> Using either of 3 :'... y' and {{...y}} fixes this. The interpreter can also "fix" it for you although the answer might be verbose and it is not tacit:
(w@q)f. ({:`([: $: 0 1&+)@.(9&<@{.)@(([: */ "."0@":@{.) , {:)"1) (1 : 0)@(|:@,: 1:) u y : x u y ) (w@q)f. 50 25 33 22 293 1 2 1 1 3 P.S. There was a way, using a previous-generation interpreter, to define an illegal tacit adverb that could provide a desired context for $: to maintain tacitness, alas that is no longer possible (as far as I know). On Tue, Oct 17, 2023 at 7:25 PM 'Viktor Grigorov' via Programming < programm...@jsoftware.com> wrote: > > The ( was a curtailed copy. > > I'd considered briefly $:'s context prior to thinking it shouldn't change in either case, thinking it extended to the the parentheses around the gerund, conjunction and verb. I didn't know the details of self-recurance's scope. Using either of 3 :'... y' and {{...y}} fixes this. > > Thank you; sorry for the false alarm. > > Oct 18, 2023, 02:04 by rauldmil...@gmail.com: > > > This sentence gives me an error even without parens. > > > > Looking closer, I see six left parentheses and seven right parentheses here: > > > > ({:`([:$:0 1&+)@.(9&<@{.)@(([:*/"."0@":@{.),{:))"1(|:@,:1:))50 25 33 22 293 > > > > Getting rid of the far right parenthesis gives me the result which you > > displayed. > > > > Meanwhile, you're using $: > > > > And, incorporating (|:@,:1:) into the $: phrase changes the context of > > $: which means that it also changes the definition used for evaluating > > $: -- so you'll need to do something about that. There's several > > possibilities, and using a name for the $: phrase is one of those. > > > > I hope this helps, > > > > -- > > Raul > > On Tue, Oct 17, 2023 at 6:26 PM 'Viktor Grigorov' via Programming > > <programm...@jsoftware.com> wrote: > > > >> > >> Hey, > >> > >> I have a bit of code I want to include into something large, but I'm hitting a wall. > >> > >> ({:`([:$:0 1&+)@.(9&<@{.)@(([:*/"."0@":@{.),{:))"1(|:@,:1:))50 25 33 22 293 > >> 1 2 1 1 3 > >> > >> Okay. Slap on some parens, and it fails? Valence error for {:..? Both resolve to 3, a verb, according to 4!:0. Because both verbs are monadic, I tried capping either and both, all composing conjunctions, parenthesizing. Adding in ]. or [., I don't see what the problem is, or how tail's valence fits into it? Some configurations increase the dimensions and don't give out the desired thing: > >> > >> (({:`([:$:0 1&+)@.(9&<@{.)@(([:*/"."0@":@{.),{:))"1 @ (|:@,:1:))50 25 33 22 293 > >> 1 0 > >> 0 0 > >> > >> 1 1 > >> 0 0 > >> > >> 1 0 > >> 0 0 > >> > >> 1 0 > >> 0 0 > >> > >> 1 1 > >> 1 0 > >> > >> However, assigning both to names and composing does work > >> > >> q=:|:@,:1: > >> w=:({:`([:$:0 1&+)@.(9&<@{.)@(([:*/"."0@":@{.),{:))"1 > >> w q 50 25 33 22 293 > >> 1 2 1 1 3 > >> (w@q)50 25 33 22 293 > >> 1 2 1 1 3 > >> > >> What am I missing? This to me is unexpected behavior. I expect parethesization and variable substitution to be identical, but it's not. I'm sure there's a single, explanatory/exculpatory line somewhere about assignments, variables and or parentheses on the wiki, but it's not easily discoverable.. > >> > >> ---------------------------------------------------------------------- > >> For information about J forums see http://www.jsoftware.com/forums.htm > >> > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm