[xslt] Re: question about single quote

[Dan Allen <mojavelinux yahoo com>]

Ah yes, your problem is clear.  When creating a quoted string as an xPath expression, you cannot use ' or ' if you use single quotes.  You must do something like this

select="concat('',"'",'')"

or reverse the original quotes

select='"'"'

or first create a variable such as

<xsl:variable name="tmp">'</xsl:variable>

in the case of your function, if you pass the string in as a variable, it will be internally escaped and you won't have to worry about any of this.  So this all comes when you are trying hardcode a test string into your function call.  The easiest way around all this is to use the tmp variable...then you can just do:

<xsl:call-template name="replace-string">
  <xsl:with-param name="text" select="normalize-space(/doc)"/>
  <xsl:with-param name="replace" select="$tmp"/>
  <xsl:with-param name="with" select="'&quot;'"/>
</xsl:call-template>


Dan Allen


> Hi,
> 
> I have a question about the xslt functions substring-before and
> substring-after. I use this xml File:
> 
> <?xml version="1.0" encoding="ISO8859-1"?>
> <?xml-stylesheet href="http://ap-lnx-ofeige.client/xsl-bin/foo.xsl";
> type="text/xsl"?> <doc>Hello 'world'</doc>
> 
> I like to do a search and replace to replace the single quote with a
> other char. For that I use this xslt function:
> 
> <xsl:template name="replace-string">
> 	<xsl:param name="text"/>
> 	<xsl:param name="replace"/>
> 	<xsl:param name="with"/>
> 	<xsl:choose>
> 		<xsl:when test="contains($text,$replace)">
> 			<xsl:value-of
> select="substring-before($text,$replace)"/>
> 			<xsl:value-of select="$with"/>
> 			<xsl:call-template name="replace-string">
> 				<xsl:with-param name="text"
> select="substring-after($text,$replace)"/>
> 				<xsl:with-param name="replace"
> select="$replace"/>
> 				<xsl:with-param name="with"
> select="$with"/>
> 			</xsl:call-template>
> 		</xsl:when>
> 		<xsl:otherwise>
> 			<xsl:value-of select="$text"/>
> 		</xsl:otherwise>
> 	</xsl:choose>
> </xsl:template>
> 
> This function works fine with all Chars except the ' (&apos;). When I do
> a 
> 
> <xsl:call-template name="replace-string">
> 	<xsl:with-param name="text" select="normalize-space(/doc)"/>
> 	<xsl:with-param name="replace" select="'&apos;'"/>
> 	<xsl:with-param name="with" select="'&quot;'"/>
> </xsl:call-template>
> 
> I get this Error
> 
> Invalid expression '''
> Compilation error: file ... element with-param
> 
> And so on.
> 
> I can introduce myself why this expression wrongly strike. But I have no
> answer.
> 
> 
> Regards,
> Oliver Feige
> 
> 
> 
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