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lisp tree to clim tree
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hans  
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 More options Nov 10 2012, 4:43 am
Newsgroups: comp.lang.lisp
From: hans <schatzer.joh...@gmail.com>
Date: Sat, 10 Nov 2012 01:43:11 -0800 (PST)
Local: Sat, Nov 10 2012 4:43 am
Subject: lisp tree to clim tree
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How can I transform a "lisp tree" like

(("Class: Osteichthyes")
 ("Class: Chondrichthyes"
  (("Order: Squaliformes")
   ("Order: Rajiformes")))
 ("Class: Mammalia"
  (("Order: Rodentia"
    (("Family: Sciuridae")
     ("Family: Muridae")
     ("Family: Cricetidae")))
   ("Order: Carnivora"
    (("Family: Felidae")
     ("Family: Canidae")
     ("Family: Ursidae"))))))

into a "clim (or mcclim) tree" like

(("Class: Osteichthyes")
 ("Class: Chondrichthyes"
  :items (("Order: Squaliformes")
          ("Order: Rajiformes")))
 ("Class: Mammalia"
  :items (("Order: Rodentia"
           :items (("Family: Sciuridae")
                   ("Family: Muridae")
                   ("Family: Cricetidae")))
          ("Order: Carnivora"
           :items (("Family: Felidae")
                   ("Family: Canidae")
                   ("Family: Ursidae"))))))

thank you


 
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WJ  
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 More options Nov 10 2012, 10:06 am
Newsgroups: comp.lang.lisp
From: "WJ" <w_a_x_...@yahoo.com>
Date: 10 Nov 2012 15:06:11 GMT
Local: Sat, Nov 10 2012 10:06 am
Subject: Re: lisp tree to clim tree
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Using pattern-matching in Racket:

(define tree
  '(("Class: Osteichthyes")
    ("Class: Chondrichthyes"
      (("Order: Squaliformes")
       ("Order: Rajiformes")))
     ("Class: Mammalia"
      (("Order: Rodentia"
        (("Family: Sciuridae")
         ("Family: Muridae")
         ("Family: Cricetidae")))
       ("Order: Carnivora"
        (("Family: Felidae")
         ("Family: Canidae")
         ("Family: Ursidae")))))))

(define (climate tree)
  (map (match-lambda
         [(list (? string? x)) (list x)]
         [(list (? string? x) more ...)
          (list* x ':items (climate more))]
         [x (climate x)])
       tree))

(climate tree)
'(("Class: Osteichthyes")
  ("Class: Chondrichthyes"
   :items
   (("Order: Squaliformes") ("Order: Rajiformes")))
  ("Class: Mammalia"
   :items
   (("Order: Rodentia"
     :items
     (("Family: Sciuridae") ("Family: Muridae") ("Family: Cricetidae")))
    ("Order: Carnivora"
     :items
     (("Family: Felidae") ("Family: Canidae") ("Family: Ursidae"))))))


 
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Pascal J. Bourguignon  
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 More options Nov 10 2012, 10:56 am
Newsgroups: comp.lang.lisp
From: "Pascal J. Bourguignon" <p...@informatimago.com>
Date: Sat, 10 Nov 2012 16:56:18 +0100
Local: Sat, Nov 10 2012 10:56 am
Subject: Re: lisp tree to clim tree
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Read:

https://groups.google.com/forum/?fromgroups=#!msg/comp.lang.lisp/Nno1...

(defun tree-to-clim (tree)
  (if (second tree)
      (list (first tree)
            :items (mapcar (function tree-to-clim)
                           (second tree)))
      tree))

(caddr (tree-to-clim (list "Thing: IamTooLazyToUseGoogle"
                           '(("Class: Osteichthyes")
                             ("Class: Chondrichthyes"
                              (("Order: Squaliformes")
                               ("Order: Rajiformes")))
                             ("Class: Mammalia"
                              (("Order: Rodentia"
                                (("Family: Sciuridae")
                                 ("Family: Muridae")
                                 ("Family: Cricetidae")))
                               ("Order: Carnivora"
                                (("Family: Felidae")
                                 ("Family: Canidae")
                                 ("Family: Ursidae")))))))))
-->
(("Class: Osteichthyes")
 ("Class: Chondrichthyes"
  :items (("Order: Squaliformes")
          ("Order: Rajiformes")))
 ("Class: Mammalia"
  :items (("Order: Rodentia"
           :items (("Family: Sciuridae")
                   ("Family: Muridae")
                   ("Family: Cricetidae")))
          ("Order: Carnivora"
           :items (("Family: Felidae")
                   ("Family: Canidae")
                   ("Family: Ursidae"))))))

--
__Pascal Bourguignon__
http://www.informatimago.com


 
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hans  
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 More options Nov 11 2012, 3:46 am
Newsgroups: comp.lang.lisp
From: hans <schatzer.joh...@gmail.com>
Date: Sun, 11 Nov 2012 00:46:53 -0800 (PST)
Local: Sun, Nov 11 2012 3:46 am
Subject: Re: lisp tree to clim tree
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Is such pattern matching possible in CL too?

 
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Marco Antoniotti  
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 More options Nov 11 2012, 10:22 am
Newsgroups: comp.lang.lisp
From: Marco Antoniotti <marc...@gmail.com>
Date: Sun, 11 Nov 2012 07:22:18 -0800 (PST)
Local: Sun, Nov 11 2012 10:22 am
Subject: Re: lisp tree to clim tree
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Yes.  CL-UNIFICATION is there for you in Quicklisp (shameless plug).  Alongside CL-ENUMERATION (another shameless plug) :)

Cheers
--
MA


 
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Pascal J. Bourguignon  
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 More options Nov 11 2012, 11:38 am
Newsgroups: comp.lang.lisp
From: "Pascal J. Bourguignon" <p...@informatimago.com>
Date: Sun, 11 Nov 2012 17:38:36 +0100
Local: Sun, Nov 11 2012 11:38 am
Subject: Re: lisp tree to clim tree
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hans <schatzer.joh...@gmail.com> writes:
> Is such pattern matching possible in CL too?

Yes, but totally overkill for this problem.

--
__Pascal Bourguignon__
http://www.informatimago.com


 
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