[Gcl-devel] Re: list

[Camm Maguire]

Greetings, and thank you for this.  I take it you've got some clever
spec parsig tool -- great!

In any case, this appears to confirm my suspicions -- only tailp ldiff
butlast, nbutlast and list-length need gracefully handle improper
lists.  I'm working on a dotnil removal commit now.  I'm going to
leave in the code in commented form as grist for future historical
amusement :-).

Take care,

Robert Boyer <address@hidden> writes:

> While I keep thinking about what list of names it is you want to get rid of
> dotnil, here is a list for you.
> 
> In each of the following lines, we have
> 
>    (a) a function name or list of function names,
>    (b) an argument name or argument names for the function or functions
>    (c) something that should be checked for in some sense
> 
>    {write-sequence}{sequence}{a proper sequence}
>    {read-sequence}{sequence}{a proper sequence}
>    {remove-duplicates, delete-duplicates}{sequence}{a proper sequence}
>    {remove, remove-if, remove-if-not, delete, delete-if, 
> delete-if-not}{sequence}{a proper sequence}
>    {substitute, substitute-if, substitute-if-not, nsubstitute, 
> nsubstitute-if, nsubstitute-if-not}{sequence}{a proper sequence}
>    {position, position-if, position-if-not}{sequence}{a proper sequence}
>    {find, find-if, find-if-not}{sequence}{a proper sequence}
>    {sort, stable-sort}{sequence}{a proper sequence}
>    {reverse, nreverse}{sequence}{a proper sequence}
>    {length}{sequence}{a proper sequence}
>    {count, count-if, count-if-not}{sequence}{a proper sequence}
>    {reduce}{sequence}{a proper sequence}
>    {map-into}{sequence}{a proper sequence}
>    {map-into}{result-sequence}{a proper sequence}
>    {map}{sequence}{a proper sequence}
>    {subseq}{new-subsequence}{a proper sequence}
>    {subseq}{sequence}{a proper sequence}
>    {fill}{sequence}{a proper sequence}
>    {elt}{sequence}{a proper sequence}
>    {copy-seq}{sequence}{a proper sequence}
>    {union, nunion}{list-1 and list-2}{proper lists}
>    {subsetp}{list-1 and list-2}{proper lists}
>    {set-exclusive-or, nset-exclusive-or}{list-1 and list-2}{proper lists}
>    {set-difference, nset-difference}{list-1 and list-2}{proper lists}
>    {adjoin}{list}{a proper list}
>    {intersection, nintersection}{list-1 and list-2}{proper lists}
>    {pairlis}{keys and data}{proper lists}
>    {assoc, assoc-if, assoc-if-not}{alist}{an association list}
>    {mapc, mapcar, mapcan, mapl, maplist, mapcon}{list}{a proper list}
>    {member, member-if, member-if-not}{list}{a proper list}
>    {tailp}{list}{a proper list or a dotted list}
>    {ldiff}{list}{a proper list or a dotted list}
>    {ldiff, tailp}{list}{a proper list or a dotted list}
>    {butlast, nbutlast}{list}{a proper list or a dotted list}
>    {endp}{list}{a list}
>    {list-length}{list}{a proper list or a circular list}
> 
> If you're interested in how I got this list, I'll be happy to tell you.
> 
> Bob
> 
> 
> 

-- 
Camm Maguire                                            address@hidden
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