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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Using variables in extension elements
 <apply>
<eq/>
<apply>
<csymbol type="vector">C</csymbol>
<ci >t</ci>
</apply>
<apply>
<divide/>
<apply>
<sum />
<bvar>
<ci type="integer">i</ci>
</bvar>
<lowlimit>
<cn>0</cn>
</lowlimit>
<uplimit>
<ci type="integer">n</ci>
</uplimit>
<apply>
<times/>
<apply>
<selector/>
<ci>w</ci>
<ci>i</ci>
</apply>
<apply>
<selector/>
<ci type="vector">d</ci>
<ci>i</ci>
</apply>
<apply>
<csymbol>N</csymbol>
<ci type="integer">i</ci>
<ci type="integer">p</ci>
<apply>
<selector/>
<ci>knot</ci>
<ci type="integer">i</ci>
</apply>
<ci>t</ci>
</apply>
</apply>
</apply>
<apply>
<sum />
<bvar>
<ci type="integer">i</ci>
</bvar>
<lowlimit>
<cn>0</cn>
</lowlimit>
<uplimit>
<ci>n</ci>
</uplimit>
<apply>
<times/>
<apply>
<selector/>
<ci>w</ci>
<ci>i</ci>
</apply>
<apply>
<csymbol>N</csymbol>
<ci type="integer">i</ci>
<ci>p</ci>
<apply>
<selector/>
<ci>knot</ci>
<ci type="integer">i</ci>
</apply>
<ci>t</ci>
</apply>
</apply>
</apply>
</apply>
</apply>to compilable and runnable at runtime Java code: public javax.vecmath.GVector C(double t) { javax.vecmath.GVector C=null; C=divide((new com.pombi.mathml.lang.OperatorAdapter(){ public javax.vecmath.GVector vectorSum(double t){ javax.vecmath.GVector sum=new javax.vecmath.GVector(3); for(int i=0;i<=n;i++) { sum.add(times(new Object[]{w[(int)i],d[(int)i],N(i, p, knot, t)})); } return sum; }}).vectorSum(t),(new com.pombi.mathml.lang.OperatorAdapter(){ public double sum(double t){ double sum=0.0; for(int i=0;i<n;i++) { sum+=((w[(int)i]*N(i, p, knot, t))); } return sum; }}).sum(t)); return C; } Isn't that sweet?! I recommend anybody out there to go to Saxon (8.2) and work with xslt 2.0 and xpath 2.0. Whole new world instead of trying to write extensions on other processors! Where tunneling parameters came in incredibly handy is the reuse of the parameter list and arguments from the math:csymbol definition to the inner class built for the math:sum element. double t from C(double t) passed to double sum(double t) and then the arguments can go to the inner class all nice and neat! -Roger P.S. Thanks Michael Kay! JBryant@xxxxxxxxx wrote: Curiousity question: is anyone extending toward xslt 2.0 and xpath 2.0? 
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