Adding namespaces to elements only and changing to uppercase - namespaces

Question

I have an xml coming as below
<Envelope>
<content>
<feild1>1</feild1>
....
<feild10>10<feild10>
</content>
</Envelope>
but want the xml to be (add the namespace prefix as xs1 and content lower case c to Upper case "C"
<Envelope>
<Content> <!-- Note the lower case c chnaged to Upper Case --->
<xs1:feild1>1</xs1:feild1> <!-- and for the feild, xs1 is added as prefix -->
....
<xs1:feild10>10</xs1:feild10>
</Content>
</Envelope>
Please help looking for XSLT 1.0
Here is my XSLT
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs1="https://temp">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:template match="*">
<xsl:element name="{name()}" namespace="https://temp">
<xsl:apply-templates select="#*|node()"/>
</xsl:element>
</xsl:template>
<xsl:template match="#*">
<xsl:attribute name="{name}"><xsl:value-of select="."/></xsl:attribute>
</xsl:template>
</xsl:stylesheet>

Answer 1

Hope this helps
<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs1="https://temp">
<xsl:template match="/">
<xsl:variable name="smallcase" select="'abcdefghijklmnopqrstuvwxyz'" />
<xsl:variable name="uppercase" select="'ABCDEFGHIJKLMNOPQRSTUVWXYZ'" />
<Envelope>
<xsl:for-each select="Envelope/*">
<xsl:variable name="root" select="local-name(.)"/>
<xsl:variable name="temp" select="translate($root,$smallcase,$uppercase)"/>
<xsl:variable name="temp2" select="concat(substring($temp,1,1),translate(substring($temp,2,string-length($temp)),$uppercase,$smallcase))"/>
<xsl:element name="{$temp2}">
<xsl:for-each select="child::*">
<xsl:element name="xs1:{local-name(.)}" namespace="https://temp">
<xsl:value-of select="node()"/>
</xsl:element>
</xsl:for-each>
</xsl:element>
</xsl:for-each>
</Envelope>
</xsl:template>
</xsl:stylesheet>