#racket on 2019-01-06 — irc logs at freenode.irclog.whitequark.org

2018-11-14 19:02 lexi-lambda changed the topic of #racket to: Racket v7.1 has been released: http://blog.racket-lang.org/2018/10/racket-v7-1.html -- Racket -- https://racket-lang.org -- https://pkgs.racket-lang.org -- Paste at http://pasterack.org

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01:34 <aidalgol> How do you handle reading possibly invalid json?

01:34 <aidalgol> read-json does not appear to raise any sane errors.

01:38 <hjek> you tried string->jsexpr ?

01:39 <hjek> gives sane errors IMO

01:39 <hjek> or, do you have a specific example of some JSON that doesn't?

01:40 <aidalgol> ah, I want exn:fail:read?

01:40 <aidalgol> hjek: It just wasn't clear what exception predicate I should be using from the way the errors are display'd

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08:50 <aidalgol> Is there something that is to jsexprs what sxpath is to sxml?

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09:03 <aidalgol> I guess a more precise question would be, is there a way to make nested hash-ref calls more readable?

09:03 <aidalgol> Threading macro?

09:05 <aidalgol> No, that wouldn't work

09:05 <aidalgol> So it looks like my options are lenses <https://docs.racket-lang.org/lens/key-value-lenses.html> or this package <https://docs.racket-lang.org/nested-hash/>

09:07 <aidalgol> nested-hash looks clearer to me, going by the examples.

09:09 <aidalgol> Although lenses look more powerful once things start getting complicated.

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