|
Subject: Re: [xsl] Nodes get new IDs in function? From: "Imsieke, Gerrit, le-tex" <gerrit.imsieke@xxxxxxxxx> Date: Fri, 09 Apr 2010 03:29:19 +0200 |
XSLT: ======8<---------------------------------- <?xml version="1.0" encoding="utf-8"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; xmlns:xs="http://www.w3.org/2001/XMLSchema"; xmlns:my="URN:my" version="2.0" exclude-result-prefixes="my xs" >
<xsl:template match="/">
<xsl:apply-templates/>
</xsl:template> <xsl:template match="body">
<xsl:copy>
<xsl:sequence select="my:hierarchize(*,1)" />
</xsl:copy>
</xsl:template> <xsl:function name="my:hierarchize" as="element(*)*">
<xsl:param name="nodes" as="element(*)*" />
<xsl:param name="outline-level" as="xs:double?" />
<xsl:choose>
<xsl:when test="empty($outline-level)">
<!-- no output for non-headings, as we are creating the ToC: -->
<!-- <xsl:sequence select="$nodes" /> -->
</xsl:when>
<xsl:otherwise>
<ul>
<xsl:for-each-group select="$nodes"
group-starting-with="*[matches(name(), '^h\d$')]
[my:hlevel(.) = $outline-level]">
<xsl:choose>
<xsl:when test="my:hlevel(current-group()[1])
= $outline-level">
<li class="level{$outline-level}">
<p>
<xsl:copy-of select="current-group()[1]/node()" />
</p>
<xsl:variable
name="new-nodes"
select="current-group()[position() gt 1]"
as="node()*" />
<xsl:sequence select="my:hierarchize(
$new-nodes,
min(
for $n in $new-nodes[
matches(name(), '^h\d$')
]
return my:hlevel($n)
)
)" />
</li>
</xsl:when>
<xsl:otherwise>
<xsl:sequence select="my:hierarchize(
current-group(),
min(
for $n in current-group()[
matches(name(), '^h\d$')
]
return my:hlevel($n)
)
)" />
</xsl:otherwise>
</xsl:choose>
</xsl:for-each-group>
</ul>
</xsl:otherwise>
</xsl:choose>
</xsl:function> <xsl:function name="my:hlevel" as="xs:double">
<xsl:param name="elt" as="element(*)" />
<xsl:value-of select="number(replace(name($elt), '^h(\d)$', '$1'))" />
</xsl:function></xsl:stylesheet> ======8<----------------------------------
Input: ======8<---------------------------------- <?xml version="1.0" encoding="utf-8"?> <body> <h1 class="Heading_20_1 ">Free Culture - How Big Media Uses Technology and the Law to Lock Down Culture and Control Creativity,Lawrence Lessig</h1> <h4 class="Heading_20_4 ">Attribution</h4> <p>...</p> <h3 class="Heading_20_3 ">Preface</h3> <h4 class="Heading_20_4 ">[Preface]</h4> <p>...</p> <h3 class="Heading_20_3 ">INTRODUCTION</h3> <p>...</p> </body> ======8<----------------------------------
Output: ======8<---------------------------------- <?xml version="1.0" encoding="UTF-8"?> <body> <ul> <li class="level1"> <p>Free Culture - How Big Media Uses Technology and the Law to Lock Down Culture and Control Creativity,Lawrence Lessig</p> <ul> <ul> <li class="level4"> <p>Attribution</p> </li> </ul> <li class="level3"> <p>Preface</p> <ul> <li class="level4"> <p>[Preface]</p> </li> </ul> </li> <li class="level3"> <p>INTRODUCTION</p> </li> </ul> </li> </ul> </body> ======8<----------------------------------
Hey list,
still struggling with the level gap-infested ToC, but I think I introduced a couple of functions, I'm now on the finish line:
<xsl:function name="o2e:heading-level" as="xs:integer"> <xsl:param name="heading" as="element()"/> <xsl:value-of select="number(substring-after(local-name($heading), 'h'))"/> </xsl:function>
<xsl:function name="o2e:parent-heading" as="element()*"> <xsl:param name="heading" as="element()"/> <xsl:copy-of select="$heading/preceding-sibling::h:*[self::h:h1 or self::h:h2 or self::h:h3 or self::h:h4 or self::h:h5 or self::h:h6][o2e:heading-level(.)< o2e:heading-level($heading)][1]"/> </xsl:function>
The problem is, it seems that nodes returned from the parent-heading() function get different IDs than identical nodes in the source document. Is this the specified behavior, i.e. functions construct new nodes, which get new IDs?
For that reason this expression won't work:
following-sibling::h:*[self::h:h1 or self::h:h2 or self::h:h3 or self::h:h4 or self::h:h5 or self::h:h6][o2e:parent-heading(.) is current()]
Because the IDs won't match in the 'is' operator, even though I can see the nodes are (look) identical. If I change the operator to '=' it starts giving the expected results, but it is not good enough, as there can be several heading elements with the same string value. Is it possible to retain the original ID value somehow?
As for the source document, it could be any XHTML with any number and order of headings, for example:
<h1 class="Heading_20_1 ">Free Culture - How Big Media Uses Technology and the Law to Lock Down Culture and Control Creativity,Lawrence Lessig</h1> <h4 class="Heading_20_4 ">Attribution</h4> <p>...</p> <h3 class="Heading_20_3 ">Preface</h3> <h4 class="Heading_20_4 ">[Preface]</h4> <p>...</p> <h3 class="Heading_20_3 ">INTRODUCTION</h3> <p>...</p>
and so on
Martynas odt2epub.com
-- Gerrit Imsieke Geschdftsf|hrer / Managing Director le-tex publishing services GmbH Weissenfelser Str. 84, 04229 Leipzig, Germany Phone +49 341 355356 110, Fax +49 341 355356 510 gerrit.imsieke@xxxxxxxxx, http://www.le-tex.de
Registergericht / Commercial Register: Amtsgericht Leipzig Registernummer / Registration Number: HRB 24930
Geschdftsf|hrer: Gerrit Imsieke, Svea Jelonek, Thomas Schmidt, Dr. Reinhard Vvckler
| Current Thread |
|---|
|
| <- Previous | Index | Next -> |
|---|---|---|
| Re: [xsl] Nodes get new IDs in func, David Carlisle | Thread | Re: [xsl] Nodes get new IDs in func, Martynas Jusevicius |
| Re: [xsl] Nodes get new IDs in func, David Carlisle | Date | Re: [xsl] Nodes get new IDs in func, Wolfgang Laun |
| Month |