Re: Announce: sxml-match, a pattern matcher for SXML

"Dmitry Lizorkin" <[email protected]> Tue, 15 Mar 2005 13:54:29 +0300
Newsgroups gmane.lisp.scheme.ssax-sxml
Message-ID <[email protected]>
Hello!

I am very interested in sxml-match and I would like to write a pattern that
allows binding not just a single node, but a list of nodes. I failed to find
the corresponding guideline in the manual, but I seemed to have figured it
out for SXML non-attribute nodes:

(sxml-match
   '(elem (a 1) (b 2) (c 3) (d 4))
   [(elem (a ,i) (b ,j) . ,x)
    (list i j x)
    ])
==>
(1 2 ((c 3) (d 4)))

However, the same syntax doesn't work for SXML attributes:

(sxml-match
   '(elem (@ (a 1) (b 2) (c 3) (d 4)))
   [(elem (@ (a ,i) (b ,j) . ,x))
    (list i j x)
    ])
==>
bad syntax in: (unquote x)

How should I write the code to bind the variable `x' to a list of all
attributes that are not matched by another parts of the pattern?

Regards,
Dmitry





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