-<h2><a name="query">Query</a></h2>
-
-<h3><a name="query-ignored">Long messages and words are ignored</a></h3>
-<p>
-Messages longer than 100,000 letters or 500,000 bytes are ignored. Words longer than 40 characters are ignored. Attachments are ignored.
-</p>
-
-<h3><a name="query-term">Single term query</a></h3>
-<p>
-The query specifies only one term for retrieving all
-documents which contain the term. e.g.,
-</p>
-
-<p class="example">
-namazu
-</p>
-
-<h3><a name="query-and">AND query</a></h3>
-
-<p>
-The query specifies two or more terms for retrieving all
-documents which contain both terms. You can insert the
-<code class="operator">and</code> operator between the terms. e.g.,
-</p>
-
-<p class="example">
-Linux and Netscape
-</p>
-
-<p>
-You can ommit the <code class="operator">and</code> operator. Terms which is
-separated by one ore more spaces is assumed to be AND query.
-</p>
-
-<h3><a name="query-or">OR query</a></h3>
-<p>
-The query specifies two or more terms for retrieving all
-documents which contain either term. You can insert the
-<code class="operator">or</code> operator between the terms.
-e.g.,
-</p>
-
-<p class="example">
-Linux or FreeBSD
-</p>
-
-<h3><a name="query-not">NOT query</a></h3>
-<p>
-The query specifies two or more terms for retrieving all
-documents which contain a first term but does't contain the
-following terms. You can insert the <code class="operator">not</code>
-operator between the terms to do NOT query. e.g.,
-</p>
-
-<p class="example">
-Linux not UNIX
-</p>
-
-
-<h3><a name="query-grouping">Grouping</a></h3>
-<p>
-You can group queries by surrounding them by
-parentheses. The parentheses should be separated by one or
-more spaces. e.g.,
-</p>
-
-<p class="example">
-( Linux or FreeBSD ) and Netscape not Windows
-</p>
-
-<h3><a name="query-phrase">Phrase searching</a></h3>
-<p>
-You can search for a phrase which consists of two or more terms
-by surrounding them with double quotes like
-<code class="operator">"..."</code> or with braces like <code class="operator">{...}</code>.
-In Namazu, precision of phrase searching is not 100 %,
-so it causes wrong results occasionally. e.g.,
-</p>
-
-<p class="example">
-{GNU Emacs}
-</p>
-
-<!-- foo
-<p>
-You must choose the latter with Tkanamzu or namazu.el.
-</p>
--->
-
-<h3><a name="query-substring">Substring matching</a></h3>
-<p>
-The are three types of substring matching searching.
-</p>
-
-<dl>
-<dt>Prefix matching
-<dd><code class="example">inter*</code> (terms which begin with <code>inter</code>)
-<dt>Inside matching
-<dd><code class="example">*text*</code> (terms which contain <code>text</code>)
-<dt>Suffix matching
-<dd><code class="example">*net</code> (terms which terminated
-with <code>net</code>)
-</dl>
-
-
-<h3><a name="query-regex">Regular expressions</a></h3>
-
-<p>
-You can use regular expressions for pattern matching. The
-regular expressions must be surrounded by slashes like <code
-class="operator">/.../</code>. Namazu uses <a
-href="http://www.ruby-lang.org/">Ruby</a>'s regular
-regular expressions engine. It offers generally <a
-href="http://www.perl.com/">Perl</a> compatible flavor.
-e.g.,
-</p>
-
-<p class="example">
-/pro(gram|blem)s?/
-</p>
-
-
-<h3><a name="query-field">Field-specified searching</a></h3>
-<p>
-You can limit your search to specific fields such as
-<code>Subject:</code>, <code>From:</code>,
-<code>Message-Id:</code>. It's especially convenient for
-Mail/News documents. e.g.,
-</p>
-
-<ul>
-<li><code class="example">+subject:Linux</code><br>
-(Retrieving all documents which contain <code>Linux</code>
-in a <code>Subject:</code> field)
-
-<li><code class="example">+subject:"GNU Emacs"</code><br>
-(Retrieving all documents which contain <code>GNU Emacs</code>
-in a <code>Subject:</code> field)
-
-<li><code class="example">+from:foo@bar.jp</code><br>
-(Retrieving all documents which contain <code>foo@bar.jp</code>
-in a <code>From:</code> field)
-
-
-<li><code class="example">+message-id:<199801240555.OAA18737@foo.bar.jp></code><br>
-(Retrieving a certain document which contains specified
-<code>Message-Id:</code>)
-</ul>
-
-<h3><a name="query-notes">Notes</a></h3>
-
-<ul>
-<li>In any queries, Namazu ignores case distinctions of
-alphabet characters. In other words, Namazu does
-case-insensitive pattern matching in any time.
-
-
-<li>Japanese phrases are forced to be segmented into
-morphemes automatically and are handled them as <a
-href="#query-phrase">phrase searching</a>. This processing
-causes invalid segmentation occasionally.
-
-
-<li>Alphabet, numbers or a part of symbols (duplicated in
-ASCII) characters which defined in JIS X 0208 (Japanese
-Industrial Standards) are handled as ASCII characters.
-
-<li>Namazu can handle a term which contains symbols like
-<code>TCP/IP</code>. Since this handling isn't complete,
-you can describe <code>TCP and IP</code> instead of
-<code>TCP/IP</code>, but it may cause noisy results.
-
-
-<li>Substring matching and field-specified searching takes
-more time than other methods.
-
-<li>If you want to use <code class="operator">and</code>,
-<code class="operator">or</code> or <code
-class="operator">not</code> simply as terms, you can
-surround them respectively with double quotes like <code
-class="operator">"..."</code> or braces like <code
-class="operator">{...}</code>.
-
-<!-- foo
-You must choose the latter with Tkanamzu or namazu.el.
--->
-
-</ul>
-