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<!doctype html public "-//W3C//DTD HTML 3.2 Final//EN">
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<head>
<title>User Defined Fields on the WN server</title>
<link rev="made" href="mailto:john@math.nwu.edu">
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
<meta http-equiv="last-modified" content="Fri, 09 Oct 1998 18:18:09 GMT">
<meta http-equiv="keywords" content="WN fields">
</head>
<body bgcolor="#FFFFFF">
<p>
<a href="http://hopf.math.nwu.edu/"><img
src="images/powered.jpg"
border="0"
width="190"
height="41"
align="right"
alt="WN home page"
></a>
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<strong>Version 2.0.3</strong>
<br>
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<h2 align="center">User Defined Fields on the <em>WN</em> Server</h2>
<hr size="4">
<p>
The maintainer may associate an arbitrary field value to any document in
the <em>WN</em> hierarchy. It is then possible to do <a
href="search.html#fielded">fielded searches</a>.
</p>
<p>
A line like:
</p>
<blockquote>
<code>
<a href="appendixB.html#fdir.field">Field3=</a>any text here
</code>
</blockquote>
<p>
in the <a href="index_desc.html#index"><code>index</code></a> file
associates the text "<code>any text here</code>" with user
defined <code>Field3</code>. The '<code>3</code>' in this example can be
replaced with any number from 0 to 19. A fielded search is invoked by a
URL like:
</p>
<blockquote>
<code>
http://host/dir/search=field3
</code>
</blockquote>
<p>
In addition to fielded searches the user supplied fields can be inserted
in documents. This is done by including a field marker such as:
</p>
<blockquote>
<code>
<!-- #field3 -->
</code>
</blockquote>
<p>
in the file at the point where the value should be inserted. If there is
no <code><a href="appendixB.html#fdir.wrappers">Wrappers=</a></code> or
<code><a href="appendixB.html#fdir.includes">Includes=</a></code> line in
the <a href="index_desc.html#index"><code>index</code></a> file for this
entry then there must be a line like:
</p>
<blockquote>
<code>
<a href="appendixB.html#fdir.attributes.parse">Attributes=parse</a>
</code>
</blockquote>
<p>
so the server knows it is to parse the file to look for the marker. See
the section "<a href="appendixB.html#fdir.attributes">Set File
Attributes</a>" in this guide for more details.
</p>
<!-- #end -->
<hr size="4">
<address>
<em>WN</em> version 2.0.3
<br>
Copyright © 1998 <a href="mailto:john@math.nwu.edu">John Franks
<john@math.nwu.edu></a>
<br>
licensed under the <a href="http://www.opencontent.org/opl.html">
OpenContent Public License</a>
<br>
last-modified: Fri, 09 Oct 1998 18:18:09 GMT
</address>
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