[bug #23112] SRFI-1 `drop-right' and `take-right' don't work with dotted lists

[bug #23112] SRFI-1 `drop-right' and `take-right' don't work with dotted lists

[Ludovic Courtès]

URL:
  <http://savannah.gnu.org/bugs/?23112>

                 Summary: SRFI-1 `drop-right' and `take-right' don't work
with dotted lists
                 Project: Guile
            Submitted by: civodul
            Submitted on: Wednesday 04/30/2008 at 07:25
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

SRFI-1 `drop-right' and `take-right' don't work with dotted lists (as of
1.8.4), but they should.

Original report: http://thread.gmane.org/gmane.lisp.guile.devel/7196 .

Ludovic.




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[bug #23112] SRFI-1 `drop-right' and `take-right' don't work with dotted lists

[Stefan Israelsson Tampe]

Follow-up Comment #1, bug #23112 (project guile):

I attached a file take.scm for a proposed fix of this issue.

I Will make a few tests that verify it's functioning and post it as well. but
before that I will wait for eventual comments.

(file #20239)
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Additional Item Attachment:

File name: take.scm                       Size:0 KB


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[bug #23112] SRFI-1 `drop-right' and `take-right' don't work with dotted lists

[Stefan Israelsson Tampe]

Follow-up Comment #2, bug #23112 (project guile):

Note, the proposed code in take.scm below does not work for circular lists.

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[bug #23112] SRFI-1 `drop-right' and `take-right' don't work with dotted lists

[JackBenny]

Follow-up Comment #3, bug #23112 (project guile):

Ashwood University <http://twitter.com/ashwooduni>


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[bug #23112] SRFI-1 `drop-right' and `take-right' don't work with dotted lists

[JackBenny]

Follow-up Comment #4, bug #23112 (project guile):

Corllins University <http://affiliates.universaldegrees.com/>


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[bug #23112] SRFI-1 `drop-right' and `take-right' don't work with dotted lists

[JackBenny]

Follow-up Comment #5, bug #23112 (project guile):

Nation High School <http://www.nhsverification.com/>


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[bug #23112] SRFI-1 `drop-right' and `take-right' don't work with dotted lists

[JackBenny]

Follow-up Comment #6, bug #23112 (project guile):

Rochville University <http://www.buy-a-diploma.com/>


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[bug #23112] SRFI-1 `drop-right' and `take-right' don't work with dotted lists

[JackBenny]

Follow-up Comment #7, bug #23112 (project guile):

Universal Degrees <http://affiliatesdirectory.com/links/detail.cgi?ID=18169>


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[bug #23112] SRFI-1 `drop-right' and `take-right' don't work with dotted lists

[Andy Wingo]

Update of bug #23112 (project guile):

                  Status:                    None => Fixed                  
             Open/Closed:                    Open => Closed                 

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Follow-up Comment #8:

Thank you for the patch and follow-up, Stefan!  And apologies for the late
reply.  In the end I ended up committing something else, taking the
implementation from http://srfi.schemers.org/srfi-1/srfi-1-reference.scm.  It
too does not deal well with circular lists.  Oh well, though -- doesn't seem
to be a big deal.

Cheers,

Andy

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