how to implement number argument?

[xhawk18]

e.g.
gcc --std=c++20 -O0
gcc --std=c++20 -O1
gcc --std=c++20 -O2

Can I write docotp USAGE like this?
gcc [--std=<ver>] [-O (0|1|2)]
I seems not work.

[Sylvain303]

Hello @xhawk18

I will suppose you've read http://docopt.org/

So docopt doesn't validate argument, it's up to your code to do so:

In case you missed the fork:

pip install docopt-ng

"""
Usage: ./test-docopt-number.py  [--std=<ver>] [-O NUM_OPTIMIZE]
"""
from docopt import docopt
args = docopt(__doc__)
print(args)


if args['-O']:
    if args['NUM_OPTIMIZE'].isdigit():
        optimization = int(args['NUM_OPTIMIZE'])
    else:
        raise RuntimeError(f"argument NUM_OPTIMIZE must be an int: {args['NUM_OPTIMIZE']}")

    print(f"optimization: {optimization}")

Was it a feature request or an help support?

If it was for help request, stackoverflow would have been a more useful source of information. 😉

[xhawk18]

Thank you @Sylvain303 ！

It may be a feature request 😉

[Sylvain303]

Thank you @Sylvain303 ！

It may be a feature request 😉

You're welcome. 😁

Unfortunately this main github repository is deprecated / stalled 😢 see related issue #371
Until someone will takeover or being granted the code here. I'm afraid issues will stack forever for the python version.
For other languages see related repository. 😉

the forked python code ➡️ https://github.com/bazaar-projects/docopt-ng