On Thu, Sep 17, 2020, 2:36 AM Dennis Sweeney <[email protected]>
wrote:
> >>> f"It is {hh}:{mm} {am_or_pm}" = "It is 11:45 PM"
> >>> f"It is {hh}:{mm} {am_or_pm}" == "It is 11:45 PM"
I cringe at every part of this proposal. But this is especially perplexing.
How can it POSSIBLY work, unless we have "spooky action at a distance"?!
The proposal a terrible abuse of OUTPUT f-strings. It is confusing,
unclear, ambiguous, and would make code far harder to read.
Having some sort of library for template matching seems fine. Letting the
mini-language be inspired by f-strings seems fine. It should show it's
merit as a third party tool first, but I can imagine using such.
This I wouldn't hate:
hour, minute, daytime = template(
pattern="It is {hh}:{mm} {am_or_pm}",
instance="It is 11:45 PM")
There are lots of specifics to work out, like what to do if things don't
match up between pattern and instance. I deliberately changed, e.g. 'hh'
in the pattern to 'hour' as the binding, because bindings are just names.
I suppose returning a dictionary using the names in the pattern might work
also. Whatever, those are details of a separate library, not a syntax
change.
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