XSLT空格分隔并添加一个元素



我在xml和xslt 中有一个查询

下面是输入XML

<?xml version="1.0" encoding="UTF-8"?>    
<Employer>
    <Employees>
        <EmployeesDetails>van ind 26%</EmployeesDetails>
    </Employees>    
    <Employees>
        <EmployeesDetails>van ind</EmployeesDetails>
    </Employees>    
</Employer>

以上是我的输入文件

下面是我的输出文件

<?xml version="1.0" encoding="UTF-8"?>
<Employer>
    <Employees>
        <Names>van</Names>
        <Location>ind</Location>                
        <Weather>26</Weather>
    </Employees>
    <Employees>
        <Names>van</Names>
        <Location>ind</Location>
        <Weather>100</Weather>
    </Employees>
</Employer>

如何将下面的XSLT应用于上面的XML输入?

I。此XSLT2.0转换:

<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:template match="/*">
  <Employer>
    <xsl:apply-templates/>
  </Employer>
 </xsl:template>
 <xsl:template match="Employees">
  <xsl:variable name="vNames" select="tokenize(Names, ' ')"/>
  <xsl:variable name="vLoc" select="tokenize(Location, ' ')"/>
  <xsl:variable name="vWeather"
       select="tokenize(translate(Weather, '%', ' '), ' ')"/>
  <xsl:for-each select="$vNames">
    <xsl:variable name="vPos" select="position()" as="xs:integer"/>
    <Employees>
      <Names><xsl:sequence select="."/></Names>
      <Location>
        <xsl:sequence select="(lower-case($vLoc[$vPos]), 'Unknown')[1]"/>
      </Location>
      <Weather>
        <xsl:sequence select="($vWeather[$vPos], 100)[1]"/>
      </Weather>
    </Employees>
    </xsl:for-each>
 </xsl:template>
</xsl:stylesheet>

应用于所提供的XML文档时:

<Employer>
    <Employees>
        <Names>vel bel sel tel mel</Names>
        <Location>IND AUS ENG CAL JAP</Location>
        <Weather>26%</Weather>
    </Employees>
    <Employees>
        <Names>asd sadl asdsel tdddel dmdel</Names>
        <Location>IND AUS ENG CAL JAP</Location>
    </Employees>
</Employer>

生成所需的正确结果:

<Employer>
   <Employees>
      <Names>vel</Names>
      <Location>ind</Location>
      <Weather>26</Weather>
   </Employees>
   <Employees>
      <Names>bel</Names>
      <Location>aus</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>sel</Names>
      <Location>eng</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>tel</Names>
      <Location>cal</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>mel</Names>
      <Location>jap</Location>
      <Weather>100</Weather>
   </Employees>
      <Employees>
      <Names>asd</Names>
      <Location>ind</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>sadl</Names>
      <Location>aus</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>asdsel</Names>
      <Location>eng</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>tdddel</Names>
      <Location>cal</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>dmdel</Names>
      <Location>jap</Location>
      <Weather>100</Weather>
   </Employees>
</Employer>

注意

我做出了以下合理的假设:

  1. 您实际上想要的是100,而不是100%

  2. 您希望处理所有Employees,而不仅仅是该元素的第一次出现。

我还为任何丢失的位置添加了一个默认值,以防提供的位置数量小于提供的名称数量。


II。XSLT 1.0解决方案:

<xsl:stylesheet version="1.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
 xmlns:ext="http://exslt.org/common"
 xmlns:my="my:my" exclude-result-prefixes="ext my">
 <xsl:output omit-xml-declaration="yes" indent="yes"/>
 <xsl:strip-space elements="*"/>
 <my:defaults>
  <L>Unknown</L>
  <W>100</W>
 </my:defaults>
 <xsl:variable name="vUpper" select="'ABCDEFGHIJKLMNOPQRSTUVWXYZ'"/>
 <xsl:variable name="vLower" select="'abcdefghijklmnopqrstuvwxyz'"/>
 <xsl:variable name="vDefaults" select="document('')/*/my:defaults"/>
 <xsl:template match="/*">
  <Employer>
   <xsl:apply-templates/>
  </Employer>
 </xsl:template>
 <xsl:template match="Employees">
  <xsl:variable name="vrtfNames">
   <xsl:apply-templates select="Names"/>
  </xsl:variable>
  <xsl:variable name="vNames" select="ext:node-set($vrtfNames)/*"/>
  <xsl:variable name="vrtfLocs">
   <xsl:apply-templates select="Location"/>
  </xsl:variable>
  <xsl:variable name="vrtfWeather">
   <xsl:apply-templates select="Weather"/>
  </xsl:variable>
  <xsl:apply-templates select="$vNames">
   <xsl:with-param name="pLocs" select="ext:node-set($vrtfLocs)/*"/>
   <xsl:with-param name="pWeather" select="ext:node-set($vrtfWeather)/*"/>
  </xsl:apply-templates>
 </xsl:template>
 <xsl:template match="s" priority="3">
  <xsl:param name="pLocs"/>
  <xsl:param name="pWeather"/>
  <xsl:variable name="vPos" select="position()"/>
  <Employees>
   <Names><xsl:value-of select="."/></Names>
   <Location>
     <xsl:value-of select=
       "translate($pLocs[position() = $vPos]
                   | $vDefaults[not($pLocs[position() = $vPos])]/L,
                  $vUpper, $vLower)"/>
   </Location>
   <Weather>
     <xsl:value-of select=
       "$pWeather[position() = $vPos]
      | $vDefaults[not($pWeather[position() = $vPos])]/W"/>
   </Weather>
  </Employees>
 </xsl:template>
 <xsl:template match="Weather">
  <xsl:call-template name="tokenize">
    <xsl:with-param name="pText" select="translate(., '%', ' ')"/>
  </xsl:call-template>
 </xsl:template>
 <xsl:template match="Employees/*/text()" name="tokenize">
  <xsl:param name="pText" select="."/>
  <xsl:variable name="vText" select="normalize-space($pText)"/>
  <xsl:if test="$vText">
   <s>
    <xsl:value-of select="substring-before(concat($vText, ' '), ' ')"/>
   </s>
   <xsl:call-template name="tokenize">
    <xsl:with-param name="pText" select="substring-after($vText, ' ')"/>
   </xsl:call-template>
  </xsl:if>
 </xsl:template>
</xsl:stylesheet>

当此转换应用于所提供的XML文档(如上)时,同样会产生所需的正确结果

<Employer>
   <Employees>
      <Names>vel</Names>
      <Location>ind</Location>
      <Weather>26</Weather>
   </Employees>
   <Employees>
      <Names>bel</Names>
      <Location>aus</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>sel</Names>
      <Location>eng</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>tel</Names>
      <Location>cal</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>mel</Names>
      <Location>jap</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>asd</Names>
      <Location>ind</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>sadl</Names>
      <Location>aus</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>asdsel</Names>
      <Location>eng</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>tdddel</Names>
      <Location>cal</Location>
      <Weather>100</Weather>
   </Employees>
   <Employees>
      <Names>dmdel</Names>
      <Location>jap</Location>
      <Weather>100</Weather>
   </Employees>
</Employer>

注意

  1. 实现了与XSLT2.0转换基本相同的逻辑。

  2. 由于XPath 1.0没有tokenizelower-case()函数,并且在XPath 1.0数据模型中没有序列的概念,因此这些函数(分别)使用标记化模板、使用translate()函数转换为小写以及使用包含天气和位置默认值的元素来实现。

您的问题在某些关键领域很模糊。例如,您似乎指出,如果<Employees>节点集没有<weather>节点,那么它应该得到一个值为100%的节点;也就是说,您的预期输出似乎不一致地应用了该逻辑。所需的<Location>结果节点将从大写转换为小写。此外,您的输出似乎完全忽略了源XML中的第二个<Employees>节点集。

假设一下,这里是一个使用EXSLT的XSLT1.0解决方案。如果这不是你想要的,请更新你的问题,使其更具体,我会尽力适应。

当此XSLT:

<?xml version="1.0"?>
<xsl:stylesheet
  xmlns:exsl="http://exslt.org/common"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  exclude-result-prefixes="exsl" 
  version="1.0">
  <xsl:output omit-xml-declaration="no" indent="yes"/>
  <xsl:strip-space elements="*"/>
  <xsl:template match="node()|@*">
    <xsl:copy>
      <xsl:apply-templates select="node()|@*"/>
    </xsl:copy>
  </xsl:template>
  <xsl:template match="Employees">
    <xsl:variable name="vNames">
      <xsl:call-template name="tokenize">
        <xsl:with-param name="text" select="Names/text()"/>
      </xsl:call-template>
    </xsl:variable>
    <xsl:variable name="vLocations">
      <xsl:call-template name="tokenize">
        <xsl:with-param name="text" select="Location/text()"/>
      </xsl:call-template>
    </xsl:variable>
    <xsl:apply-templates select="exsl:node-set($vNames)/token">
      <xsl:with-param name="pLocation"
          select="exsl:node-set($vLocations)/token"/>
      <xsl:with-param name="pWeather" select="Weather"/>
    </xsl:apply-templates>
  </xsl:template>
  <xsl:template match="token">
    <xsl:param name="pLocation"/>
    <xsl:param name="pWeather"/>
    <xsl:variable name="vPosition" select="position()"/>
    <Employees>
      <Names>
        <xsl:value-of select="."/>
      </Names>
      <Location>
        <xsl:value-of select="translate($pLocation[$vPosition],
            'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz')"/>
      </Location>
      <xsl:choose>
        <xsl:when test="$pWeather != ''">
          <xsl:apply-templates select="$pWeather"/>
        </xsl:when>
        <xsl:otherwise>
          <Weather>100%</Weather>
        </xsl:otherwise>
      </xsl:choose>
    </Employees>
  </xsl:template>
  <xsl:template name="tokenize">
    <xsl:param name="text"/>
    <xsl:param name="delimiter" select="' '"/>
    <xsl:choose>
      <xsl:when test="contains($text,$delimiter)">
        <xsl:element name="token">
          <xsl:value-of select="substring-before($text,$delimiter)"/>
        </xsl:element>
        <xsl:call-template name="tokenize">
          <xsl:with-param name="text"
              select="substring-after($text,$delimiter)"/>
          <xsl:with-param name="delimiter" select="$delimiter"/>
        </xsl:call-template>
      </xsl:when>
      <xsl:when test="$text">
        <xsl:element name="token">
          <xsl:value-of select="$text"/>
        </xsl:element>
      </xsl:when>
    </xsl:choose>
  </xsl:template>
</xsl:stylesheet>

。。。应用于此XML:

<?xml version="1.0"?>
<Employer>
  <Employees>
    <Names>vel bel sel tel mel</Names>
    <Location>IND AUS ENG CAL JAP</Location>
    <Weather>26%</Weather>
  </Employees>
  <Employees>
    <Names>asd sadl asdsel tdddel dmdel</Names>
    <Location>IND AUS ENG CAL JAP</Location>
  </Employees>
</Employer>

。。。产生所需的(?)结果:

<?xml version="1.0" encoding="UTF-8"?>
<Employer>
  <Employees>
    <Names>vel</Names>
    <Location>ind</Location>
    <Weather>26%</Weather>
  </Employees>
  <Employees>
    <Names>bel</Names>
    <Location>aus</Location>
    <Weather>26%</Weather>
  </Employees>
  <Employees>
    <Names>sel</Names>
    <Location>eng</Location>
    <Weather>26%</Weather>
  </Employees>
  <Employees>
    <Names>tel</Names>
    <Location>cal</Location>
    <Weather>26%</Weather>
  </Employees>
  <Employees>
    <Names>mel</Names>
    <Location>jap</Location>
    <Weather>26%</Weather>
  </Employees>
  <Employees>
    <Names>asd</Names>
    <Location>ind</Location>
    <Weather>100%</Weather>
  </Employees>
  <Employees>
    <Names>sadl</Names>
    <Location>aus</Location>
    <Weather>100%</Weather>
  </Employees>
  <Employees>
    <Names>asdsel</Names>
    <Location>eng</Location>
    <Weather>100%</Weather>
  </Employees>
  <Employees>
    <Names>tdddel</Names>
    <Location>cal</Location>
    <Weather>100%</Weather>
  </Employees>
  <Employees>
    <Names>dmdel</Names>
    <Location>jap</Location>
    <Weather>100%</Weather>
  </Employees>
</Employer>

解释:

  1. 第一个模板-标识模板-按原样复制所有元素和属性
  2. 第二个模板与<Employee>元素匹配,它运行一个特殊的tokenize模板,其任务是将空间分隔的字符串拆分为结果树片段。为了方便起见,这些片段被保存到变量中
  3. 第三个模板匹配名为token的所有元素。这些是由EXSLT生成的,它将结果树片段转换为由<token>元素组成的节点集。对于其中的每一个,我们提取必要的元素值来创建<Names><Location>。该模板还包含确定<weather>元素需要哪个值所必需的逻辑

相关内容

  • 没有找到相关文章

最新更新