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<!--
 Copyright (c) 2000-2017 Ericsson Telecom AB
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 Contributors:
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  Csorba, Mate
  Forstner, Matyas
  Szabados, Kristof
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<title>substr</title>
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<hr>
<h1>substr</h1>
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<p>This function returns a substring from a value that is of type <b><font face="Courier New">bitstring</font></b>, <b><font face="Courier New">hexstring</font></b>, <b><font
  face="Courier New">octetstring</font></b>, or any character string. The type of the substring is the root type of the input value. The starting point of substring to return is defined by the second in
parameter (index). Indexing starts from zero. The third input parameter defines the length of the substring to be returned.
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<p>Related keyword:</p>
<ul>
  <li><b><font face="Courier New" size="4" color="#003258"><a href="integer.html">integer</a></font></b></li>
  <li><b><font face="Courier New" size="4" color="#003258"><a href="charstring.html">charstring</a></font></b></li>
  <li><b><font face="Courier New" size="4" color="#003258"><a href="hexstring.html">hexstring</a></font></b></li>
  <li><b><font face="Courier New" size="4" color="#003258"><a href="bitstring.html">bitstring</a></font></b></li>
  <li><b><font face="Courier New" size="4" color="#003258"><a href="octetstring.html">octetstring</a></font></b></li>
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    <h3 align="center"><font face="Courier New" color="#003258" size="5"><b>substr</b></font><font face="Courier New" color="#003258" size="5"><b>(</b></font><i>any_string_type value, </i><b>in
    integer</b><i> index, </i><b>in integer</b><i> returncount</i><font face="Courier New" color="#003258" size="5"><b>) return input_string_type</b></font></h3>
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<p>Example 1:</p>
<p><font face="Courier New"> var charstring v_nyilatko := substr( "My name is JJ", 11, 2 ); </font></p>
<p>The variable v_nyilatko will contain the charstring value "JJ".
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