Xml XSLT中基于分组的计算问题

这里有一种情况，我需要从一个存在的节点获取一个值，并使用它来计算值

以下是我的XML：

<?xml version="1.0" encoding="utf-8"?>
<Document>
  <Header>
    <FirstName>Joel</FirstName>
    <LastName>Cabarles</LastName>
    <InvoiceDate>01-JAN-2020</InvoiceDate>
    <InvoiceNumber>123</InvoiceNumber>
    <Currency>PHP</Currency>
    <ExchangeRate>1.5</ExchangeRate>
  </Header>
  <InvoiceLines>
    <Lines>
      <LineNumber>1</LineNumber>
      <Description>Test1</Description>
      <Quantity>200</Quantity>
      <UnitPrice>500</UnitPrice>
      <Amounts>
        <Net>100000</Net>
        <VATRate>
          <Percent>2</Percent>
        </VATRate>
        <VATAmount>2000</VATAmount>
        <Gross>102000</Gross>
      </Amounts>
      <Extra>
        <ExchangeRate>1.5</ExchangeRate>
      </Extra>
    </Lines>
    <Lines>
      <LineNumber>2</LineNumber>
      <Description>Test2</Description>
      <Quantity>300</Quantity>
      <UnitPrice>1000</UnitPrice>
      <Amounts>
        <Net>300000</Net>
        <VATRate>
          <Percent>3</Percent>
        </VATRate>
        <VATAmount>9000</VATAmount>
        <Gross>309000</Gross>
      </Amounts>
      <Extra>
        <ExchangeRate>2</ExchangeRate>
      </Extra>
    </Lines>
    <Lines>
      <LineNumber>3</LineNumber>
      <Description>Test3</Description>
      <Quantity>100</Quantity>
      <UnitPrice>500</UnitPrice>
      <Amounts>
        <Net>50000</Net>
        <VATRate>
          <Percent>3</Percent>
        </VATRate>
        <VATAmount>1500</VATAmount>
        <Gross>51500</Gross>
      </Amounts>
      <Extra>
        <ExchangeRate>3</ExchangeRate>
      </Extra>
    </Lines>
    <Lines>
      <LineNumber>4</LineNumber>
      <Description>Test4</Description>
      <Quantity>100</Quantity>
      <UnitPrice>500</UnitPrice>
      <Amounts>
        <Net>50000</Net>
        <VATRate>
          <Excempt>0</Excempt>
        </VATRate>
        <VATAmount>0</VATAmount>
        <Gross>50000</Gross>
      </Amounts>
      <Extra>
        <ExchangeRate>1.2</ExchangeRate>
      </Extra>
    </Lines>
  </InvoiceLines>
</Document>

以下是行和摘要部分的假定结果和当前错误结果：

谁能帮我找出这有什么问题吗

提前感谢，顺便说一下，我需要使用XSLT1.0

以下是当前的XML结果：

<?xml version="1.0" encoding="utf-8"?>
<Invoice>
  <InvoiceHeader>
    <Name>Joel Cabarles</Name>
    <InvoiceDate>01-JAN-2020</InvoiceDate>
    <InvoiceNumber>123</InvoiceNumber>
  </InvoiceHeader>
  <InvoiceDetails>
    <InvLine>
      <Number>1</Number>
      <UnitPrice></UnitPrice>
      <Quantity>200</Quantity>
      <Amounts>
        <VATRate>
          <Percent>2</Percent>
        </VATRate>
        <LineAmountData>
          <LineAmount>100000.00</LineAmount>
          <LineAmountPHP>150000.00</LineAmountPHP>
        </LineAmountData>
        <LineVATData>
          <VATAmount>2000.00</VATAmount>
          <VATAmountPHP>3000.00</VATAmountPHP>
        </LineVATData>
        <LineGrossData>
          <GrossAmount>102000.00</GrossAmount>
          <GrossAmountPHP>153000.00</GrossAmountPHP>
        </LineGrossData>
      </Amounts>
    </InvLine>
    <InvLine>
      <Number>2</Number>
      <UnitPrice></UnitPrice>
      <Quantity>300</Quantity>
      <Amounts>
        <VATRate>
          <Percent>3</Percent>
        </VATRate>
        <LineAmountData>
          <LineAmount>300000.00</LineAmount>
          <LineAmountPHP>450000.00</LineAmountPHP>
        </LineAmountData>
        <LineVATData>
          <VATAmount>9000.00</VATAmount>
          <VATAmountPHP>13500.00</VATAmountPHP>
        </LineVATData>
        <LineGrossData>
          <GrossAmount>309000.00</GrossAmount>
          <GrossAmountPHP>463500.00</GrossAmountPHP>
        </LineGrossData>
      </Amounts>
    </InvLine>
    <InvLine>
      <Number>3</Number>
      <UnitPrice></UnitPrice>
      <Quantity>100</Quantity>
      <Amounts>
        <VATRate>
          <Percent>3</Percent>
        </VATRate>
        <LineAmountData>
          <LineAmount>50000.00</LineAmount>
          <LineAmountPHP>75000.00</LineAmountPHP>
        </LineAmountData>
        <LineVATData>
          <VATAmount>1500.00</VATAmount>
          <VATAmountPHP>2250.00</VATAmountPHP>
        </LineVATData>
        <LineGrossData>
          <GrossAmount>51500.00</GrossAmount>
          <GrossAmountPHP>77250.00</GrossAmountPHP>
        </LineGrossData>
      </Amounts>
    </InvLine>
    <InvLine>
      <Number>4</Number>
      <UnitPrice></UnitPrice>
      <Quantity>100</Quantity>
      <Amounts>
        <VATRate>
          <Excempt>0</Excempt>
        </VATRate>
        <LineAmountData>
          <LineAmount>50000.00</LineAmount>
          <LineAmountPHP>75000.00</LineAmountPHP>
        </LineAmountData>
        <LineVATData>
          <VATAmount>0.00</VATAmount>
          <VATAmountPHP>0.00</VATAmountPHP>
        </LineVATData>
        <LineGrossData>
          <GrossAmount>50000.00</GrossAmount>
          <GrossAmountPHP>75000.00</GrossAmountPHP>
        </LineGrossData>
      </Amounts>
    </InvLine>
  </InvoiceDetails>
  <InvoiceSummary>
    <Summary>
      <Rate>
        <VATRate>
          <Percent>2</Percent>
        </VATRate>
        <NetAmountData>
          <NetAmount>100000.00</NetAmount>
          <NetAmountPHP>150000.00</NetAmountPHP>
        </NetAmountData>
        <VATAmountData>
          <VATAmount>2000.00</VATAmount>
          <VATAmountPHP>3000.00</VATAmountPHP>
        </VATAmountData>
        <GrossAmountData>
          <GrossAmount>102000.00</GrossAmount>
          <GrossAmountPHP>153000.00</GrossAmountPHP>
        </GrossAmountData>
      </Rate>
      <Rate>
        <VATRate>
          <Percent>3</Percent>
        </VATRate>
        <NetAmountData>
          <NetAmount>350000.00</NetAmount>
          <NetAmountPHP>525000.00</NetAmountPHP>
        </NetAmountData>
        <VATAmountData>
          <VATAmount>10500.00</VATAmount>
          <VATAmountPHP>15750.00</VATAmountPHP>
        </VATAmountData>
        <GrossAmountData>
          <GrossAmount>360500.00</GrossAmount>
          <GrossAmountPHP>540750.00</GrossAmountPHP>
        </GrossAmountData>
      </Rate>
      <Rate>
        <VATRate>
          <Excempt>0</Excempt>
        </VATRate>
        <NetAmountData>
          <NetAmount>50000.00</NetAmount>
          <NetAmountPHP>75000.00</NetAmountPHP>
        </NetAmountData>
        <VATAmountData>
          <VATAmount>0.00</VATAmount>
          <VATAmountPHP>0.00</VATAmountPHP>
        </VATAmountData>
        <GrossAmountData>
          <GrossAmount>50000.00</GrossAmount>
          <GrossAmountPHP>75000.00</GrossAmountPHP>
        </GrossAmountData>
      </Rate>
    </Summary>
    <InvoiceNetAmountData>
      <InvoiceNetAmount>500000.00</InvoiceNetAmount>
      <InvoiceNetAmountPHP>750000.00</InvoiceNetAmountPHP>
    </InvoiceNetAmountData>
    <InvoiceVATAmountData>
      <InvoiceVATAmount>12500.00</InvoiceVATAmount>
      <InvoiceVATAmountPHP>18750.00</InvoiceVATAmountPHP>
    </InvoiceVATAmountData>
    <InvoiceGrossAmountData>
      <InvoiceGrossAmount>512500.00</InvoiceGrossAmount>
      <InvoiceGrossAmountPHP>768750.00</InvoiceGrossAmountPHP>
    </InvoiceGrossAmountData>
  </InvoiceSummary>
</Invoice>

乔尔·卡巴尔
2020年1月1日
123
1.
200
2.
100000
150000
2000
3000
102000
153000
2.
300
3.
300000
450000
9000
13500
309000
463500
3.
100
3.
50000
75000
1500
2250
51500
77250
4.
100
0
50000
75000
0
0
50000
75000
2.
100000
150000
2000
3000
102000
153000
3.
350000
525000
10500
15750
360500
540750
0
50000
75000
0
0
50000
75000
500000
750000
12500
18750
512500
768750

以下是预期输出：

<?xml version="1.0" encoding="utf-8"?>
<Invoice>
  <InvoiceHeader>
    <Name>Joel Cabarles</Name>
    <InvoiceDate>01-JAN-2020</InvoiceDate>
    <InvoiceNumber>123</InvoiceNumber>
  </InvoiceHeader>
  <InvoiceDetails>
    <InvLine>
      <Number>1</Number>
      <UnitPrice></UnitPrice>
      <Quantity>200</Quantity>
      <Amounts>
        <VATRate>
          <Percent>2</Percent>
        </VATRate>
        <LineAmountData>
          <LineAmount>100000.00</LineAmount>
          <LineAmountPHP>150000.00</LineAmountPHP>
        </LineAmountData>
        <LineVATData>
          <VATAmount>2000.00</VATAmount>
          <VATAmountPHP>3000.00</VATAmountPHP>
        </LineVATData>
        <LineGrossData>
          <GrossAmount>102000.00</GrossAmount>
          <GrossAmountPHP>153000.00</GrossAmountPHP>
        </LineGrossData>
      </Amounts>
    </InvLine>
    <InvLine>
      <Number>2</Number>
      <UnitPrice></UnitPrice>
      <Quantity>300</Quantity>
      <Amounts>
        <VATRate>
          <Percent>3</Percent>
        </VATRate>
        <LineAmountData>
          <LineAmount>300000.00</LineAmount>
          <LineAmountPHP>600000.00</LineAmountPHP>
        </LineAmountData>
        <LineVATData>
          <VATAmount>9000.00</VATAmount>
          <VATAmountPHP>18000.00</VATAmountPHP>
        </LineVATData>
        <LineGrossData>
          <GrossAmount>309000.00</GrossAmount>
          <GrossAmountPHP>618000.00</GrossAmountPHP>
        </LineGrossData>
      </Amounts>
    </InvLine>
    <InvLine>
      <Number>3</Number>
      <UnitPrice></UnitPrice>
      <Quantity>100</Quantity>
      <Amounts>
        <VATRate>
          <Percent>3</Percent>
        </VATRate>
        <LineAmountData>
          <LineAmount>50000.00</LineAmount>
          <LineAmountPHP>150000.00</LineAmountPHP>
        </LineAmountData>
        <LineVATData>
          <VATAmount>1500.00</VATAmount>
          <VATAmountPHP>4500.00</VATAmountPHP>
        </LineVATData>
        <LineGrossData>
          <GrossAmount>51500.00</GrossAmount>
          <GrossAmountPHP>154500.00</GrossAmountPHP>
        </LineGrossData>
      </Amounts>
    </InvLine>
    <InvLine>
      <Number>4</Number>
      <UnitPrice></UnitPrice>
      <Quantity>100</Quantity>
      <Amounts>
        <VATRate>
          <Excempt>0</Excempt>
        </VATRate>
        <LineAmountData>
          <LineAmount>50000.00</LineAmount>
          <LineAmountPHP>60000.00</LineAmountPHP>
        </LineAmountData>
        <LineVATData>
          <VATAmount>0.00</VATAmount>
          <VATAmountPHP>0.00</VATAmountPHP>
        </LineVATData>
        <LineGrossData>
          <GrossAmount>50000.00</GrossAmount>
          <GrossAmountPHP>60000.00</GrossAmountPHP>
        </LineGrossData>
      </Amounts>
    </InvLine>
  </InvoiceDetails>
  <InvoiceSummary>
    <Summary>
      <Rate>
        <VATRate>
          <Percent>2</Percent>
        </VATRate>
        <NetAmountData>
          <NetAmount>100000.00</NetAmount>
          <NetAmountPHP>150000.00</NetAmountPHP>
        </NetAmountData>
        <VATAmountData>
          <VATAmount>2000.00</VATAmount>
          <VATAmountPHP>3000.00</VATAmountPHP>
        </VATAmountData>
        <GrossAmountData>
          <GrossAmount>102000.00</GrossAmount>
          <GrossAmountPHP>153000.00</GrossAmountPHP>
        </GrossAmountData>
      </Rate>
      <Rate>
        <VATRate>
          <Percent>3</Percent>
        </VATRate>
        <NetAmountData>
          <NetAmount>350000.00</NetAmount>
          <NetAmountPHP>750000.00</NetAmountPHP>
        </NetAmountData>
        <VATAmountData>
          <VATAmount>10500.00</VATAmount>
          <VATAmountPHP>22500.00</VATAmountPHP>
        </VATAmountData>
        <GrossAmountData>
          <GrossAmount>360500.00</GrossAmount>
          <GrossAmountPHP>772500.00</GrossAmountPHP>
        </GrossAmountData>
      </Rate>
      <Rate>
        <VATRate>
          <Excempt>0</Excempt>
        </VATRate>
        <NetAmountData>
          <NetAmount>50000.00</NetAmount>
          <NetAmountPHP>60000.00</NetAmountPHP>
        </NetAmountData>
        <VATAmountData>
          <VATAmount>0.00</VATAmount>
          <VATAmountPHP>0.00</VATAmountPHP>
        </VATAmountData>
        <GrossAmountData>
          <GrossAmount>50000.00</GrossAmount>
          <GrossAmountPHP>60000.00</GrossAmountPHP>
        </GrossAmountData>
      </Rate>
    </Summary>
    <InvoiceNetAmountData>
      <InvoiceNetAmount>500000.00</InvoiceNetAmount>
      <InvoiceNetAmountPHP>960000.00</InvoiceNetAmountPHP>
    </InvoiceNetAmountData>
    <InvoiceVATAmountData>
      <InvoiceVATAmount>12500.00</InvoiceVATAmount>
      <InvoiceVATAmountPHP>25500.00</InvoiceVATAmountPHP>
    </InvoiceVATAmountData>
    <InvoiceGrossAmountData>
      <InvoiceGrossAmount>512500.00</InvoiceGrossAmount>
      <InvoiceGrossAmountPHP>985500.00</InvoiceGrossAmountPHP>
    </InvoiceGrossAmountData>
  </InvoiceSummary>
</Invoice>

乔尔·卡巴尔
2020年1月1日
123
1.
200
2.
100000
150000
2000
3000
102000
153000
2.
300
3.
300000
600000
9000
18000
309000
618000
3.
100
3.
50000
150000
1500
4500
51500
154500
4.
100
0
50000
60000
0
0
50000
60000
2.
100000
150000
2000
3000
102000
153000
3.
350000
750000
10500
22500
360500
772500
0
50000
60000
0
0
50000
60000
500000
960000
12500
25500
512500
985500

我认为

 <xsl:when test="//Extra/ExchangeRate[position()]!=''">

你很想

 <xsl:when test="ancestor::Lines//Extra/ExchangeRate">
    <xsl:value-of select="format(ancestor::Lines//Extra/ExchangeRate, ...)"/>

---

我一次又一次地迷失在你命名的模板后面。但因为它是您的样式，所以我对您的样式表进行了调整，您猜对了，再次添加命名模板

看来问题的核心在于使用哪个

xRate

。请按照评论进行解释

<xsl:stylesheet version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
    <xsl:strip-space elements="*"/>

    <xsl:key name="amt-by-rate" match="Amounts" use="VATRate/*" />
    <xsl:variable name="Curr" select="//Header/Currency" />
    <xsl:decimal-format name="decFormat" decimal-separator="." grouping-separator="," NaN="0.00"/>
    <xsl:decimal-format name="XRFormat" decimal-separator="." grouping-separator="," NaN="1.00"/>

    <xsl:template match="Document">
        <Invoice>
            <xsl:apply-templates select ="Header" />
            <xsl:apply-templates select ="InvoiceLines" />
            <xsl:call-template name="Summary" />
        </Invoice>
    </xsl:template>

    <xsl:template match="InvoiceLines">
        <InvoiceDetails>
            <xsl:apply-templates select ="Lines" />
        </InvoiceDetails>

    </xsl:template>

    <xsl:template match ="Lines">
        <!-- added an xRate variable here -->
        <xsl:variable name="xRate">
            <xsl:choose>
                <xsl:when test="Extra/ExchangeRate!=''">
                    <xsl:value-of select ="format-number(Extra/ExchangeRate,'#0.000','XRFormat')"/>
                </xsl:when>
                <xsl:otherwise>
                    <xsl:value-of select="format-number(//Header/ExchangeRate,'#0.000','XRFormat')"/>
                </xsl:otherwise>
            </xsl:choose>
        </xsl:variable>
        <InvLine>
            <Number>
                <xsl:value-of select="LineNumber"/>
            </Number>
            <UnitPrice>
                <xsl:value-of select="Amount"/>
            </UnitPrice>
            <Quantity>
                <xsl:value-of select="Quantity"/>
            </Quantity>
            <Amounts>
                <xsl:copy-of select="Amounts/VATRate"/>
                <xsl:call-template name="Amounts">
                    <xsl:with-param name="SectionName" select="'LineAmountData'" />
                    <xsl:with-param name="FieldName" select="'LineAmount'" />
                    <xsl:with-param name="Data" select="Amounts/Net" />
                    <xsl:with-param name="xRate" select="$xRate" />
                </xsl:call-template>
                <xsl:call-template name="Amounts">
                    <xsl:with-param name="SectionName" select="'LineVATData'" />
                    <xsl:with-param name="FieldName" select="'VATAmount'" />
                    <xsl:with-param name="Data" select="Amounts/VATAmount" />
                    <xsl:with-param name="xRate" select="$xRate" />
                </xsl:call-template>
                <xsl:call-template name="Amounts">
                    <xsl:with-param name="SectionName" select="'LineGrossData'" />
                    <xsl:with-param name="FieldName" select="'GrossAmount'" />
                    <xsl:with-param name="Data" select="Amounts/Gross" />
                    <xsl:with-param name="xRate" select="$xRate" />
                </xsl:call-template>
            </Amounts>
        </InvLine>
    </xsl:template>

    <xsl:template name="Summary">
        <InvoiceSummary>
            <xsl:variable name="amounts" select="InvoiceLines/Lines/Amounts" />
            <Summary>
                <!-- group for each unique VATRate percentage -->
                <xsl:for-each select="$amounts[generate-id(.)=generate-id(key('amt-by-rate', VATRate/*)[1])]">
                    <!-- store each value of Net according to xRate -->
                    <xsl:variable name="each_Net">
                        <xsl:call-template name="xRate_times_net">
                            <xsl:with-param name="curr_VATRate" select="VATRate/*"/>
                        </xsl:call-template>
                    </xsl:variable>
                    <!-- convert the string to get a total value -->
                    <xsl:variable name="Net">
                        <xsl:call-template name="getCount">
                            <xsl:with-param name="str" select="$each_Net"/>
                            <xsl:with-param name="delimiter" select="','"/>
                        </xsl:call-template>
                    </xsl:variable>
                    <!-- same approach as above -->
                    <xsl:variable name="each_VAT">
                        <xsl:call-template name="xRate_times_VAT">
                            <xsl:with-param name="curr_VATRate" select="VATRate/*"/>
                        </xsl:call-template>
                    </xsl:variable>
                    <!-- same approach as above -->
                    <xsl:variable name="VAT">
                        <xsl:call-template name="getCount">
                            <xsl:with-param name="str" select="$each_VAT"/>
                            <xsl:with-param name="delimiter" select="','"/>
                        </xsl:call-template>
                    </xsl:variable>
                    <!-- same approach as above -->
                    <xsl:variable name="each_Gross">
                        <xsl:call-template name="xRate_times_Gross">
                            <xsl:with-param name="curr_VATRate" select="VATRate/*"/>
                        </xsl:call-template>
                    </xsl:variable>
                    <!-- same approach as above -->
                    <xsl:variable name="Gross">
                        <xsl:call-template name="getCount">
                            <xsl:with-param name="str" select="$each_Gross"/>
                            <xsl:with-param name="delimiter" select="','"/>
                        </xsl:call-template>
                    </xsl:variable>
                    <xsl:variable name="current-group" select="key('amt-by-rate', VATRate/*)" />
                    <Rate>
                        <xsl:copy-of select="VATRate"/>
                        <!-- this is a called template for grouped Summary -->
                        <xsl:call-template name="Amounts_Summary">
                            <xsl:with-param name="SectionName" select="'NetAmountData'" />
                            <xsl:with-param name="FieldName" select="'NetAmount'" />
                            <xsl:with-param name="Data" select="sum($current-group/Net)" />
                            <xsl:with-param name="Data_n_xRate" select="$Net" />
                        </xsl:call-template>
                        <xsl:call-template name="Amounts_Summary">
                            <xsl:with-param name="SectionName" select="'VATAmountData'" />
                            <xsl:with-param name="FieldName" select="'VATAmount'" />
                            <xsl:with-param name="Data" select="sum($current-group/VATAmount)" />
                            <xsl:with-param name="Data_n_xRate" select="$VAT" />
                        </xsl:call-template>
                        <xsl:call-template name="Amounts_Summary">
                            <xsl:with-param name="SectionName" select="'GrossAmountData'" />
                            <xsl:with-param name="FieldName" select="'GrossAmount'" />
                            <xsl:with-param name="Data" select="sum($current-group/Gross)" />
                            <xsl:with-param name="Data_n_xRate" select="$Gross" />
                        </xsl:call-template>
                    </Rate>
                </xsl:for-each>
            </Summary>
            <!-- the following shows the templates for the overall summary -->
            <xsl:variable name="all_Net">
                <xsl:for-each select="//Amounts/Net">
                    <xsl:variable name="xRate">
                        <xsl:choose>
                            <xsl:when test="../following-sibling::Extra/ExchangeRate!=''">
                                <xsl:value-of select ="format-number(../following-sibling::Extra/ExchangeRate,'#0.000','XRFormat')"/>
                            </xsl:when>
                            <xsl:otherwise>
                                <xsl:value-of select="format-number(//Header/ExchangeRate,'#0.000','XRFormat')"/>
                            </xsl:otherwise>
                        </xsl:choose>
                    </xsl:variable>
                    <xsl:if test="position()&gt;1">
                        <xsl:text>,</xsl:text>
                    </xsl:if>
                    <xsl:value-of select=".*$xRate"/>
                </xsl:for-each>
            </xsl:variable>
            <xsl:variable name="sum_Net">
                <xsl:call-template name="getCount">
                    <xsl:with-param name="str" select="$all_Net"/>
                    <xsl:with-param name="delimiter" select="','"/>
                </xsl:call-template>
            </xsl:variable>
            <xsl:variable name="all_VAT">
                <xsl:for-each select="//Amounts/VATAmount">
                    <xsl:variable name="xRate">
                        <xsl:choose>
                            <xsl:when test="../following-sibling::Extra/ExchangeRate!=''">
                                <xsl:value-of select ="format-number(../following-sibling::Extra/ExchangeRate,'#0.000','XRFormat')"/>
                            </xsl:when>
                            <xsl:otherwise>
                                <xsl:value-of select="format-number(//Header/ExchangeRate,'#0.000','XRFormat')"/>
                            </xsl:otherwise>
                        </xsl:choose>
                    </xsl:variable>
                    <xsl:if test="position()&gt;1">
                        <xsl:text>,</xsl:text>
                    </xsl:if>
                    <xsl:value-of select=".*$xRate"/>
                </xsl:for-each>
            </xsl:variable>
            <xsl:variable name="sum_VAT">
                <xsl:call-template name="getCount">
                    <xsl:with-param name="str" select="$all_VAT"/>
                    <xsl:with-param name="delimiter" select="','"/>
                </xsl:call-template>
            </xsl:variable>
            <xsl:variable name="all_Gross">
                <xsl:for-each select="//Amounts/Gross">
                    <xsl:variable name="xRate">
                        <xsl:choose>
                            <xsl:when test="../following-sibling::Extra/ExchangeRate!=''">
                                <xsl:value-of select ="format-number(../following-sibling::Extra/ExchangeRate,'#0.000','XRFormat')"/>
                            </xsl:when>
                            <xsl:otherwise>
                                <xsl:value-of select="format-number(//Header/ExchangeRate,'#0.000','XRFormat')"/>
                            </xsl:otherwise>
                        </xsl:choose>
                    </xsl:variable>
                    <xsl:if test="position()&gt;1">
                        <xsl:text>,</xsl:text>
                    </xsl:if>
                    <xsl:value-of select=".*$xRate"/>
                </xsl:for-each>
            </xsl:variable>
            <xsl:variable name="sum_Gross">
                <xsl:call-template name="getCount">
                    <xsl:with-param name="str" select="$all_Gross"/>
                    <xsl:with-param name="delimiter" select="','"/>
                </xsl:call-template>
            </xsl:variable>
            <xsl:call-template name="Amounts_Summary">
                <xsl:with-param name="SectionName" select="'InvoiceNetAmountData'" />
                <xsl:with-param name="FieldName" select="'InvoiceNetAmount'" />
                <xsl:with-param name="Data" select="sum($amounts/Net)" />
                <xsl:with-param name="Data_n_xRate" select="$sum_Net" />
            </xsl:call-template>
            <xsl:call-template name="Amounts_Summary">
                <xsl:with-param name="SectionName" select="'InvoiceVATAmountData'" />
                <xsl:with-param name="FieldName" select="'InvoiceVATAmount'" />
                <xsl:with-param name="Data" select="sum($amounts/VATAmount)" />
                <xsl:with-param name="Data_n_xRate" select="$sum_VAT" />
            </xsl:call-template>
            <xsl:call-template name="Amounts_Summary">
                <xsl:with-param name="SectionName" select="'InvoiceGrossAmountData'" />
                <xsl:with-param name="FieldName" select="'InvoiceGrossAmount'" />
                <xsl:with-param name="Data" select="sum($amounts/Gross)" />
                <xsl:with-param name="Data_n_xRate" select="$sum_Gross" />
            </xsl:call-template>
        </InvoiceSummary>
    </xsl:template>

    <xsl:template match="Header">
        <InvoiceHeader>
            <Name>
                <xsl:value-of select="concat(FirstName,' ',LastName)" />
            </Name>
            <InvoiceDate>
                <xsl:value-of select="InvoiceDate" />
            </InvoiceDate>
            <InvoiceNumber>
                <xsl:value-of select="InvoiceNumber" />
            </InvoiceNumber>
        </InvoiceHeader>
    </xsl:template>

    <xsl:template name ="Amounts">
        <xsl:param name="SectionName" />
        <xsl:param name="FieldName" />
        <xsl:param name="DecimalPrecision" />
        <xsl:param name="Data" />
        <xsl:param name="xRate" />

        <xsl:choose>
            <xsl:when test="$SectionName!=''">
                <xsl:element name="{$SectionName}">
                    <xsl:element name="{$FieldName}">
                        <xsl:value-of select="format-number($Data, '#0.00' ,'decFormat')" />
                    </xsl:element>
                    <xsl:element name="{$FieldName}PHP">
                        <xsl:value-of select="format-number($Data * $xRate, '#0.00','decFormat')" />
                    </xsl:element>
                </xsl:element>
            </xsl:when>
            <xsl:otherwise>
                <xsl:element name="{$FieldName}">
                    <xsl:value-of select="format-number($Data, '#0.00','decFormat')" />
                </xsl:element>
                <xsl:element name="{$FieldName}PHP">
                    <xsl:value-of select="format-number($Data * $xRate, '#0.00','decFormat')" />
                </xsl:element>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:template>

    <xsl:template name ="Amounts_Summary">
        <xsl:param name="SectionName" />
        <xsl:param name="FieldName" />
        <xsl:param name="DecimalPrecision" />
        <xsl:param name="Data" />
        <xsl:param name="Data_n_xRate" />

        <xsl:choose>
            <xsl:when test="$SectionName!=''">
                <xsl:element name="{$SectionName}">
                    <xsl:element name="{$FieldName}">
                        <xsl:value-of select="format-number($Data, '#0.00' ,'decFormat')" />
                    </xsl:element>
                    <xsl:element name="{$FieldName}PHP">
                        <xsl:value-of select="format-number($Data_n_xRate, '#0.00','decFormat')" />
                    </xsl:element>
                </xsl:element>
            </xsl:when>
            <xsl:otherwise>
                <xsl:element name="{$FieldName}">
                    <xsl:value-of select="format-number($Data, '#0.00','decFormat')" />
                </xsl:element>
                <xsl:element name="{$FieldName}PHP">
                    <xsl:value-of select="format-number($Data_n_xRate, '#0.00','decFormat')" />
                </xsl:element>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:template>

    <xsl:template name="xRate_times_net">
        <xsl:param name="curr_VATRate"/>
        <xsl:for-each select="key('amt-by-rate', $curr_VATRate)">
            <xsl:variable name="xRate">
                <xsl:choose>
                    <xsl:when test="following-sibling::Extra/ExchangeRate!=''">
                        <xsl:value-of select ="format-number(following-sibling::Extra/ExchangeRate,'#0.000','XRFormat')"/>
                    </xsl:when>
                    <xsl:otherwise>
                        <xsl:value-of select="format-number(//Header/ExchangeRate,'#0.000','XRFormat')"/>
                    </xsl:otherwise>
                </xsl:choose>
            </xsl:variable>
            <xsl:if test="position()&gt;1">
                <xsl:text>,</xsl:text>
            </xsl:if>
            <xsl:value-of select="Net*$xRate"/>
        </xsl:for-each>
    </xsl:template>

    <xsl:template name="xRate_times_VAT">
        <xsl:param name="curr_VATRate"/>
        <xsl:for-each select="key('amt-by-rate', VATRate/*)">
            <xsl:variable name="xRate">
                <xsl:choose>
                    <xsl:when test="following-sibling::Extra/ExchangeRate!=''">
                        <xsl:value-of select ="format-number(following-sibling::Extra/ExchangeRate,'#0.000','XRFormat')"/>
                    </xsl:when>
                    <xsl:otherwise>
                        <xsl:value-of select="format-number(//Header/ExchangeRate,'#0.000','XRFormat')"/>
                    </xsl:otherwise>
                </xsl:choose>
            </xsl:variable>
            <xsl:if test="position()&gt;1">
                <xsl:text>,</xsl:text>
            </xsl:if>
            <xsl:value-of select="VATAmount*$xRate"/>
        </xsl:for-each>
    </xsl:template>

    <xsl:template name="xRate_times_Gross">
        <xsl:param name="curr_VATRate"/>
        <xsl:for-each select="key('amt-by-rate', VATRate/*)">
            <xsl:variable name="xRate">
                <xsl:choose>
                    <xsl:when test="following-sibling::Extra/ExchangeRate!=''">
                        <xsl:value-of select ="format-number(following-sibling::Extra/ExchangeRate,'#0.000','XRFormat')"/>
                    </xsl:when>
                    <xsl:otherwise>
                        <xsl:value-of select="format-number(//Header/ExchangeRate,'#0.000','XRFormat')"/>
                    </xsl:otherwise>
                </xsl:choose>
            </xsl:variable>
            <xsl:if test="position()&gt;1">
                <xsl:text>,</xsl:text>
            </xsl:if>
            <xsl:value-of select="Gross*$xRate"/>
        </xsl:for-each>
    </xsl:template>

    <xsl:template name="getCount" >
        <xsl:param name="str" />
        <xsl:param name="delimiter" />
        <xsl:param name="summation" select="0" />
        <xsl:choose>
            <xsl:when test="contains($str,$delimiter)">
                <xsl:variable name="beforecomma" select="substring-before($str,$delimiter)" />
                <xsl:variable name="aftercomma" select="substring-after($str,$delimiter)" />
                <xsl:call-template name="getCount">
                    <xsl:with-param name="str" select="$aftercomma" />
                    <xsl:with-param name="delimiter" select="$delimiter" />
                    <xsl:with-param name="summation" select="$summation + $beforecomma" />
                </xsl:call-template>
            </xsl:when>
            <xsl:otherwise>
                <xsl:value-of select="$summation + $str" />
            </xsl:otherwise>
        </xsl:choose>
    </xsl:template>
</xsl:stylesheet>

我建议将模板匹配与
xsl:template match
和
apply templates
一起使用，而不是使用命名模板和
调用模板
，因为这样您就有了处理当前处理的节点的上下文节点，并且更容易编写和检查与上下文相关的条件。我已经不知道所有被调用的模板在摘要模板中想要什么样的上下文节点，但是
只是简单地选择文档中任何
Extra
元素的
ExchangeRate
子元素，XSLT 1
格式编号（//Extra/ExchangeRate
将使用第一个。问题是您有一个通用的“Formatter”使用许多参数命名模板，除了比率。按照您的设计（我不会），您还应该传递一个
$xRate
参数：在
行
上下文中，即
（/Document/Header/ExchangeRate | Extra/ExchangeRate）[
<xsl:stylesheet version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
    <xsl:strip-space elements="*"/>

    <xsl:key name="amt-by-rate" match="Amounts" use="VATRate/*" />
    <xsl:variable name="Curr" select="//Header/Currency" />
    <xsl:decimal-format name="decFormat" decimal-separator="." grouping-separator="," NaN="0.00"/>
    <xsl:decimal-format name="XRFormat" decimal-separator="." grouping-separator="," NaN="1.00"/>

    <xsl:template match="Document">
        <Invoice>
            <xsl:apply-templates select ="Header" />
            <xsl:apply-templates select ="InvoiceLines" />
            <xsl:call-template name="Summary" />
        </Invoice>
    </xsl:template>

    <xsl:template match="InvoiceLines">
        <InvoiceDetails>
            <xsl:apply-templates select ="Lines" />
        </InvoiceDetails>

    </xsl:template>

    <xsl:template match ="Lines">
        <!-- added an xRate variable here -->
        <xsl:variable name="xRate">
            <xsl:choose>
                <xsl:when test="Extra/ExchangeRate!=''">
                    <xsl:value-of select ="format-number(Extra/ExchangeRate,'#0.000','XRFormat')"/>
                </xsl:when>
                <xsl:otherwise>
                    <xsl:value-of select="format-number(//Header/ExchangeRate,'#0.000','XRFormat')"/>
                </xsl:otherwise>
            </xsl:choose>
        </xsl:variable>
        <InvLine>
            <Number>
                <xsl:value-of select="LineNumber"/>
            </Number>
            <UnitPrice>
                <xsl:value-of select="Amount"/>
            </UnitPrice>
            <Quantity>
                <xsl:value-of select="Quantity"/>
            </Quantity>
            <Amounts>
                <xsl:copy-of select="Amounts/VATRate"/>
                <xsl:call-template name="Amounts">
                    <xsl:with-param name="SectionName" select="'LineAmountData'" />
                    <xsl:with-param name="FieldName" select="'LineAmount'" />
                    <xsl:with-param name="Data" select="Amounts/Net" />
                    <xsl:with-param name="xRate" select="$xRate" />
                </xsl:call-template>
                <xsl:call-template name="Amounts">
                    <xsl:with-param name="SectionName" select="'LineVATData'" />
                    <xsl:with-param name="FieldName" select="'VATAmount'" />
                    <xsl:with-param name="Data" select="Amounts/VATAmount" />
                    <xsl:with-param name="xRate" select="$xRate" />
                </xsl:call-template>
                <xsl:call-template name="Amounts">
                    <xsl:with-param name="SectionName" select="'LineGrossData'" />
                    <xsl:with-param name="FieldName" select="'GrossAmount'" />
                    <xsl:with-param name="Data" select="Amounts/Gross" />
                    <xsl:with-param name="xRate" select="$xRate" />
                </xsl:call-template>
            </Amounts>
        </InvLine>
    </xsl:template>

    <xsl:template name="Summary">
        <InvoiceSummary>
            <xsl:variable name="amounts" select="InvoiceLines/Lines/Amounts" />
            <Summary>
                <!-- group for each unique VATRate percentage -->
                <xsl:for-each select="$amounts[generate-id(.)=generate-id(key('amt-by-rate', VATRate/*)[1])]">
                    <!-- store each value of Net according to xRate -->
                    <xsl:variable name="each_Net">
                        <xsl:call-template name="xRate_times_net">
                            <xsl:with-param name="curr_VATRate" select="VATRate/*"/>
                        </xsl:call-template>
                    </xsl:variable>
                    <!-- convert the string to get a total value -->
                    <xsl:variable name="Net">
                        <xsl:call-template name="getCount">
                            <xsl:with-param name="str" select="$each_Net"/>
                            <xsl:with-param name="delimiter" select="','"/>
                        </xsl:call-template>
                    </xsl:variable>
                    <!-- same approach as above -->
                    <xsl:variable name="each_VAT">
                        <xsl:call-template name="xRate_times_VAT">
                            <xsl:with-param name="curr_VATRate" select="VATRate/*"/>
                        </xsl:call-template>
                    </xsl:variable>
                    <!-- same approach as above -->
                    <xsl:variable name="VAT">
                        <xsl:call-template name="getCount">
                            <xsl:with-param name="str" select="$each_VAT"/>
                            <xsl:with-param name="delimiter" select="','"/>
                        </xsl:call-template>
                    </xsl:variable>
                    <!-- same approach as above -->
                    <xsl:variable name="each_Gross">
                        <xsl:call-template name="xRate_times_Gross">
                            <xsl:with-param name="curr_VATRate" select="VATRate/*"/>
                        </xsl:call-template>
                    </xsl:variable>
                    <!-- same approach as above -->
                    <xsl:variable name="Gross">
                        <xsl:call-template name="getCount">
                            <xsl:with-param name="str" select="$each_Gross"/>
                            <xsl:with-param name="delimiter" select="','"/>
                        </xsl:call-template>
                    </xsl:variable>
                    <xsl:variable name="current-group" select="key('amt-by-rate', VATRate/*)" />
                    <Rate>
                        <xsl:copy-of select="VATRate"/>
                        <!-- this is a called template for grouped Summary -->
                        <xsl:call-template name="Amounts_Summary">
                            <xsl:with-param name="SectionName" select="'NetAmountData'" />
                            <xsl:with-param name="FieldName" select="'NetAmount'" />
                            <xsl:with-param name="Data" select="sum($current-group/Net)" />
                            <xsl:with-param name="Data_n_xRate" select="$Net" />
                        </xsl:call-template>
                        <xsl:call-template name="Amounts_Summary">
                            <xsl:with-param name="SectionName" select="'VATAmountData'" />
                            <xsl:with-param name="FieldName" select="'VATAmount'" />
                            <xsl:with-param name="Data" select="sum($current-group/VATAmount)" />
                            <xsl:with-param name="Data_n_xRate" select="$VAT" />
                        </xsl:call-template>
                        <xsl:call-template name="Amounts_Summary">
                            <xsl:with-param name="SectionName" select="'GrossAmountData'" />
                            <xsl:with-param name="FieldName" select="'GrossAmount'" />
                            <xsl:with-param name="Data" select="sum($current-group/Gross)" />
                            <xsl:with-param name="Data_n_xRate" select="$Gross" />
                        </xsl:call-template>
                    </Rate>
                </xsl:for-each>
            </Summary>
            <!-- the following shows the templates for the overall summary -->
            <xsl:variable name="all_Net">
                <xsl:for-each select="//Amounts/Net">
                    <xsl:variable name="xRate">
                        <xsl:choose>
                            <xsl:when test="../following-sibling::Extra/ExchangeRate!=''">
                                <xsl:value-of select ="format-number(../following-sibling::Extra/ExchangeRate,'#0.000','XRFormat')"/>
                            </xsl:when>
                            <xsl:otherwise>
                                <xsl:value-of select="format-number(//Header/ExchangeRate,'#0.000','XRFormat')"/>
                            </xsl:otherwise>
                        </xsl:choose>
                    </xsl:variable>
                    <xsl:if test="position()&gt;1">
                        <xsl:text>,</xsl:text>
                    </xsl:if>
                    <xsl:value-of select=".*$xRate"/>
                </xsl:for-each>
            </xsl:variable>
            <xsl:variable name="sum_Net">
                <xsl:call-template name="getCount">
                    <xsl:with-param name="str" select="$all_Net"/>
                    <xsl:with-param name="delimiter" select="','"/>
                </xsl:call-template>
            </xsl:variable>
            <xsl:variable name="all_VAT">
                <xsl:for-each select="//Amounts/VATAmount">
                    <xsl:variable name="xRate">
                        <xsl:choose>
                            <xsl:when test="../following-sibling::Extra/ExchangeRate!=''">
                                <xsl:value-of select ="format-number(../following-sibling::Extra/ExchangeRate,'#0.000','XRFormat')"/>
                            </xsl:when>
                            <xsl:otherwise>
                                <xsl:value-of select="format-number(//Header/ExchangeRate,'#0.000','XRFormat')"/>
                            </xsl:otherwise>
                        </xsl:choose>
                    </xsl:variable>
                    <xsl:if test="position()&gt;1">
                        <xsl:text>,</xsl:text>
                    </xsl:if>
                    <xsl:value-of select=".*$xRate"/>
                </xsl:for-each>
            </xsl:variable>
            <xsl:variable name="sum_VAT">
                <xsl:call-template name="getCount">
                    <xsl:with-param name="str" select="$all_VAT"/>
                    <xsl:with-param name="delimiter" select="','"/>
                </xsl:call-template>
            </xsl:variable>
            <xsl:variable name="all_Gross">
                <xsl:for-each select="//Amounts/Gross">
                    <xsl:variable name="xRate">
                        <xsl:choose>
                            <xsl:when test="../following-sibling::Extra/ExchangeRate!=''">
                                <xsl:value-of select ="format-number(../following-sibling::Extra/ExchangeRate,'#0.000','XRFormat')"/>
                            </xsl:when>
                            <xsl:otherwise>
                                <xsl:value-of select="format-number(//Header/ExchangeRate,'#0.000','XRFormat')"/>
                            </xsl:otherwise>
                        </xsl:choose>
                    </xsl:variable>
                    <xsl:if test="position()&gt;1">
                        <xsl:text>,</xsl:text>
                    </xsl:if>
                    <xsl:value-of select=".*$xRate"/>
                </xsl:for-each>
            </xsl:variable>
            <xsl:variable name="sum_Gross">
                <xsl:call-template name="getCount">
                    <xsl:with-param name="str" select="$all_Gross"/>
                    <xsl:with-param name="delimiter" select="','"/>
                </xsl:call-template>
            </xsl:variable>
            <xsl:call-template name="Amounts_Summary">
                <xsl:with-param name="SectionName" select="'InvoiceNetAmountData'" />
                <xsl:with-param name="FieldName" select="'InvoiceNetAmount'" />
                <xsl:with-param name="Data" select="sum($amounts/Net)" />
                <xsl:with-param name="Data_n_xRate" select="$sum_Net" />
            </xsl:call-template>
            <xsl:call-template name="Amounts_Summary">
                <xsl:with-param name="SectionName" select="'InvoiceVATAmountData'" />
                <xsl:with-param name="FieldName" select="'InvoiceVATAmount'" />
                <xsl:with-param name="Data" select="sum($amounts/VATAmount)" />
                <xsl:with-param name="Data_n_xRate" select="$sum_VAT" />
            </xsl:call-template>
            <xsl:call-template name="Amounts_Summary">
                <xsl:with-param name="SectionName" select="'InvoiceGrossAmountData'" />
                <xsl:with-param name="FieldName" select="'InvoiceGrossAmount'" />
                <xsl:with-param name="Data" select="sum($amounts/Gross)" />
                <xsl:with-param name="Data_n_xRate" select="$sum_Gross" />
            </xsl:call-template>
        </InvoiceSummary>
    </xsl:template>

    <xsl:template match="Header">
        <InvoiceHeader>
            <Name>
                <xsl:value-of select="concat(FirstName,' ',LastName)" />
            </Name>
            <InvoiceDate>
                <xsl:value-of select="InvoiceDate" />
            </InvoiceDate>
            <InvoiceNumber>
                <xsl:value-of select="InvoiceNumber" />
            </InvoiceNumber>
        </InvoiceHeader>
    </xsl:template>

    <xsl:template name ="Amounts">
        <xsl:param name="SectionName" />
        <xsl:param name="FieldName" />
        <xsl:param name="DecimalPrecision" />
        <xsl:param name="Data" />
        <xsl:param name="xRate" />

        <xsl:choose>
            <xsl:when test="$SectionName!=''">
                <xsl:element name="{$SectionName}">
                    <xsl:element name="{$FieldName}">
                        <xsl:value-of select="format-number($Data, '#0.00' ,'decFormat')" />
                    </xsl:element>
                    <xsl:element name="{$FieldName}PHP">
                        <xsl:value-of select="format-number($Data * $xRate, '#0.00','decFormat')" />
                    </xsl:element>
                </xsl:element>
            </xsl:when>
            <xsl:otherwise>
                <xsl:element name="{$FieldName}">
                    <xsl:value-of select="format-number($Data, '#0.00','decFormat')" />
                </xsl:element>
                <xsl:element name="{$FieldName}PHP">
                    <xsl:value-of select="format-number($Data * $xRate, '#0.00','decFormat')" />
                </xsl:element>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:template>

    <xsl:template name ="Amounts_Summary">
        <xsl:param name="SectionName" />
        <xsl:param name="FieldName" />
        <xsl:param name="DecimalPrecision" />
        <xsl:param name="Data" />
        <xsl:param name="Data_n_xRate" />

        <xsl:choose>
            <xsl:when test="$SectionName!=''">
                <xsl:element name="{$SectionName}">
                    <xsl:element name="{$FieldName}">
                        <xsl:value-of select="format-number($Data, '#0.00' ,'decFormat')" />
                    </xsl:element>
                    <xsl:element name="{$FieldName}PHP">
                        <xsl:value-of select="format-number($Data_n_xRate, '#0.00','decFormat')" />
                    </xsl:element>
                </xsl:element>
            </xsl:when>
            <xsl:otherwise>
                <xsl:element name="{$FieldName}">
                    <xsl:value-of select="format-number($Data, '#0.00','decFormat')" />
                </xsl:element>
                <xsl:element name="{$FieldName}PHP">
                    <xsl:value-of select="format-number($Data_n_xRate, '#0.00','decFormat')" />
                </xsl:element>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:template>

    <xsl:template name="xRate_times_net">
        <xsl:param name="curr_VATRate"/>
        <xsl:for-each select="key('amt-by-rate', $curr_VATRate)">
            <xsl:variable name="xRate">
                <xsl:choose>
                    <xsl:when test="following-sibling::Extra/ExchangeRate!=''">
                        <xsl:value-of select ="format-number(following-sibling::Extra/ExchangeRate,'#0.000','XRFormat')"/>
                    </xsl:when>
                    <xsl:otherwise>
                        <xsl:value-of select="format-number(//Header/ExchangeRate,'#0.000','XRFormat')"/>
                    </xsl:otherwise>
                </xsl:choose>
            </xsl:variable>
            <xsl:if test="position()&gt;1">
                <xsl:text>,</xsl:text>
            </xsl:if>
            <xsl:value-of select="Net*$xRate"/>
        </xsl:for-each>
    </xsl:template>

    <xsl:template name="xRate_times_VAT">
        <xsl:param name="curr_VATRate"/>
        <xsl:for-each select="key('amt-by-rate', VATRate/*)">
            <xsl:variable name="xRate">
                <xsl:choose>
                    <xsl:when test="following-sibling::Extra/ExchangeRate!=''">
                        <xsl:value-of select ="format-number(following-sibling::Extra/ExchangeRate,'#0.000','XRFormat')"/>
                    </xsl:when>
                    <xsl:otherwise>
                        <xsl:value-of select="format-number(//Header/ExchangeRate,'#0.000','XRFormat')"/>
                    </xsl:otherwise>
                </xsl:choose>
            </xsl:variable>
            <xsl:if test="position()&gt;1">
                <xsl:text>,</xsl:text>
            </xsl:if>
            <xsl:value-of select="VATAmount*$xRate"/>
        </xsl:for-each>
    </xsl:template>

    <xsl:template name="xRate_times_Gross">
        <xsl:param name="curr_VATRate"/>
        <xsl:for-each select="key('amt-by-rate', VATRate/*)">
            <xsl:variable name="xRate">
                <xsl:choose>
                    <xsl:when test="following-sibling::Extra/ExchangeRate!=''">
                        <xsl:value-of select ="format-number(following-sibling::Extra/ExchangeRate,'#0.000','XRFormat')"/>
                    </xsl:when>
                    <xsl:otherwise>
                        <xsl:value-of select="format-number(//Header/ExchangeRate,'#0.000','XRFormat')"/>
                    </xsl:otherwise>
                </xsl:choose>
            </xsl:variable>
            <xsl:if test="position()&gt;1">
                <xsl:text>,</xsl:text>
            </xsl:if>
            <xsl:value-of select="Gross*$xRate"/>
        </xsl:for-each>
    </xsl:template>

    <xsl:template name="getCount" >
        <xsl:param name="str" />
        <xsl:param name="delimiter" />
        <xsl:param name="summation" select="0" />
        <xsl:choose>
            <xsl:when test="contains($str,$delimiter)">
                <xsl:variable name="beforecomma" select="substring-before($str,$delimiter)" />
                <xsl:variable name="aftercomma" select="substring-after($str,$delimiter)" />
                <xsl:call-template name="getCount">
                    <xsl:with-param name="str" select="$aftercomma" />
                    <xsl:with-param name="delimiter" select="$delimiter" />
                    <xsl:with-param name="summation" select="$summation + $beforecomma" />
                </xsl:call-template>
            </xsl:when>
            <xsl:otherwise>
                <xsl:value-of select="$summation + $str" />
            </xsl:otherwise>
        </xsl:choose>
    </xsl:template>
</xsl:stylesheet>