When passed a URI containing a fragment identifier ("doc#bla"), the
document() function should interpret it according to the document's
ID table, which can be accessed using the id() function.# more /t2 document-function-fragment-id.xml <!DOCTYPE Boote [ <!ATTLIST Boot id ID #IMPLIED> ]> <Boote> <Boot id="U3"/> <Boot/> <Boot id="U5"/> <Boot id="U99"/> </Boote> # more /t2 document-function-fragment-id.xsl <?xml version="1.0" encoding="ISO-8859-1"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform";> <xsl:variable name="doc" select="'document-function-fragment-id.xml'"/> <xsl:variable name="id" select="'U5'"/> <xsl:template match="/"> <xsl:copy-of select="document( concat( $doc, '#', $id))"/> <!-- Only in 2.0: <xsl:copy-of select="document( $doc)/id( $id)"/> <xsl:copy-of select="id( $id, document( $doc))"/> --> </xsl:template> </xsl:stylesheet> Saxon (6.5, 9.1) and LibXSLT (1.1.24) produce the following result: <Boot id="U5"/> Xalan 2.7.1 disregards the fragment identifier and copies the entire document instead of doing a lookup using the document's ID table. The XSLT 1.0 specification says: If the URI reference does contain a fragment identifier, the function returns a node-set containing the nodes in the tree identified by the fragment identifier of the URI reference. The semantics of the fragment identifier is dependent on the media type of the result of retrieving the URI. If there is an error in processing the fragment identifier, the XSLT processor may signal the error; if it does not signal the error, it must recover by returning an empty node-set. -- http://www.w3.org/TR/1999/REC-xslt-19991116#document <xsl:variable name="id" select="document('lookup.xml#ML1971HH')"/> This feature of looking up an ID in an external document by specifying it in the fragment identifier is really convenient. Where it is not supported, you have to do a context switch using <xsl:for-each> and create a result tree fragment (RTF) and then possibly use x:node-set(), which is inconvenient: <xsl:variable name="node-with-id"><!-- RTF in XSLT 1.0 --> <xsl:for-each select="document('lookup.xml')"> <xsl:copy-of select="id('ML1971HH')"/> </xsl:for-each> </xsl:variable> <xsl:copy-of select="$node-with-id"/> <StrVal><xsl:value-of select="$node-with-id"/></StrVal> <!-- Have to use exsl:node-set() to navigate the RTF. --> This caught my attention here: Re: [xsl] AltovaXML and fragment identifier - Michael Ludwig http://markmail.org/message/6ad5trhfztlzior7 Michael Ludwig
