Question

<?xml version="1.0"?>
<catalog>
   <book id="bk101">
      <author>Gambardella, Matthew</author>
      <title>XML Developer's Guide</title>
      <genre>Computer</genre>
      <price>44.95</price>
      <publish_date>2000-10-01</publish_date>
      <description>An in-depth look at creating applications 
      with XML.</description>
   </book>
   <book id="bk102">
      <author>Ralls, Kim</author>
      <title>Midnight Rain</title>
      <genre>Fantasy</genre>
      <price>5.95</price>
      <publish_date>2000-12-16</publish_date>
      <description>A former architect battles corporate zombies, 
      an evil sorceress, and her own childhood to become queen 
      of the world.</description>
   </book>
</catalog>

和两个文件，每行都有要搜索的值，（file1）和替换文件（file2），

看起来像这样

文件1：

  XML Developer's Guide
    Midnight Rain
...

和file2（带替换）：

self1. replacement title 1
self2. replacement title 2
...

我需要一个xslt文件的方法，

将所有匹配的标题元素替换为.和空格

在xml文件<hold>中创建一个新元素，该元素的信息位于.和空格之前，因此结果应如下所示

< / LI>

输出xml文件：

<?xml version="1.0"?>
<catalog>
   <book id="bk101">
      <author>Gambardella, Matthew</author>
      <title>replacement title 1</title>
      <hold>self1</hold>
      <genre>Computer</genre>
      <price>44.95</price>
      <publish_date>2000-10-01</publish_date>
      <description>An in-depth look at creating applications 
      with XML.</description>
   </book>
   <book id="bk102">
      <author>Ralls, Kim</author>
      <title>replacement title 2</title>
      <hold>self2</hold>
      <genre>Fantasy</genre>
      <price>5.95</price>
      <publish_date>2000-12-16</publish_date>
      <description>A former architect battles corporate zombies, 
      an evil sorceress, and her own childhood to become queen 
      of the world.</description>
   </book>
</catalog>

Answer 1

让我们首先假设您已将参数文件转换为XML格式

<changes>
  <change id="self1" from="XML Developer's Guide" to="replacement title 1"/>
  <change id="self2" from="Midnight Rain" to="replacement title 2"/>
</changes>

这个XML是全局变量$ changes。

您现在可以使用身份模板和规则来实现转换：

<xsl:template match="title">
   <xsl:variable name="replacement" select="$changes/change[@from=current()]"/>
   <xsl:choose>
     <xsl:when test="$replacement">
       <title><xsl:value-of select="$replacement/@to"/></title>
       <hold><xsl:value-of select="$replacement/@id"/></hold>
     </xsl:when>
     <xsl:otherwise>
       <xsl:copy-of select="."/>
     </xsl:otherwise>
  </xsl:choose>
</xsl:template>

剩下的就是构造参数文件的XML表示：

<xsl:variable name="$replacements">
  <xsl:variable name="f1" select="tokenize(unparsed-text('file1.txt'), '\r?\n')"/>
  <xsl:variable name="f2" select="tokenize(unparsed-text('file2.txt'), '\r?\n')"/>
  <changes>
    <xsl:for-each select="1 to count($f1)">
      <xsl:variable name="i" select="."/> 
      <change id="{substring-before($f2[$i], '.')}"
              from="{normalize-space($f1[$i])}"
              to="{normalize-space(substring-after($f2[$i], '.'))}"/>
    </xsl:for-each>
  </changes>
</xsl:variable>

在XSLT的帮助下进行XML转换

1 个答案: