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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="strsplit" 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:ns4="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>strsplit</refname>
<refpurpose>split a string into a vector of strings</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Calling Sequence</title>
<synopsis>
v = strsplit(str,ind)
[v, matched_separators] = strsplit(str)
[v, matched_separators] = strsplit(str, matrix_of_strings, limit)
[v, matched_separators] = strsplit(str, regexp_pattern, limit)
</synopsis>
</refsynopsisdiv>
<refsection>
<title>Parameters</title>
<variablelist>
<varlistentry>
<term>str</term>
<listitem>
<para>A character string to split</para>
</listitem>
</varlistentry>
<varlistentry>
<term>ind</term>
<listitem>
<para>a vector of stricly increasing indices in the interval
<literal>[1 length(str)-1] </literal>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>v</term>
<listitem>
<para>the resulting column vector of string (dimension ><literal>
size(ind,'*')+1</literal>).</para>
</listitem>
</varlistentry>
<varlistentry>
<term>matched_separators</term>
<listitem>
<para>a column vector of the matched separators</para>
</listitem>
</varlistentry>
<varlistentry>
<term>matrix_of_strings</term>
<listitem>
<para>a matrix of strings to search in str</para>
</listitem>
</varlistentry>
<varlistentry>
<term>regexp_pattern</term>
<listitem>
<para>a regular expression pattern</para>
</listitem>
</varlistentry>
<varlistentry>
<term>limit</term>
<listitem>
<para>maximum of limit elements</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Description</title>
<para><literal>v = strsplit(str, ind)</literal> splits the string
<literal>str</literal> into a vector of strings at the points given by the
indices in <literal>ind</literal> (after each characters pointed to by the
index in ind).</para>
<para><literal>strsplit(str)</literal> returns same thing as
<literal>strsplit(str,1:length(str)-1).</literal></para>
<para><literal>strsplit(str, regexp_pattern, limit)</literal> returns an
column vector of strings, each of which is a substring of str formed by
splitting it on boundaries formed by the case-sensitive regular expression
pattern.</para>
<para>If there are n occurrences of pattern , the returned array will
contain n+1 items.</para>
<para>For example, if there is no occurrence of pattern , an array with
only one element will be returned. Of course, this is also true if str is
empty.</para>
<para>If limit is set, the returned array will contain a maximum of limit
elements with the last element containing the whole rest of string.</para>
<para><literal>strsplit(str, matrix_of_strings, limit)</literal> , str is
splitted on any of elements. It allows to split on different separators
for users without regex knowledge.</para>
<para>If <literal>strsplit()</literal> is called with a second output
argument, the column vector of the matched separators is returned.</para>
</refsection>
<refsection>
<title>Examples</title>
<programlisting role="example"><![CDATA[
S='strsplit splits a string into a vector of strings';
strsplit(S,[15 25 30])
ind=strindex(S,' ')
[r_1, r_2] = strsplit("abcd")
[r_1, r_2] = strsplit("root:x:0:0:root:/root:/bin/bash",":",5)
[r_1, r_2] = strsplit("abc,def:ijk,:lmo","/:|,/")
[r_1, r_2] = strsplit("abc,def:ijk,:lmo",[":";","])
strsplit("abcdef2ghijkl3mnopqr6stuvw7xyz","/\d+/")
[r_1, r_2] = strsplit("abcdef2ghijkl3mnopqr6stuvw7xyz","/\d+/",2)
]]></programlisting>
</refsection>
<refsection>
<title>See Also</title>
<simplelist type="inline">
<member><link linkend="strcat"> strcat</link></member>
<member><link linkend="tokens"> tokens</link></member>
<member><link linkend="regexp"> regexp</link></member>
</simplelist>
</refsection>
<refsection>
<title>Authors</title>
<variablelist>
<varlistentry>
<term>S. Steer, Allan CORNET</term>
<listitem>
<para>INRIA, DIGITEO</para>
</listitem>
</varlistentry>
</variablelist>
</refsection>
</refentry>
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