<meta name="description" content="Купить {result/@title}, от {.//property[@name='proizvoditel']/value/item/@name} в интернет-магазине. При заказе на сумму 2499₽ Подарок!" />
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<meta name="description">
<xsl:attribute name="content">
<xsl:text>Купить </xsl:text>
<xsl:value-of select="result/@title"/>
<xsl:text>, от </xsl:text>
<xsl:apply-templates select=".//property[@name='proizvoditel']/value/item/@name"/>
<xsl:text> в интернет-магазине. При заказе на сумму 2499₽ Подарок!</xsl:text>
</xsl:attribute>
</meta>
</xsl:template>
<xsl:template match="property[@name='proizvoditel']/value/item/@name">
<xsl:value-of select="."/>
<xsl:if test="position() != last()">
<xsl:text>, </xsl:text>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
<div>
<div class="reader-text font-size-medium">
<elem attr="a">a</elem>
<elem attr="b">b</elem>
<div class="reader-pagination">
<a class="pull-left chapter-btn" id="link-left" href="/read...">Пред. часть</a>
<div class="clearfix"></div>
</div>
<elem attr="c">c</elem>
</div>
</div>
//div[@class='reader-text font-size-medium']/*[not(@class = 'reader-pagination')]
<elem attr="a">a</elem>
<elem attr="b">b</elem>
<elem attr="c">c</elem>