如何在不删除 xslt 中的内容的情况下删除某些标记，并将整个内容 XML 作为输入传递到另一个模板

Question

我正在研究XSLT。

源 XML：

           <?xml version="1.0" encoding="iso-8859-1"?>
            <Content>
              <alertHeader>

                <ol xmlns="http://www.w3.org/1999/xhtml">
                  <li>
                    <strong>Review</strong>
                    your current available balance. It can be obtained 24 hours a day, 7 days a week through
                    <a href="/ALL_UNDER_123">Account Activity</a>
                    any 123 ATM or by calling
                    <a id="dynamicvariable" href="#" name="Customercare">[Customercare]</a>
                    at
                    <a id="dynamicvariable" href="#" name="contactNo">[contactNo]</a>
                    .
                  </li>
                  <li>
                    <strong>Take into consideration</strong>

                    <ul>
                      <li>Please get in touch with us</li>
                      <li>Please consider this as important info</li>
                    </ul>

                  </li>
                  <li>
                    <strong>Current</strong>
                    Statementt doesnot match the requirement
                    <a id="dynamicvariable" href="#" name="Actual acccount">[Actual acccount]</a>
                    ,plus
                    <a id="dynamicvariable" href="#" name="totalcharges">[totalcharges]</a>
                    Make u r response as positive.
                  </li>
                </ol>
                <p xmlns="http://www.w3.org/1999/xhtml"></p>
                <div xmlns="http://www.w3.org/1999/xshtml"></div>
                <span xmlns="http://www.w3.org/1999/xshtml"></span>

              </alertHeader>
            </Content>

我想编写一个 XSLT 来将标签 alertHeader 中的整个内容作为值传递给另一个模板。

我想修改此代码，如下所示。

                   1.Remove the tags   <p></p>, and <div></div>,<span></span> and <a></a>. I want to remove only tags but not the value of the tags. It should be there as it is.
                   2.Pass the content including tags to "Process" template.

所需输出：

          <aaa>
            <text>
            <ol xmlns="http://www.w3.org/1999/xhtml">
              <li>
                    <strong>Review</strong>
                    your current available balance. It can be obtained 24 hours a day, 7 days a week through
                <dynamicvariable name="Customercare"/>
                at
                <dynamicvariable name="contactNo"/>
                .
              </li>
              <li>
                    <strong>Take into consideration</strong>

                    <ul>
                      <li>Please get in touch with us</li>
                      <li>Please consider this as important info</li>
                    </ul>

                  </li>
              <li>
                <strong>Current</strong>
                    Statementt doesnot match the requirement
              </li>
            </ol>
            </text>
          </aaa>

当前 XSLT：

              <?xml version="1.0" encoding="utf-8"?>
              <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
                <xsl:output method="xml" indent="yes"/>

                <xsl:template match="alertHeader">
                  <xsl:call-template name="process">
                    <xsl:with-param name="text" select="." />

                  </xsl:call-template>
                </xsl:template>
                <xsl:template name="process">
                  <xsl:param name="text" />
                  <xsl:variable name="head" select="substring-before($text, '[')" />
                  <xsl:variable name="tag" select="substring-before(substring-after($text, '['), ']')" />
                  <xsl:variable name="tail" select="substring-after($text, ']')" />
                  <xsl:choose>
                    <xsl:when test="$head != '' and $tag != ''">
                      <xsl:value-of select="$head" />
                      <dynamicVariable name="{$tag}" />
                      <!-- recursive step: process the remainder of the string -->
                      <xsl:call-template name="process">
                        <xsl:with-param name="text" select="$tail" />
                      </xsl:call-template>
                    </xsl:when>
                    <xsl:otherwise>
                      <xsl:value-of select="$text" />
                    </xsl:otherwise>
                  </xsl:choose>
                </xsl:template>
              </xsl:stylesheet>

任何人都可以说出我的代码所需的所有更改。

谢谢。

Answer 1

无需对 XML 文档进行任何初始处理，然后将其传递给过程模板。从你的问题来看，你似乎有一个要求（你没有明确提到）将文本中的"标签"（例如表单"[Total_Fee]"）转换为动态变量元素。

因此，您需要做的是首先有一个模板来忽略您选择的节点，但继续匹配其中的元素和文本。

<xsl:template match="Content|alertHeader|xhtml:p|xshtml:div|xshtml:span|xhtml:a">
  <xsl:apply-templates select="@*|node()"/>
</xsl:template>

请注意，这里的复杂性在于您已经为某些节点定义了不同的命名空间（这些命名空间必须在 XSLT 文档中声明）。如果您有多个命名空间，还可以执行以下操作。

<xsl:template match="Content|alertHeader|*[local-name() = 'p']|*[local-name() = 'span']|*[local-name() = 'div']|*[local-name() = 'a']">

如果没有命名空间，您可以执行以下操作

<xsl:template match="Content|alertHeader|p|div|span|a">

接下来，可以组合命名过程模板以匹配 text（） 元素

<xsl:template match="text()" name="process">

这允许它匹配文本元素，并递归调用自身以在文本中查找标签。

这是完整的 XSLT

<xsl:stylesheet version="1.0" 
   xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
   xmlns:xhtml="http://www.w3.org/1999/xhtml" 
   xmlns:xshtml="http://www.w3.org/1999/xshtml"
   exclude-result-prefixes="xhtml xshtml">
   <xsl:output method="xml" indent="yes"/>
   <xsl:template match="Content|alertHeader|xhtml:p|xshtml:div|xshtml:span|xhtml:a">
      <xsl:apply-templates select="@*|node()"/>
   </xsl:template>
   <xsl:template match="text()" name="process">
      <xsl:param name="text" select="." />
      <xsl:choose>
         <xsl:when test="contains($text, ']') and contains($text, '[')">
            <xsl:value-of select="substring-before($text, '[')"/>
            <dynamicVariable name="{substring-before(substring-after($text, '['), ']')}"/>
            <xsl:call-template name="process">
               <xsl:with-param name="text" select="substring-after($text, ']')"/>
            </xsl:call-template>
         </xsl:when>
         <xsl:otherwise>
            <xsl:value-of select="$text"/>
         </xsl:otherwise>
      </xsl:choose>
   </xsl:template>
   <xsl:template match="@*|*">
      <xsl:copy>
         <xsl:apply-templates select="@*|node()"/>
      </xsl:copy>
   </xsl:template>
</xsl:stylesheet>

应用于 XML 时，输出如下

<ol xmlns="http://www.w3.org/1999/xhtml">
<li>
<strong>Review</strong>                     your current available balance. It can be obtained 24 hours a day, 7 days a week through                     Account Activity                     any Wells Fargo ATM or by calling                     <dynamicVariable name="Call_Center_Name" xmlns="" />                     at                     <dynamicVariable name="Phone_Number" xmlns="" />                     .                   </li>
<li>
<strong>Take into account</strong>
<ul>
<li>Your pending transactions and any additional transactions that have not yet been deducted from your available balance, such as checks you have written or upcoming scheduled automatic payments.</li>
<li>Any transactions that have been returned because you did not have enough money in your account at that time; they may be resubmitted for payment by the person or party who received the payment from you</li>
</ul>
</li>
<li>
<strong>Deposit</strong>                     enough money to establish and maintain a positive account balance. A deposit of at least                     <dynamicVariable name="Absolute_Available_Balance" xmlns="" />                     ,plus                     <dynamicVariable name="Total_Fee" xmlns="" />                     in fees, would have been required to make your account balance positive at the time we sent this notice.                   </li>
</ol>

Answer 2

xslt-1.0 中的问题是无法访问结果节点或节点集，因为没有 XPath 或函数或任何引用模板转换结果的东西。

你按原样称呼process是否必不可少？ 我这样做的方法是将process制作为一个模板，该模板只转换一个节点，然后从alertHeader下面的每个节点调用它，例如：

<xsl:template match="alertHeader">
  <!-- switch modes so we know we need to call process -->
  <xsl:apply-templates mode="callproc"/>
</xsl:template>
<xsl:template match="*" mode="callproc">
  <!-- call process on THIS node -->
  <xsl:call-template name="process">
    <xsl:with-param name="text" select="."/>
  </xsl:call-template>
  <!-- descend -->
  <xsl:apply-templates mode="callproc"/>
</xsl:template>
<!-- all the stuff that needs stripping -->
<xsl:template match="p|div|span|a" mode="callproc">
  <!-- call process on the text() portion -->
  <xsl:call-template name="process">
    <xsl:with-param name="text" select="text()"/>
  </xsl:call-template>
  <!-- no descent here -->
</xsl:template>

更新：没有process模板

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:xh="http://www.w3.org/1999/xhtml"
  xmlns:xsh="http://www.w3.org/1999/xshtml">
  <xsl:output method="xml" indent="yes"/>
  <xsl:template match="Content">
    <xsl:apply-templates/>
  </xsl:template>
  <xsl:template match="alertHeader">
    <xsl:element name="aaa">
      <xsl:element name="text">
        <!-- switch modes so we know we need to call process -->
        <xsl:apply-templates/>
      </xsl:element>
    </xsl:element>
  </xsl:template>
  <xsl:template match="*">
    <xsl:copy>
      <!-- descend -->
      <xsl:apply-templates/>
    </xsl:copy>
  </xsl:template>
  <!-- all the stuff that needs stripping -->
  <xsl:template match="xh:p|xh:div|xh:span|xsh:div|xsh:span">
    <xsl:apply-templates/>
  </xsl:template>
  <!-- was process -->
  <xsl:template match="xh:a[@name]">
    <xsl:element name="dynamicvariable" namespace="http://www.w3.org/1999/xhtml">
      <xsl:attribute name="name">
        <xsl:value-of select="@name"/>
      </xsl:attribute>
    </xsl:element>
  </xsl:template>
  <xsl:template match="xh:a"/>
  <xsl:template match="text()">
    <xsl:value-of select="."/>
  </xsl:template>
</xsl:stylesheet>

输出：

                <ol xmlns="http://www.w3.org/1999/xhtml">
            <li>
                <strong>Review</strong>
                your current available balance. It can be obtained 24 hours a day, 7 days a week through
                any Wells Fargo ATM or by calling
                <dynamicvariable name="Call_Center_Name"/>
                at
                <dynamicvariable name="Phone_Number"/>
                .
            </li>
            <li>
                <strong>Take into account</strong>

                <ul>
                    <li>Your pending transactions and any additional transactions that have not yet been deducted from your available balance, such as checks you have written or upcoming scheduled automatic payments.</li>
                    <li>Any transactions that have been returned because you did not have enough money in your account at that time; they may be resubmitted for payment by the person or party who received the payment from you</li>
                </ul>

            </li>
            <li>
                <strong>Deposit</strong>
                enough money to establish and maintain a positive account balance. A deposit of at least
                <dynamicvariable name="Absolute_Available_Balance"/>
                ,plus
                <dynamicvariable name="Total_Fee"/>
                in fees, would have been required to make your account balance positive at the time we sent this notice.
            </li>
                </ol>



    </text>
</aaa>