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100 lines
3.4 KiB
100 lines
3.4 KiB
2 years ago
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# @HEADER
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# ************************************************************************
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#
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# TriBITS: Tribal Build, Integrate, and Test System
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# Copyright 2013 Sandia Corporation
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#
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# Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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# the U.S. Government retains certain rights in this software.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# 3. Neither the name of the Corporation nor the names of the
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
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# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# ************************************************************************
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# @HEADER
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# @FUNCTION: join()
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#
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# Join a set of strings into a single string using a join string.
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#
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# Usage::
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#
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# join(<outputStrVar> "<sepStr>" <quoteElements>
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# "<string0>" "<string1>" ...)
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#
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# Arguments:
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#
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# ``<outputStrVar>``
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#
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# The name of a variable that will hold the output string.
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#
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# ``"<sepStr>"``
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#
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# A string to use to join the list of strings.
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#
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# ``<quoteElements>``
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#
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# If ``TRUE``, then each ``<stringi>`` is quoted using an escaped quote
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# char ``\"``. If ``FALSE`` then no escaped quote is used.
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#
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# ``"<string0>" "<string1>" ...``
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#
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# Zero or more string arguments to be joined.
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#
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# On output, the variable ``<outputStrVar>`` is set to::
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#
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# "<string0><sepStr><string1><sepStr>..."
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#
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# If ``<quoteElements>=TRUE``, then ``<outputStrVar>`` is set to::
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#
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# "\"<string0>\"<sepStr>\"<string1>\"<sepStr>..."
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#
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# For example, the latter can be used to set up a set of command-line
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# arguments given a CMake array like::
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#
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# join(CMND_LINE_ARGS " " TRUE ${CMND_LINE_ARRAY})
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#
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# WARNING: Be careful to quote string arguments that have spaces because CMake
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# interprets those as array boundaries.
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#
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function(join OUTPUT_STRING_VAR SEP_STR QUOTE_ELEMENTS)
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set(QUOTE_CHAR)
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if (QUOTE_ELEMENTS)
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set(QUOTE_CHAR "\"")
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endif()
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set(OUTPUT_STRING "")
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foreach(STRING_VAL ${ARGN})
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if (OUTPUT_STRING STREQUAL "")
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set(OUTPUT_STRING "${QUOTE_CHAR}${STRING_VAL}${QUOTE_CHAR}")
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else()
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set(OUTPUT_STRING "${OUTPUT_STRING}${SEP_STR}${QUOTE_CHAR}${STRING_VAL}${QUOTE_CHAR}")
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endif()
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endforeach()
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set(${OUTPUT_STRING_VAR} "${OUTPUT_STRING}" PARENT_SCOPE)
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endfunction()
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