RE: [xsl] Temporary Trees and Parser Upgrades

["Michael Kay" <mike@xxxxxxxxxxxx>]

It fails saying

  XTDE1490: Cannot write more than one result document to the same URI, or
write to a URI
  that has been read: file:/c:/MyJava/users/shellenberger/$doi_filename

which is because you have written

<xsl:result-document  href="$doi_filename">

when you meant

<xsl:result-document  href="{$doi_filename}">

It might not have produced that error under 8.8, but I can't see how it can
have "worked" in any meaningful sense when all the output files were written
to the same location.

When I fix that error it fails looking for cat2.xml and article2.xml which
you didn't supply; when I remove those from index.xml, it seems to run
successfully, producing an output file at
file:/c:/projects/working/Playground/10.99990000000000000.xml

(just as well I didn't have anything valuable at that location!)

Incidentally, this is a case where you need the -t option on the command
line to see where your output files have gone.

Michael Kay
http://www.saxonica.com/

 

> -----Original Message-----
> From: Mark Shellenberger [mailto:mshellenberger@xxxxxxxxx] 
> Sent: 10 April 2007 23:10
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: [xsl] Temporary Trees and Parser Upgrades
> 
> XSLT  Gurus,
> 
> I have the following stylesheet that  worked when parsing with Saxon
> 8.8.04 but no longer works with Saxon 8.9.  I  assume this is 
> because some aspect of either xsl:variable or document() was  
> tightened up to the standard and my implementation was 
> sub-standard. The final  goal of this stylesheet is to take 
> in a single lookup table containing file  pairs, combine the 
> category element values of the category file with the entire  
> content of the article in the pair.  The output would have 
> the category elements  as children of the categories element. 
>  The combined structure would be output  with the doi as the filename.
> There will be one output file for each pair of  input 
> documents identified in the lookup table.
> 
> I imagine that this stylesheet is a  wonder of missed 
> opportunities and strangely used structures.  I'd appreciate  
> any constructive comments you have on it.  But, since it 
> worked in Saxon 8.8 and  I now need to use Saxon 8.9, my 
> major concern is figuring out why it no longer  works.
> 
> I leave myself to your tender mercies.
> 
> --Mark
> 
> xslt 2.0  file
> 
> <?xml version="1.0"  encoding="UTF-8"?>
> <xsl:stylesheet  xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> version="2.0">
>     <xsl:output method="xml"  indent="yes"/>
>     <xsl:template  match="//PAIR">
> 
>         <!-- Create variables to  hold documents pointed to 
> from index.xml -->
>         <xsl:variable  name="article" select="document(ARTICLE)"/>
>         <xsl:variable  name="category" select="document(CAT)"/>
> 
>         <!-- Create temporary  tree with entire article and 
> descendents of the categories element  -->
>         <xsl:variable  name="temp">
>             <xsl:apply-templates  
> select="$article|$category//categories"/>
>          </xsl:variable>
> 
>          <!-- Creates output  directories and filenames -->
>         <xsl:variable  name="doi_filename">
>              <xsl:text>/projects/working/</xsl:text><xsl:value-of
> select="//FOLDER"/><xsl:text>/</xsl:text><xsl:value-of
> select="substring-before($category//doi, '/')"/>
>             <xsl:value-of  select="substring-after($category//doi,
> '/')"/><xsl:text>.xml</xsl:text>
>          </xsl:variable>
> 
>         <!-- Output document with  doi as filename -->
>         <xsl:result-document  href="$doi_filename">
>             <xsl:apply-templates  select="$temp"/>
>          </xsl:result-document>
>     </xsl:template>
> 
>    <!-- output category elements  as children of 
> article-meta/categories element  -->
>     <xsl:template  match="//article-meta//categories">
>          <xsl:copy>
>            <xsl:apply-templates
> select="//article-meta/following-sibling::categories//category"/>
>          </xsl:copy>
>      </xsl:template>
> 
>      <!-- Drop all category  elements -->
>     <xsl:template  match="/categories"/>
> 
>      <!-- Identity Transform  -->
>     <xsl:template  match="node()|@*">
>          <xsl:copy>
>             <xsl:apply-templates  select="@*"/>
>              <xsl:apply-templates/>
>          </xsl:copy>
>      </xsl:template>
> </xsl:stylesheet>
> 
> Index.xml
> <INDEX>
>      <WORKFOLDER>C:</WORKFOLDER>
>      <FOLDER>Playground</FOLDER>
>      <PAIRS>
>          <PAIR>
>              <ARTICLE>article1.xml</ARTICLE>
>              <CAT>cat1.xml</CAT>
>          </PAIR>
>          <PAIR>
>              <ARTICLE>article2.xml</ARTICLE>
>              <CAT>cat2.xml</CAT>
>          </PAIR>
>      </PAIRS>
> </INDEX>
> 
> Cat1.xml:
> <article-category>
>                  <doi>10.9999/0000000000000</doi>
>                  <categories>
>                                 <category>Jungle Gyms</category>
>                                  <category>Swing Sets</category>
>                                  <category>Monkey Bars</category>
>                                  <category>Slides</category>
>                  </categories>
> </article-category>
> 
> 
> Article1.xml
> <root doi="10.9999/0000000000000"  type="journal">
>      <header>
>          <journal-meta>
>             <title>Journal of  Playgrounds</title>
>              <ISSN>0000-000x</ISSN>
>              <volume>1</volume>
>              <issue>4</issue>
>              <date>
>                  <year>2003</year>
>                  <month>June</month>
>              </date>
>              <publication>
>                 <name>Me  Enterprises</name>
>                  <location>Springfield, Simpson State</location>
>              </publication>
>          </journal-meta>
>          <article-meta>
>             <title>Playground  Equipment</title>
>              <subtitle>Alternative Methods and  Conclusions</subtitle>
>              <author>
>                  <person>
>                      <firstname>Bob</firstname>
>                      <middle>J.</middle>
>                      <surname>Smith</surname>
>                      <aff>University of Pennsylvania</aff>
>                  </person>
>              </author>
>              <startpage>98</startpage>
>              <finishpage>119</finishpage>
>              <categories/>
>          </article-meta>
>      </header>
>      <body>     </body>
>      <references>    </references>
>      </root>