in reply to XML::XPath and variables

Isn't it fun to mix Perl punctuation with XPath? My take would be that you are missing the quotes around $save. Plus as mentionned previously you should backslash your @'s

In such a case I use qq{} to create the string instead of the usual quotes, it gets a little clearer:

@nodes = $xp->findnodes( qq{//A["$save" = \@idref]//B[\@id = "$save"]}
+);

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Re: Re: XML::XPath and variables
by mush4brains (Acolyte) on Sep 13, 2002 at 17:54 UTC
    As I look back on this, my question was confused on many levels. (grin)

    In my actual code, I'm using single quotes around the XPath expr, so the @s and $s aren't an issue. (Shame on me for misstating.)

    Also, I think I'm missing something about variables in XPath. For example, there is actually no "assignment" operator in the XPath 1.0 spec, so assigning to a variable like this isn't really possible. In the context of XSLT, XPath has "variables", but again, no assignment within the XPath expression.

    And I guess I'm confused as to how XML::XPath::Variable is used...

    Or maybe I simply have no idea what I'm talking about (quite likely ;-).

    - Mush
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      matts could explain it better, but I believe XPath variables are only included in the module for completedness sake. They are of no use outside of an XSLT context.

      So your brain isn't that mushy. ;--)

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