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<h2><a name="query">CONSULTA</a></h2><h3><a name="query-term">Consulta de un s髄o t閞mino</a></h3><p>La consulta especifica s髄o un t閞mino para recibir todos los documentos que contienen el t閞mino. Ej:</p><p class="example">namazu</p><h3><a name="query-and">Consulta AND</a></h3> <p>La consulta especifica dos o m醩 t閞minos para recibir todos los documentos que contienen ambos t閞minos. Tu puedes insertar el operador <code class="operator">and</code> entre los t閞minos. Ej:</p><p class="example">Linux and Netscape</p><p>Tu puedes omitir el operador <code class="operator">and</code>. Los t閞minos los cuales est醤 separados por uno o m醩 espacios se asume que son una consulta AND.</p><h3><a name="query-or">Consulta OR</a></h3><p>La consulta especifica dos o m醩 t閞minos para recibir todos los documentos que contienen alguno de los t閞minos. Tu puedes insertar el operador<code class="operator">or</code> entre los t閞minos. Ej:</p><p class="example">Linux or FreeBSD</p><h3><a name="query-not">Operador NOT</a></h3><p>La consulta especifica dos o m醩 terminos para recibir todos los documentosque contienen el primer t閞mino pero no contienen los t閞minos siguientes. Tu puedes insertar el operador <code class="operator">not</code>entre los t閞minos para hacer una consulta NOT. Ej:</p><p class="example">Linux not UNIX</p><h3><a name="query-grouping">Agrupando</a></h3><p>Tu puedes agrupar consultas encerr醤dolas entre par閚tesis. Los par閚tesis deben estar separados por uno o m醩 espacios. Ej:</p><p class="example">( Linux or FreeBSD ) and Netscape not Windows</p><h3><a name="query-phrase">Buscandos frases</a></h3><p>Tu puedes buscar una frase la cu醠 consiste de dos o m醩 t閞minos encerradosentre comillas como<code class="operator">"..."</code> o con llaves como<code class="operator">{...}</code>.La precisi髇 de la b鷖queda por frase no es el 100 %, y puede causar ocasionalmente alg鷑 resultado err髇eo. Ej:</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 terminatedwith <code>net</code>)</dl><h3><a name="query-regex">Regular expressions</a></h3><p>You can use regular expressions for pattern matching. Theregular expressions must be surrounded by slashes like <codeclass="operator">/.../</code>. Namazu uses <ahref="http://www.ruby-lang.org/">Ruby</a>'s regularregular expressions engine. It offers generally <ahref="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 forMail/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 ofalphabet characters. In other words, Namazu doescase-insensitive pattern matching in any time.<li>Japanese phrases are forced to be segmented intomorphemes automatically and are handled them as <ahref="#query-phrase">phrase searching</a>. This processingcauses invalid segmentation occasionally.<li>Alphabet, numbers or a part of symbols (duplicated inASCII) characters which defined in JIS X 0208 (JapaneseIndustrial 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 takesmore time than other methods.<li>If you want to use <code class="operator">and</code>,<code class="operator">or</code> or <codeclass="operator">not</code> simply as terms, you cansurround them respectively with double quotes like <codeclass="operator">"..."</code> or braces like <codeclass="operator">{...}</code>. <!-- fooYou must choose the latter with Tkanamzu or namazu.el.--></ul>
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