OK you are really bending what you would use rules for, I really wouldn't recommend that. flattening the object model would allow you to write rules over it, but as it stands, its just going to be a bit difficult for you. 
<br><span class="q"><p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; catalogObject :
CatalogObject( )</span></font></p></span><p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></font><b><font color="#960000" face="Courier New" size="2">
<span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">eval</span></font></b><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">( </span></font><font color="black" face="Courier New" size="2">
<span style="font-size: 10pt; color: black;">catalogObject.getElementValue(</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">&quot;depth&quot;</span></font><font color="black" face="Courier New" size="2">
<span style="font-size: 10pt; color: black;">)</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> == </span></font><b><font color="#960000" face="Courier New" size="2">
<span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">null</span></font></b><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> || </span></font><font color="black" face="Courier New" size="2">
<span style="font-size: 10pt; color: black;">catalogObject.getElementValue(</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">&quot;depth&quot;</span></font><font color="black" face="Courier New" size="2">
<span style="font-size: 10pt; color: black;">)</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> == </span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">
&quot;&quot;</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> )</span></font></p><br><div><span class="gmail_quote">On 4/5/07, <b class="gmail_sendername"><a href="mailto:John.Tal@gxs.com">
John.Tal@gxs.com</a></b> &lt;<a href="mailto:John.Tal@gxs.com">John.Tal@gxs.com</a>&gt; wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">









<div link="blue" vlink="purple" lang="EN-US">

<div>

<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Ok,&nbsp; Thanks for the help on the drl
syntax.</span></font></p>

<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">&nbsp;</span></font></p>

<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">So this works.</span></font></p><span class="q">

<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">&nbsp;</span></font></p>

<p style=""><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">rule</span></font></b><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
 </span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">&quot;UCCnet_DVE_Depth_All&quot;</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span>
</font></p>

<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></font><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">
when</span></font></b><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>

<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; catalogObject :
CatalogObject( )</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>

<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></font><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">
eval</span></font></b><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">( catalogObject.getElementValue(</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">
&quot;depth&quot;</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">) == </span></font><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">
null</span></font></b><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> || catalogObject.getElementValue(</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">
&quot;depth&quot;</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">) == </span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">
&quot;&quot;</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> )</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p></span>
<span class="q">

<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></font><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">
then</span></font></b><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>

<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; logWriter.logDebug(</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">
&quot;Package Depth is Blank&quot;</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">);</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;">
</span></font></p></span>

<p style=""><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">end</span></font></b><font face="Courier New" size="2"><span style="font-size: 10pt;">
</span></font></p>

<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">&nbsp;</span></font></p>

<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">&nbsp;</span></font></p>

<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">But how do I get the drl parser to accept
something like this:</span></font></p><span class="q">

<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">&nbsp;</span></font></p>

<p style=""><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">rule</span></font></b><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">
 </span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">&quot;UCCnet_DVE_Depth_All&quot;</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span>
</font></p>

<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></font><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">
when</span></font></b><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>

<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; catalogObject :
CatalogObject( )</span></font></p></span>

<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; String s = catalogObject.getElementValue(</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">
&quot;depth&quot;</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">);</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>


<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></font><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">
eval</span></font></b><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">( s == </span></font><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">
null</span></font></b><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> || s == </span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">
&quot;&quot;</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;"> )</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p><span class="q">


<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></font><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">
then</span></font></b><font face="Courier New" size="2"><span style="font-size: 10pt;"></span></font></p>

<p style=""><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; logWriter.logDebug(</span></font><font color="green" face="Courier New" size="2"><span style="font-size: 10pt; color: green;">
&quot;Package Depth is Blank&quot;</span></font><font color="black" face="Courier New" size="2"><span style="font-size: 10pt; color: black;">);</span></font><font face="Courier New" size="2"><span style="font-size: 10pt;">
</span></font></p></span>

<p style=""><b><font color="#960000" face="Courier New" size="2"><span style="font-size: 10pt; color: rgb(150, 0, 0); font-weight: bold;">end</span></font></b><font face="Courier New" size="2"><span style="font-size: 10pt;">
</span></font></p>

<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">&nbsp;</span></font></p>

<p><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">I am getting an Unexpected token 's'
&nbsp;InvalidRulePackage </span></font></p>

</div>

</div>


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