missingCallStackFrame.xsl

<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:fn="http://www.w3.org/2005/xpath-functions"
                xmlns:f="http://test.example"
                exclude-result-prefixes="xsl xs fn f">
    <xsl:variable name="in">
        <node1>
            <node2>
                <node3>
                    <node4/>
                </node3>
            </node2>
        </node1>
    </xsl:variable>
    <xsl:template match="/">
        <out1>
            <out2>
                <xsl:apply-templates select="/" mode="m1"/>
            </out2>
        </out1>
    </xsl:template>
    <xsl:template match="/" mode="m1">
        <out3>
            <xsl:apply-templates select="$in/node1" mode="m2"/>
        </out3>
    </xsl:template>
    <xsl:template match="node1" mode="m2">
        <out4>
            <xsl:apply-templates select="node2" mode="m2"/>
        </out4>
    </xsl:template>
    <xsl:template match="node2" mode="m2">
        <out5>
            <xsl:apply-templates select="node3" mode="m2"/>
        </out5>
    </xsl:template>
    <xsl:template match="node3" mode="m2">
        <out6>
            <out7>
                <out8>
                    <out9>
                        <out10>
                            <out11>
                                <xsl:apply-templates select="node4" mode="m3"/>
                            </out11>
                        </out10>
                    </out9>
                </out8>
            </out7>
        </out6>
    </xsl:template>
    <xsl:template match="node4" mode="m3">
        <xsl:variable name="var1" select="f:fn1('')"/>
        <xsl:value-of select="$var1"/>
    </xsl:template>
    <xsl:function name="f:fn1">
        <xsl:param name="p1"/>
        <xsl:variable name="var1" select="''"/>
        <xsl:variable name="var2" select="f:fn2($p1)"/>
        <xsl:sequence select="string-join(($var1, $var2), '')"/>
    </xsl:function>
    <xsl:function name="f:fn2">
        <xsl:param name="p1"/>
        <xsl:variable name="var1" select="''"/>
        <xsl:variable name="var2" select="f:fn3($var1, '')"/>
        <xsl:sequence select="$var2"/>
    </xsl:function>
    <xsl:function name="f:fn3">
        <xsl:param name="p1"/>
        <xsl:param name="p2"/>
        <xsl:sequence select="f:fn3($p1, $p2, '')"/>
    </xsl:function>
    <xsl:function name="f:fn3">
        <xsl:param name="p1"/>
        <xsl:param name="p2"/>
        <xsl:param name="p3"/>
        <xsl:message terminate="yes">
            <xsl:text>Happy needle hunting</xsl:text>
        </xsl:message>
    </xsl:function>
</xsl:stylesheet>

testMissingCallStackFrame.sh

#!/bin/sh
if ! which brew > /dev/null
then 
    echo "ERROR: Missing homebrew" > /dev/stderr
fi
if ! which saxon > /dev/null
then 
    brew install saxon
fi
#/usr/local/bin/saxon
#/usr/local/opt/saxon/bin/saxon
saxon -xsl:missingCallStackFrame.xsl -s:missingCallStackFrame.xsl