.popups' >Addon - Popups</option>
      
      <option value='xowa.addon.wikibase' >Addon - Wikidata</option>
      
      <option value='xowa.dev.general' >Dev - General</option>
      
      <option value='xowa.app.settings' >App - Settings</option>
      
    </select>
    
    <!-- LINK:cfg_link -->
    
    <div style='float:right;margin:2px 7px;'>
      <a id='options_lnk'>options link</a>
    </div>
    
  </div>
  

<div id='cfg_grps'>
  <!-- TEXT:page_help -->
  <div>
    <p id='page_help_para'></p>
  </div>

  <h2>General</h2>

  
  <div class="xocfg_row flex_div">
    <!-- BTN:help_item -->
    <div class='xocfg_itm_help'>
      <span class='xoimg_btn_x16 xoimg_help_tip' href='javascript:void(0)' onclick='return xo.help.toggle("xowa.addon.scribunto.enabled")' title='view more info'>&nbsp;</span>
    </div>
    
    <!-- TEXT:key -->
    <div id='xowa.addon.scribunto.enabled__name' class='xocfg_itm_name'>Enabled</div>

    <!-- BTN:undo -->
    <div id='xowa.addon.scribunto.enabled__undo' data-xocfg-type='bool' class='xocfg_itm_delete xocfg_itm_hide'>
      <span class='xoimg_btn_x16 xoimg_list_undo' onclick='return xo.cfg_edit.delete__send("xowa.addon.scribunto.enabled")' title="reset to &quot;y&quot;">&nbsp;</span>
    </div>
    
    <!-- TEXT:val -->
    <div class='xocfg_itm_data'>
<input id="xowa.addon.scribunto.enabled" data-xocfg-key="xowa.addon.scribunto.enabled" data-xocfg-type="bool" accesskey="d" class="xocfg_data__bool" type="checkbox" checked="checked"></input></div>
    
    <!-- HIDDEN:key,ctx -->
    <input type='hidden' id='xowa.addon.scribunto.enabled__key_box' value='xowa.addon.scribunto.enabled'></input>
    <input type='hidden' id='xowa.addon.scribunto.enabled__ctx_box' value='app'></input>
  </div>
  
  <!-- DIV:help -->
  <div id='xowa.addon.scribunto.enabled_help_div' class='xohelp_div'>
    <div id='xowa.addon.scribunto.enabled_help_msg' class='xohelp_msg'><p>Handles &#123;&#123;#invoke:Module:Module_name|Function_name|Arguments}}
</p>

<ul>
  <li> <b>checked</b> to process #invoke statements
  </li>
  <li> <b>unchecked</b> to render #invoke as text only
  </li>
</ul>
</div>
  </div>
  
  <div class="xocfg_row flex_div">
    <!-- BTN:help_item -->
    <div class='xocfg_itm_help'>
      <span class='xoimg_btn_x16 xoimg_help_tip' href='javascript:void(0)' onclick='return xo.help.toggle("xowa.addon.scribunto.engine")' title='view more info'>&nbsp;</span>
    </div>
    
    <!-- TEXT:key -->
    <div id='xowa.addon.scribunto.engine__name' class='xocfg_itm_name'>Lua engine</div>

    <!-- BTN:undo -->
    <div id='xowa.addon.scribunto.engine__undo' data-xocfg-type='list:xowa.addon.scribunto.engine' class='xocfg_itm_delete xocfg_itm_hide'>
      <span class='xoimg_btn_x16 xoimg_list_undo' onclick='return xo.cfg_edit.delete__send("xowa.addon.scribunto.engine")' title="reset to &quot;luaj&quot;">&nbsp;</span>
    </div>
    
    <!-- TEXT:val -->
    <div class='xocfg_itm_data'>
<select id="xowa.addon.scribunto.engine" data-xocfg-key="xowa.addon.scribunto.engine" data-xocfg-type="list:xowa.addon.scribunto.engine" accesskey="d" class="xocfg_data__list" size="2">
<option value="luaj" selected="selected">luaj</option>
<option value="lua">lua</option>
</select>
</div>
    
    <!-- HIDDEN:key,ctx -->
    <input type='hidden' id='xowa.addon.scribunto.engine__key_box' value='xowa.addon.scribunto.engine'></input>
    <input type='hidden' id='xowa.addon.scribunto.engine__ctx_box' value='app'></input>
  </div>
  
  <!-- DIV:help -->
  <div id='xowa.addon.scribunto.engine_help_div' class='xohelp_div'>
    <div id='xowa.addon.scribunto.engine_help_msg' class='xohelp_msg'><p>Select lua engine. See <a href="/wiki/App/Xtn/Mediawiki/Scribunto#Engines" id="xolnki_29" title="App/Xtn/Mediawiki/Scribunto" tabindex="-1">App/Xtn/Mediawiki/Scribunto#Engines</a>
</p>

<ul>
  <li> <b>luaj</b>: lua code will be processed through the <a href="http://luaj.org/luaj/README.html" rel="nofollow" class="external text" tabindex="-1">luaj</a> jar at /bin/any/java/luaj/.
  </li>
  <li> <b>lua</b> : lua code will be processed through the <a href="http://lua.org/about" rel="nofollow" class="external text" tabindex="-1">lua</a> binary at /bin/os_name/lua/.
  </li>
</ul>

<p><b>Note for Lua engine users:</b>
</p>

<ul>
  <li> <b>executable permissions</b>: Linux / Mac OS X users may need to grant execute permission to the Lua binary. To ensure proper setup, please do the following:

    <ul>
      <li> Open <a href="/wiki/Diagnostics/Scribunto/All" id="xolnki_30" title="Diagnostics/Scribunto/All" class="xowa-visited" tabindex="-1">Diagnostics/Scribunto/All</a>
      </li>
      <li> If the page fails, then see <a href="/wiki/App/Xtn/Mediawiki/Scribunto#Permissions" id="xolnki_31" title="App/Xtn/Mediawiki/Scribunto" tabindex="-1">App/Xtn/Mediawiki/Scribunto#Permissions</a>
      </li>
    </ul>
  </li>
  <li> <b>NTFS partitions</b>: Linux users with NTFS partitions will need to run a command like the following:
  </li>
</ul>
<dl>
  <dd> <code>sudo mount -t ntfs -o rw,auto,user,fmask=0022,dmask=0000 /dev/whatever /mnt/whatever</code>
  </dd>
  <dd> See <a href="http://askubuntu.com/questions/11840/how-do-i-use-chmod-on-an-ntfs-or-fat32-partition" rel="nofollow" class="external free" tabindex="-1">http://askubuntu.com/questions/11840/how-do-i-use-chmod-on-an-ntfs-or-fat32-partition</a> (Thanks to Anselm)
  </dd>
</dl>
</div>
  </div>
  

  <h2>Lua options</h2>

  
  <div class="xocfg_row flex_div">
    <!-- BTN:help_item -->
    <div class='xocfg_itm_help'>
      <span class='xoimg_btn_x16 xoimg_help_tip' href='javascript:void(0)' onclick='return xo.help.toggle("xowa.addon.scribunto.lua.cmd")' title='view more info'>&nbsp;</span>
    </div>
    
    <!-- TEXT:key -->
    <div id='xowa.addon.scribunto.lua.cmd__name' class='xocfg_itm_name'>Lua path</div>

    <!-- BTN:undo -->
    <div id='xowa.addon.scribunto.lua.cmd__undo' data-xocfg-type='io.cmd' class='xocfg_itm_delete xocfg_itm_hide'>
      <span class='xoimg_btn_x16 xoimg_list_undo' onclick='return xo.cfg_edit.delete__send("xowa.addon.scribunto.lua.cmd")' title="reset to &quot;~{<>bin_plat_dir<>}lua\lua5.1.exe|&quot;">&nbsp;</span>
    </div>
    
    <!-- TEXT:val -->
    <div class='xocfg_itm_data'>
<input  class="xocfg_data__io_cmd__exe__txt" id="xowa.addon.scribunto.lua.cmd-exe" data-xocfg-key="xowa.addon.scribunto.lua.cmd" data-xocfg-type="io.cmd-exe" accesskey="d" type="text" value="~{<>bin_plat_dir<>}lua\lua5.1.exe"></input>
<span class="xoimg_btn_x16 xoimg_app_configure" onclick='xo.cfg_edit.io_cmd__select("file", "xowa.addon.scribunto.lua.cmd-exe", "Please select a file.");'>&nbsp;</span><br/>
<input  class="xocfg_data__io_cmd__arg__txt" id="xowa.addon.scribunto.lua.cmd-arg" data-xocfg-key="xowa.addon.scribunto.lua.cmd" data-xocfg-type="io.cmd-arg" accesskey="d" type="text" value="">
</div>
    
    <!-- HIDDEN:key,ctx -->
    <input type='hidden' id='xowa.addon.scribunto.lua.cmd__key_box' value='xowa.addon.scribunto.lua.cmd'></input>
    <input type='hidden' id='xowa.addon.scribunto.lua.cmd__ctx_box' value='app'></input>
  </div>
  
  <!-- DIV:help -->
  <div id='xowa.addon.scribunto.lua.cmd_help_div' class='xohelp_div'>
    <div id='xowa.addon.scribunto.lua.cmd_help_msg' class='xohelp_msg'><p>Path to Lua binary. Only applies to the <code>lua</code>engine.
</p>
</div>
  </div>
  
  <div class="xocfg_row flex_div">
    <!-- BTN:help_item -->
    <div class='xocfg_itm_help'>
      <span class='xoimg_btn_x16 xoimg_help_tip' href='javascript:void(0)' onclick='return xo.help.toggle("xowa.addon.scribunto.lua.timeout")' title='view more info'>&nbsp;</span>
    </div>
    
    <!-- TEXT:key -->
    <div id='xowa.addon.scribunto.lua.timeout__name' class='xocfg_itm_name'>Lua timeout</div>

    <!-- BTN:undo -->
    <div id='xowa.addon.scribunto.lua.timeout__undo' data-xocfg-type='int' class='xocfg_itm_delete xocfg_itm_hide'>
      <span class='xoimg_btn_x16 xoimg_list_undo' onclick='return xo.cfg_edit.delete__send("xowa.addon.scribunto.lua.timeout")' title="reset to &quot;4000&quot;">&nbsp;</span>
    </div>
    
    <!-- TEXT:val -->
    <div class='xocfg_itm_data'>
<input id="xowa.addon.scribunto.lua.timeout" data-xocfg-key="xowa.addon.scribunto.lua.timeout" data-xocfg-type="int" accesskey="d" class="xocfg_data__int" type="text" value="4000"></input></div>
    
    <!-- HIDDEN:key,ctx -->
    <input type='hidden' id='xowa.addon.scribunto.lua.timeout__key_box' value='xowa.addon.scribunto.lua.timeout'></input>
    <input type='hidden' id='xowa.addon.scribunto.lua.timeout__ctx_box' value='app'></input>
  </div>
  
  <!-- DIV:help -->
  <div id='xowa.addon.scribunto.lua.timeout_help_div' class='xohelp_div'>
    <div id='xowa.addon.scribunto.lua.timeout_help_msg' class='xohelp_msg'><p>&#35; of milliseconds before canceling Lua call
</p>
</div>
  </div>
  
  <div class="xocfg_row flex_div">
    <!-- BTN:help_item -->
    <div class='xocfg_itm_help'>
      <span class='xoimg_btn_x16 xoimg_help_tip' href='javascript:void(0)' onclick='return xo.help.toggle("xowa.addon.scribunto.lua.timeout_polling")' title='view more info'>&nbsp;</span>
    </div>
    
    <!-- TEXT:key -->
    <div id='xowa.addon.scribunto.lua.timeout_polling__name' class='xocfg_itm_name'>Lua timeout polling</div>

    <!-- BTN:undo -->
    <div id='xowa.addon.scribunto.lua.timeout_polling__undo' data-xocfg-type='int' class='xocfg_itm_delete xocfg_itm_hide'>
      <span class='xoimg_btn_x16 xoimg_list_undo' onclick='return xo.cfg_edit.delete__send("xowa.addon.scribunto.lua.timeout_polling")' title="reset to &quot;1&quot;">&nbsp;</span>
    </div>
    
    <!-- TEXT:val -->
    <div class='xocfg_itm_data'>
<input id="xowa.addon.scribunto.lua.timeout_polling" data-xocfg-key="xowa.addon.scribunto.lua.timeout_polling" data-xocfg-type="int" accesskey="d" class="xocfg_data__int" type="text" value="1"></input></div>
    
    <!-- HIDDEN:key,ctx -->
    <input type='hidden' id='xowa.addon.scribunto.lua.timeout_polling__key_box' value='xowa.addon.scribunto.lua.timeout_polling'></input>
    <input type='hidden' id='xowa.addon.scribunto.lua.timeout_polling__ctx_box' value='app'></input>
  </div>
  
  <!-- DIV:help -->
  <div id='xowa.addon.scribunto.lua.timeout_polling_help_div' class='xohelp_div'>
    <div id='xowa.addon.scribunto.lua.timeout_polling_help_msg' class='xohelp_msg'><p>&#35; of milliseconds before checking for timeout.
For example, with a timeout of 4000:
</p>

<dl>
  <dd> A timeout polling of 1 will check roughly 4000 times before timing out.
  </dd>
  <dd> A timeout polling of 1000 will check roughly 4 times before timing out.
  </dd>
</dl>

<p>This setting should be left at 1. It is meant to &quot;tweak&quot; certain outlier situations should they arise.
</p>
</div>
  </div>
  
  <div class="xocfg_row flex_div">
    <!-- BTN:help_item -->
    <div class='xocfg_itm_help'>
      <span class='xoimg_btn_x16 xoimg_help_tip' href='javascript:void(0)' onclick='return xo.help.toggle("xowa.addon.scribunto.lua.timeout_busy_wait")' title='view more info'>&nbsp;</span>
    </div>
    
    <!-- TEXT:key -->
    <div id='xowa.addon.scribunto.lua.timeout_busy_wait__name' class='xocfg_itm_name'>Lua timeout busy wait</div>

    <!-- BTN:undo -->
    <div id='xowa.addon.scribunto.lua.timeout_busy_wait__undo' data-xocfg-type='int' class='xocfg_itm_delete xocfg_itm_hide'>
      <span class='xoimg_btn_x16 xoimg_list_undo' onclick='return xo.cfg_edit.delete__send("xowa.addon.scribunto.lua.timeout_busy_wait")' title="reset to &quot;250&quot;">&nbsp;</span>
    </div>
    
    <!-- TEXT:val -->
    <div class='xocfg_itm_data'>
<input id="xowa.addon.scribunto.lua.timeout_busy_wait" data-xocfg-key="xowa.addon.scribunto.lua.timeout_busy_wait" data-xocfg-type="int" accesskey="d" class="xocfg_data__int" type="text" value="250"></input></div>
    
    <!-- HIDDEN:key,ctx -->
    <input type='hidden' id='xowa.addon.scribunto.lua.timeout_busy_wait__key_box' value='xowa.addon.scribunto.lua.timeout_busy_wait'></input>
    <input type='hidden' id='xowa.addon.scribunto.lua.timeout_busy_wait__ctx_box' value='app'></input>
  </div>
  
  <!-- DIV:help -->
  <div id='xowa.addon.scribunto.lua.timeout_busy_wait_help_div' class='xohelp_div'>
    <div id='xowa.addon.scribunto.lua.timeout_busy_wait_help_msg' class='xohelp_msg'><p>&#35; of milliseconds before entering timeout poll
This setting should be left at 250 (or higher). It is also meant to &quot;tweak&quot; certain outlier situations.
<br/>
Background:
</p>

<ul>
  <li> On Windows, a sleep call can take 15 ms. This could potentially cause each Lua call to take 15 ms.
  </li>
  <li> Some pages / templates will call Lua hundreds of times. (For example: the Weather Box on <a href="/site/en.wikipedia.org/wiki/Aruba" tabindex="-1">http://en.wikipedia.org/wiki/Aruba</a> or the Citations on <a href="/site/en.wikipedia.org/wiki/Earth" tabindex="-1">http://en.wikipedia.org/wiki/Earth</a> )
  </li>
  <li> The busy wait is a primitive way to limit a wait to 1 ms (or less) before entering a more expensive sleep
  </li>
  <li> A higher timeout busy wait value is more performant, but the disadvantage is that the UI will be locked up for longer
  </li>
</ul>
<dl>
  <dd> For example, a busy wait of 250 means that the code will loop for 250 milliseconds before entering a sleep.
  </dd>
  <dd> For sub-second values, this freezing will be unnoticeable
  </dd>
</dl>

<p>For reference, here is the corresponding code
</p>
<pre style="overflow:auto;">
long time_bgn = System.currentTimeMillis();
long time_woke = time_bgn;
while (true) {
  byte[] rv = stream_read.Data();
  if (rv != null) return rv;
  long time_now = System.currentTimeMillis();
  if (time_now &gt; time_woke + server_timeout_busy_wait) {
    if (time_now &gt; time_bgn + server_timeout) throw Xoa_xtn_scribunto.err_(&quot;lua_timeout: timeout={0} cmd={1}&quot;, server_timeout, String_.new_utf8_(cmd_last));
    ThreadAdp_.Sleep(server_timeout_polling);
    time_woke = System.currentTimeMillis();
  }
}
</pre>
</div>
  </div>
  

</div>

</div>

    </div>
  </div>
</div>


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        <li><a href="http://xowa.org/home/wiki/App/Setup/System_requirements.html" title='Get XOWA&apos;s system requirements'>Requirements</a></li>
        <li><a href="http://xowa.org/home/wiki/App/Setup/Installation.html" title='Get instructions for installing XOWA'>Installation</a></li>
        <li><a href="http://xowa.org/home/wiki/App/Import/Simple_Wikipedia.html" title='Learn how to set up Simple Wikipedia'>Simple Wikipedia</a></li>
        <li><a href="http://xowa.org/home/wiki/App/Import/English_Wikipedia.html" title='Learn how to set up English Wikipedia'>English Wikipedia</a></li>
        <li><a href="http://xowa.org/home/wiki/App/Import/Other_wikis.html" title='Learn how to set up other Wikipedias'>Other Wikipedias</a></li>
      </ul>
    </div>
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  <div class="portal" id='xowa-portal-android'>
    <h3>Android</h3>
    <div class="body">
      <ul>
        <li><a href="http://xowa.org/home/wiki/Android/Setup.html" title='Setup XOWA on your Android device'>Setup</a></li>
        <li><a href="https://www.youtube.com/watch?v=jsMTBxGweUw" title="See a video of XOWA Android in action">Video</a></li>
      </ul>
    </div>
  </div>

  <div class="portal" id='xowa-portal-help'>
    <h3>Help</h3>
    <div class="body">
      <ul>
        <li><a href="http://xowa.org/home/wiki/Help/About.html" title='Get more information about XOWA'>About</a></li>
        <li><a href="http://xowa.org/home/wiki/Help/Contents.html" title='View a list of help topics'>Contents</a></li>
        <li><a href="http://xowa.org/home/wiki/Help/Media.html" title='Read what others have written about XOWA'>Media</a></li>
        <li><a href="http://xowa.org/home/wiki/Help/Feedback.html" title='Questions? Comments? Leave feedback for XOWA'>Feedback</a></li>
      </ul>
    </div>
  </div>
  
  <div class="portal" id='xowa-portal-blog'>
    <h3>Blog</h3>
    <div class="body">
      <ul>
        <li><a href="http://xowa.org/home/wiki/Blog.html" title='Follow XOWA''s development process'>Current</a></li>
      </ul>
    </div>
  </div>

  <div class="portal" id='xowa-portal-links'>
    <h3>Links</h3>
    <div class="body">
      <ul>
        <li><a href="http://dumps.wikimedia.org/backup-index.html" title="Get wiki datababase dumps directly from Wikimedia">Wikimedia dumps</a></li>
        <li><a href="https://archive.org/search.php?query=xowa" title="Search archive.org for XOWA files">XOWA @ archive.org</a></li>
        <li><a href="http://en.wikipedia.org" title="Visit Wikipedia (and compare to XOWA!)">English Wikipedia</a></li>
      </ul>
    </div>
  </div>

  <div class="portal" id='xowa-portal-donate'>
    <h3>Donate</h3>
    <div class="body">
      <ul>
        <li><a href="https://archive.org/donate/index.php" title="Support archive.org!">archive.org</a></li><!-- listed first due to recent fire damages: http://blog.archive.org/2013/11/06/scanning-center-fire-please-help-rebuild/ -->
        <li><a href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector" title="Support Wikipedia!">Wikipedia</a></li>
        <li><a href="http://xowa.org/home/wiki/Help/Donate.html" title="Support XOWA!">XOWA</a></li>
      </ul>
    </div>
  </div>
  
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