Feature request: "Try parse" family of functions

[TreeOfLearning]

Feature request: "Try parse" family of functions

[TreeOfLearning]

Discord thread (for completeness; there isn't any more info there than in this issue)

[nervetattoo]

I'd suggest a wrapper to intercept exceptions. It would have more usages and not increase the API surface.
Naming can lean on std::assert(input, options):

Function name could be any of suppress, catch, throws ... I feel like suppress best describes the intention

result := std::suppress(
  to_float64(.str),
  catch := <float64>{}
)

I'm not sure its possible to default an empty set here based on the passed first args return type? If so the default should be an empty set of the inferred type.
The good thing is that this would allow having more logic if you know you have a mixed set where you need different handlers.
Ofc this could be achieved with regex matching and ifs too.

result := std::suppress(
  to_float64(.str),
  catch := (to_float64(str_split("foo#12", "#")[1]))
)

Another option would be to use if-then-else syntax with keywords, which tbh might be the most idiomatic.

result := try to_float64(.str) catch <float64>{}