XSLT: absolute array-of-positions of a node... ?

[Ivan_G_S]

Hello community!

I'm looking for a possibility to create a kind of URL, which
represents the absolute path to a node.

I have an XML document with multiple-nested paragraphs. (Think of a
file directory tree).

Inside a template that matches paragraphs ( <xsl:template
match="paragraph"> ) I need to be able to say: position of current
paragraph is (for example) /1/3/5/2

Like the command 'pwd' in Linux, but with positions instead of
directory names.
( /#7/#4/#5 instead of /usr/lib/java )

But I am also very thankful for a proposed solution with names,
instead of numbers!!!

Thanx in advice!

 

[Martin Honnen]

Inside a template that matches paragraphs ( <xsl:template
match="paragraph"> ) I need to be able to say: position of current
paragraph is (for example) /1/3/5/2

Like the command 'pwd' in Linux, but with positions instead of
directory names.
( /#7/#4/#5 instead of /usr/lib/java )

Do you want the position based on all nodes (use
count(preceding-sibling::node()) or an all elements (use
count(preceding-sibling::*) or on the elements of the same name (use
count(preceding-sibling:aragraph)? For the complete path you need to
walk the ancestor axis.

 

[Ivan_G_S]

Thank you!
But how can I walk the ancestor axis?
I have tried a recursive named template, but I don't know how to call
a template with the parent as new context.

what i need is a naming like:

root (path: 1)
- node (path: 1/1)
- node (path: 1/2)
- - node (path: 1/2/1)
- - node (path: 1/2/2)
- node (path: 1/3)
- - node (path: 1/3/1)
- - node (path: 1/3/2)
- - - node (path: 1/3/1/1)

so, every path name is: "the path of parent" + '/' + "number among
siblings"

 

[Martin Honnen]

But how can I walk the ancestor axis?

<xsl:for-each select="ancestor::*">
for instance to look at all ancestor elements.

 

[Richard Tobin]

I'm looking for a possibility to create a kind of URL, which
represents the absolute path to a node.

I have an XML document with multiple-nested paragraphs. (Think of a
file directory tree).

Inside a template that matches paragraphs ( <xsl:template
match="paragraph"> ) I need to be able to say: position of current
paragraph is (for example) /1/3/5/2

There is a standard syntax of just this kind, usable as a fragment
identifier in URIs for XML documents:

http://www.w3.org/TR/xptr-element/

-- Richard

 

[Joseph Kesselman]

See part 2 of my "styling stylesheets" article on DeveloperWorks
(http://www.ibm.com/xml); it includes a template which will generate a
PseudoXPath to a node. (I realized after publication that producing a
real, but slightly ugly XPath isn't that much harder if you use
predicates, but the editors didn't seem to have a way for me to go back
and tack that tip onto the article. Oh well.)

I suspect that XPath is a better solution for your needs... but at the
very least this will show you how to do the recursive counting needed to
build up your version.