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Rendering XML in readable format in HTML

Posted on 2006-03-31
Medium Priority
Last Modified: 2013-11-19
Hi there,
we have CLOB objects in our database which contains XML data. We are reading this data and rendering our HTML pages with XSLT. Since the XML in this case is a data value, it comes encoded in our XML payload (&lt; &gt; instead of '<' and '>'). This is because we are using JAXB to handle the marshalling of our data objects and it encodes the data because it needs to produce well formed XML (at least that is what I am guessing)

So the question is - can I use XSLT to transform this encoded data so that I can put, at a minimum carriage returns before each tag?
What is happening currently is the HTML output is correct (<xsl:output method="html" indent="no"/>) but the XML is unreadable since we cannot enforce presentation - i.e. carriage returns and tabs

Any ideas?

Question by:pbarry30
  • 2
LVL 60

Expert Comment

by:Geert Bormans
ID: 16348624
Hi pbarry30,

you would get carriage returns in XSLT by having
(on two different lines)
you can also stuff that in a parameter and use it like that

<xsl:output method="html" indent="yes"/>
would already give you some indenting

unless what you are doing is having the XML escaped as pure text
(it seems from your question you do)

then the only thing you can do is stuff the XML wit <br /> for linebreaks and &nbsp; for spaces


Author Comment

ID: 16351118
How to I replace say &lt; with <br/>&lt; in XSLT?
LVL 60

Accepted Solution

Geert Bormans earned 1000 total points
ID: 16351305
For that you need a recursive function
here is an example

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
    <xsl:template match="/">
        <xsl:call-template name="indentTags">
            <xsl:with-param name="argument" select="//yourElement"/>

    <xsl:template name="indentTags">
        <xsl:param name="argument"/>
            <xsl:when test="contains($argument, '&lt;')">
                <xsl:value-of select="substring-before($argument, '&lt;')"/>
                <br />
                <xsl:call-template name="indentTags">
                    <xsl:with-param name="argument" select="substring-after($argument, '&lt;')"/>
            <xsl:otherwise><xsl:value-of select="$argument"/></xsl:otherwise>

this stylesheet calls out for a named template that calls out for itself until all "&lt;" are processed
I assume the element //yourElement for replacing
you can call the template the first time  with the element that contains the pseudeoXML


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