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Re: [xsl] Problem with xslt recursion

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hi david..
The solution that you gave for using
/a/b/*[name()=$path]
works fine..

Thanks a lot..


--- David Carlisle <davidc@xxxxxxxxx> wrote:
> 
> > [number($Index)]
> 
> you would have been better to have kept Index as a
> number rather than
> forcing it back to a number.
> 
> ie don't do this:
> 
> <xsl:with-param name="Index"><xsl:value-of
> select="$Index+1"/></xsl:with-param>
> 
> 
> do this
> 
> <xsl:with-param name="Index" select="$Index+1"/>
> 
> Never use xsl:variable with content instead of a
> select attribute
> unless you intend to do that. It is quite expensive.
> You are starting with a number then generating a
> text node with the
> string value of that number, placing that in a root
> node, making a result
> tree fragment of that, and then converting the whole
> thing back to a
> number with number().
> 
> 
>   The purpose is solved but i want to know if it is
> the
>   right thing to do....
> 
> Impossible to say given your description, but it
> seems unlikely that
> you need recursion at all. As I said in my reply
> your stated aim of
> concatenating the text can be done with a single
> line:
> 
> <xsl:copy-of select="Type/text()"/>
> 
> <xsl:variable name="fullpath"
> select="concat('/a/b/',$path)"/>
> 
> 
> This is a FAQ Xpaths are not strings, they are part
> of the syntax of
> the language. In C or Java or most other programming
> languages, if you
> had  a variable x with value 2 and the string "x+2" 
> it wouldn't be
> trivial to get the value 4: you'd have to write a
> parser to parse the
> string and access the referenced  constructs. It is
> the same in XPath,
> if you have a string that looks like an XPath then
> this is no use to you
> unless you have an Xpath parser that is callable at
> run time. Some
> systems do have such an extension, eg saxon:evaluate
> but it is not a
> standard part of the language.
> 
> In simple cases such as your first
> 
> <xsl:variable name="path">c</xsl:variable>
> (which would be better as
>   <xsl:variable name="path" select="'c'"/>
> )
> <!-- Now i am trying to access the dynamic path
> a/b/c
> 
> you can do
> 
> /a/b/*[name()=$path]
> 
> This really is a FAQ see the faq that is linked from
> the home page of
> this list.
> 
> David
> 
> 
> 
> -- 
> http://www.dcarlisle.demon.co.uk/matthew
> 
>
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=====
Luv
Roopesh
Software Engineer 
Verizon Data Services India 
[98842-40222]

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