The <xsl:sort> element defines a sort key for nodes selected by <xsl:apply-templates> or <xsl:for-each> and determines the order in which they are processed.

Syntax

<xsl:sort
  select=EXPRESSION
  order="ascending" | "descending"
  case-order="upper-first" | "lower-first"
  lang=XML:LANG-CODE
  data-type="text" | "number" />

Required Attributes

None.

Optional Attributes

• select
  • : Uses an XPath expression to specify the nodes to be sorted.
• order
  • : Specifies whether the nodes should be processed in ascending or descending order. The default is ascending.
• case-order
  • : Indicates whether upper- or lowercase letters are to be ordered first. The allowable values are upper-first and lower-first.
• lang
  • : Specifies which language is to be used by the sort.
• data-type
  • : Defines whether items are to be ordered alphabetically or numerically. The allowable values are text and number with text being the default.

Type

Subinstruction, always appears as a child of <xsl:for-each>, where it must appear before the template proper or of <xsl:apply-templates>.

Specifications

XSLT, section10.

Gecko support

Supported.