Re: Checking external files based on the attribute val

Dear Darcy,

I am writing an schematron and i struck in this case. I did not found
any forum which is providing help on schematron. As the schematron is
based on XSLT and XPath I am raising the questions here.

Thanks once again for you ready made solution for me.

Regards,
Ganesh


On 8/13/08, Darcy Parker <darcyparker@xxxxxxxxx> wrote:
> Hi Ganesh,
>
> There are a few problems with your expression...
>
> The predicate is:
> contains(.,substring-after(concat(@picfile,'.tif'),'I'))
>
> Note: There is no @picfile attribute in the
> document('filelist.xml')/files/file elements... so
> concat(@picfile,'.tif') is going to just return '.tif'.
>
> I don't think you need boolean()
>
> I am assuming your are running the XSL with <graphic
> picfile="I970106058X_bulb"/> in your input XML.
>
> I am not sure the context you are calling the expression that checks
> for the presence of the slightly modified @picfile value in
> filelist.xml... So the following is a guess along with a suggested new
> expression:
>
> <xsl:for-each select="//graphic/@picfile"/>
>    <xsl:variable name="Currentpicfile" select="."/>
>    <xsl:choose>
>      <xsl:when
> test="document('filelist.xml')/files/file[contains(.,substring-after(concat($Currentpicfile,'.tif'),'I'))]">
>          Good
>      </xsl:when>
>      <xsl:otherwise>
>          Bad
>      </xsl:otherwise>
>    </xsl:choose>
> </xsl:for-each>
>
> Note:
> This type of check is what Schematron is excellent at...
>
> <?xml version="1.0" encoding="UTF-8"?>
>
> <schema	xmlns="http://purl.oclc.org/dsdl/schematron"
> 			xmlns:iso="http://purl.oclc.org/dsdl/schematron"
> 			schemaVersion="Test1.0">
> 	<title>Example</title>
>
> 	<let name="RVPStructure"
> value="doc(concat($RVPDITABranchHomeURL,'/wbs_precompose/ExpandedRVPStructure.xml'))"/>
> 									
> 	<pattern id="GeneralExecutionSteps.Checks">
> 		<title>Example Pattern</title>
> 		<rule context="//graphic/@picfile">
> 		    <let name="Currentpicfile" value="."/>
> 		    <assert
> test="document('filelist.xml')/files/file[contains(.,substring-after(concat($Currentpicfile,'.tif'),'I'))]">Error
> @picfile="<value-of select="."/>" does not exist in
> filelist.xml</assert>
> 		</rule>
> 	</pattern>
> </schema>
>
> Darcy
>
> On Wed, Aug 13, 2008 at 9:12 AM, Ganesh Babu N <nbabuganesh@xxxxxxxxx>
> wrote:
>>
>> Dear All,
>>
>> I am having an XML file in which I am having the following coding
>>
>>                                <graphic picfile="I970106058X_bulb"/>
>>
>> All the graphic filenames are stored in a separate XML file the contents
>> are:
>>
>> filelist.xml
>>
>> <files>
>> <file>./970106058X_c01_0002.tif</file>
>> <file>./970106058X_c01_0001.tif</file>
>> <file>./970106058X_bulb.tif</file>
>> <file>./970106058X_0000.tif</file>
>> <file>./970106058X_c01_0003.tif</file>
>> </files>
>>
>>
>> Now my task is to search the filelist.xml for @picfile value and if it
>> is not found raise an error.
>> I am using the following code:
>>
>> boolean(document('filelist.xml')/files/file[contains(.,
>> substring-after(concat(@picfile,'.tif'),'I'))] )
>>
>> But i am not getting any message. Please help me how to achieve this task.
>>
>> Regards,
>> Ganesh