On 16Oct2020 10:59, Samuel Marks <samuelma...@gmail.com> wrote:
>--optimizer Adam,learning_rate=0.01,something_else=3
>
>That syntax isn’t so bad! =]
>
>How would you suggest the help text for this looks? (don’t worry about
>implementation, just what goes to stdout/stderr)

Maybe:

    Usage: .......
      ................
      --optimizer name[,param=value...]
        Specify use of the named optimizer with optional additional
        parameters:
          learning_rate   Scale of gullibility, a float.
          something_else  Another tuning thing, 
          ...

which is the style I use in my own usage messages. Possibly also allow the 
"=value" to be optional (where sensible per parameter), since it is so easy.

>PS: Yeah I used square brackets for my Bash arrays

By the time I want real arrays in my shell scripts I'm often verging on the 
regime where it's time to transition to a more expressive language. Like 
Python :-) (Unless of course you're using a bunch of shell control constructs 
like pipes, which are succintly written in the shell.)

Cheers,
Cameron Simpson <c...@cskk.id.au>
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