IF command - Revision history

ELowell at 16:11, 22 March 2017

2017-03-22T16:11:26Z

← Older revision		Revision as of 16:11, 22 March 2017
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	</ul>		</ul>

	[[Category: ~~General user~~ commands]]		[[Category: User commands]]
	[[Category:Commands]]		[[Category:Commands]]

JAL at 21:08, 15 April 2014

2014-04-15T21:08:59Z

← Older revision		Revision as of 21:08, 15 April 2014
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	<dd>Executes a procedure if a condition is satisfied		<dd>Executes a procedure if a condition is satisfied
	</dl>		</dl>

	==Syntax==		==Syntax==
	<p class="syntax">IF <i>global-variable=value</i>, {<i>procnumber</i> \| <i>procname</i>}		<p class="syntax">IF <i>global-variable=value</i>, {<i>procnumber</i> \| <i>procname</i>}
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	<table>		<table>
	<tr>		<tr>
	<th>global-variable</th>		<th nowrap>global-variable</th>
	<td> ~~is the~~ name of the global variable whose value is to be tested.</td>		<td>The name of the global variable whose value is to be tested.</td>
	</tr>		</tr>

	<tr>		<tr>
	<th>value</th>		<th>value</th>
	<td> ~~is the~~ value for which the global variable is to be tested. If this value matches the value of the global variable, the specified procedure is executed (INCLUDEd).</td>		<td>The value for which the global variable is to be tested. If this value matches the value of the global variable, the specified procedure is executed (INCLUDEd).</td>
	</tr>		</tr>

	<tr>		<tr>
	<th>procnumber</th>		<th>procnumber</th>
	<td> ~~is the~~ number of an existing temporary procedure. It can be zero or a negative number.</td>		<td>The number of an existing temporary procedure. It can be zero or a negative number.</td>
	</tr>		</tr>

	<tr>		<tr>
	<th>procname</th>		<th>procname</th>
	<td> ~~is the~~ name of an existing procedure.</td>		<td>The name of an existing procedure.</td>
	</tr>		</tr>

	<tr>		<tr>
	<th>delimiter</th>		<th>delimiter</th>
	<td> ~~is one~~ of the following characters:		<td>One of the following characters:
	<table>
			<table>
	<tr> <th>Character name </th> <th>Keyboard display</th> </tr>		<tr class="head"> <th>Character name </th> <th>Keyboard display</th> </tr>

	<tr> <th><var>Blank</var></th> <td></td> </tr>		<tr> <th><var>Blank</var></th> <td></td> </tr>

	<tr> <th><var>Comma</var></th> <td>( , ) </td> </tr>		<tr> <th><var>Comma</var></th> <td>( <b>,</b> ) </td> </tr>

	<tr> <th><var>Equal sign </var></th> <td>( = ) </td> </tr>		<tr> <th><var>Equal sign </var></th> <td>( <b>=</b> ) </td> </tr>

	<tr> <th><var>Left parenthesis </var></th> <td>( ( )</td> </tr>		<tr> <th><var>Left parenthesis </var></th> <td>( <b>(</b> )</td> </tr>

	<tr> <th><var>Right parenthesis </var></th> <td>( ) )</td> </tr>		<tr> <th><var>Right parenthesis </var></th> <td>( <b>)</b> )</td> </tr>

	</table>		</table>
	</td>		</td>
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	<tr>		<tr>
	<th>response</th>		<th>response</th>
	<td> ~~is a~~ dummy string or $READ function response. Any number of responses can be specified on a command line, separated by delimiters.</td>		<td>A dummy string or $READ function response. Any number of responses can be specified on a command line, separated by delimiters.</td>
	</tr>		</tr>

	</table>		</table>

	===Syntax notes===		===Syntax notes===
	If dummy string and $READ responses are specified on the same command line, dummy string responses must appear first.		If dummy string and $READ responses are specified on the same command line, dummy string responses must appear first.

	==Example==		==Example==
	<p class="code">PROCEDURE REPORT		<p class="code">PROCEDURE REPORT
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	END PROCEDURE		END PROCEDURE
	</p>		</p>

	==Usage notes==		==Usage notes==
	<p>The IF command conditionally executes a procedure or a recent ~~User Language~~ request. The INCLUDE command unconditionally executes a procedure. (The presentation of the INCLUDE command describes procedure execution.) If the value specified in the command matches the value of the specified global variable, <var class="product">Model 204</var> executes the procedure. </p>		<ul>
	<p>As dummy strings and $READ functions are encountered in the procedure, responses are retrieved, one by one, from the responses specified in the IF command, as shown in the example. </p>		<li>The <var>IF</var> command conditionally executes a procedure or a recent SOUL request. The <var>INCLUDE</var> command unconditionally executes a procedure. (The presentation of the <var>INCLUDE</var> command describes procedure execution.) If the value specified in the command matches the value of the specified global variable, <var class="product">Model 204</var> executes the procedure. </li>
	~~<p>The <var class="book">Model 204 User Language Manual</var> discusses~~ dummy strings and the $READ function in ~~detail~~.</p>
			<li>As dummy strings and $READ functions are encountered in the procedure, responses are retrieved, one by one, from the responses specified in the <var>IF</var> command, as shown in the example.
			<p>
			For further discussion of dummy strings and the $READ function, see [[Procedures#Dummy strings in procedures\|Dummy strings in procedures]].</p></li>
			</ul>

	[[Category: General user commands]]		[[Category: General user commands]]
	[[Category:Commands]]		[[Category:Commands]]

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2013-04-20T01:00:12Z

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	<p>The IF command conditionally executes a procedure or a recent User Language request. The INCLUDE command unconditionally executes a procedure. (The presentation of the INCLUDE command describes procedure execution.) If the value specified in the command matches the value of the specified global variable, <var class="product">Model 204</var> executes the procedure. </p>		<p>The IF command conditionally executes a procedure or a recent User Language request. The INCLUDE command unconditionally executes a procedure. (The presentation of the INCLUDE command describes procedure execution.) If the value specified in the command matches the value of the specified global variable, <var class="product">Model 204</var> executes the procedure. </p>
	<p>As dummy strings and $READ functions are encountered in the procedure, responses are retrieved, one by one, from the responses specified in the IF command, as shown in the example. </p>		<p>As dummy strings and $READ functions are encountered in the procedure, responses are retrieved, one by one, from the responses specified in the IF command, as shown in the example. </p>
	<p>The <var>Model 204 User Language Manual</var> discusses dummy strings and the $READ function in detail.</p>		<p>The <var class="book">Model 204 User Language Manual</var> discusses dummy strings and the $READ function in detail.</p>
	[[Category: General user commands]]		[[Category: General user commands]]
	[[Category:Commands]]		[[Category:Commands]]

Alex: Automatically generated page update

2013-02-28T01:05:01Z

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==Summary==
<dl>
<dt>Privileges
<dd>Any user
<dt>Function
<dd>Executes a procedure if a condition is satisfied
</dl>
==Syntax==
IF global-variable=value, {procnumber | procname}
[delimiter response [delimiter response...]]


Where:
<table>
<tr>
<th>global-variable</th>
<td> is the name of the global variable whose value is to be tested.</td>
</tr>

<tr>
<th>value</th>
<td> is the value for which the global variable is to be tested. If this value matches the value of the global variable, the specified procedure is executed (INCLUDEd).</td>
</tr>

<tr>
<th>procnumber</th>
<td> is the number of an existing temporary procedure. It can be zero or a negative number.</td>
</tr>

<tr>
<th>procname</th>
<td> is the name of an existing procedure.</td>
</tr>

<tr>
<th>delimiter</th>
<td> is one of the following characters:
<table>

<tr> <th>Character name </th> <th>Keyboard display</th> </tr>

<tr> <th><var>Blank</var></th> <td></td> </tr>

<tr> <th><var>Comma</var></th> <td>( , ) </td> </tr>

<tr> <th><var>Equal sign </var></th> <td>( = ) </td> </tr>

<tr> <th><var>Left parenthesis </var></th> <td>( ( )</td> </tr>

<tr> <th><var>Right parenthesis </var></th> <td>( ) )</td> </tr>

</table>
</td>
</tr>

<tr>
<th>response</th>
<td> is a dummy string or $READ function response. Any number of responses can be specified on a command line, separated by delimiters.</td>
</tr>

</table>
===Syntax notes===
If dummy string and $READ responses are specified on the same command line, dummy string responses must appear first.
==Example==
PROCEDURE REPORT
BEGIN
.
.
.
END
IF REPORTNO = 1, REPA,YES,NO
IF REPORTNO = 2, REPB
IF REPORTNO = 3, REPC
END PROCEDURE

==Usage notes==
The IF command conditionally executes a procedure or a recent User Language request. The INCLUDE command unconditionally executes a procedure. (The presentation of the INCLUDE command describes procedure execution.) If the value specified in the command matches the value of the specified global variable, <var class="product">Model 204</var> executes the procedure. 
As dummy strings and $READ functions are encountered in the procedure, responses are retrieved, one by one, from the responses specified in the IF command, as shown in the example. 
The <var>Model 204 User Language Manual</var> discusses dummy strings and the $READ function in detail.
[[Category: General user commands]]
[[Category:Commands]]