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208 lines
6.3 KiB
XML
208 lines
6.3 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<!-- EN-Revision: 6b4f7be65f8800a8cf0202a98bb45024f4e3c703 Maintainer: andresdzphp Status: ready -->
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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.expect-expectl">
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<refnamediv>
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<refname>expect_expectl</refname>
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<refpurpose>Espera a que la salida de un proceso coincida con un patrón,
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se supere un determinado periodo de tiempo, o se alcance un <acronym>EOF</acronym>
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</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<type>int</type><methodname>expect_expectl</methodname>
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<methodparam><type>resource</type><parameter>expect</parameter></methodparam>
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<methodparam><type>array</type><parameter>cases</parameter></methodparam>
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<methodparam choice="opt"><type>array</type><parameter role="reference">match</parameter></methodparam>
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</methodsynopsis>
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<para>
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Espera a que la salida de un proceso coincida con un patrón, se supere un determinado
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periodo de tiempo, o se alcance un <acronym>EOF</acronym>.
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</para>
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<para>
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Si se proporciona el parámetro <parameter>match</parameter>, se le asignará el resultado de la
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búsqueda. La cadena que coincide se encuentra en <parameter>match[0]</parameter>.
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Las subcadenas que coincidan (de acuerdo a los paréntesis) con el patrón original se encuentran
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en <parameter>match[1]</parameter>, <parameter>match[2]</parameter>, y así
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hasta <parameter>match[9]</parameter> (límite establecido por libexpect).
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry>
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<term><parameter>expect</parameter></term>
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<listitem>
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<para>
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Flujo de Expect, abierto anteriormente con
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<function>expect_popen</function>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>cases</parameter></term>
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<listitem>
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<para>
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Matriz con casos de expect. Cada caso será un array indexado, tal
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como se describe en la siguiente tabla:
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<table>
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<title>Array de Caso de Expect</title>
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<tgroup cols="5">
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<thead>
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<row>
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<entry>Clave de índice</entry>
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<entry>Tipo de valor</entry>
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<entry>Descripción</entry>
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<entry>Es Obligatorio</entry>
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<entry>Valor por omisión</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>0</entry>
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<entry>string</entry>
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<entry>patrón, que buscará coincidencias en la salida del flujo</entry>
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<entry>sí</entry>
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<entry></entry>
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</row>
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<row>
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<entry>1</entry>
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<entry>mixto</entry>
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<entry>valor, que devolverá esta función, si coincidiera el patrón</entry>
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<entry>sí</entry>
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<entry></entry>
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</row>
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<row>
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<entry>2</entry>
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<entry>integer</entry>
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<entry>
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tipo de patrón, de entre:
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<link linkend="constants.expect.exp-glob"><constant>EXP_GLOB</constant></link>,
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<link linkend="constants.expect.exp-exact"><constant>EXP_EXACT</constant></link>
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o
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<link linkend="constants.expect.exp-regexp"><constant>EXP_REGEXP</constant></link>
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</entry>
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<entry>no</entry>
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<entry><link linkend="constants.expect.exp-glob"><constant>EXP_GLOB</constant></link></entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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Devuelve valores asociados con el patrón que coincida.
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</para>
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<para>
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En caso de error esta función devuelve:
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<link linkend="constants.expect.exp-eof"><constant>EXP_EOF</constant></link>,
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<link linkend="constants.expect.exp-timeout"><constant>EXP_TIMEOUT</constant></link>
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o
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<link linkend="constants.expect.exp-fullbuffer"><constant>EXP_FULLBUFFER</constant></link>
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</para>
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</refsect1>
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<refsect1 role="changelog">
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&reftitle.changelog;
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<para>
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<informaltable>
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<tgroup cols="2">
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<thead>
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<row>
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<entry>&Version;</entry>
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<entry>&Description;</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>0.2.1</entry>
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<entry>
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Antes de la versión 0.2.1, en el parámetro <parameter>match</parameter> se devolvía el string que
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coincidiera, no un array de substrings coincidentes.
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</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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</para>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title>Ejemplo de <function>expect_expectl</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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// Copias de los archivos de host remoto:
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ini_set("expect.timeout", 30);
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$stream = fopen("expect://scp user@remotehost:/var/log/messages /home/user/messages.txt", "r");
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$cases = array(
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// array(patrón, valor que se devolverá si el patrón es encontrado)
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array("password:", "asked for password"),
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array("yes/no)?", "asked for yes/no")
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);
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while (true) {
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switch (expect_expectl($stream, $cases)) {
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case "asked for password":
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fwrite($stream, "my password\n");
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break;
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case "asked for yes/no":
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fwrite($stream, "yes\n");
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break;
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case EXP_TIMEOUT:
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case EXP_EOF:
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break 2; // break tanto la sentencia switch y el bucle while
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default:
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die "Error has occurred!";
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}
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}
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fclose($stream);
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?>
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]]>
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</programlisting>
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</example>
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</para>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><function>expect_popen</function></member>
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</simplelist>
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</para>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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