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45 lines
1.5 KiB
CMake
45 lines
1.5 KiB
CMake
# File containing various utilities
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# Converts a CMake list to a string containing elements separated by spaces
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function(TO_LIST_SPACES _LIST_NAME OUTPUT_VAR)
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set(NEW_LIST_SPACE)
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foreach(ITEM ${${_LIST_NAME}})
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set(NEW_LIST_SPACE "${NEW_LIST_SPACE} ${ITEM}")
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endforeach()
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string(STRIP ${NEW_LIST_SPACE} NEW_LIST_SPACE)
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set(${OUTPUT_VAR} "${NEW_LIST_SPACE}" PARENT_SCOPE)
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endfunction()
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# Appends a lis of item to a string which is a space-separated list, if they don't already exist.
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function(LIST_SPACES_APPEND_ONCE LIST_NAME)
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string(REPLACE " " ";" _LIST ${${LIST_NAME}})
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list(APPEND _LIST ${ARGN})
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list(REMOVE_DUPLICATES _LIST)
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to_list_spaces(_LIST NEW_LIST_SPACE)
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set(${LIST_NAME} "${NEW_LIST_SPACE}" PARENT_SCOPE)
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endfunction()
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# Convinience function that does the same as LIST(FIND ...) but with a TRUE/FALSE return value.
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# Ex: IN_STR_LIST(MY_LIST "Searched item" WAS_FOUND)
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function(IN_STR_LIST LIST_NAME ITEM_SEARCHED RETVAL)
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list(FIND ${LIST_NAME} ${ITEM_SEARCHED} FIND_POS)
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if(${FIND_POS} EQUAL -1)
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set(${RETVAL} FALSE PARENT_SCOPE)
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else()
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set(${RETVAL} TRUE PARENT_SCOPE)
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endif()
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endfunction()
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# Returns a list of arguments that evaluate to true
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function(collect_true output_var output_count_var)
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set(${output_var})
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foreach(option_var IN LISTS ARGN)
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if(${option_var})
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list(APPEND ${output_var} ${option_var})
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endif()
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endforeach()
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set(${output_var} ${${output_var}} PARENT_SCOPE)
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list(LENGTH ${output_var} ${output_count_var})
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set(${output_count_var} ${${output_count_var}} PARENT_SCOPE)
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endfunction()
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