99 lines
6.7 KiB
HTML
99 lines
6.7 KiB
HTML
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="DC.Title" content="Use CL or HLL for mixed lists" />
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<meta name="abstract" content="This describes the format in which elements in a mixed list are passed when a command is run using CL or a high-level language." />
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<meta name="DC.subject" content="high-level language (HLL) program, mixed list, HLL (high-level language) program, using CL or HLL for, list, CL or HLL for mixed" />
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<title>Use CL or HLL for mixed lists</title>
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<body id="rbafnmst-gen53"><a name="rbafnmst-gen53"><!-- --></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">Use CL or HLL for mixed lists</h1>
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<div><p>This describes the format in which elements in a mixed list are
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passed when a command is run using CL or a high-level language.</p>
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<div class="section"> <p>When a command is run using CL or HLL, the elements in a mixed
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list are passed to the command processing program in the following format:</p>
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<br /><img src="rbafn513.gif" alt="When a command is run using CL or HLL, the elements in a mixed list are passed to the command processing program in the this format." /><br /><p>The number of values in the
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mixed list is passed as a binary value of length 2. This value always indicates
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how many values have been defined for the mixed list, not how many were actually
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entered on the command. This value may be 1 if the SNGVAL parameter is entered
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or is passed as the default value. If the user does not enter a value for
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an element, a default value is passed. The elements are passed by their types
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just as single parameter values are passed. For example, if, in the previous
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example the user enters a comparison value of QCMDI for the CMPVAL parameter,
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but does not enter a value for the starting position, whose default value
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is 1, the following is passed.</p>
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<br /><img src="rbafn514.gif" alt="Example of what is passed if, in the previous example the user enters a comparison value of QCMDI for the CMPVAL parameter, but does not enter a value for the starting position, whose default value is 1." /><br /><p>The data QCMDI is passed
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as an 80-character value that is left-adjusted and padded with blanks. The
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number of elements is sent as a binary value of length 2.</p>
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<p>When the display
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station user enters a single value or when a single value is the default for
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a mixed list, the value is passed as the first element in the list. For example,
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if the display station user enters *ANY as a single value for the parameter,
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the following is passed.</p>
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<br /><img src="rbafn515.gif" alt="The following is passed if the display station user enters *ANY as a single value for the parameter." /><br /><p>*ANY is passed as an 80-character
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value that is left-adjusted and padded with blanks.</p>
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<p>Mixed lists can
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be processed in CL programs. Unlike simple lists, the binary value does not
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need to be tested to determine how many values are in the list because this
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value is always the same for a given mixed list unless the SNGVAL parameter
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was passed to the command processing program. In this case, the value is
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1. If the command is entered with a single value for the parameter, only
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that one value is passed. To process the mixed list in a CL procedure, you
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must use the substring built-in function.</p>
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<p>In one case,
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only a binary value of 0000 is passed as the number of values for a mixed
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list. If no default value is defined on the PARM statement for an optional
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parameter and the first value of the list is required (MIN(1)), then the parameter
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itself is not required; but if any element is specified the first element
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is required. In this case, if the command is entered without specifying a
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value for the parameter, the following is passed.<br /><img src="rbafn512.gif" alt="Example of what is passed if the command is entered without specifying a value for the parameter." /><br /></p>
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<p>An example of such a
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parameter is: </p>
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<pre> PARM KWD(KWD1) TYPE(E1) MIN(0)
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E1: ELEM TYPE(*CHAR) LEN(10) MIN(1)
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ELEM TYPE(*CHAR) LEN(2) MIN(0)</pre>
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<p>If this parameter were to be processed by a CL procedure, the
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parameter value could be received into a 14-character CL variable. The first
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2 characters could be compared to either of the following: </p>
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<ul><li>a 2-character variable initialized to hex 0000 using the %SUBSTRING function.</li>
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<li>a decimal 0 using the %BINARY built-in function.</li>
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</ul>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dmlst.htm" title="A mixed list accepts a set of separately defined values.">Define a mixed list</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="clpro.htm" title="This provides tasks and concepts specific to CL programming.">CL programming</a></div>
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</div>
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<div class="reltasks"><strong>Related tasks</strong><br />
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<div><a href="defpr.htm" title="To define a parameter, you must use the PARM statement.">Define 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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