| 1 | # |
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| 2 | # ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | # > www.orxonox.net < |
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| 4 | # |
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| 5 | # This program is free software; you can redistribute it and/or |
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| 6 | # modify it under the terms of the GNU General Public License |
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| 7 | # as published by the Free Software Foundation; either version 2 |
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| 8 | # of the License, or (at your option) any later version. |
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| 9 | # |
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| 10 | # This program is distributed in the hope that it will be useful, |
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| 11 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | # GNU General Public License for more details. |
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| 14 | # |
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| 15 | # You should have received a copy of the GNU General Public License along |
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| 16 | # with this program; if not, write to the Free Software Foundation, |
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| 17 | # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 18 | # |
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| 19 | # |
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| 20 | # Author: |
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| 21 | # Reto Grieder |
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| 22 | # Description: |
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| 23 | # Separates a string of program flags like "--blubb -test -D AA". |
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| 24 | # " -" or " /" denotes the start of a flag. |
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| 25 | # The same sequence inside double quotation marks is being ignored. |
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| 26 | # Spaces not within quotes are cleaned meaningfully. |
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| 27 | # Note: |
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| 28 | # This macro cannot cope with semicolons in the flag string! |
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| 29 | |
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| 30 | FUNCTION(SEPARATE_FLAGS _flags _output_variable) |
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| 31 | # Visual studio (esp. IntelliSense) doesn't like dashes to specify arguments |
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| 32 | # Always use foward slashes instead |
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| 33 | IF(MSVC) |
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| 34 | SET(_argument_starter "/") |
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| 35 | ELSE() |
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| 36 | SET(_argument_starter "-") |
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| 37 | ENDIF(MSVC) |
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| 38 | |
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| 39 | SET(_flags_prep " ${_flags} -") |
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| 40 | # Separate the chunks |
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| 41 | STRING(REPLACE " " " ;" _flag_chunks "${_flags_prep}") # Max loop iterations |
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| 42 | SET(_flag_string) |
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| 43 | SET(_parsed_flags) |
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| 44 | # Loop is necessary because the regex engine is greedy |
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| 45 | FOREACH(_chunk ${_flag_chunks}) |
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| 46 | SET(_flag_string "${_flag_string}${_chunk}") |
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| 47 | # Replace all " -" and " /" inside quotation marks |
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| 48 | STRING(REGEX REPLACE "^(([^\"]*\"[^\"]*\")*[^\"]*\"[^\"]*) [/-]([^\"]*\")" |
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| 49 | "\\1@39535493@\\3" _flag_string "${_flag_string}") |
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| 50 | # Extract one flag if possible |
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| 51 | SET(_flag) |
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| 52 | STRING(REGEX REPLACE "^.* [/-](.+)( [/-].*$)" "${_argument_starter}\\1" _flag "${_flag_string}") |
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| 53 | STRING(REGEX REPLACE "^.* [/-](.+)( [/-].*$)" "\\2" _flag_string "${_flag_string}") |
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| 54 | IF(NOT _flag STREQUAL _flag_string) |
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| 55 | STRING(STRIP "${_flag}" _flag_stripped) |
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| 56 | LIST(APPEND _parsed_flags "${_flag_stripped}") |
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| 57 | ENDIF(NOT _flag STREQUAL _flag_string) |
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| 58 | ENDFOREACH(_chunk) |
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| 59 | |
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| 60 | # Re-replace all " -" and " /" inside quotation marks |
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| 61 | STRING(REGEX REPLACE "@39535493@" " -" _parsed_flags "${_parsed_flags}") |
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| 62 | SET(${_output_variable} "${_parsed_flags}" PARENT_SCOPE) |
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| 63 | ENDFUNCTION(SEPARATE_FLAGS) |
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