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hpr2425 :: Intro to XSL

A brief introduction to XSL and xsltproc

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Hosted by klaatu on 2017-11-17 is flagged as Clean and is released under a CC-BY-SA license.
Tags: docbook,xml,xsl.
Listen in ogg, spx, or mp3 format. | Comments (2)

Sure, you can use pandoc to process your Docbook XML, but why not learn a little XSL this weekend?

Requirements

You must have xsltproc installed. It's available from your software repository.

Here is some sample XML for you:


<xml version="1.0">
  <para>
    My name is <author>Foo</author>.
  </para>

  <para>
    You're listening to <emphasis role="bold">Hacker Public
    Radio</emphasis>.
  </para>
</xml>

And here's the complete XSL as demonstrated:


<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">

  <xsl:template match="para">
    <p><span><xsl:apply-templates/></span></p>
  </xsl:template>

  <xsl:template match="emphasis">
    <em><xsl:apply-templates/></em>
  </xsl:template>

  <xsl:template match="emphasis[@role='bold']">
    <strong><xsl:apply-templates/></strong>
  </xsl:template>

  <xsl:template match="author" name="host">
    <xsl:choose>

      <xsl:when test="$host = 'Klaatu'">
        <xsl:text>Klaatu</xsl:text>
      </xsl:when>

      <xsl:when test="$host = 'Gort'">
        <xsl:text>Gort</xsl:text>
      </xsl:when>
    </xsl:choose>
  </xsl:template>
</xsl:stylesheet>

Links


Comments

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Comment #1 posted on 2017-11-19T22:49:47Z by Dave Morriss

This was really interesting

I enjoyed this a lot. It was very clearly explained and the example was helpful.

I tried to understand XSL back in 2012 when writing Bash scripts to let me download music from Magnatune. They held their catalogue in XML at that time (now it's in a SQLite database) and I used xsltproc and XSL to extract stuff. I didn't find any very clear explanations of what could be done in XSL at that time, though I winged it by copying examples and using trial and error.

Your links seem to fill in many of the gaps in my understanding, so thanks for them too.

Dave

Comment #2 posted on 2017-11-21T07:37:38Z by Klaatu

Re: This was really interesting

Glad you enjoyed in! I just can't wait for your LaTeX episode!

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