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added italian docs. thanks to Gianluca Gillini

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messju
2004-12-01 18:55:26 +00:00
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docs/it/designers/language-custom-functions/language-function-eval.xml Normal file
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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision$ -->
<sect1 id="language.function.eval">
<title>eval</title>
<informaltable frame="all">
<tgroup cols="5">
<colspec colname="param" align="center" />
<colspec colname="type" align="center" />
<colspec colname="required" align="center" />
<colspec colname="default" align="center" />
<colspec colname="desc" />
<thead>
<row>
<entry>Nome Attributo</entry>
<entry>Tipo</entry>
<entry>Obbligatorio</entry>
<entry>Default</entry>
<entry>Descrizione</entry>
</row>
</thead>
<tbody>
<row>
<entry>var</entry>
<entry>misto</entry>
<entry>s<EFBFBD></entry>
<entry><emphasis>nessuno</emphasis></entry>
<entry>variabile (o stringa) da valorizzare</entry>
</row>
<row>
<entry>assign</entry>
<entry>stringa</entry>
<entry>no</entry>
<entry><emphasis>nessuno</emphasis></entry>
<entry>la variabile cui verr<72> assegnato l'output</entry>
</row>
</tbody>
</tgroup>
</informaltable>
<para>
eval si usa per valorizzare una variabile come se fosse un
template. Si pu<70> usare per incorporare tag o variabili di template
dentro altre variabili, oppure tag o variabili nelle variabili dei
file di configurazione.
</para>
<para>
Se fornite lo speciale attributo "assign" l'output della funzione
eval sar<61> assegnato a questa variabile invece di essere stampato
in output.
</para>
<note>
<title>Nota tecnica</title>
<para>
La variabili valorizzate con eval sono trattate allo stesso modo
dei template. Seguono le stesse regole di escape e di sicurezza,
come se fossero template
</para>
</note>
<note>
<title>Nota tecnica</title>
<para>
Le variabili valorizzate con eval vengono compilate ad ogni chiamata:
la versione compilata non viene salvata! Comunque, se avete il
caching abilitato, l'output verr<72> messo in cache con il resto del
template.
</para>
</note>
<example>
<title>eval</title>
<programlisting>
setup.conf
----------
emphstart = &lt;b&gt;
emphend = &lt;/b&gt;
title = Welcome to {$company}'s home page!
ErrorCity = You must supply a {#emphstart#}city{#emphend#}.
ErrorState = You must supply a {#emphstart#}state{#emphend#}.
index.tpl
---------
{config_load file="setup.conf"}
{eval var=$foo}
{eval var=#title#}
{eval var=#ErrorCity#}
{eval var=#ErrorState# assign="state_error"}
{$state_error}
OUTPUT:
This is the contents of foo.
Welcome to Foobar Pub &amp; Grill's home page!
You must supply a &lt;b&gt;city&lt;/b&gt;.
You must supply a &lt;b&gt;state&lt;/b&gt;.
</programlisting>
</example>
</sect1>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"../../../../manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->