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										 |  |  | <sect1 id="language.function.counter"> | 
					
						
							|  |  |  |  <title>counter</title> | 
					
						
							|  |  |  |  <informaltable frame="all"> | 
					
						
							|  |  |  |   <tgroup cols="5"> | 
					
						
							|  |  |  |    <colspec colname="param" align="center" /> | 
					
						
							|  |  |  |    <colspec colname="type" align="center" /> | 
					
						
							|  |  |  |    <colspec colname="required" align="center" /> | 
					
						
							|  |  |  |    <colspec colname="default" align="center" /> | 
					
						
							|  |  |  |    <colspec colname="desc" /> | 
					
						
							|  |  |  |    <thead> | 
					
						
							|  |  |  |     <row> | 
					
						
							|  |  |  |      <entry>Attribute Name</entry> | 
					
						
							|  |  |  |      <entry>Type</entry> | 
					
						
							|  |  |  |      <entry>Required</entry> | 
					
						
							|  |  |  |      <entry>Default</entry> | 
					
						
							|  |  |  |      <entry>Description</entry> | 
					
						
							|  |  |  |     </row> | 
					
						
							|  |  |  |    </thead> | 
					
						
							|  |  |  |    <tbody> | 
					
						
							|  |  |  |     <row> | 
					
						
							|  |  |  |      <entry>name</entry> | 
					
						
							|  |  |  |      <entry>string</entry> | 
					
						
							|  |  |  |      <entry>No</entry> | 
					
						
							|  |  |  |      <entry><emphasis>default</emphasis></entry> | 
					
						
							|  |  |  |      <entry>The name of the counter</entry> | 
					
						
							|  |  |  |     </row> | 
					
						
							|  |  |  |     <row> | 
					
						
							|  |  |  |      <entry>start</entry> | 
					
						
							|  |  |  |      <entry>number</entry> | 
					
						
							|  |  |  |      <entry>No</entry> | 
					
						
							|  |  |  |      <entry><emphasis>1</emphasis></entry> | 
					
						
							|  |  |  |      <entry>The initial number to start counting from</entry> | 
					
						
							|  |  |  |     </row> | 
					
						
							|  |  |  |     <row> | 
					
						
							|  |  |  |      <entry>skip</entry> | 
					
						
							|  |  |  |      <entry>number</entry> | 
					
						
							|  |  |  |      <entry>No</entry> | 
					
						
							|  |  |  |      <entry><emphasis>1</emphasis></entry> | 
					
						
							|  |  |  |      <entry>The interval to count by</entry> | 
					
						
							|  |  |  |     </row> | 
					
						
							|  |  |  |     <row> | 
					
						
							|  |  |  |      <entry>direction</entry> | 
					
						
							|  |  |  |      <entry>string</entry> | 
					
						
							|  |  |  |      <entry>No</entry> | 
					
						
							|  |  |  |      <entry><emphasis>up</emphasis></entry> | 
					
						
							|  |  |  |      <entry>the direction to count (up/down)</entry> | 
					
						
							|  |  |  |     </row> | 
					
						
							|  |  |  |     <row> | 
					
						
							|  |  |  |      <entry>print</entry> | 
					
						
							|  |  |  |      <entry>boolean</entry> | 
					
						
							|  |  |  |      <entry>No</entry> | 
					
						
							|  |  |  |      <entry><emphasis>true</emphasis></entry> | 
					
						
							|  |  |  |      <entry>Whether or not to print the value</entry> | 
					
						
							|  |  |  |     </row> | 
					
						
							|  |  |  |     <row> | 
					
						
							|  |  |  |      <entry>assign</entry> | 
					
						
							|  |  |  |      <entry>string</entry> | 
					
						
							|  |  |  |      <entry>No</entry> | 
					
						
							|  |  |  |      <entry><emphasis>n/a</emphasis></entry> | 
					
						
							|  |  |  |      <entry>the template variable the output will be assigned | 
					
						
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										 |  |  | 						to</entry> | 
					
						
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										 |  |  |     </row> | 
					
						
							|  |  |  |    </tbody> | 
					
						
							|  |  |  |   </tgroup> | 
					
						
							|  |  |  |  </informaltable> | 
					
						
							|  |  |  |  <para> | 
					
						
							|  |  |  |   counter is used to print out a count. counter will remember the | 
					
						
							|  |  |  |   count on each iteration. You can adjust the number, the interval | 
					
						
							|  |  |  |   and the direction of the count, as well as determine whether or not | 
					
						
							|  |  |  |   to print the value. You can run multiple counters concurrently by | 
					
						
							|  |  |  |   supplying a unique name for each one. If you do not supply a name, | 
					
						
							|  |  |  |   the name 'default' will be used. | 
					
						
							|  |  |  |  </para> | 
					
						
							|  |  |  |  <para> | 
					
						
							|  |  |  |   If you supply the special "assign" attribute, the output of the | 
					
						
							|  |  |  |   counter function will be assigned to this template variable instead of | 
					
						
							|  |  |  |   being output to the template. | 
					
						
							|  |  |  |  </para> | 
					
						
							|  |  |  |  <example> | 
					
						
							|  |  |  |   <title>counter</title> | 
					
						
							|  |  |  |   <programlisting> | 
					
						
							|  |  |  | <![CDATA[ | 
					
						
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										 |  |  | {* initialize the count *} | 
					
						
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										 |  |  | {counter start=0 skip=2}<br /> | 
					
						
							|  |  |  | {counter}<br /> | 
					
						
							|  |  |  | {counter}<br /> | 
					
						
							|  |  |  | {counter}<br /> | 
					
						
							|  |  |  | ]]> | 
					
						
							|  |  |  |   </programlisting> | 
					
						
							|  |  |  |   <para> | 
					
						
							|  |  |  |    this will output: | 
					
						
							|  |  |  |   </para> | 
					
						
							|  |  |  |   <screen> | 
					
						
							|  |  |  | <![CDATA[ | 
					
						
							|  |  |  | 0<br /> | 
					
						
							|  |  |  | 2<br /> | 
					
						
							|  |  |  | 4<br /> | 
					
						
							|  |  |  | 6<br /> | 
					
						
							|  |  |  | ]]> | 
					
						
							|  |  |  |   </screen> | 
					
						
							|  |  |  |  </example> | 
					
						
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										 |  |  | </sect1> | 
					
						
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