Keys are very potent tools in the armory of an XSLT programmer. While it may take some time before mastering the concept, the effort pays off.
Keys are defined using xsl:key element. The name attribute provides a name for the key, the match attribute determines which nodes in the source document will be matched and the use attribute specifies the criterium which decides whether the node matches or not. Function key() then selects nodes based on a key.
In this example the key "kkk" matches all "bbb" elements in the source document. The function key('kkk','a') selects all "bbb" elements which have their attribute "x" equal to 'a' (determined by use).
| XSLT <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0"> <xsl:output method="xml" indent="yes" omit-xml-declaration="yes"/> <xsl:key name="kkk" match="bbb" use="@x"/> <xsl:template match="/aaa"> <xsl:apply-templates select="key('kkk','a')"/> </xsl:template> <xsl:template match="bbb"> <uuu> <xsl:value-of select="."/> </uuu> </xsl:template> </xsl:stylesheet> |
|
| XML <aaa> <bbb x="a">1</bbb> <ccc> <bbb x="b">2</bbb> </ccc> <ddd> <eee> <bbb x="a">3</bbb> </eee> </ddd> </aaa> | Output <uuu>1</uuu> <uuu>3</uuu> |
| Previous chapter: | Namespaces |
| Next chapter: | Recursions |
| Previous page: | - - - |
| Next page: | Key matching based on element context |
You can also get Organic Skin Care products from Bliss Bath Body and you must check out their Natural Body Lotions and bath soaps
Now if you are looking for the best deals on surf clothing from Quiksilver and Roxy then you have to check these amazing deals here:
Hey, check out this Organic Skin Care European Soaps along with Natural Lavender Body Lotion and shea butter
and we can get surf t shirts surfing shirt and And you must check out this website swim suit swimming suit and swim trunks