Değişken değeri xslt olarak nasıl güncelleştirilir?

Question

.xsl dosyasında bir değişken bildirdim. Şimdi eski değeri yeni değerle güncellemek istiyorum. Örneğin,

<?xml version="1.0" encoding="iso-8859-1"?> 
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
           xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main"> 

<xsl:output method="html" indent="yes"/> 

    <xsl:template match="/"> 

    <Document> 
     <xsl:variable name="topLevelHeadings" select = "//w:body/w:p[w:pPr[w:pStyle[@w:val='Heading1']]]"/> 
     <xsl:variable name="beforeHeading" select="false()"/> 


     <xsl:choose> 

     <xsl:when test="$beforeHeading"> 
      <xsl:apply-templates select="//w:body/w:p"> 
      <xsl:with-param name="scope" select="count(//w:body/child::*)-1"/> 
      </xsl:apply-templates> 
     </xsl:when> 

     <xsl:when test="$topLevelHeadings"> 
      <xsl:variable name="beforeHeading" select="true()"/> 
      <xsl:apply-templates select="$topLevelHeadings"> 
       <xsl:with-param name="scope" select="count(//w:body/child::*)-1"/> 
      </xsl:apply-templates> 
     </xsl:when> 

     <xsl:otherwise> 
      <xsl:apply-templates select="//w:body/w:p[w:r[w:t]]"> 
       <xsl:with-param name="scope" select="count(//w:body/child::*)-1"/> 
      </xsl:apply-templates> 
     </xsl:otherwise> 
     </xsl:choose> 
    </Document> 
    </xsl:template> 

    <xsl:template match="w:body/w:p"> 
    <xsl:param name = "scope"/> 
    <xsl:variable name ="index" select="count(preceding-sibling::*)"/> 
    <xsl:if test = "$index &lt;= $scope"> 
     <Paragraph> 
     <xsl:attribute name="index"> 
      <xsl:value-of select="$index" /> 
     </xsl:attribute> 
     <xsl:apply-templates select=".//w:r/w:t"/> 
     </Paragraph> 
    </xsl:if> 
    </xsl:template> 



    <xsl:template match="w:t"> 
     <xsl:value-of select="."/> 
    </xsl:template> 

    <xsl:template match="w:body/w:p"> 
    <xsl:param name = "scope"/> 
    <xsl:variable name ="index" select="count(preceding-sibling::*)"/> 
    <xsl:if test = "$index &lt;= $scope"> 
     <Paragraph> 
     <xsl:attribute name="index"> 
      <xsl:value-of select="$index" /> 
     </xsl:attribute> 
     <xsl:apply-templates select=".//w:r/w:t"/> 
     </Paragraph> 
    </xsl:if> 
    </xsl:template> 

    <xsl:template name="get-para-index"> 
     <xsl:param name="node"/> 
     <xsl:value-of select="count($node/preceding-sibling::*)"/> 
    </xsl:template> 

    <xsl:template match="//w:body/w:p[w:pPr[w:pStyle]]"> 
    <xsl:param name = "scope"/> 

     <xsl:variable name="currIndex" select="count(preceding-sibling::*)"/>    

     <xsl:if test="$currIndex &lt;= $scope"> 

      <!-- Get current heading value --> 
      <xsl:variable name="currHeading" select="./w:pPr/w:pStyle/@w:val"/> 

      <!-- Heading tag --> 
      <xsl:element name="{$currHeading}"> 

      <!-- Get heading text --> 
      <Title> 
       <xsl:attribute name ="index"> 
       <xsl:value-of select="$currIndex"/> 
       </xsl:attribute> 
      <xsl:apply-templates select=".//w:r/w:t"/> 
      </Title> 

      <!-- Get the scope of paragraphs inside this heading --> 
      <xsl:variable name="nextHeading" select="following-sibling::w:p[w:pPr[w:pStyle[@w:val]]][1]"/> 

      <xsl:variable name="paraScope"> 
       <xsl:choose> 
        <xsl:when test="$nextHeading"> 
         <xsl:call-template name="get-para-index"> 
          <xsl:with-param name="node" select="$nextHeading"/> 
         </xsl:call-template> 
        </xsl:when> 
        <xsl:otherwise> 
         <xsl:value-of select="count(//w:body/child::*)"/> 
        </xsl:otherwise> 
       </xsl:choose> 
      </xsl:variable>      

      <!-- Handle paragraphs under this heading -->      
      <xsl:apply-templates select="following-sibling::w:p[//w:r and not(w:pPr[w:pStyle])]"> 
       <xsl:with-param name="scope" select="$paraScope"/> 
      </xsl:apply-templates> 

      <!-- Get the first heading after current node at the same level --> 
      <xsl:variable name="nextSibling" select="following-sibling::w:p[w:pPr[w:pStyle[@w:val=$currHeading]]][1]"/> 

      <!-- Get its index --> 
      <xsl:variable name="nextSiblingIndex"> 
       <xsl:choose> 
       <xsl:when test="$nextSibling">     
        <xsl:call-template name="get-para-index"> 
         <xsl:with-param name="node" select="$nextSibling"/> 
        </xsl:call-template> 
       </xsl:when> 
       <xsl:otherwise> 
       <xsl:value-of select="$scope"/> 
       </xsl:otherwise> 
       </xsl:choose> 
      </xsl:variable> 

      <!-- Set the scope of this node - this will be the smaller of nextSiblingIndex and current scope --> 
      <xsl:variable name="currScope"> 
       <xsl:choose> 
        <xsl:when test="$nextSiblingIndex &lt; $scope"> 
         <xsl:value-of select="$nextSiblingIndex"/> 
        </xsl:when> 
        <xsl:otherwise> 
         <xsl:value-of select="$scope"/> 
        </xsl:otherwise> 
       </xsl:choose> 
      </xsl:variable> 

      <xsl:variable name="nextHead" select="concat('Heading', number(substring-after($currHeading, 'Heading'))+1)"/>    

      <!-- Get a list of child nodes (headings) for the current node --> 
      <xsl:variable name="nextLevelHeadings" select="following-sibling::w:p[w:pPr[w:pStyle[@w:val=$nextHead]]]"/>    

      <!-- Apply recursively for next level headings within the scope --> 
      <xsl:apply-templates select="$nextLevelHeadings"> 
       <xsl:with-param name="scope" select="$currScope"/> 
      </xsl:apply-templates> 

      <!-- Close heading tag --> 
      </xsl:element> 
     </xsl:if> 
    </xsl:template> 

</xsl:stylesheet> 

Answer 1

Bir dönüşümde böyle bir davranışa ihtiyacınız olduğu ortaya çıkarsa, muhtemelen genel "tasarımını" değiştirmeniz gerekir anlamına gelir. Giriş belgenizi ve istediğiniz çıktıyı gösteren wihtout'u yapmaya çalıştığınız şeyi elde etmek de zordur.

Değişkenleri güncelleyemediğinizden, kodunuzu yeniden düşünmeniz gerekir. İsteğinize en yakın olan model (bu, hayal edebiliyorum) şunun gibi:

<xsl:template match="/"> 

     <xsl:variable name="topLevelHeadings" select="//w:body/w:p 
       [w:pPr[w:pStyle[@w:val='Heading1']]]"/> 

     <xsl:variable name="beforeHeading"> 
      <xsl:choose> 
       <xsl:when test="$topLevelHeadings"> 
        <xsl:value-of select="true()"/> 
       </xsl:when> 
       <xsl:otherwise> 
        <xsl:value-of select="false()"/> 
       </xsl:otherwise> 
      </xsl:choose> 
     </xsl:variable> 

     <!-- your choose staff --> 

     <!-- for instance --> 
     <xsl:if test="$beforeHeading='true'"> 
      <xsl:message>pass</xsl:message> 
     </xsl:if> 

    </xsl:template> 

Answer 2

Yapamazsınız. XSLT işlevsel bir programlama dilidir, bu nedenle değişkenler değiştirilemez. İstediğinizi yapmak için yinelemeyi kullanın.