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<?xml version="1.0" encoding="ISO-8859-1"?> |
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<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> |
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<!-- |
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Purpose of this XML Stylesheet is (was) to implement a set of templates |
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to do simple xml node manipulation. (kinda XML API via XSLT) |
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Main target is "flexible insertion of new xml child nodes". |
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If this attempt works out well, it will be continued by a follow-up |
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stylesheet trying to implement XUpdate in XSLT. |
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Note: The attempt indeed seems to work out well, so this stylesheet |
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became deprecated now. Work continues inside "xupdate2xsl.xml". |
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--> |
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<xsl:output method="raw"/> |
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<!-- 1. This is the passthru logic (copy all untouched nodes). --> |
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<xsl:template name="passthru"><xsl:copy><xsl:apply-templates /></xsl:copy></xsl:template> |
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<!-- activate this --> |
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<xsl:template match="*"><xsl:call-template name="passthru" /></xsl:template> |
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<!-- override some builtin rules: see http://www.w3.org/TR/xslt#built-in-rule --> |
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<xsl:template match="comment()"><xsl:call-template name="passthru" /></xsl:template> |
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<!-- 2. This is the crud API. --> |
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<!-- 2.a. The context finder. --> |
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<!-- query part one: the node name --> |
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<xsl:template match="source"> |
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<xsl:choose> |
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<!-- query part two: the attrib key and value --> |
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<xsl:when test="@key=expekt"> |
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<xsl:call-template name="crud" > |
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<xsl:with-param name="action">CREATE</xsl:with-param> |
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<xsl:with-param name="mode">callback</xsl:with-param> |
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<xsl:with-param name="cbname">abc</xsl:with-param> |
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</xsl:call-template> |
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</xsl:when> |
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<xsl:otherwise> |
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<xsl:call-template name="passthru_kay" /> |
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</xsl:otherwise> |
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</xsl:choose> |
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</xsl:template> |
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<!-- 2.b. The node manipulators: They translate the current context. --> |
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<!-- by Mike Kay, Software AG [http://p2p.wrox.com/archive/xslt/2001-06/98.asp] --> |
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<!-- enhancements & comments: Andreas Motl, rotamente.de --> |
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<!-- <xsl:template match="source"> --> |
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<xsl:template name="passthru_kay"> |
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<xsl:copy> |
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<xsl:copy-of select="@*" /> |
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<xsl:apply-templates /> |
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</xsl:copy> |
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</xsl:template> |
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<xsl:template name="inject_kay_motl"> |
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<xsl:param name="payload" /> |
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<xsl:value-of select="$payload" /> |
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<xsl:copy> |
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<xsl:copy-of select="@*" /> |
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<xsl:apply-templates /> |
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<!-- <xsl:apply-templates select="*[3]" /> --> |
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<!-- <xsl:value-of select="text()" /> --> |
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<!-- Multiple handlers here now: a) create fressshhhh element, b) clone s.th. --> |
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<!-- TODO: Do switch/case or couple of if/then statements here to be able to handle that "at runtime". --> |
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<xsl:call-template name="create_fresh_element" /> |
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<xsl:call-template name="clone_last_element" /> |
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<xsl:call-template name="clone_element_nr" /> |
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</xsl:copy> |
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</xsl:template> |
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<xsl:template name="crud"> |
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<xsl:param name="action" /> |
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<xsl:param name="payload" /> |
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<xsl:param name="mode" /> |
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<xsl:param name="cbname" /> |
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<!-- |
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action: <xsl:value-of select="$action" /> |
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payload: <xsl:value-of select="$payload" /> |
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--> |
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<!-- |
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<xsl:if test="$action=5"> |
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CRUD: CREATE - if |
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</xsl:if> |
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--> |
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<xsl:copy> |
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<xsl:copy-of select="@*" /> |
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<xsl:apply-templates /> |
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<!-- crud action dispatcher --> |
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<xsl:choose> |
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<!-- CREATE --> |
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<xsl:when test="{$action}=CREATE"> |
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<!-- thats a (compact) switch case in xsl lingo! --> |
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<xsl:choose> |
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<xsl:when test="$payload!="> |
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<xsl:comment> Payload injected on {timestamp} </xsl:comment> |
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<xsl:value-of select="$payload" /> |
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</xsl:when> |
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<xsl:when test="$mode=callback"> |
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<xsl:comment> Payload injected via callback <xsl:value-of select="{$cbname}" /> on {$timestamp} </xsl:comment> |
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<xsl:call-template name="xupdate_element_create_embedded" /> |
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</xsl:when> |
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<xsl:otherwise> |
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<xsl:comment> Cloned last element as template on {timestamp} </xsl:comment> |
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<xsl:call-template name="clone_last_element" /> |
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</xsl:otherwise> |
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</xsl:choose> |
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</xsl:when> |
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<xsl:otherwise> |
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<xsl:comment> |
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UNKOWN CRUD ACTION: "<xsl:value-of select="$action" />" on <xsl:value-of select="$now" />. |
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</xsl:comment> |
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</xsl:otherwise> |
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</xsl:choose> |
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</xsl:copy> |
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</xsl:template> |
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<!-- 2.c. The element manipulators: They mungle a specific element inside the current context. --> |
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<!-- copy over node 1:1 (use last element as a template) --> |
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<xsl:template name="clone_last_element"> |
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<xsl:copy-of select="*[last()]" /> |
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</xsl:template> |
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<xsl:template name="clone_element_nr"> |
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<!-- TODO: let idx be passed in via "with-param" or s.th.l.th. --> |
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<xsl:copy-of select="*[2]" /> |
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</xsl:template> |
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<!-- creates instance of new element --> |
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<xsl:template name="create_fresh_element"> |
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<xsl:element name="new">content</xsl:element> |
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</xsl:template> |
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<xsl:template name="xupdate_element_create_embedded"> |
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<xsl:variable name="huhu" select="*[0]/@key">haha</xsl:variable> |
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<!-- <xsl:transform version="1.1" xmlns:xupdate="http://www.xmldb.org/xupdate"> --> |
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<!-- <xupdate:modifications version="1.0" xmlns:xupdate="http://www.xmldb.org/xupdate"> --> |
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<!-- <xsl:append select="/addresses" child="last()"> --> |
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<xsl:element name="address"> |
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<town>San Francisco</town> |
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</xsl:element> |
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<xsl:value-of select="*[0]/@key" /> |
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<xsl:value-of select="$huhu" /> |
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<!-- </xupdate:modifications> --> |
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<!-- </xsl:append> --> |
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<!-- </xsl:transform> --> |
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</xsl:template> |
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<!-- inject other stuff --> |
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<xsl:template name="inject_template"> |
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<xsl:comment> Hello World! </xsl:comment> |
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</xsl:template> |
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<!-- 0. The root node dispatcher. --> |
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<!-- <xsl:template match="source"><xsl:call-template name="insertChildNode"/></xsl:template> --> |
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<!-- 2. This is the manipulation logic: insertChildNode --> |
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<!-- 2.a. The "API" method. - now deprecated --> |
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<xsl:template name="insertChildNode"> |
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<!-- manipulate node --> |
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<xsl:comment> node - begin </xsl:comment> |
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<!-- <xsl:copy-of select="source" /> --> |
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<xsl:copy> |
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<!-- Pass through children 1:1. --> |
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<xsl:apply-templates /> |
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<!-- Call one of the manipulators - this implements injection behavior. --> |
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<xsl:call-template name="clone_last_element" /> |
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<xsl:call-template name="inject_template" /> |
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</xsl:copy> |
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<xsl:comment> node - end </xsl:comment> |
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</xsl:template> |
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</xsl:stylesheet> |
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