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XSLT2.0 temporary nodeset as parameter
Dear ALL,
I'm new to XSLT2.0 and want to switch from XSLT1.0 to make my scripts smaller. My understanding of XSLT2.0 is that I can appply XPATH(2.0) on a fragment without calling a specific node-set function. I'm using saxon 8.0. The example has three parts the xslt, a xml called with saxon and a xml loaded by document function. I have to process over the two xml node sets. Running the xslt gives me the follwoing error message: Error at value-of on line 29 of file:/proj/URANUS/_work_kemperr/_V1.0/ _xml/TESTCASE/Stimulus20.xslt: Required type of first operand of '/' is node(); supplied value is xs:string Transformation failed: Run-time errors were reported The question is why the parameter value is treated as string ? In case I comment out the critical line (<xsl:value-of select="$pParams[1]/@Value" />) I get the expeted ################ result ################## Calling Sequence LEVEL1 Vector 2BIT Calling Sequence LEVEL2 Nested Vector 1BIT Nested Vector 2BIT Vector 3BIT duecs37: saxon StimulusTest1.xml Stimulus20.xslt Vector 1 Calling Sequence LEVEL1 Vector 2BIT Calling Sequence LEVEL2 Nested Vector 1BIT Nested Vector 2BIT Vector 3BIT ################### xslt ############################## <xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/ Transform"> <!-- saxon call: saxon StimulusTest1.xml Stimulus20.xslt --> <!-- THIS IS A XSLT 2.0 SCRIPT --> <xsl:output method="text" version="1.0" encoding="UTF-8" indent="no"/ > <xsl:variable name="gfDEF" select="document('StimulusDef1.xml')/ STIMULUSDEF"/> <xsl:variable name="cNewLine" select="'
'"/> <!-- we call the xslt on the StimulusTest.xml --> <xsl:template match="/"> <xsl:apply-templates select="STIMULUS/TEST/CREATE"/> </xsl:template> <xsl:template match="CREATE"> <xsl:param name="pParams"/> <xsl:variable name="vSeqName" select="@Name"/> <xsl:value-of select="@Comment"/> <xsl:apply-templates select="BIT"> <xsl:with-param name="pParams" select="$pParams"/> </xsl:apply-templates> <xsl:value-of select="$cNewLine"/> <xsl:if test="@VectorType='Sequence'"> <xsl:apply-templates select="$gfDEF/SEQS/SEQ[@Name=$vSeqName]/ CREATE"> <xsl:with-param name="pParams" select="PARAM"/> </xsl:apply-templates> </xsl:if> </xsl:template> <xsl:template match="BIT"> <xsl:param name="pParams"/> <xsl:text>BIT</xsl:text> <xsl:value-of select="$pParams[1]/@Value" /> </xsl:template> </xsl:stylesheet> ################## xml called wit saxon #################### <?xml version="1.0" encoding="UTF-8"?> <STIMULUS DefPath="StimulusDef.xml"> <TEST Name="MyTest" > <CREATE VectorType="Vector" Comment="Vector 1"/> <CREATE VectorType="Sequence" Name="LEVEL1" Comment="Calling Sequence LEVEL1"> <PARAM Name="Addr" Value="'ADDR1'"/> <PARAM Name="Write" Value="'DATA1'"/> </CREATE> <CREATE VectorType="Vector" Split="CSISplit" Comment="Vector 2"> <BIT Name="BIT1" Value="2"/> </CREATE> <CREATE VectorType="Sequence" Name="LEVEL2" Comment="Calling Sequence LEVEL2"> <PARAM Name="Addr" Value="'ADDR2'"/> <PARAM Name="Write" Value="'DATA2'"/> </CREATE> <CREATE VectorType="Vector" Comment="Vector 3"> <BIT Name="BIT1" Value="3"/> </CREATE> </TEST> </STIMULUS> ######################## xml called by document function ############ <?xml version="1.0" encoding="UTF-8"?> <STIMULUSDEF> <SEQS> <SEQ Name="LEVEL2" Comment="Level 2"> <CREATE VectorType="Vector" Comment="Nested Vector 1" > <BIT Name="BIT1" Value="2.1"/> </CREATE> <CREATE VectorType="Vector" Comment="Nested Vector 2"> <BIT Name="BIT1" Value="2.2"/> </CREATE> </SEQ> <SEQ Name="LEVEL1A" Comment="Level 1A"> <CREATE VectorType="Vector" Comment="LEVEL1A Vector 1" > <BIT Name="BIT1" Value="1.1"/> </CREATE> <CREATE VectorType="Vector" Comment="LEVEL1A Vector 2" > <BIT Name="BIT1" Value="1.2"/> </CREATE> </SEQ> <SEQ Name="LEVEL1B" Comment="Level 1B"> <CREATE VectorType="Vector" Comment="LEVEL1B Vector 1" > <BIT Name="BIT1" Value="10.1"/> </CREATE> <CREATE VectorType="Sequence" Name="LEVEL2" Comment="Call nested sequence " > <PARAM Name="Addr" Value="'ADDR3'"/> <PARAM Name="Write" Value="'DATA3'"/> </CREATE> <CREATE VectorType="Vector" Comment="LEVEL1BVector 1" > <BIT Name="BIT1" Value="10.2"/> </CREATE> </SEQ> </SEQS> </STIMULUSDEF> ############# END ########################## |
Re: XSLT2.0 temporary nodeset as parameter
RolfK <Rolf.Kemper@eu.necel.com> wrote in <7bc326f7-6ac8-4d15-8b25-f3be945966ca@p1g2000hsb.googlegroups.com>: > Running the xslt gives me the follwoing error message: > > Error at value-of on line 29 of > file:/proj/URANUS/_work_kemperr/_V1.0/ > _xml/TESTCASE/Stimulus20.xslt: > Required type of first operand of '/' is node(); > supplied value is > xs:string > Transformation failed: Run-time errors were reported > > The question is why the parameter value is treated as > string ? > > ################### xslt ############################## > <xsl:stylesheet version="2.0" > xmlns:xsl="http://www.w3.org/1999/XSL/ Transform"> > <!-- saxon call: saxon StimulusTest1.xml Stimulus20.xslt > --> <!-- THIS IS A XSLT 2.0 SCRIPT --> > <xsl:output method="text" version="1.0" encoding="UTF-8" > indent="no"/ >> > <xsl:variable name="gfDEF" > select="document('StimulusDef1.xml')/ STIMULUSDEF"/> > <xsl:variable name="cNewLine" select="'
'"/> > <!-- we call the xslt on the StimulusTest.xml --> > <xsl:template match="/"> > <xsl:apply-templates select="STIMULUS/TEST/CREATE"/> Invoked without xsl:with-param... > </xsl:template> > > <xsl:template match="CREATE"> > <xsl:param name="pParams"/> ....therefore this is uninitialized. See 9.2 in XSLT2, which answers the question you posed above. > <xsl:variable name="vSeqName" select="@Name"/> > <xsl:value-of select="@Comment"/> > <xsl:apply-templates select="BIT"> > <xsl:with-param name="pParams" select="$pParams"/> And now you invoke the template application, passing zero-length string as pParams parameter. > </xsl:apply-templates> > <xsl:value-of select="$cNewLine"/> > <xsl:if test="@VectorType='Sequence'"> > <xsl:apply-templates > select="$gfDEF/SEQS/SEQ[@Name=$vSeqName]/ CREATE"> > <xsl:with-param name="pParams" select="PARAM"/> > </xsl:apply-templates> > </xsl:if> > </xsl:template> > <xsl:template match="BIT"> > <xsl:param name="pParams"/> > <xsl:text>BIT</xsl:text> > <xsl:value-of select="$pParams[1]/@Value" /> And, naturally, it all breaks here, because, as Saxon told you, / wants a nodeset as the first operand, and you're passing a string. What else did you expect? > </xsl:template> > > </xsl:stylesheet> -- ....also, I submit that we all must honourably commit seppuku right now rather than serve the Dark Side by producing the HTML 5 spec. |
Re: XSLT2.0 temporary nodeset as parameter
On 17 Dez., 08:55, Pavel Lepin <p.le...@ctncorp.com> wrote:
> RolfK <Rolf.Kem...@eu.necel.com> wrote in > <7bc326f7-6ac8-4d15-8b25-f3be94596...@p1g2000hsb.googlegroups.com>: > > > > > > > Running the xslt gives me the follwoing error message: > > > Error at value-of on line 29 of > > file:/proj/URANUS/_work_kemperr/_V1.0/ > > _xml/TESTCASE/Stimulus20.xslt: > > Required type of first operand of '/' is node(); > > supplied value is > > xs:string > > Transformation failed: Run-time errors were reported > > > The question is why the parameter value is treated as > > string ? > > > ################### xslt ############################## > > <xsl:stylesheet version="2.0" > > xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> > > <!-- saxon call: saxon StimulusTest1.xml Stimulus20.xslt > > --> <!-- THIS IS A XSLT 2.0 SCRIPT --> > > <xsl:output method="text" version="1.0" encoding="UTF-8" > > indent="no"/ > > > <xsl:variable name="gfDEF" > > select="document('StimulusDef1.xml')/ STIMULUSDEF"/> > > <xsl:variable name="cNewLine" select="'
'"/> > > <!-- we call the xslt on the StimulusTest.xml --> > > <xsl:template match="/"> > > <xsl:apply-templates select="STIMULUS/TEST/CREATE"/> > > Invoked without xsl:with-param... > > > </xsl:template> > > > <xsl:template match="CREATE"> > > <xsl:param name="pParams"/> > > ...therefore this is uninitialized. See 9.2 in XSLT2, which > answers the question you posed above. > > > <xsl:variable name="vSeqName" select="@Name"/> > > <xsl:value-of select="@Comment"/> > > <xsl:apply-templates select="BIT"> > > <xsl:with-param name="pParams" select="$pParams"/> > > And now you invoke the template application, passing > zero-length string as pParams parameter. > > > </xsl:apply-templates> > > <xsl:value-of select="$cNewLine"/> > > <xsl:if test="@VectorType='Sequence'"> > > <xsl:apply-templates > > select="$gfDEF/SEQS/SEQ[@Name=$vSeqName]/ CREATE"> > > <xsl:with-param name="pParams" select="PARAM"/> > > </xsl:apply-templates> > > </xsl:if> > > </xsl:template> > > <xsl:template match="BIT"> > > <xsl:param name="pParams"/> > > <xsl:text>BIT</xsl:text> > > <xsl:value-of select="$pParams[1]/@Value" /> > > And, naturally, it all breaks here, because, as Saxon told > you, / wants a nodeset as the first operand, and you're > passing a string. What else did you expect? > > > </xsl:template> > > > </xsl:stylesheet> > > -- > ...also, I submit that we all must honourably commit seppuku > right now rather than serve the Dark Side by producing the > HTML 5 spec.- Zitierten Text ausblenden - > > - Zitierten Text anzeigen - Pavel , thanks a lot, I think it gets clear now. Saxon seems to be quite strict which is good in my understanding. Rolf |
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