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[bug #31691] Ellipsis not supported in nested `sxml-match' forms [1.9.13

From: Stefan Israelsson Tampe
Subject: [bug #31691] Ellipsis not supported in nested `sxml-match' forms [1.9.13]
Date: Sun, 11 Sep 2011 21:54:45 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:5.0) Gecko/20100101 Firefox/5.0

Follow-up Comment #7, bug #31691 (project guile):

I suspect that this bug is a feature request.

Anyway I coded another solution which sematics is more exact.
The idea is to quote ... and each match will remove one of the quotes around
.... So now this works,

(sxml-match '(a (b (c 1) (c 2 3)) (b (c 4)) (b (c 5)))
 ((a ,x ...) 
    (list (sxml-match x 
               ((b ,y '...) 
                   (list (sxml-match y 
                            ((c ,z ''...) z)) '...))) ...)))

$1 = (((1) (2 3)) ((4)) ((5)))

attached is a git diff of the code.

the bad thing with this code is that it's not possible to output
the '... symbol.


(file #23968)

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File name: sxml-match.ss.2.diff           Size:2 KB


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