Function join_options

src/click/formatting.py:302–320

Given a list of option strings this joins them in the most appropriate way and returns them in the form ``(formatted_string, any_prefix_is_slash)`` where the second item in the tuple is a flag that indicates if any of the option prefixes was a slash.

(options: cabc.Iterable[str])

def join_options(options: cabc.Iterable[str]) -> tuple[str, bool]:
    """Given a list of option strings this joins them in the most appropriate
    way and returns them in the form ``(formatted_string,
    any_prefix_is_slash)`` where the second item in the tuple is a flag that
    indicates if any of the option prefixes was a slash.
    """
    rv = []
    any_prefix_is_slash = False

    for opt in options:
        prefix = _split_opt(opt)[0]

        if prefix == "/":
            any_prefix_is_slash = True

        rv.append((len(prefix), opt))

    rv.sort(key=lambda x: x[0])
    return ", ".join(x[1] for x in rv), any_prefix_is_slash