On Mon, 10 Mar 2003, Jeni Tennison wrote:

> Hi Robert,
> 
> >   eg., if i wanted all attribute nodes with name "key", that's
> > just
> >
> >   //@key
> >
> > but what if i want attr nodes where key is specifically equal to
> > "F"? i'm assuming that requires a predicate, but i've tested several
> > variations and none work. how do i ask if the string-value is equal
> > to "F"?
> 
> Get the string value of the context node (the attribute) with the
> string() function:
> 
>   //@key[string(.) = "F"]
> 
> or just use . and let the processor do the conversion of the attribute
> node to a string implicitly:
> 
>   //@key[. = "F"]

ah, this seems to explain something else i was looking at.  if i
have the path

  //element[@attr = "value"]

this will obviously select all "element"s with attribute "attr" whose
value is "value".  if i were to write that out the long way, i would
get

  //element[string(@attr) = "value"]

is that right?  that is, using an attribute in a string context
forces it to be converted into its "string-value" value.  ok, 
things are starting to make more sense.

rday


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list