Hi Alex, I pushed a commit to master for ?change-at with two slight changes.
1) I kept the ( key assoc quot -- ) stack effect that ?change-at has. 2) I used ``at*`` so that it works with keys that have a value of ``f``. Your version uses ``of`` which is like ``at`` and doesn't distinguish values set to false with unset values. See what you think! Best, John. On Mon, Aug 17, 2020 at 4:29 PM John Benediktsson <mrj...@gmail.com> wrote: > Ah, gotcha! > > That could be cool. I’ll push a commit later for that! > > > On Aug 17, 2020, at 9:22 AM, Jon Harper <jon.harpe...@gmail.com> wrote: > > > > I think Alex wanted the conditional execution of the quot. > > if the key doesn't exist in the assoc, change-at provides f as value, > > but still stores the newvalue in the assoc at the given key. > > > > Jon > > > >> On Mon, Aug 17, 2020 at 6:18 PM John Benediktsson <mrj...@gmail.com> > wrote: > >> > >> https://docs.factorcode.org/content/word-change-at,assocs.html > >> > >> On Aug 17, 2020, at 8:31 AM, Alexander Ilin <ajs...@yandex.ru> wrote: > >> > >> Hello! > >> > >> I came up with this code, because I could not quickly find an existing > word for this. > >> Did I miss it? If not, would it be a useful addition to the assocs > vocab? > >> > >> ! If key exists in the assoc, change its value with quot. > >> : ?change-value ( assoc key quot: ( value -- value' ) -- assoc' ) > >> [ swap pick set-at ] compose [ 2dup of ] dip [ drop ] if* ; inline > >> > >> ! Usage example: > >> : ?decode-opt ( assoc -- assoc' ) > >> "opt" [ string>options ] ?change-value ; > >> > >> > >> ---=====--- > >> Александр > >> > >> > >> > >> _______________________________________________ > >> Factor-talk mailing list > >> Factor-talk@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/factor-talk > >> > >> _______________________________________________ > >> Factor-talk mailing list > >> Factor-talk@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/factor-talk > > > > > > _______________________________________________ > > Factor-talk mailing list > > Factor-talk@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/factor-talk >
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