83 lines
5.1 KiB
HTML
83 lines
5.1 KiB
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<meta name="DC.Type" content="task" />
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<meta name="DC.Title" content="Define lists within lists" />
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<meta name="abstract" content="A list within a list can be either a list that can be specified more than once for a parameter (simple or mixed list), or a list that can be specified for a value within a mixed list." />
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<meta name="description" content="A list within a list can be either a list that can be specified more than once for a parameter (simple or mixed list), or a list that can be specified for a value within a mixed list." />
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<meta name="DC.subject" content="parameter, defining, with list within list, list within list, command, CL, Element (ELEM) statement, example" />
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<meta name="DC.Relation" scheme="URI" content="defdlclhll.htm" />
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<title>Define lists within lists</title>
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<body id="dlist"><a name="dlist"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Define lists within lists</h1>
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<div><p>A list within a list can be either a list that can be specified
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more than once for a parameter (simple or mixed list), or a list that can
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be specified for a value within a mixed list.</p>
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<div class="section"> <p>The following is an example of lists within a list. </p>
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<pre>STMT((START RESPND) (ADDDSP CONFRM))</pre>
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<p>The outside set of parentheses enclose the list that can be
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specified for the parameter (the outer list) while each set of inner parentheses
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encloses a list within a list (an inner list).</p>
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<p>In the following example,
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a mixed list is defined within a simple list. A mixed list is specified,
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and the MAX value on the PARM statement is greater than 1; therefore, the
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mixed list can be specified up to the number of times specified on the MAX
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parameter.</p>
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<pre> PARM KWD(PARM1) TYPE(LIST1) MAX(5)
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LIST1: ELEM TYPE(*CHAR) LEN(10)
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ELEM TYPE(*DEC) LEN(3 0)</pre>
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<p>In this example, the two elements can be specified up to five
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times. When a value is entered for this parameter, it could appear as follows:</p>
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<pre>PARM1((VAL1 1.0) (VAR2 2.0) (VAR3 3.0))</pre>
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<p>In the following example, a simple list is specified as a value
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in a mixed list. In this example, the MAX value on the ELEM statement is
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greater than 1; therefore, the element can be repeated up to the number of
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times specified on the MAX parameter.</p>
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<pre> PARM KWD(PARM2) TYPE(LIST2)
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LIST2: ELEM TYPE(*CHAR) LEN(10) MAX(5)
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ELEM TYPE(*DEC) LEN(3 0)</pre>
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<p>In this example, the first element can be specified up to five
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times, but the second element can be specified only once. When a value is
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entered for this parameter, it could appear as follows. </p>
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<pre>PARM2((NAME1 NAME2 NAME3) 123.0)</pre>
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<p>When lists within lists are passed to the command processing
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program, the format varies depending on whether you are using CL or HLL, or
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REXX.</p>
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</div>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="defdlclhll.htm">Use CL or HLL for lists within lists</a></strong><br />
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This describes the format in which elements in a list within a list are passed when a command is run using CL or a high-level language.</li>
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<li class="ulchildlink"><strong><a href="llrx.htm">Use REXX for lists within lists</a></strong><br />
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This describes the format in which elements in a list within a list are passed when a command is run using REXX.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dflst.htm" title="You can define a parameter to accept a list of values instead of just a single value.">Define lists for parameters</a></div>
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</div>
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</div>
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</body>
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</html>
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