The World Wide Web - Enabling Semantic Web Services: The Web Service Modeling Ontology - page 21

< ? xml version =”1.0” encoding=”UTF − 8”? >
< xsl:stylesheet xmlns:xsl =”http://www.w3.org/1999/XSL/Transform”

version =”1.0”
xmlns:wsmo=”http://www.wsmo.org/namespace”
xmlns=”http://www.w3.org/1999/xhtml” >

< xsl:template match=”/” >
< html xmlns=”http://www.w3.org/1999/xhtml” >
< title > The chairs of the WSMO Working Group < /title >
< body >
< h1 > WSMO WG Chairs < /h1 >
< xsl:apply − templates/ >
< /body >
< /html >
< /xsl:template >

< xsl:template match=”wsmo:member[@chair='yes']” >
< em >< xsl:value − of select=”./wsmo:lastname”/ >< /em > ,
< xsl:value

of select =”./wsmo:firstname”/ >< br/ >
< /xsl:template >

−

< xsl:template match=”text() | @ ∗ ”/ >

< / xsl:stylesheet >

(a) An XSLT Stylesheet . . .

(b) . . . which converts the XML file from Listing. 2.1 into XHTML

Fig. 2.6. XSLT: converting between different XML formats

XPath and XSLT processors are also available off the shelf, e.g. XERCES 11
from Apache. The simplicity of the underlying data model combined with the
increasing tool support has made XML the most successful data exchange
format for information integration applications (not restricted to Web appli-
cations alone).

Applications of XML

Nowadays, XML has reached the status of a universal data exchange format
with high industry support. In applications such as data integration or Web

11 http://xerces.apache.org .