RE: [xsl] Using a parameter in a condition

["Michael Kay" <mhk@xxxxxxxxx>]

You are clearly supplying the parameter to the template incorrectly, but
since you haven't shown us the calling code, it's hard to tell you
what's wrong with it.

Michael Kay

> -----Original Message-----
> From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx 
> [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of Ian Lang
> Sent: 24 February 2004 07:12
> To: XSLT List
> Subject: [xsl] Using a parameter in a condition
> 
> 
> I am implementing a look up table for localizable
> strings.  I have a string table that looks like this:
> <?xml version="1.0"?>
> <strings>
>   <string key="String.One">First String</string>
>   <string key="String.Two">Second String</string>
> </strings>
> 
> I do this to load the string table in my main xslt:
>   <!-- Load the string table -->
>   <xsl:variable name="stringTable" 
> select="document($stringTableFileName)"/>
> where $stringTableFileName is a parameter to the style
> sheet.
> 
> To test things I used variables like this:
> <xsl:variable name="title" 
> select="$stringTable/strings/string[@key='String.One']"/>
> 
> Which worked but I wanted to instead call a template
> passing it the key so I can centralize the lookup and
> provide the ability to return a string "!<key>!" if
> the key could not be found.  So I wrote:
>   <xsl:template name="getLocalizedString">
>     <xsl:param name="key"/>
>     <xsl:variable name="lookupString" 
> select="$stringTable/strings/string[@key=$key]"/>
>     <xsl:choose>
>       <xsl:when test="lookupString != ''">
>         <!-- Return the found string -->
>         <xsl:value-of select="$lookupString"/>
>       </xsl:when>
>       <xsl:otherwise>
>         <!-- Return a string indicating what key could
> not be found -->
>         <xsl:text>!</xsl:text><xsl:value-of
> select="$key"/><xsl:text>!</xsl:text>
>       </xsl:otherwise>
>     </xsl:choose>
>   </xsl:template>
> 
> The trouble is that no matter how I write the
> definition for lookupString and no matter how I pass
> the parameter key I cannot get it to work.  I either
> get returns of "!!" or "!<key>!" but never the string
> I want.  This seems like and FAQ but I cannot seemt to
> find what I am looking for.
> 
> Any help apprciated,
> 
> IL
> 
> 
> 
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