Re: Launch gprolog with sh

Hi,

this works well on my machine. I suspect your version is too old
(last stable is 1.4.0 and 1.4.1 is in preparation).

The best if to get a more recent version (1.4.0). Either update your
ubuntu package or install a new version from sources

(in that case please get the last snapshot at http://gprolog.univ-paris1.fr/unstable/gprolog-20120319.tgz )

If you don't update your version you can try to avoid the --entry-goal
using a initialization directive to launch init. To do
this add in your file:

:- initialization(init).

You can also easily compile it to provide a native executable:

gplc wumpusMind.pl

Adding (the initialization directive as explained above).

The execute it with:

./wumpusMind

Then you can add call the halt/0 predicate (or friends
like stop/0) and/or gplc linker options like --min-bips
or --no-top-level

(see http://gprolog.org/manual/html_node/gprolog009.html#toc9 ).

BTW: If you upgrade to 1.4.0, you can use the gprolog shebang
support (http://gprolog.org/manual/html_node/gprolog007.html#toc4) .

For this add a very first line in you wumpusMind.pl like:

#!<path_to_gprolog_executable>/gprolog --consult-file

:- initialization(init).

And then you simply execute your script with (after a chmod a+x
./wumpusMind.pl):

./wumpusMind.pl

Daniel

Le 30/03/2012 09:43, Paolo Parise a écrit :

Hi,

I'm writing a script (.sh) which should launch gprolog, load a
file (wumpusMind.pl ) and the initial query (init)
in the same file which is in the form:

init :-

retractall(counter(_)),

...

but there's something wrong (it seems in the consulting of name.pl ):

gprolog --consult-file wumpusMind.pl --entry-goal 'init, nl'

(error message:)

paolo@paolo-PC-Ubuntu:~/Desktop$ sh lauch.sh

GNU Prolog 1.3.0

By Daniel Diaz

Copyright (C) 1999-2007 Daniel Diaz

warning: command-line goal 'init, nl' caused exception:
error(existence_error(procedure,init/0),'command-line')

| ?-

Manually I do the follow:

gprolog

| ?- [name]

| ?- init.

... processing

Have you got a clue?

Thanks in advance!

Paolo P.

--

Ce message a été vérifié par
MailScanner
pour des virus ou des polluriels et rien de
suspect n'a été trouvé.

_______________________________________________
Users-prolog mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/users-prolog