將某些選擇節點的兄弟節點移動到一個新的父節點中

Question

我在這裏做了一些搜索，發現了一些與我的問題有關的問題，但是我仍然遇到了麻煩......（希望我沒關係，米增加一個新的問題，而不是評論對現有..）

<?xml version="1.0"?> 
<section> 
    <title>Main Section</title> 
    <para>Here is some text that is a child of a main section.</para> 
    <para>Some more text.</para> 
    <para>When a section has subsections, it should not have loose paragraphs before the first sub section. Those loose paras should be placed inside a comment element.</para> 
    <section> 
     <title>This is my subsection</title> 
     <para>Text that is inside of the sub-section</para> 
     <para>And some more sub section text.</para> 
    </section> 
</section> 

我想有/節/第置於一個新創建的註釋節點內，像這樣：

<?xml version="1.0"?> 
<section> 
    <title>Main Section</title> 
    <comment> 
     <para>Here is some text that is a child of a main section.</para> 
     <para>Some more text.</para> 
     <para>When a section has subsections, it should not have loose paragraphs before the first sub section. Those loose paras should be placed inside a comment element.</para> 
    </comment> 
    <section> 
     <title>This is my subsection</title> 
     <para>Text that is inside of the sub-section</para> 
     <para>And some more sub section text.</para> 
    </section> 
</section> 

我嘗試了一些我發現搜索stackoverflow的建議，最接近的是here.

這是我使用的樣式表：

<?xml version='1.0'?> 
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> 
<xsl:output method="xml"/> 


<xsl:template match="node()|@*" name="identity"> 
    <xsl:copy> 
     <xsl:apply-templates select="node()|@*"/> 
    </xsl:copy> 
</xsl:template> 


<!-- paras that are children of a section that has direct para children and dircect section children --> 
<xsl:template match="section[para][section]/para[1]"> 
    <comment> 
     <xsl:apply-templates select="../para" mode="commentPara"/> 

    </comment> 
</xsl:template> 

<xsl:template match="*" mode="commentPara"> 
    <xsl:call-template name="identity"/> 
</xsl:template> 

<xsl:template match="section[para][section]/para"/> 


</xsl:stylesheet> 

它輸出這樣的：

<?xml version='1.0' ?> 
<section> 
    <title>Main Section</title> 



    <section> 
     <title>This is my subsection</title> 
     <para>Text that is inside of the sub-section</para> 
     <para>And some more sub section text.</para> 
    </section> 
</section> 

簡單地刪除我想在一個註釋標記來包裝段。我試着基本上一行一行地通過問題中的樣式錶鏈接到...任何想法？ 謝謝， bp

Answer 1

這就是分組鄰接para元素。

問題出在Conflict Resolution for Template Rules：因爲兩個para匹配規則具有相同的導入優先級和相同的計算優先級，錯誤恢復機制可能導致應用最後一個。

你需要像「第一para兒」規則明確定義@priority：

<xsl:template match="section[para][section]/para[1]" priority="1"> 
</ 

有了這樣的修改，輸出爲：

<?xml version="1.0" encoding="UTF-16"?> 
<section> 
    <title>Main Section</title> 
    <comment> 
     <para>Here is some text that is a child of a main section.</para> 
     <para>Some more text.</para> 
     <para>When a section has subsections, it should not have loose paragraphs before the first sub section. Those loose paras should be placed inside a comment element.</para> 
    </comment> 
    <section> 
     <title>This is my subsection</title> 
     <para>Text that is inside of the sub-section</para> 
     <para>And some more sub section text.</para> 
    </section> 
</section> 

Answer 2

我想這樣做：

<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> 
<xsl:output omit-xml-declaration="yes" indent="yes"/> 
<xsl:strip-space elements="*"/> 

<xsl:key name="kPreceding" match="para" 
    use="generate-id(following-sibling::section[1])"/> 

<xsl:template match="node()|@*" name="identity"> 
    <xsl:copy> 
    <xsl:apply-templates select="node()|@*"/> 
    </xsl:copy> 
</xsl:template> 

<xsl:template match="section[preceding-sibling::para]"> 
    <comment> 
    <xsl:apply-templates mode="copy" 
     select="key('kPreceding', generate-id())"/> 
    </comment> 

    <xsl:call-template name="identity"/> 
</xsl:template> 

<xsl:template match= 
    "para[following-sibling::section]"/> 

<xsl:template match="para" mode="copy"> 
    <xsl:call-template name="identity"/> 
</xsl:template> 
</xsl:stylesheet> 

當該變換被應用所提供的XML文檔：

<section> 
    <title>Main Section</title> 
    <para>Here is some text that is a child of a main section.</para> 
    <para>Some more text.</para> 
    <para>When a section has subsections, it should not have loose paragraphs before the first sub section. Those loose paras should be placed inside a comment element.</para> 
    <section> 
     <title>This is my subsection</title> 
     <para>Text that is inside of the sub-section</para> 
     <para>And some more sub section text.</para> 
    </section> 
</section> 

有用，正確的結果產生：

<section> 
    <title>Main Section</title> 
    <comment> 
     <para>Here is some text that is a child of a main section.</para> 
     <para>Some more text.</para> 
     <para>When a section has subsections, it should not have loose paragraphs before the first sub section. Those loose paras should be placed inside a comment element.</para> 
    </comment> 
    <section> 
     <title>This is my subsection</title> 
     <para>Text that is inside of the sub-section</para> 
     <para>And some more sub section text.</para> 
    </section> 
</section> 

說明：

1. 的身份規則（模板）每n次複製一次頌歌「原樣」。

2. 爲section的首要模板具有前述兄弟（一個或多個）包裹para所有這樣的兄弟姐妹與comment元件，然後調用本身的恆等變換。

3. 爲了方便起見，我們定義了一個鍵，該鍵匹配section元素前面的所有para元素與給定的generate-id()。

4. 具有以下兄弟section的para元素通過覆蓋模板排除在身份規則的操作之外，該操作不會執行任何操作。

5. 最後，這樣para元素，當包裝comment內被輸出在模式copy，這只是簡單地調用身份規則做複製進行處理。