Try It Yourself - SyntaxStudy Editor

HTML / CSS / JS

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:output method="text" encoding="UTF-8"/>

<xsl:param name="maxPrice" select="50"/>

<xsl:template match="/">
        
        <xsl:variable name="bookCount" select="count(//book)"/>
        <xsl:text>Total books: </xsl:text>
        <xsl:value-of select="$bookCount"/>
        <xsl:text>&#10;</xsl:text>

<xsl:for-each select="//book">
            <xsl:sort select="year" data-type="number" order="descending"/>

<xsl:if test="price &lt;= $maxPrice">
                <xsl:value-of select="year"/>
                <xsl:text> — </xsl:text>
                <xsl:value-of select="title"/>
                <xsl:text> ($</xsl:text>
                <xsl:value-of select="price"/>
                <xsl:text>)&#10;</xsl:text>
            </xsl:if>
        </xsl:for-each>

<xsl:variable name="total" select="sum(//price)"/>
        <xsl:text>Budget status: </xsl:text>
        <xsl:choose>
            <xsl:when test="$total &lt; 20">Low spend</xsl:when>
            <xsl:when test="$total &lt; 60">Moderate spend</xsl:when>
            <xsl:otherwise>High spend</xsl:otherwise>
        </xsl:choose>
        <xsl:text>&#10;</xsl:text>

<xsl:call-template name="separator"/>
    </xsl:template>

<xsl:template name="separator">
        <xsl:text>----------------------------&#10;</xsl:text>
    </xsl:template>

</xsl:stylesheet>