How to create elements on behalf of an given number? - xslt

Question

A normal order has orderlines. A pre order has no orderlines but does tell me how many I could expect te receive. The application that is receiving the orders can handle orders with orderlines. Because we are now also using pre orders I'd like to create the same amount of empty orderlines that's in the pre order so the application can accept the edi.
I've already created a check to see if its a order with orderlines or a pre order.
Example incoming code, in this case 'amount 3' means there should be 3 order lines:
<WarehouseOutboundOrder>
<Amount>3</Amount>
<OrderDate>27-05-2019 13:22</OrderDate>
<CreationReason>E01_NEW_PREORDER</CreationReason>
</WarehouseOutboundOrder>
Expected outgoing code:
<WarehouseOutboundOrder>
<Amount>3</Amount>
<OrderDate>27-05-2019 13:22</OrderDate>
<CreationReason>E01_NEW_PREORDER</CreationReason>
<WarehouseOutboundOrderLine>
<Quantity></Quantity>
<Description></Description>
</WarehouseOutboundOrderLine>
<WarehouseOutboundOrderLine>
<Quantity></Quantity>
<Description></Description>
</WarehouseOutboundOrderLine>
<WarehouseOutboundOrderLine>
<Quantity></Quantity>
<Description></Description>
</WarehouseOutboundOrderLine>
</WarehouseOutboundOrder>
How can I achieve this using xslt?

Answer 1

How about:
XSLT 2.0
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:template match="WarehouseOutboundOrder">
<xsl:copy>
<xsl:copy-of select="*"/>
<xsl:for-each select="1 to Amount">
<WarehouseOutboundOrderLine>
<Quantity/>
<Description/>
</WarehouseOutboundOrderLine>
</xsl:for-each>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
Demo: https://xsltfiddle.liberty-development.net/gWvjQfM