我被递归困住了，想知道是否有人可以帮助我。
我有<Receipts>和<Deposits>元素，它们并不冗长，即<Receipts>元素没有属性来显示<Deposit>它的目标。我需要弄清楚<Deposits>“仍需支付的金额”以及最后一张收据何时支付（如果有的话）。
我正在尝试使用以下代码来做到这一点：
想法是收取第一笔存款，看看是否有收据。如果押金未全额支付并且有更多收据 - 使用所有相同的参数调用该 recorsive 函数，除了现在计入后续收据。
如果没有更多收据或已支付押金 - 正确处理（添加所需属性）。否则继续进行第二次存款。等等。
但是，XSLT 崩溃并显示错误消息“处理器堆栈已溢出 - 可能的原因是无限模板递归”
我真的很感激任何帮助/提示......我对递归不是很好，也无法理解为什么我的这里不起作用。
谢谢！:)
<!-- Accumulate all the deposits with @DueAmount attribute -->
<xsl:variable name="depositsClassified">
<xsl:call-template name="classifyDeposits">
<!-- a node-list of all Deposits elements ordered by DueDate Acs -->
<xsl:with-param name="depositsAll" select="$deposits"/>
<xsl:with-param name="depositPrevAmount" select="'0'"/>
<!-- a node-list of all Receipts elements ordered by ReceivedDate Acs -->
<xsl:with-param name="receiptsAll" select="$receiptsAsc"/>
<xsl:with-param name="receiptCount" select="'1'"/>
</xsl:call-template>
</xsl:variable>
<xsl:template name="classifyDeposits">
<xsl:param name="depositsAll"/>
<xsl:param name="depositPrevAmount" select="'0'"/>
<xsl:param name="receiptsAll"/>
<xsl:param name="receiptCount"/>
<xsl:if test="$depositsAll">
<!-- Do required operations for the 1st deposit -->
<xsl:variable name="depositFirst" select="$depositsAll[1]"/>
<xsl:variable name="receiptSum">
<xsl:choose>
<xsl:when test="$receiptsAll">
<xsl:value-of select="sum($receiptsAll[position() <= $receiptCount]/@ActionAmount)"/>
</xsl:when>
<xsl:otherwise>0</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:variable name="diff" select="$depositPrevAmount + $depositFirst/@DepositTotalAmount - $receiptSum"/>
<xsl:choose>
<xsl:when test="$diff > 0 and
$receiptCount < $receiptsQuantityOf">
<xsl:call-template name="classifyDeposits">
<xsl:with-param name="depositsAll" select="$depositsAll"/>
<xsl:with-param name="depositPrevAmount" select="$depositPrevAmount"/>
<xsl:with-param name="receiptsAll" select="$receiptsAll"/>
<xsl:with-param name="receiptCount" select="$receiptCount + 1"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<!-- Record changes to the deposit (@DueAmount and receipt ReceivedDate) -->
<xsl:apply-templates select="$depositFirst" mode="defineDeposit">
<xsl:with-param name="diff" select="$diff"/>
<xsl:with-param name="latestReceiptForDeposit" select="$receiptsAll[position() = $receiptCount]"/>
</xsl:apply-templates>
<!-- Recursive call to the next deposit -->
<xsl:call-template name="classifyDeposits">
<xsl:with-param name="depositsAll" select="$depositsAll[position() > 1]"/>
<xsl:with-param name="depositPrevAmount" select="$depositPrevAmount + $depositFirst/@DepositTotalAmount"/>
<xsl:with-param name="receiptsAll" select="$receiptsAll"/>
<xsl:with-param name="receiptCount" select="'1'"/>
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:if>
</xsl:template>
<!-- Determine deposit's status, due amount and payment received date if any -->
<xsl:template match="Deposits" mode="defineDeposit">
<xsl:param name="diff"/>
<xsl:param name="latestReceiptForDeposit"/>
<xsl:choose>
<xsl:when test="$diff <= 0">
<xsl:apply-templates select="." mode="addAttrs">
<xsl:with-param name="status" select="'paid'"/>
<xsl:with-param name="dueAmount" select="'0'"/>
<xsl:with-param name="receipt" select="$latestReceiptForDeposit"/>
</xsl:apply-templates>
</xsl:when>
<xsl:when test="$diff = ./@DepositTotalAmount">
<xsl:apply-templates select="." mode="addAttrs">
<xsl:with-param name="status" select="'due'"/>
<xsl:with-param name="dueAmount" select="$diff"/>
</xsl:apply-templates>
</xsl:when>
<xsl:when test="$diff < ./@DepositTotalAmount">
<xsl:apply-templates select="." mode="addAttrs">
<xsl:with-param name="status" select="'outstanding'"/>
<xsl:with-param name="dueAmount" select="$diff"/>
<xsl:with-param name="receipt" select="$latestReceiptForDeposit"/>
</xsl:apply-templates>
</xsl:when>
<xsl:otherwise/>
</xsl:choose>
</xsl:template>
<xsl:template match="Deposits" mode="addAttrs">
<xsl:param name="status"/>
<xsl:param name="dueAmount"/>
<xsl:param name="receipt" select="''"/>
<!-- Constract a new MultiDeposits element with required info -->
<xsl:copy>
<xsl:copy-of select="./@*"/>
<xsl:attribute name="Status"><xsl:value-of select="$status"/></xsl:attribute>
<xsl:attribute name="DueAmount"><xsl:value-of select="$dueAmount"/></xsl:attribute>
<xsl:if test="$receipt">
<xsl:attribute name="latestReceiptDate">
<xsl:value-of select="$receipt/@ActionDate"/>
</xsl:attribute>
</xsl:if>
<xsl:copy-of select="./*"/>
</xsl:copy>
</xsl:template>