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add utils.parse.argument_spec_human() for usage strings

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jesopo 2020-01-25 22:56:56 +00:00
parent bd33ea5d8a
commit 0c28d63822
1 changed files with 13 additions and 0 deletions
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13
src/utils/parse.py
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@ -232,3 +232,16 @@ def argument_spec(spec: str) -> typing.List[SpecArgument]:
argument_type_name, exported)) argument_type_name, exported))
out.append(SpecArgument(optional, argument_types)) out.append(SpecArgument(optional, argument_types))
return out return out
def argument_spec_human(spec: typing.List[SpecArgument]) -> str:
out: typing.List[str] = []
for spec_argument in spec:
names = [t.name() or t.type for t in spec_argument.types]
names = list(filter(None, names))
if spec_argument.optional:
format = "[%s]"
else:
format = "<%s>"
out.append(format % "|".join(names))
return " ".join(out)