mirror of
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219 lines
7.0 KiB
XML
219 lines
7.0 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision$ -->
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<!-- EN-Revision: 1.1 Maintainer: thomasgm Status: ready -->
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<sect1 id="language.function.if">
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<title>if,elseif,else</title>
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<para>
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Comandos {if} no Smarty tem muito da mesma flexibilidade do php,
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com algumas características à mais para o sistema de template.
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Todo <emphasis>if</emphasis> deve ter o seu
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<emphasis>/if</emphasis>. <emphasis>else</emphasis> e
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<emphasis>elseif</emphasis> também são permitidos. Todos os
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condicionais do PHP são reconhecidos, tais como ||, or, &&, and, etc.
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</para>
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<para>
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A seguir está uma lsita dos qualificadores, que devem estar separados dos elementos
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por espaço. Note que itens listado entre [conchetes] são opcionais. Os equivalentes
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em PHP são mostrados quando aplicáveis.
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</para>
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<informaltable frame="all">
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<tgroup cols="4">
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<colspec colname="qualifier" align="center" />
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<colspec colname="alternates" align="center" />
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<colspec colname="example" />
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<colspec colname="meaning" />
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<colspec colname="php" />
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<thead>
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<row>
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<entry>Qualificador</entry>
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<entry>Alternativas</entry>
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<entry>Exemplo de sintaxe</entry>
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<entry>Significado</entry>
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<entry>Equivalente no PHP</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>==</entry>
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<entry>eq</entry>
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<entry>$a eq $b</entry>
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<entry>iguais</entry>
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<entry>==</entry>
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</row>
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<row>
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<entry>!=</entry>
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<entry>ne, neq</entry>
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<entry>$a neq $b</entry>
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<entry>não iguais</entry>
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<entry>!=</entry>
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</row>
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<row>
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<entry>></entry>
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<entry>gt</entry>
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<entry>$a gt $b</entry>
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<entry>maior que</entry>
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<entry>></entry>
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</row>
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<row>
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<entry><</entry>
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<entry>lt</entry>
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<entry>$a lt $b</entry>
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<entry>menor que</entry>
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<entry><</entry>
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</row>
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<row>
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<entry>>=</entry>
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<entry>gte, ge</entry>
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<entry>$a ge $b</entry>
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<entry>maior ou igual à</entry>
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<entry>>=</entry>
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</row>
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<row>
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<entry><=</entry>
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<entry>lte, le</entry>
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<entry>$a le $b</entry>
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<entry>menor ou igual à</entry>
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<entry><=</entry>
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</row>
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<row>
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<entry>!</entry>
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<entry>not</entry>
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<entry>not $a</entry>
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<entry>negação (unary)</entry>
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<entry>!</entry>
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</row>
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<row>
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<entry>%</entry>
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<entry>mod</entry>
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<entry>$a mod $b</entry>
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<entry>módulo</entry>
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<entry>%</entry>
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</row>
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<row>
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<entry>is [not] div by</entry>
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<entry></entry>
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<entry>$a is not div by 4</entry>
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<entry>divisível por</entry>
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<entry>$a % $b == 0</entry>
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</row>
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<row>
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<entry>is [not] even</entry>
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<entry></entry>
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<entry>$a is not even</entry>
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<entry>[not] an even number (unary)</entry>
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<entry>$a % 2 == 0</entry>
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</row>
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<row>
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<entry>is [not] even by</entry>
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<entry></entry>
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<entry>$a is not even by $b</entry>
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<entry>grouping level [not] even</entry>
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<entry>($a / $b) % 2 == 0</entry>
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</row>
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<row>
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<entry>is [not] odd</entry>
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<entry></entry>
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<entry>$a is not odd</entry>
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<entry>[not] an odd number (unary)</entry>
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<entry>$a % 2 != 0</entry>
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</row>
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<row>
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<entry>is [not] odd by</entry>
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<entry></entry>
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<entry>$a is not odd by $b</entry>
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<entry>[not] an odd grouping</entry>
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<entry>($a / $b) % 2 != 0</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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<example>
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<title>comandos if</title>
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<programlisting>
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<![CDATA[
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{if $name eq "Fred"}
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Welcome Sir.
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{elseif $name eq "Wilma"}
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Welcome Ma'am.
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{else}
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Welcome, whatever you are.
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{/if}
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{* um exemplo com "or" *}
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{if $name eq "Fred" or $name eq "Wilma"}
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...
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{/if}
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{* o mesmo que acima *}
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{if $name == "Fred" || $name == "Wilma"}
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...
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{/if}
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{* a seguinte sintaxe não irá funcionar, qualificadores de condição
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devem estar separados dos elementos em torno por espaços *}
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{if $name=="Fred" || $name=="Wilma"}
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...
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{/if}
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{* parenteses são permitidos *}
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{if ( $amount < 0 or $amount > 1000 ) and $volume >= #minVolAmt#}
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...
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{/if}
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{* você pode também colocar funções php *}
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{if count($var) gt 0}
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...
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{/if}
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{* testa se o valor é par ou impar *}
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{if $var is even}
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...
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{/if}
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{if $var is odd}
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...
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{/if}
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{if $var is not odd}
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...
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{/if}
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{* verifica se a variável é divisível por 4 *}
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{if $var is div by 4}
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...
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{/if}
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{* test if var is even, grouped by two. i.e.,
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0=even, 1=even, 2=odd, 3=odd, 4=even, 5=even, etc. *}
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{if $var is even by 2}
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...
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{/if}
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{* 0=even, 1=even, 2=even, 3=odd, 4=odd, 5=odd, etc. *}
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{if $var is even by 3}
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...
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{/if}
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]]>
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</programlisting>
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</example>
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</sect1>
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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:"../../../../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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--> |