Re: [xsl] Keeping a running total? (Redo)

[didoss@xxxxxxxxxxx]

Cool.
 -------------- Original message ----------------------
From: "Dimitre Novatchev" <dnovatchev@xxxxxxxxx>
> Here's one possible solution:
> 
> This transformation:
> 
> <xsl:stylesheet version="2.0"
>  xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
>  xmlns:xs="http://www.w3.org/2001/XMLSchema";
>  xmlns:f="http://fxsl.sf.net/";
>  exclude-result-prefixes="f xs"
> >
>  <xsl:import href="../f/func-scanl.xsl"/>
>  <xsl:import href="../f/func-Operators.xsl"/>
>  <xsl:import href="../f/func-map.xsl"/>
> 
>  <!-- To be run against: ..\data\testFunc-Scanl2.xml -->
> 
>  <xsl:output omit-xml-declaration="yes" indent="yes"/>
> 
>  <xsl:param name="prunQuatas" as="element()+">
>   <q name="widgets" min="1" max="8"/>
>   <q name="gadgets" min="9" max="13"/>
>   <q name="excess" min="14" max="999999999"/>
>  </xsl:param>
> 
>  <xsl:template match="/">
>     <xsl:variable name="vFactories" as="element()+"
>      select="/*/*"/>
> 
>     <xsl:variable name="vrunTotals" as="xs:double+"
>      select="f:scanl(f:add(), 0, $vFactories/@capacity)"/>
> 
>     <xsl:variable name="vMinInSeq" as="xs:double+" select=
>      "f:map(f:add(1), $vrunTotals)"
>      />
> 
>     <xsl:variable name="vMaxInSeq" as="xs:double+" select=
>      "remove($vrunTotals,1), 999999999"
>      />
> 
>     <xsl:sequence select=
>      "for $ind in 1 to count($vFactories)
>            return
>             f:breakDownElement($ind,$vFactories,
>                                $vMinInSeq, $vMaxInSeq,
>                                $prunQuatas
>                                )
>      "
>     />
>  </xsl:template>
> 
>  <xsl:function name="f:breakDownElement" as="element()">
>    <xsl:param name="pInd" as="xs:integer"/>
>    <xsl:param name="pFactories" as="element()+"/>
>    <xsl:param name="pMinInSeq" as="xs:double+"/>
>    <xsl:param name="pMaxInSeq" as="xs:double+"/>
>    <xsl:param name="prunQuatas" as="element()+"/>
> 
>    <xsl:variable name="pFctry" select="$pFactories[$pInd]"/>
> 
>    <xsl:element name="{name($pFctry)}">
>      <xsl:copy-of select="$pFctry/@*"/>
>      <xsl:sequence select=
>      "f:breakDown($pInd, $pMinInSeq, $pMaxInSeq, $prunQuatas)"/>
>    </xsl:element>
>  </xsl:function>
> 
>  <xsl:function name="f:breakDown">
>    <xsl:param name="pInd" as="xs:integer"/>
>    <xsl:param name="pMinInSeq" as="xs:double+"/>
>    <xsl:param name="pMaxInSeq" as="xs:double+"/>
>    <xsl:param name="prunQuatas" as="element()+"/>
> 
>    <xsl:variable name="vMin" as="xs:double"
>      select="$pMinInSeq[$pInd]"/>
> 
>    <xsl:variable name="vMax" as="xs:double"
>      select="$pMaxInSeq[$pInd]"/>
> 
>    <xsl:for-each select=
>       "$prunQuatas[not($vMin > @max or @min > $vMax)]">
> 
>       <xsl:attribute name="{@name}" select=
>        "min(($vMax, @max)) - max(($vMin, @min)) +1"/>
>    </xsl:for-each>
>  </xsl:function>
> </xsl:stylesheet>
> 
> 
> when applied on this xml document
> 
> <xml>
>  <factory x="A" capacity = "3" />
>  <factory x="B" capacity= "6" />
>  <factory x="C" capacity = "3" />
>  <factory x="D" capacity = "2" />
>  <factory x="E" capacity = "2" />
>  ...etc...
> </xml>
> 
> produces the wanted result:
> 
> <factory x="A" capacity="3" widgets="3"/>
> <factory x="B" capacity="6" widgets="5" gadgets="1"/>
> <factory x="C" capacity="3" gadgets="3"/>
> <factory x="D" capacity="2" gadgets="1" excess="1"/>
> <factory x="E" capacity="2" excess="2"/>
> 
> -- 
> Cheers,
> Dimitre Novatchev
> ---------------------------------------
> Truly great madness cannot be achieved without significant intelligence.
> 
> 
> On 7/11/06, didoss@xxxxxxxxxxx <didoss@xxxxxxxxxxx> wrote:
> > I would think that the intended output would be:
> >
> > Factory A produces 3 widgets;
> > Factory B produces 5 widgets and 1 gadget;
> > Factory C produces 3 gadgets;
> > Factory D produces 1 gadget and 1 excess product - whatever that is;
> > Factory E and beyond produce excess products.
> >
> > So, you are really trying to keep track of 2 changing numbers,...the number of 
> current product still required, as well as the capacity of the factory.  When 
> the number of the current product required gets to zero, you change products - 
> gotta figure out how to prioritize those.  When the capacity of the current 
> factory gets to zero (has been fully allocated), you change factories - which 
> would be controlled by the order of the input xml, I assume.
> >
> > So, is it better to do this incrementally - subtract one from required and one 
> from remaining capacity,...or to do bulk comparisons - I need to build 8, but 
> can only build 3, so give all three to Factory 1, and subtract 3 from 
> WidgetRequirement, then I still need to build 5, but Factory B can build 6, so 
> subtract all 5 from the WidgetRequirement and the CurrentCapacity and then 
> figure out what to do with the remaining CurrentCapacity for Factory B.
> >
> >
> > Dianne
> >
> >  -------------- Original message ----------------------
> > From: "Dimitre Novatchev" <dnovatchev@xxxxxxxxx>
> > > The presented source xml file is not too representative because the
> > > total capacity of the first two factories is exactly the widget quota.
> > >
> > > What should be the output in case the capacity for factory B was 6?
> > >
> > >
> > > On 7/11/06, Steve <subsume@xxxxxxxxx> wrote:
> > > > Previous thread has degenerated into confusion. Let's try again.
> > > >
> > > > ----- Source XML
> > > > <xml>
> > > >  <factory x="A" capacity = "3" />
> > > >  <factory x="B" capacity= "5" />
> > > >   <factory x="C" capacity = "3" />
> > > >   <factory x="D" capacity = "2" />
> > > >   <factory x="E" capacity = "2" />
> > > >   ...etc...
> > > > </xml>
> > > >
> > > > $Widget_quota = "8"
> > > > $Gadget_quota = "5"
> > > >
> > > > ----- Goal: an output table like below.
> > > >
> > > > Factory    |   Widgets  |  Gadgets    |      Excess
> > > >
> > > >     A        |   3
> > > >     B        |   5
> > > > <!--          *Click. Widget Quota has been reached. Switch to gadgets* 
> -->
> > > >     C        |                       3
> > > >     D        |                       2
> > > >  <!--          *Click. Omg. Gadget Quota has been reached. Switch to 
> Excess*
> > > -->
> > > >     E         |                                             etc.
> > > >     F         |                                             etc.
> > > >     G         |                                             etc.
> > > >     H         |                                             etc.
> > > >
> > > > ----
> > > > Howto?
> > > >
> > > > M.K. Suggested
> > > > http://www.biglist.com/lists/xsl-list/archives/200607/msg00191.html
> > > > but my question (Howto?) remains.
> > > >
> > > > Thanks,
> > > >
> > > > -Steve
> > > >
> > > >
> > >
> > >
> > > --
> > > Cheers,
> > > Dimitre Novatchev
> > > ---------------------------------------
> > > Truly great madness cannot be achieved without significant intelligence.