File: part.xml

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<?xml version="1.0" encoding="UTF-8"?>
<!--
 * Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
 * Copyright (C) INRIA - 
 * 
 * This file must be used under the terms of the CeCILL.
 * This source file is licensed as described in the file COPYING, which
 * you should have received as part of this distribution.  The terms
 * are also available at    
 * http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
 *
 -->
<refentry version="5.0-subset Scilab" xml:id="part" xml:lang="en"
          xmlns="http://docbook.org/ns/docbook"
          xmlns:xlink="http://www.w3.org/1999/xlink"
          xmlns:svg="http://www.w3.org/2000/svg"
          xmlns:ns5="http://www.w3.org/1999/xhtml"
          xmlns:mml="http://www.w3.org/1998/Math/MathML"
          xmlns:db="http://docbook.org/ns/docbook">
  <info>
    <pubdate>$LastChangedDate: 2006-08-08 16:57:13 +0200 (Tue, 08 Aug 2006)
    $</pubdate>
  </info>

  <refnamediv>
    <refname>part</refname>

    <refpurpose>extração de strings</refpurpose>
  </refnamediv>

  <refsynopsisdiv>
    <title>Seqüência de Chamamento</title>

    <synopsis>[strings_out] = part(strings_in, v)</synopsis>
  </refsynopsisdiv>

  <refsection>
    <title>Parâmetros</title>

    <variablelist>
      <varlistentry>
        <term>strings_in, strings_out</term>

        <listitem>
          <para>matriz de strings</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term>v</term>

        <listitem>
          <para>vetor linha de inteiros</para>
        </listitem>
      </varlistentry>
    </variablelist>
  </refsection>

  <refsection>
    <title>Descrição</title>

    <para>Seja <literal>s[k]</literal> o caractere <literal>k</literal> do
    string <literal>s</literal> (ou o espaço em branco se <literal>k
    &gt;length(s)</literal>).</para>

    <para><literal>part</literal> retorna <literal>strings_out</literal>, uma
    matriz de strings, tal que <literal>strings_out(i,j)</literal> é o string
    <literal>"s[v(1)]...s[v(n)]"</literal> (
    <literal>s=strings_in(i,j)</literal> ).</para>
  </refsection>

  <refsection>
    <title>Exemplos</title>

    <programlisting role="example"><![CDATA[ 
// retorna caracteres da posição 8 a 11
part("Como usar ""part"" ?",8:11)

// retorna caracteres da posição 2 a 4 para cada elemento
// caractere inexistente substituído por ''
c = part(['a','abc','abcd'],2:4)

// retorna o caractere da posição 1 para cada elemento e adiciona caracteres da posição 4 a 7 de cada elemento
c = part(['abcdefg','hijklmn','opqrstu'],[1,4:7]);

// retorna o caractere 4 para cada elemento, adiciona caracteres da posição 1 a 7 e adiciona o caractere da posição 4 para cada elemento
c = part(['abcdefg','hijklmn','opqrstu'],[4,1:7,4]);

// retorna o caractere da posição 1, adiciona de novo o caractere da posição 1 e o caractere da posição 2
c=part(['a','abc','abcd'],[1,1,2])

// a a a  
part(['a','abc','abcd'],[1])

// aa aa aa 
part(['a','abc','abcd'],[1,1])

// aa aab aab 
part(['a','abc','abcd'],[1,1,2])
 ]]></programlisting>
  </refsection>

  <refsection>
    <title>Ver Também</title>

    <simplelist type="inline">
      <member><link linkend="string">string</link></member>

      <member><link linkend="length">length</link></member>
    </simplelist>
  </refsection>
</refentry>