Trip Report WWW2004 W3C: XML - progress report and new initiatives

there were approximately 30 attendees.

XSLT 2.0:

basics:

• designed to transform document structure
• based on two processing models: push and pull

new features:

• grouping (<xsl:for-each-group select="expression" group-by="expression">...</xsl:for-each-group>)
• regular expression (<xsl:analyse-string select="expression" regex="regular expression">...</xsl:analyse-string>)
• user defined function (<xsl:function name="name" as="s:type">.../<xsl:function>)

fundamental changes:

• enhanced data model

XQuery 1.0 and XSLT 2.0 are almost the same. however, XSLT is more powerful, XQuery has stronger type checking.

see www.w3.org/Style/XSL/ for details.

XML Query - XPath 2.0:

shall become a recommendation in 2006.

• operates on XML-schema typed and unconstrained XML
• functional, declarative query language
• FLOWER (For/Let/Where/Order by/Return)
• path expressions
• node construction
• order preserving operations
• strong typing schema (although types not required)

see www.w3.org/XML/Query for details.

XML security:

XML signature features:

• uses XML syntax to represent a signature over digital content
• 3 types: detached, enveloped, enveloping
• supported encryption: DSA, RSA, X509, PGP, PKI etc.

see www.w3.org/Signature/ for details.

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