Posted to the Optik list, but it seems defunct. Optik is now Python's
optparse.
I wonder how do you implement optional arguments to Optik. I.e., you
can have an option
-P [file]
-- the filename is optional, with a default "data,pikl". It works as
follows:
-- if no -P is given, no pickle is written
-- if -P is given without the filename following, a pickle file is
written with the default name data.pikl
-- if -P filename is given, the pickle is written to filename
How do we do optional values in Optik, with nargs <= 1?
Another question I have it how can I output a docstring right from the
parser.add_option() block? I prefer to define all option-related
things in the same block once. I'd like to output the help value from
the block, or append it to a report.
Here's example from my Ruby wrapper for Ruby's optparse:
name = :divisor
help = "show divisor"
short = "-m"
opt.on(short, "--#{name} [STR]", help) do |val|
hash[:show_divisor] = true
hash[:divisor] = val if val
end
report << [name,short,help]
-- notice that my report list is built with the exact values of all
options, regardless of whether they're encountered or not. The I
simply walk through the report list to print a report for this run:
report.each do |name,short,help|
val = opts.name || "----"
STDERR.printf "--%s (%s)\t\%s\t%s\n", o, short, val, help
end if verbose
How can I group such reporting together with add_option in Optik?
Cheers,
Alexy
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