thanks for the reply (and all others who replyed)
I will tell you the story who brought me here ...
I learned the APL in the 70' years, while I was about 21. (I'm now 59)
Not used the language until may be 5 years ago when I saw APLX for free to
linux users.
used it (may be 10 times per year to do Loto) or just some calculation (as a
calculator)
Not really used the language until may be 2 years ago when I discovered NARS2000
It was a huge update compared to the free linux APLX.
I used the free NARS2000 for about 2 years, still using it.
what get me here was indirectly this url:
http://aplwiki.com/SudokuSolver
it's a jewel of APL program to solve a Sudoku
the bug was that NARS2000 can't cope with thing like:
⍝ For squares which are already known, set list of possibles to empty
((,puzzle≠0)/,possibles)←⊂⍬
so, had to recode like this
possibles←,possibles
possibles[(,puzzle≠0)/⍳⍴,puzzle] ← ⊂⍬
possibles←(⍴puzzle) ⍴ possibles
really painfull but it work, I can solve any Sudoku in NARS2000 now
at that time I started to search for free APL who can do that sort of assigment
... (SelSPEC)
and be relatively new.
found GNU APL
it work, but it lack most of the :if :else :endif stuff and similars
please take a look at http://aplwiki.com/SudokuSolver
as stated above.
Xtian. (Christian)
On 2015-02-19 08:10, Juergen Sauermann wrote:
Hi Christian,
see my answers inline below...
/// Jürgen
On 02/19/2015 03:10 AM, Christian Robert wrote:
I was to report that this APL expression
30 2⍴?60⍴2
always return a row of "1" and a row of "2" (installed from the source(.tar.gz)
provided on GNU Mirrors)
after looking at the "GNU APL" site for a bug report address, I saw that we can
get
the "latest" from svn; so I check-it-out, compiled, installed and to my surprise
it no longer give me a row of "1" and "2" !
great !
I am currently working on the next GNU APL release 1.5 which will include all
fixes for bugs
reported since GNU APL 1,4. The bug above is one of them.
that said, my real question is:
how hard is it to implement the standard/or-not-as-standard-as-it-seems
:if {boolean}
do this
:else
do that
:endif
:repeat
do this
:until {boolean}
:for {var} :in {list}
do this
:endfor
:forlcl {var} :in {list}
do this
:endforlcl
I think there is a :while :endwhile too
thoses are really missing (to my point of view).
1. those things are probably not very hard to implement. However:
2. I try to minimize non-standard extensions of GNU APL because every such
extension
creates incompatibilities of APL programs that are using them. My idea of
free software
is that not only GNU APL itself should be free but also APL programs
running on GNU APL.
And for a free APL program to be useful it is important that is is
portable between different APL interpreters.
an other thing really missing is a native ")edit function_name"
who would open an other xterm and offer editing/modifying/saving a function
in a window, ala VI/VIM or ala emacs or ala nano. (I may be able to help in this matter, ps: ala
means "like", not really "with")
I believe Elias has responded to that. I would add that you now can create user
defined commands yourself :-) .
My personal working mode is that I edit an APL script in one *xterm* with *vi
*and run that script in a second *xterm*
from the command line.
nevertheless I'm quite pleased with "GNU APL" (2 days old installation)
Thanks!
Christian Robert,
Poly.
