xsl:variable

only for RuBoard

xsl:variable specifies a variable bound in an expression. A variable has scope, which means that a variable is only visible as a child of the parent element in which it was declared.

A variable's contents can be specified through either the select attribute or as a child element. For example, consider the declaration:

 <xsl:variable name="foo">  <xsl:value-of select="bar"/>  </xsl:variable>

This declaration is equivalent to the following:

 <xsl:variable name="foo" select="bar"/>

The difference is that the first method always binds the variable to a result-tree fragment, whereas the second method can bind the variable to a string or number.

Attributes

Attribute Name	Enforced	Description	Values
`name`	Required	The name of the variable.	`QName`
`select`	Optional	The value of the variable. If specified, the content of the `xsl:variable` element must be empty.	Expression

Example

Given the XML instance document, links.xml :

 <?xml version="1.0" encoding="utf-8" ?>  <links>       <link name="NewRiders.com" lastevaluated="2001-09-08T19:01:55"/>  </links>

The following stylesheet would parse the last evaluated attribute to display the month number:

 <?xml version="1.0" encoding="UTF-8" ?>  <xsl:stylesheet version="1.0"  xmlns:xsl="http://www.w3.org/1999/XSL/Transform">       <xsl:template name="showmonth">            <xsl:param name="date" />            <xsl:text>Month:</xsl:text><xsl:value-of select="substring ($date, 6, 2)" />            </xsl:template>       <xsl:template match="/">            <xsl:apply-templates select="links/link" />       </xsl:template>       <xsl:template match="link">           <tr>                 <td>                     <xsl:call-template name="showmonth">                       <xsl:with-param name="date">                         <xsl:value-of select="@lastevaluated" />                        </xsl:with-param>                      </xsl:call-template>                 </td>            </tr>       </xsl:template>  </xsl:stylesheet>

This results in the following output:

 <?xml version="1.0" encoding="UTF-16"?><tr><td>Month:09</td></tr>

Parent Elements

 xsl:attribute, xsl:comment, xsl:copy, xsl:element, xsl:for-each, xsl:if,  xsl:otherwise, xsl:param, xsl:processing-instruction, xsl:stylesheet  xsl:template, xsl:variable, xsl:when, xsl:with-param, output elements

Child Elements

 xsl:apply-templates, xsl:attribute, xsl:call-template, xsl:choose,  xsl:comment, xsl:copy, xsl:copy-of, xsl:element, xsl:for-each, xsl:if,  xsl:processing-instruction, xsl:text, xsl:value-of, xsl:variable, output  elements

only for RuBoard