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Re: [xsl] Find and change an attribute in a Processing Instruction
Subject: Re: [xsl] Find and change an attribute in a Processing Instruction
From: "Rick Quatro" <frameexpert@xxxxxxxxxxxx>
Date: Mon, 30 Jan 2006 13:47:51 -0500
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Hello All,
I modified an example in Michael's XSLT 2nd Edition, page 552. Here is my
XML.
<?xml version="1.0" encoding="UTF-8"?>
<?Fm Condition Comment Red NO_OVERRIDE hide?>
<?Fm Condition Prolog PANTONE%20648-50%20CVP NO_OVERRIDE show?>
<?Fm Condition Internal Black DOUBLE_UNDERLINE hide?>
<concept>
<title>Sample Title</title>
<?Fm Condstart Prolog?>
<prolog><author>bernard</author></prolog>
<?Fm Condend Prolog?>
<conbody>
<section><p>Some sample text.</p>
<draft-comment author="Rick" importance="high">
<p>an author comment</p>
</draft-comment>
<?Fm Condend Comment?>
<p>Some more sample text.</p>
</section>
</conbody>
</concept>
Here is my stylesheet:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:variable name="find" select="'hide'"/>
<xsl:variable name="replace" select="'show'"/>
<xsl:template name="do-replace">
<xsl:param name="text"/>
<xsl:choose>
<xsl:when test="contains($text, $find)">
<xsl:value-of select="substring-before($text, $find)"/>
<xsl:value-of select="$find"/>
<xsl:call-template name="do-replace">
<xsl:with-param name="text" select="substring-after($text, $find)"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$text"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template match="*">
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates/>
</xsl:copy>
</xsl:template>
<xsl:template match="/processing-instruction()">
<xsl:call-template name="do-replace">
<xsl:with-param name="text" select="."/>
</xsl:call-template>
</xsl:template>
</xsl:stylesheet>
Here is my output:
<?xml version="1.0" encoding="UTF-8"?>Condition Comment Red NO_OVERRIDE
hideCondition Prolog PANTONE%20648-50%20CVP NO_OVERRIDE showCondition
Internal Black DOUBLE_UNDERLINE hide<concept>
<title>Sample Title</title>
<prolog><author>bernard</author></prolog>
<conbody>
<section><p>Some sample text.</p>
<draft-comment author="Rick" importance="high">
<p>an author comment</p>
</draft-comment>
<p>Some more sample text.</p>
</section>
</conbody>
</concept>
There are three problems that I see:
1) The "hide" strings in the processing instructions are not being replaced
by "show".
2) I am loosing the <? ?> delimiters on the processing instructions.
3) Lower level processing instructions are not getting written to the output
(e.g. <?Fm Condstart Prolog?>).
One other thing I noticed: in order to declare non-numeric variables, I have
to use two pairs of quotes ("''"). I couldn't find this documented anywhere.
I am using Saxon 8.5, but my stylesheet needs to be XSLT 1 compatible.
Thanks in advance for any help you can give.
Rick Quatro
Carmen Publishing
585-659-8267
www.frameexpert.com
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