xslt 中的条件检查 [英] condition checking in xslt

问题描述

我上一个问题中的一个小更新已经@Dimetre 回答了

A Little update in my previous question already @Dimetre answered that

链接

输入 XML

<tutorial>
<lessons>
   <lesson>
     chapter Bat 20 
</lesson>
    <lesson>
        chapter Pen Ball 10~ 
    </lesson>
    <lesson>
        chapter Book 
    </lesson>
    <lesson>
        note lesson
    </lesson>
 <lessons1>
    <lesson>
        chapter Pencil 10
    </lesson>
    <lesson>
        description page
    </lesson>
    <lesson>
        chapter Car Tank 25
    </lesson>
</lessons1>
</lessons>

输出将是

<Geography>


<historical>
  <social>
     <toc1>
        <toc>
           <chapter>chapter</chapter>
           <unit>Bat</unit>
           <pages>20</pages>
        </toc>
        <toc>
           <chapter>chapter</chapter>
           <unit>Pen Ball</unit>
           <pages>10</pages>
        </toc>
        <toc>
           <chapter>chapter</chapter>
           <unit>Book</unit>
           <pages>10</pages>
        </toc>
        <sample>
           <original>note lesson</original>
        </sample>
     </toc1>
     <toc2>
        <toc>
           <chapter>chapter</chapter>
           <unit>Pencil</unit>
           <pages>10</pages>
        </toc>
        <sample>
           <original>description page</original>
        </sample>
        <toc>
           <chapter>chapter</chapter>
           <unit>Car Tank</unit>
           <pages>25</pages>
        </toc>
     </toc2>
  </social>

在输入 XML 中，我已经为示例编写了两个课程(课程，第 1 课)，但实际上我有 n 节课.我想我要求更多，但我正在同时学习.

Here in input XML I have for sample i have written two Lessons (lesson, Lesson1) actually but actually it my have n number of lessons. I think I am asking more but i am learning simultaneously.

请帮帮我&指导我

Please help me & Guide me

提前致谢

问候卡西克

推荐答案

这种转变:

<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
          xmlns:xs="http://www.w3.org/2001/XMLSchema" exclude-result-prefixes="xs">
            <xsl:output omit-xml-declaration="yes" indent="yes"/>
            <xsl:strip-space elements="*"/>

         <xsl:template match="tutorial">
            <Geography>
              <historical>
                <social>
                     <xsl:apply-templates select=
                     "*[starts-with(name(),'lessons')]"/>
                </social>
              </historical>
            </Geography>
         </xsl:template>

         <xsl:template match="*[starts-with(name(), 'lessons')]">
          <xsl:variable name="vPos" select="position()"/>

          <xsl:element name="toc{$vPos}">
           <xsl:apply-templates/>
          </xsl:element>

         </xsl:template>

         <xsl:template match="lesson[starts-with(normalize-space(), 'chapter')]">
          <xsl:variable name="vNorm" select=
                         "translate(normalize-space(), '~', '')"/>
          <xsl:variable name="vAtUnit" select=
                         "substring-after($vNorm, 'chapter')"/>

          <xsl:variable name="vUnit" select=
          "replace($vAtUnit, '([^0123456789]+)(\d*)', '$1')"/>

          <xsl:variable name="vLastPart" as="xs:string" select=
           "substring-after($vAtUnit, $vUnit)"/>

          <xsl:variable name="vNum"
            select="concat($vLastPart, '10'[not($vLastPart)])"/>

          <toc>
            <chapter>chapter</chapter>
            <unit><xsl:value-of select="normalize-space($vUnit)"/></unit>
            <pages><xsl:value-of select="$vNum"/></pages>
          </toc>
         </xsl:template>

         <xsl:template match="lesson">
           <toc>
               <sample>
                 <original><xsl:value-of select="normalize-space()"/></original>
               </sample>
           </toc>
         </xsl:template>
</xsl:stylesheet>

当应用于提供的 XML 文档时(更正为没有将 lessons1 嵌套在 lessons 中):

when applied on the provided XML document (corrected not to have lessons1 nested in lessons):

<tutorial>
    <lessons>
       <lesson>
         chapter Bat 20
       </lesson>
       <lesson>
            chapter Pen Ball 10~
       </lesson>
       <lesson>
            chapter Book
       </lesson>
       <lesson>
            note lesson
       </lesson>
    </lessons>
    <lessons1>
        <lesson>
            chapter Pencil 10
        </lesson>
        <lesson>
            description page
        </lesson>
        <lesson>
            chapter Car Tank 25
        </lesson>
    </lessons1>
</tutorial>

产生想要的、正确的结果:

<Geography>
   <historical>
      <social>
         <toc1>
            <toc>
               <chapter>chapter</chapter>
               <unit>Bat</unit>
               <pages>20</pages>
            </toc>
            <toc>
               <chapter>chapter</chapter>
               <unit>Pen Ball</unit>
               <pages>10</pages>
            </toc>
            <toc>
               <chapter>chapter</chapter>
               <unit>Book</unit>
               <pages>10</pages>
            </toc>
            <toc>
               <sample>
                  <original>note lesson</original>
               </sample>
            </toc>
         </toc1>
         <toc2>
            <toc>
               <chapter>chapter</chapter>
               <unit>Pencil</unit>
               <pages>10</pages>
            </toc>
            <toc>
               <sample>
                  <original>description page</original>
               </sample>
            </toc>
            <toc>
               <chapter>chapter</chapter>
               <unit>Car Tank</unit>
               <pages>25</pages>
            </toc>
         </toc2>
      </social>
   </historical>
</Geography>

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