numbering a table
Question
The output should be html, use xsl to output the table of contents, following is the xml
<book title="D">
<author>
<name>abc</name>
</author>
<chapter title="chapter1">
<section title="section1.1"/>
<section title="section1.2">
<section title="section1.2.1"/>
<section title="section1.2.2"/>
</section>
<section title="section1.3">
<section title="section1.3.1"/>
</section>
</chapter>
<chapter title="chapter2"/>
</book>
the result is html, as this:
<body>
<h2>D</h2>
<p>
by abc
</p>
<h3>Table of contents</h3>
<ul>
<li>[1]chapter1
<ul>
<li>[1.1]section1.1</li>
<li>[1.2]section1.2
<ul>
<li>[1.2.1]section1.2.1</li>
<li>[1.2.2]section1.2.2</li>
</ul>
</li>
<li>[1.3]section1.3
<ul>
<li>[1.3.1]section1.3.1</li>
</ul>
</li>
</ul>
</li>
<li>[2]chapter2</li>
</ul>
</body>
2 answers
solution1
1 ACCPTED 2011-05-11 16:21:19
UPDATE : The OP changed his provided XML after this solution was posted. The solution below produces the wanted, correct numbering. I am not updating it in order to catch-up with the OP's update, because I cannot spend all my time waiting when every next update will happen.
The power of using <xsl:number> is that no matter what update is done to the string values of the titles, the produced numbering continues to be correct. :)
This transformation :
<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:template match="node()|@*">
<xsl:copy>
<xsl:apply-templates select="node()|@*"/>
</xsl:copy>
</xsl:template>
<xsl:template match="book">
<body>
<xsl:apply-templates select="node()|@*"/>
</body>
</xsl:template>
<xsl:template match="book/@title">
<h2>
<xsl:value-of select="."/>
</h2>
</xsl:template>
<xsl:template match="author">
<p>by
<xsl:value-of select="name"/>
</p>
<h3>Table of Contents</h3>
<ul>
<xsl:apply-templates mode="TC"
select="following-sibling::*"/>
</ul>
</xsl:template>
<xsl:template mode="TC"
match="chapter[section]|section[section]">
<li>
[<xsl:number level="multiple"
count="chapter|section"/>] <xsl:text/>
<xsl:value-of select="@title"/>
<ul>
<xsl:apply-templates mode="TC"/>
</ul>
</li>
</xsl:template>
<xsl:template mode="TC" match=
"chapter[not(section)]|section[not(section)]">
<li>
[<xsl:number level="multiple"
count="chapter|section"/>] <xsl:text/>
<xsl:value-of select="@title"/>
</li>
</xsl:template>
<xsl:template match="chapter|section"/>
</xsl:stylesheet>
when applied on the provided XML document :
<book title="D">
<author>
<name>abc</name>
</author>
<chapter title="chapter1">
<section title="section1.1"/>
<section title="section1.2">
<section title="section1.2.1"/>
<section title="section1.2.2"/></section>
<section title="section3">
<section title="section3.1"/></section>
</chapter>
<chapter title="chapter2"/>
</book>
produces the wanted, correct result :
<body>
<h2>D</h2>
<p>by
abc</p>
<h3>Table of Contents</h3>
<ul>
<li>
[1] chapter1<ul>
<li>
[1.1] section1.1</li>
<li>
[1.2] section1.2<ul>
<li>
[1.2.1] section1.2.1</li>
<li>
[1.2.2] section1.2.2</li>
</ul>
</li>
<li>
[1.3] section3<ul>
<li>
[1.3.1] section3.1</li>
</ul>
</li>
</ul>
</li>
<li>
[2] chapter2</li>
</ul>
</body>
and it is displayed by the browser as :
D
by abc
Table of Contents
- [1] chapter1
- [1.1] section1.1
- [1.2] section1.2
- [1.2.1] section1.2.1
- [1.2.2] section1.2.2
- [1.3] section3
- [1.3.1] section3.1
- [2] chapter2
Explanation :
Use of <xsl:number> with level="multiple" counting both chapter and section .
solution2
0 2011-05-10 19:33:12
This stylesheet:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="book">
<body>
<h2><xsl:apply-templates select="@title" /></h2>
<p>by <xsl:apply-templates select="author/name" /></p>
<h3>Table of contents</h3>
<ul>
<xsl:apply-templates select="chapter" />
</ul>
</body>
</xsl:template>
<xsl:template match="chapter|section">
<li><xsl:call-template name="extract-num" /></li>
</xsl:template>
<xsl:template match="chapter[child::*]|section[child::*]">
<li>
<xsl:call-template name="extract-num" />
<ul>
<xsl:apply-templates />
</ul>
</li>
</xsl:template>
<xsl:template name="extract-num">
<xsl:value-of select="concat('[', substring(@title, 8), ']', @title)" />
</xsl:template>
</xsl:stylesheet>
On this input:
<book title="D">
<author>
<name>abc</name>
</author>
<chapter title="chapter1">
<section title="section1.1" />
<section title="section1.2">
<section title="section1.2.1" />
<section title="section1.2.2" />
</section>
<section title="section3">
<section title="section3.1" />
</section>
</chapter>
<chapter title="chapter2" />
</book>
Produces:
<body>
<h2>D</h2>
<p>by abc</p>
<h3>Table of contents</h3>
<ul>
<li>[1]chapter1
<ul>
<li>[1.1]section1.1</li>
<li>[1.2]section1.2
<ul>
<li>[1.2.1]section1.2.1</li>
<li>[1.2.2]section1.2.2</li>
</ul>
</li>
<li>[3]section3
<ul>
<li>[3.1]section3.1</li>
</ul>
</li>
</ul>
</li>
<li>[2]chapter2</li>
</ul>
</body>
Note: Whitespace adjusted for formatting. If you actually need the exact whitespace you provide in your requested output, then you'll need to modify accordingly.
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