Re: what's the corresponding predcate as atomic_list_concat in swi
Daniel Diaz <[email protected]>
| Newsgroups | gmane.comp.gnu.prolog.general |
|---|---|
| Message-ID | <[email protected]> |
Hi, the easiest way to convert numbers to atoms and then use atom_concat/3. This should work: atomic_concat(X1, X2, A3) :- to_atom(X1, A1), to_atom(X2, A2), atom_concat(A1, A2, A3). to_atom(A, A) :- atom(A), !. to_atom(X, A) :- number_atom(X, A). Daniel Le 26 juin 2013 à 08:39, Sean Charles <[email protected]> a écrit : > Hi z_axis, > > I looked long and hard and I couldn't find anything suitably matched in the atom and character code sections … sorry. > > I think somebody that *knows* the language has an opportunity to hand-roll something at this point… I will also try to do this as an exercise, it will be good to try. > > My initial thought would be to use a stream writing to an atom, then write each atom in the original list plus the intervening comma for all but the last atom. > > open_output_atom_stream ... > write_term_to_atom … each list member plus a comma > close_output_atom_stream ... > > Simples. Except I just have to do it. And if it could be used "backwards" to split the atom then so much the better, like SWI. > > I am sure somebody else will do it first but I like the look of this so I shall try as well. > > Sean. > > > > > On 26 Jun 2013, at 03:15, z_axis <[email protected]> wrote: > >> It seems there is just atomic_concat in gprolog ? >> Mime-Version: 1.0 >> Content-Type: Text/Plain; charset=iso-8859-7 >> Content-Transfer-Encoding: base64 >> X-CM-TRANSID:C8CowEApvUUWT8pR28F5Cw--.21S2 >> X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7v73 >> VFW2AGmfu7bjvjm3AaLaJ3UbIYCTnIWIevJa73UjIFyTuYvjxU2t8nUUUUU >> X-CM-SenderInfo: x2bd5xrv6rljoofrz/1tbiThZIZlEAFN07UAABsE >> >> ZV4o8C5pKSArIDEgPSAwDQo= >> >> >> _______________________________________________ >> Users-prolog mailing list >> [email protected] >> https://lists.gnu.org/mailman/listinfo/users-prolog > > > _______________________________________________ > Users-prolog mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/users-prolog > > -- > Ce message a ete verifie par MailScanner > pour des virus ou des polluriels et rien de > suspect n'a ete trouve. > -- Ce message a ete verifie par MailScanner pour des virus ou des polluriels et rien de suspect n'a ete trouve.