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| # - Look for GNU Bison, the parser generator
| | {{CMake/Template/Moved}} |
| # Based off a news post from Andy Cedilnik at Kitware
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| # Defines the following:
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| # BISON_EXECUTABLE - path to the bison executable
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| # BISON_FILE - parse a file with bison
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| # BISON_PREFIX_OUTPUTS - Set to true to make BISON_FILE produce prefixed
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| # symbols in the generated output based on filename.
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| # So for ${filename}.y, you'll get ${filename}parse(), etc.
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| # instead of yyparse().
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| # BISON_GENERATE_DEFINES - Set to true to make BISON_FILE output the matching
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| # .h file for a .c file. You want this if you're using
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| # flex.
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|
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| IF(NOT DEFINED BISON_PREFIX_OUTPUTS)
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| SET(BISON_PREFIX_OUTPUTS FALSE)
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| ENDIF(NOT DEFINED BISON_PREFIX_OUTPUTS)
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|
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| IF(NOT DEFINED BISON_GENERATE_DEFINES)
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| SET(BISON_GENERATE_DEFINES FALSE)
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| ENDIF(NOT DEFINED BISON_GENERATE_DEFINES)
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|
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| IF(NOT BISON_EXECUTABLE)
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| MESSAGE(STATUS "Looking for bison")
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| FIND_PROGRAM(BISON_EXECUTABLE bison)
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| IF(BISON_EXECUTABLE)
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| MESSAGE(STATUS "Looking for bison -- ${BISON_EXECUTABLE}")
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| ENDIF(BISON_EXECUTABLE)
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| ENDIF(NOT BISON_EXECUTABLE)
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|
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| IF(BISON_EXECUTABLE)
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| MACRO(BISON_FILE FILENAME)
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| GET_FILENAME_COMPONENT(PATH "${FILENAME}" PATH)
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| IF("${PATH}" STREQUAL "")
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| SET(PATH_OPT "")
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| ELSE("${PATH}" STREQUAL "")
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| SET(PATH_OPT "/${PATH}")
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| ENDIF("${PATH}" STREQUAL "")
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| GET_FILENAME_COMPONENT(HEAD "${FILENAME}" NAME_WE)
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| IF(NOT EXISTS "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}")
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| FILE(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}")
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| ENDIF(NOT EXISTS "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}")
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| IF(BISON_PREFIX_OUTPUTS)
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| SET(PREFIX "${HEAD}")
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| ELSE(BISON_PREFIX_OUTPUTS)
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| SET(PREFIX "yy")
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| ENDIF(BISON_PREFIX_OUTPUTS)
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| SET(OUTFILE "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}/${HEAD}.tab.c")
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| IF(BISON_GENERATE_DEFINES)
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| SET(HEADER "${CMAKE_CURRENT_BINARY_DIR}${PATH_OPT}/${HEAD}.tab.h")
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| ADD_CUSTOM_COMMAND(
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| OUTPUT "${OUTFILE}" "${HEADER}"
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| COMMAND "${BISON_EXECUTABLE}"
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| ARGS "--name-prefix=${PREFIX}"
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| "--defines"
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| "--output-file=${OUTFILE}"
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| "${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}"
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| DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}")
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| SET_SOURCE_FILES_PROPERTIES("${OUTFILE}" "${HEADER}" PROPERTIES GENERATED TRUE)
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| SET_SOURCE_FILES_PROPERTIES("${HEADER}" PROPERTIES HEADER_FILE_ONLY TRUE)
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| ELSE(BISON_GENERATE_DEFINES)
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| ADD_CUSTOM_COMMAND(
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| OUTPUT "${OUTFILE}"
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| COMMAND "${BISON_EXECUTABLE}"
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| ARGS "--name-prefix=${PREFIX}"
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| "--output-file=${OUTFILE}"
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| "${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}"
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| DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}")
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| SET_SOURCE_FILES_PROPERTIES("${OUTFILE}" PROPERTIES GENERATED TRUE)
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| ENDIF(BISON_GENERATE_DEFINES)
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| ENDMACRO(BISON_FILE)
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| ENDIF(BISON_EXECUTABLE)
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| ENDIF(BISON_EXECUTABLE)
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| {{CMake/Template/Footer}}
| | This page has moved [https://gitlab.kitware.com/cmake/community/wikis/contrib/modules/UseBison here]. |
| [[Category:CMakeMacro]]
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