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# Define some doxygen related macros.
# Originally taken from https://habr.com/ru/articles/133512/
MACRO(CONFIGURE_DOXYGEN_FILE DOXYGEN_CONFIG_FILE FILE_NAME_SUFFIX)
IF(EXISTS ${PROJECT_SOURCE_DIR}/${DOXYGEN_CONFIG_FILE})
FILE(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/doxy-${FILE_NAME_SUFFIX}.conf)
FILE(READ ${PROJECT_SOURCE_DIR}/${DOXYGEN_CONFIG_FILE} DOXYFILE_CONTENTS)
STRING(REGEX REPLACE ";" "\\\\;" DOXYFILE_CONTENTS "${DOXYFILE_CONTENTS}")
STRING(REGEX REPLACE "\n" ";" DOXYFILE_LINES "${DOXYFILE_CONTENTS}")
LIST(LENGTH DOXYFILE_LINES ROW)
MATH(EXPR ROW "${ROW} - 1")
FOREACH(I RANGE ${ROW})
LIST(GET DOXYFILE_LINES ${I} LINE)
IF(LINE STRGREATER "")
STRING(REGEX MATCH "^[a-zA-Z]([^ ])+" DOXY_PARAM ${LINE})
IF(DEFINED DOXY_${DOXY_PARAM})
STRING(REGEX REPLACE "=([^\n])+" "= ${DOXY_${DOXY_PARAM}}" LINE ${LINE})
ENDIF(DEFINED DOXY_${DOXY_PARAM})
ENDIF()
FILE(APPEND ${CMAKE_CURRENT_BINARY_DIR}/doxy-${FILE_NAME_SUFFIX}.conf "${LINE}\n")
ENDFOREACH()
ELSE()
MESSAGE(SEND_ERROR "Doxygen configuration file '${DOXYGEN_CONFIG_FILE}' not found. Documentation will not be generated")
ENDIF()
ENDMACRO(CONFIGURE_DOXYGEN_FILE)
MACRO(ADD_DOCUMENTATION TARGET DOXYGEN_CONFIG_FILE)
FIND_PACKAGE(Doxygen)
IF(DOXYGEN_FOUND)
CONFIGURE_DOXYGEN_FILE(${DOXYGEN_CONFIG_FILE} ${TARGET})
ADD_CUSTOM_TARGET(${TARGET} COMMAND ${DOXYGEN_EXECUTABLE} ${CMAKE_CURRENT_BINARY_DIR}/doxy-${TARGET}.conf)
ELSE(DOXYGEN_FOUND)
MESSAGE(STATUS "Doxygen not found. Documentation will not be generated")
ENDIF(DOXYGEN_FOUND)
ENDMACRO(ADD_DOCUMENTATION)
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