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argparse/docsrc/mutexes.rst
2015-06-20 17:34:07 +03:00

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Mutually exclusive groups
=========================
A group of options can be marked as mutually exclusive using ``:mutex(option, ...)`` method of the Parser class.
.. code-block:: lua
:linenos:
parser:mutex(
parser:flag "-q --quiet",
parser:flag "-v --verbose"
)
If more than one element of a mutually exclusive group is used, an error is raised.
::
$ lua script.lua -qv
::
Usage: script.lua ([-q] | [-v]) [-h]
Error: option '-v' can not be used together with option '-q'