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    1: <problem>
    2:   <outtext>
    3:     In the fllowing questions remember that a tomato is a fruit.
    4: 
    5:     I have presented a couple of ideas on how this might be done.
    6:     
    7:     I am presuming a random function that returns an integer between the 
    8:     two arguments given.
    9:   </outtext>
   10:   <part>
   11:     <outtext>
   12:       Please select the fruit from the list below.
   13:       
   14:       This one attempts to be very simple I think to edit and recreate
   15:       from the editor.
   16:     </outtext>
   17:     <script>
   18:       $numoftrueleafs=2;
   19:       $numoffalseleafs=4;
   20:       $numofpresentedleafs=4;
   21:       $whichtrue=random(1,$numoftrueleafs);
   22:       @whichfalse=pick(3,1,$numoffalseleafs); #pick(x,y,z), Picks x 
   23:                                               #inetgers between y and z
   24:     </script>
   25:     <randomlist> 
   26:       <comment>
   27: 	maybe <block order="random"></block> is better? 
   28: 	The idea is that the following top level blocks get parsed in
   29: 	random order.
   30:       </comment>
   31:       <radio value=false condition="&ismemberoflist(1,@whichfalse)">
   32: 	Trucks
   33:       </radio>
   34:       <radio value=false condition="&ismemberoflist(2,@whichfalse)">
   35: 	Cars
   36:       </radio>
   37:       <radio value=false condition="&ismemberoflist(3,@whichfalse)">
   38: 	Guy Albertelli
   39:       </radio>
   40:       <radio value=false condition="&ismemberoflist(4,@whichfalse)">
   41: 	Computers
   42:       </radio>
   43:       <radio value=true condition="1==$whichtrue">Oranges</radio>
   44:       <radio value=true condition="2==$whichtrue">Tomatoes</radio>
   45:     </randomlist>
   46:   </part>
   47:   <part>
   48:     <outtext>
   49:       Please select the fruit from the list below.
   50:       
   51:       This one attempts to be easier to type in by hand, but more
   52:       troublesome to automate editing for. Also lets the parser been
   53:       even less smart.
   54:     </outtext>
   55:     <script>
   56:       $numoftrueleafs=2;
   57:       @trueleafs=('Oranges','Tomatoes');
   58:       $numoffalseleafs=4;
   59:       @falseleafs=('Trucks','Cars','Guy Albertelli','Computers');
   60:       $numpresentedleafs=4;
   61:       $whichtrue=random(1,$numoftrueleafs);
   62:       @whichfalse=pick($numpresentedleafs,@falseleafs); #Picks 3 items from the list
   63:       $randseed=random(1,1000);
   64:       @leafs=&map(randseed,$numpresentedleafs,(@trueleafs[$whichtrue],@whichfalse));
   65:       @value=&map(randseed,$numpresentedleafs,('true','false','false','false'));
   66:     </script>
   67:     <radio value="@value[1]"> @leafs[1] </radio> 
   68:     <radio value="@value[2]"> @leafs[2] </radio>
   69:     <radio value="@value[3]"> @leafs[3] </radio>
   70:     <radio value="@value[4]"> @leafs[4] </radio>
   71:     <comment> 
   72:       Can tags inside a <script></script> be parsed? if so stick the
   73:       radio button generation as a loop inside the script block.
   74:     </comment>
   75:   </part>
   76:   <part>
   77:     <outtext> 
   78:       Select the word from the drop down box that best matches.
   79:     </outtext>
   80:     <script>
   81:       @options=('Fruit','Vehicle','Person','Place');
   82:     </script>
   83:     <randomlist>
   84:       <comment>
   85: 	To have different options appear for different students.
   86: 
   87: 	You could add conditions similar to the way the first radio
   88: 	button one works.
   89: 	
   90: 	Or you could do somthing along the lines of the second one and
   91: 	do all of the choosing in the script, setting a list of values
   92: 	and the associated text to that value.
   93: 
   94: 	I could whip a couple examples of this up, but I think you
   95: 	could too.
   96:       </comment>
   97:       <outtext>
   98: 	Tomatoes are <list value="1" possible="@options"></list>
   99:       </outtext>
  100:       <outtext>
  101: 	<list value="1" possible="@options"></list> can be found
  102: 	growing on trees.
  103:       </outtext>
  104:       <outtext> 
  105: 	Istanbul is a <list value="4" possible="@options"></list> 
  106:       </outtext>
  107:     </randomlist>
  108:   </part>
  109: </problem>