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cmake/Help/command/separate_arguments.rst

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separate_arguments
------------------
Parse command-line arguments into a semicolon-separated list.
.. code-block:: cmake
separate_arguments(<variable> <mode> <args>)
Parses a space-separated string ``<args>`` into a list of items,
and stores this list in semicolon-separated standard form in ``<variable>``.
This function is intended for parsing command-line arguments.
The entire command line must be passed as one string in the
argument ``<args>``.
The exact parsing rules depend on the operating system.
They are specified by the ``<mode>`` argument which must
be one of the following keywords:
``UNIX_COMMAND``
Arguments are separated by by unquoted whitespace.
Both single-quote and double-quote pairs are respected.
A backslash escapes the next literal character (``\"`` is ``"``);
there are no special escapes (``\n`` is just ``n``).
``WINDOWS_COMMAND``
A Windows command-line is parsed using the same
syntax the runtime library uses to construct argv at startup. It
separates arguments by whitespace that is not double-quoted.
Backslashes are literal unless they precede double-quotes. See the
MSDN article `Parsing C Command-Line Arguments`_ for details.
``NATIVE_COMMAND``
Proceeds as in ``WINDOWS_COMMAND`` mode if the host system is Windows.
Otherwise proceeds as in ``UNIX_COMMAND`` mode.
.. _`Parsing C Command-Line Arguments`: https://msdn.microsoft.com/library/a1y7w461.aspx
.. code-block:: cmake
separate_arguments(<var>)
Convert the value of ``<var>`` to a semi-colon separated list. All
spaces are replaced with ';'. This helps with generating command
lines.