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<?xml version="1.0" encoding="ISO-8859-1"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:template match="/"> <html> <body> <xsl:for-each select="catalog/cd"> <p>Title: <xsl:value-of select="title"/><br /> Artist: <xsl:if test="artist=''"><xsl:message terminate="yes">
Error: Artist is an empty string!</xsl:message>
</xsl:if> <xsl:value-of select="artist"/> </p> </xsl:for-each> </body> </html> </xsl:template> </xsl:stylesheet>