RE: [xsl] Problem using translate to escape quotes

Kevin Collins wrote:

> <xsl:variable name="backSlashQuote">&#92;&#39;</xsl:variable>

What's wrong with using this?
  <xsl:variable name="backSlashQuote">\'</xsl:variable>

> <xsl:variable name="backSlash">&#92;</xsl:variable>

What's wrong with using this?
  <xsl:variable name="backSlash">\</xsl:variable>

> <xsl:variable name="singleQuote">&#39;</xsl:variable>

What's wrong with using this?
  <xsl:variable name="singleQuote">'</xsl:variable>

>  <xsl:value-of select="translate( $mystr, $singleQuote,
$backSlashQuote)"/>

This is doing exactly what it's supposed to. Check the specs.

translate() translates single characters for other single characters
according to their position in the two strings,

e.g. translate("Hello World", "HW", "hw")

would transpose H->h and W->w (note their relative positions in the two
strings), giving "hello world".

So, translate() will not do what you want - that is, it won't allow you
to replace a single character (') with two characters (\'). The solution
will need to involve the substring functions, or one of Dimitre's FXSL
functions.

I'm sure this is an FAQ - check Dave Pawson's FAQ.

Dan.

-- 
Danny Yates
Technical Architect
Abbey National Treasury Services
E-mail: Danny.Yates@xxxxxxxxxx
Phone: +44 20 7756 5012
Fax: +44 20 7612 4342


-----Original Message-----
From: Kevin Collins [mailto:kcollins@xxxxxxx]
Sent: 04 December 2002 15:43
To: XSL-List@xxxxxxxxxxxxxxxxxxxxxx
Subject: [xsl] Problem using translate to escape quotes


I have a string containing single quotes held in a variable. I want to
escape each quote by inserting a backslash before it, but I can't get it
to work. The translate function appears to be inserting the backslashes
without the quotes.

Here's a test version of the stylesheet:
--------------------------------------------
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
version="1.0">
<xsl:output method="html"/>

<xsl:variable name="mystr">this is Kevin's 'string'</xsl:variable>

<xsl:variable name="backSlashQuote">&#92;&#39;</xsl:variable>
<xsl:variable name="backSlash">&#92;</xsl:variable>
<xsl:variable name="singleQuote">&#39;</xsl:variable>
<xsl:variable name="backSlashQuote2"><xsl:value-of select="concat(
$backSlash, $singleQuote )"/></xsl:variable>

<xsl:variable name="mystr_escaped">
 <xsl:value-of select="translate( $mystr, $singleQuote, $backSlashQuote
)"/>
</xsl:variable>

<xsl:template match="/">
<html>
 <body>
  <xsl:value-of select="$mystr"/>
  <br/>
  <xsl:value-of select="$mystr_escaped"/>
 </body>
</html>
</xsl:template>

</xsl:stylesheet>
--------------------------------------------

Test source document (any one will do): 
--------------------------------------------
<?xml version="1.0" encoding="iso-8859-1"?>
<mynode></mynode>
--------------------------------------------

I get the same result regardless of whether I use $backSlashQuote or
$backSlashQuote2 in the translate function. Here's the output I'm
getting:
--------------------------------------------

<html>
<body>this is Kevin's 'string'<br>this is Kevin\s \string\</body>
</html>

--------------------------------------------

I'm using MSXML 4.0.

Thanks for any help with this!
Kevin Collins


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