• Chapter 1: Getting Started with Stylus Studio®
• Chapter 2: Editing and Querying XML
• Chapter 3: Converting Non-XML Files to XML
• Chapter 4: Working with XSLT
  • Getting Started with XSLT
  • Tutorial: Understanding How Templates Work
  • Working with Stylesheets
  • Creating Stylesheets That Generate HTML
  • Specifying Extension Functions in Stylesheets
  • Working with Templates
  • Using Third-Party XSLT Processors
  • Validating Result Documents
  • Post-processing Result Documents
  • Generating Formatting Objects
  • Generating Scalable Vector Graphics
  • Generating Java Code for XSLT
  • XSLT Instructions Quick Reference
    • xsl:apply-imports
    • xsl:apply-templates
    • xsl:attribute
    • xsl:attribute-set
    • xsl:call-template
    • xsl:character-map
    • xsl:choose
    • xsl:comment
    • xsl:copy
    • xsl:copy-of
    • xsl:decimal-format
    • xsl:element
    • xsl:fallback
    • xsl:for-each
    • xsl:for-each-group
    • xsl:function
    • xsl:if
      • Format
      • Description
      • Example
    • xsl:import
    • xsl:import-schema
    • xsl:include
    • xsl:key
    • xsl:message
    • xsl:namespace-alias
    • xsl:number
    • xsl:otherwise
    • xsl:output
    • xsl:output-character
    • xsl:param
    • xsl:preserve-space
    • xsl:processing-instruction
    • xsl:sequence
    • xsl:sort
    • xsl:strip-space
    • xsl:stylesheet
    • xsl:template
    • xsl:text
    • xsl:transform
    • xsl:value-of
    • xsl:variable
    • xsl:when
    • xsl:with-param
• Chapter 5: Creating XSLT Using the XSLT Mapper
• Chapter 6: Debugging Stylesheets
• Chapter 7: Defining XML Schemas
• Chapter 8: Defining Document Type Definitions
• Chapter 9: Writing XPath Expressions
• Chapter 10: Working with XQuery in Stylus Studio
• Chapter 11: Composing Web Service Calls
• Chapter 12: Accessing Relational Data as XML
• Chapter 13: Building XML Pipelines
• Chapter 14: Publishing XML Data
• Chapter 15: Integrating with Third-Party File Systems
• Chapter 16: Extending Stylus Studio
• Chapter 17: The Stylus Studio Java API
• Chapter 18: Stylus Studio GUI Reference

Home > Online Product Documentation > Table of Contents > xsl:if

xsl:if

Conditionally instantiates the contained template body.

Format

<xsl:if test = "expression">
               
template_body
               
</xsl:if>
               

            

Description

The XSLT processor evaluates the expression and converts the result to a Boolean value. If the result is true, the XSLT processor instantiates template_body. If the result is false, the xsl:if element has no effect.

Example

This following example formats a group of names as a comma-separated list:

<xsl:template match="namelist/name">
               
  <xsl:value-of select="." />
               
  <xsl:if test="not(position()=last())">, </xsl:if>
               
</xsl:template>
               

            

If you want the XSLT processor to choose which template to instantiate from several possibilities, specify the xsl:choose instruction. See xsl:choose.