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POXSLT stylesheets design pattern - separate common and specific templates in different stylesheets
 

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  1. POXSLT stylesheets design pattern - separate common and specific templates in different stylesheets
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    <p>I was wondering if there is a good approach in XSLT stylesheet design pattern to separate common and specific data representation.</p> <p>I was trying, but got very confused and lost. I would appreciate any advice, tips, hints where I can read up on how to better separate XSLT stylesheets. And also, would really appreciate help with the example below as it doesn't work =/ THANK YOU!</p> <p>I need to create a variety of HTML docs with different looks that would reuse some of the data. For example date of a document, signature details (name, job title) and so on. Also, I'm using quite a lot of global variables (because XML isn't structured well and data reused throughout a doc).</p> <p>What I was trying to do, is to move all the templates that would create a common HTML structure in one stylesheet and then all specific bits will be in their own stylesheet.</p> <p>Something like the following:</p> <p>Common templetes stylesheet "commonTemplates.xsl"</p> <pre><code>&lt;xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"&gt; &lt;!-- Variables Local --&gt; ... &lt;xsl:output method="html" doctype-public="-//W3C//DTD HTML 4.01 Transitional//EN" doctype-system="http://www.w3.org/TR/html4/loose.dtd" indent="yes" /&gt; &lt;xsl:template match="/Bookings"&gt; &lt;html&gt; &lt;head&gt; &lt;!-- populated by a template in a specific stylesheet --&gt; &lt;title&gt;&lt;xsl:call-template name="docTitle"/&gt;&lt;/title&gt; &lt;/head&gt; &lt;body&gt; &lt;xsl:apply-templates /&gt; &lt;/body&gt; &lt;/html&gt; &lt;/xsl:template&gt; &lt;!-- general template for date --&gt; &lt;xsl:template match="/Bookings/Booking" name="docDate"&gt; &lt;p class="date"&gt;&lt;xsl:value-of select="./@Date"/&gt;&lt;/p&gt; &lt;/xsl:template&gt; &lt;!-- general template for signature --&gt; &lt;xsl:template match="/Bookings/Booking/Users" name="signature"&gt; &lt;xsl:param name="signatureLine" select="'Yours sincerely,'"/&gt; &lt;div id="signature"&gt; &lt;p&gt;&lt;xsl:value-of select="$signatureLine"/&gt;&lt;/p&gt; &lt;p class="details"&gt; &lt;!-- populated by a template in a specific stylesheet --&gt; &lt;xsl:apply-templates select="." mode="signature"/&gt; &lt;/p&gt; &lt;/div&gt; &lt;/xsl:template&gt; &lt;!-- dummy templates signatures otherwise it complains that there is no such template --&gt; &lt;xsl:template name="docTitle"/&gt; &lt;/xsl:stylesheet&gt; </code></pre> <p>Specific templetes stylesheet:</p> <pre><code>&lt;xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0"&gt; &lt;!-- Imports --&gt; &lt;xsl:import href="commonTemplates.xsl"/&gt; &lt;!-- BODY CONTENT OF HTML PAGE --&gt; &lt;xsl:template match="/Bookings/Booking"&gt; &lt;xsl:call-template name="docDate"/&gt; &lt;!-- document's content --&gt; &lt;div&gt; &lt;xsl:call-template name="content" /&gt; &lt;/div&gt; &lt;/xsl:template&gt; &lt;xsl:template name="docTitle"&gt; &lt;xsl:text&gt;Here is the document title&lt;/xsl:text&gt; &lt;/xsl:template&gt; &lt;!-- some content at the end of which signature should be inserted --&gt; &lt;xsl:template name="content"&gt; &lt;p&gt;SOME CONTENT&lt;/p&gt; &lt;xsl:apply-templates /&gt; &lt;/xsl:template&gt; &lt;!-- specific rule to insert appropriate data for signature --&gt; &lt;xsl:template match="/Bookings/Booking/Users" mode="signature"&gt; &lt;span class="name"&gt;&lt;xsl:value-of select="./@Name"/&gt;&lt;/span&gt; &lt;span class="job"&gt;&lt;xsl:value-of select="./@Title"/&gt;&lt;/span&gt; &lt;/xsl:template&gt; &lt;/xsl:stylesheet&gt; </code></pre> <p>Unfortunately, the template for signature doesn't work and I can't figure out why :( It does for the docTitle though.</p> <p>The results HTML looks like this:</p> <pre><code>&lt;!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"&gt; &lt;html&gt; &lt;head&gt; &lt;meta http-equiv="Content-Type" content="text/html; charset=UTF-8"&gt; &lt;title&gt;&lt;/title&gt; &lt;/head&gt; &lt;body&gt; &lt;p class="date"&gt;16 February 2010&lt;/p&gt; &lt;div id="secondDeposit"&gt; &lt;p&gt;SOME CONTENT&lt;/p&gt; &lt;!-- here I get lots of empty space --&gt; &lt;/div&gt; &lt;/body&gt; </code></pre> <p></p> <p>I was wondering if such idea could be implemented in general and how to do it properly, obviously mine doesn't work. </p> <p>Also, which approach will be better in this case: include or import stylesheet? I think with one of them I don't need to list all the variables again.</p> <p>I would appreciate any help! Sorry for a long post and if it's not as clear.</p> <p>Thank you!</p>
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    1. CO@Tomalak, thank you for editing the HTML. Couldn't figure out how to do it :( Thanks!
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    2. COOh dear... just realised that I didn't have element in my test XML. I do apologize! Nevertheless, would love to hear what approach people use in similar situations: how better to separate common and specific templates between several stylesheets. Thanks! :)
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