XSLT <xsl:template> Element
A single or multiple set of rules are present in an XSL style sheet, also called templates. The rules to apply when a specified node is matched, is included in a template.
The <xsl:template> Element:
To build templates, the <xsl:template> element is used and to associate a template with an XML element, the match attribute is used. Again, to define a template for the entire XML document, the match attribute can be used. An XPath expression makes the value of the match attribute, i.e., match=”/” defines the whole document.
Example:
Books.xml:
<?xml version="1.0" encoding="UTF-8"?> <bookstore> <book category="Child"> <title lang="en">ABC</title> <author>Author Name</author> <year>2020</year> <price>100.00</price> </book> <book category="IT"> <title lang="en">XQuery Book</title> <author>Author 1</author> <author>Author 2</author> <year>2020</year> <price>300.00</price> </book> </bookstore> |
XSLT Code:
<?xml version="1.0" encoding="UTF-8"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:template match="/"> <html> <body> <h2>List of Books</h2> <table border="1"> <tr bgcolor="#9acd32"> <th>Title</th> <th>Price</th> </tr> <tr> <td>.</td> <td>.</td> </tr> </table> </body> </html> </xsl:template> </xsl:stylesheet> |
Output:
Explanation:
Being an XML document, an XSL stylesheet always begins with the XML declaration, i.e., <?xml version=”1.0″ encoding=”UTF-8″?>. Now, to specify that a document is an XSLT stylesheet document along with the version number and XSLT namespace attributes, the <xsl:stylesheet> is used. The template is defined using the <xsl:template> element, while to associate the template with the root of the XML source document, the match=”/” attribute is used. Again, to specify some HTML to write to the output, the content inside the <xsl:template> element takes the job. The end of the template and the end of the style sheet is marked by the last two lines.