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<div  id="repeat">
<span id="index-0"></span><span id="id1"></span>
<div >
<div >It is sometimes useful to repeat the same task or family several times,</div>
<div >looping on a specific value. You can do that by defining a <a  href="/wiki/display/ECFLOW/Glossary#term-repeat"><em >repeat</em></a> attribute.</div>
<div >There are three kinds of data you can loop on:</div>
</div>
<blockquote>
<div><ul >
<li>strings</li>
<li>integers</li>
<li>dates</li>
</ul>
</div></blockquote>
<div >
<div >Integers and dates are specified as a range, with an optional increment (the default is one).</div>
<div >Let us modify the <a  href="/wiki/display/ECFLOW/Glossary#term-suite-definition"><em >suite definition</em></a> file again</div>
</div>
<div ><pre># Definition of the suite test.
suite test
 edit ECF_INCLUDE "$HOME/course"
 edit ECF_HOME    "$HOME/course"
 family f1
     edit SLEEP 20
     task t1
         meter progress 1 100 90
     task t2
         trigger t1 eq complete
         event a
         event b
     task t3
         trigger t2:a
     task t4
         trigger t2 eq complete
         complete t2:b
     task t5
         trigger t1:progress ge 30
     task t6
         trigger t1:progress ge 60
     task t7
         trigger t1:progress ge 90
 endfamily
 family f2
     edit SLEEP 20
     task t1
         time 00:30 23:30 00:30
     task t2
         day  sunday
     task t3
         date 01.*.*
         time 12:00
     task t4
         time +00:02
     task t5
         time 00:02
 endfamily
 family f3
     task t1
         label info ""
 endfamily
 family f4
     edit SLEEP 2
     repeat string NAME a b c d e f
     family f5
         repeat integer VALUE 1 10
         task t1
             repeat date DATE 19991230 20000105
             label info ""
     endfamily
 endfamily
endsuite</pre>
</div>
<p>In python this would be:</p>
<div ><div ><pre><span >#!/usr/bin/env python2.5</span>
<span >import</span> <span >os</span>
<span >import</span> <span >ecflow</span>  
    
<span >def</span> <span >list_to_str_vec</span><span >(</span> <span >theList</span> <span >):</span>
    <span >&quot;&quot;&quot;Converts a python list to a C++ StrVec&quot;&quot;&quot;</span>
    <span >strvec</span> <span >=</span> <span >ecflow</span><span >.</span><span >StrVec</span><span >()</span>
    <span >for</span> <span >theStr</span> <span >in</span> <span >theList</span><span >:</span>
        <span >ecflow</span><span >.</span><span >StrVec</span><span >.</span><span >append</span><span >(</span><span >strvec</span><span >,</span><span >theStr</span><span >)</span>
    <span >return</span> <span >strvec</span><span >;</span> 

<span >def</span> <span >create_family_f4</span><span >():</span>
    <span >f4</span> <span >=</span> <span >ecflow</span><span >.</span><span >Family</span><span >(</span><span >&quot;f4&quot;</span><span >)</span>
    <span >f4</span><span >.</span><span >add_variable</span><span >(</span><span >&quot;SLEEP&quot;</span><span >,</span><span >2</span><span >)</span>
    <span >f4</span><span >.</span><span >add_repeat</span><span >(</span> <span >ecflow</span><span >.</span><span >RepeatString</span><span >(</span><span >&quot;NAME&quot;</span><span >,</span> <span >list_to_str_vec</span><span >(</span> <span >[</span><span >&quot;a&quot;</span><span >,</span> <span >&quot;b&quot;</span><span >,</span> <span >&quot;c&quot;</span><span >,</span> <span >&quot;d&quot;</span><span >,</span> <span >&quot;e&quot;</span><span >,</span> <span >&quot;f&quot;</span> <span >]</span> <span >))</span> <span >)</span>
   
    <span >f5</span> <span >=</span> <span >f4</span><span >.</span><span >add_family</span><span >(</span><span >&quot;f5&quot;</span><span >)</span>
    <span >f5</span><span >.</span><span >add_repeat</span><span >(</span> <span >ecflow</span><span >.</span><span >RepeatInteger</span><span >(</span><span >&quot;VALUE&quot;</span><span >,</span><span >1</span><span >,</span><span >10</span><span >)</span> <span >)</span>
   
    <span >t1</span> <span >=</span> <span >f5</span><span >.</span><span >add_task</span><span >(</span><span >&quot;t1&quot;</span><span >)</span>
    <span >t1</span><span >.</span><span >add_repeat</span><span >(</span> <span >ecflow</span><span >.</span><span >RepeatDate</span><span >(</span><span >&quot;DATE&quot;</span><span >,</span><span >20101230</span><span >,</span><span >20110105</span><span >)</span> <span >)</span>
    <span >t1</span><span >.</span><span >add_label</span><span >(</span><span >&quot;info&quot;</span><span >,</span><span >&quot;&quot;</span><span >)</span>
    <span >return</span> <span >f4</span>
    
<span >defs</span> <span >=</span> <span >ecflow</span><span >.</span><span >Defs</span><span >()</span>
<span >suite</span> <span >=</span> <span >defs</span><span >.</span><span >add_suite</span><span >(</span><span >&quot;test&quot;</span><span >)</span>
<span >suite</span><span >.</span><span >add_variable</span><span >(</span><span >&quot;ECF_INCLUDE&quot;</span><span >,</span><span >os</span><span >.</span><span >getenv</span><span >(</span><span >&quot;HOME&quot;</span><span >)</span> <span >+</span> <span >&quot;/course&quot;</span><span >)</span>
<span >suite</span><span >.</span><span >add_variable</span><span >(</span><span >&quot;ECF_HOME   &quot;</span><span >,</span><span >os</span><span >.</span><span >getenv</span><span >(</span><span >&quot;HOME&quot;</span><span >)</span> <span >+</span> <span >&quot;/course&quot;</span><span >)</span>

<span >suite</span><span >.</span><span >add_family</span><span >(</span> <span >create_family_f4</span><span >()</span> <span >)</span>
</pre></div>
</div>
<div >
<div >The name of the <a  href="/wiki/display/ECFLOW/Glossary#term-repeat"><em >repeat</em></a> defines an ECF <a  href="/wiki/display/ECFLOW/Glossary#term-variable"><em >variable</em></a>.</div>
<div >We can write a <a  href="/wiki/display/ECFLOW/Glossary#term-ecf-script"><em >ecf script</em></a> <strong>/test/f4/f5/t1.ecf</strong> to use these variables</div>
</div>
<div ><pre>%include &lt;head.h&gt;
ecflow_client --label=info "My name is %NAME%" "My value is %VALUE%" "My date is %DATE%"
sleep %SLEEP%
%include &lt;tail.h&gt;</pre>
</div>
<p>What to do:</p>
<ol >
<li>Type in the changes</li>
<li>Load and begin the <a  href="/wiki/display/ECFLOW/Glossary#term-suite"><em >suite</em></a></li>
<li>How many times will <strong>/test/f4/f5/t1</strong> run?</li>
<li>In <a  href="/wiki/display/ECFLOW/Glossary#term-ecflowview"><em >ecflowview</em></a>, try to modify the values of a <a  href="/wiki/display/ECFLOW/Glossary#term-repeat"><em >repeat</em></a></li>
</ol>
</div>