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Subject: Multiple Element Values From: Rhonda Fischer <rhonda@xxxxxxxxxxxxxx> Date: Wed, 19 Apr 2000 12:19:00 +0000 |
Dear Michael, Thank you very much for your response to my query, I really appreciated your assistance. I have since spent quite some time reading so that I might have a broader understanding of the possible solutions and hence select the best outcome. I have some further queries that I was hoping you might be able to help me with. My attempt at filling in the Gaps: ------------------------ 1: <xsl:template name="process-items"> 2: <xsl:param name="fragmentQtyPrice" 3: select="product/ref[@Qty and @Price]"/> 4: <xsl:if test=fragmentQtyPrice/> 5: <xsl:variable name="first" select="fragmentQtyPrice[1]"/> 6: <xsl:variable name="total-of-rest" 7: select="<xsl:call-template name="process-items"/> 8: <xsl:with-param name="fragmentQtyPrice 9: select="fragmentQtyPrice[position()!=1]"/> 10: </xsl:variable> 11: <xsl:value-of select="$first/Qty * $first/Price + $total-of-rest"/> 12: </xsl:template> Subsequent Questions: ----------------- Line 2 and 3: Can I create an item list of qty's and price's using this line of code. I am concerned with the use of 'and' ? Line 5: I assume this is considering the first occurance of qty and price (or rather the top appearing values if liken to a stack-loosing each first instance of qty and price per loop) Line 6: Creates a variable total-of-rest which has a recursive nested xsl:call-template in it's select, (hope I can do this?) Here I have a question: when passing a value back into a function it's my understanding the param should be incrementing in value so that the recursive call will loop through the list of qty and prices. Is this happening here - how does position()!=1 achieve this??? Line 6: I am not sure if I have correctly setup the param to pass into the recursive function call? Line 11 I am not sure at which point I can save the individual values calculated for qty*price into a variable so that I may finally display this in a html table. Perhaps I have misunderstood how to extract the values already put into the result table to finally print out each cost and a total cost? Reading Explorations ---------------- I have been excited to read your documentation on SAXON and have found some bits of code that seem of interest to me in solving my table of values. I wondered if I might be able to use of some of this code to: * Return a node-set to pass to the function. However: is a node-set simply just a match pattern on the result tree? As it seems strange that xsl would provide the sum function but not a means of passing in an arguement of the right type ie. node-set? <xsl:variable name="fragment">value</xsl:variable> .... <xsl:apply-templates select="saxon:node-set($fragment)" mode="postprocess" xmlns:saxon="http://icl.com/saxon"/> * Make use of maths functions in java not available in xsl <xsl:value-of select="math:sqrt($arg)" xmlns:math="http://java.sun.com/java.lang.Math"/> By the way it seems that sun have moved this library, I was not able to find this http resource site? * I also read about NodeSet Expressions: nodeset-expression1[predicate] and ArithmeticExpression(Expression p1, int op, Expression p2) and wondered if this might come be part of a successful outcome but will give this more thought later. Again thank you kindly for helping me. Best Regards Rhonda XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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