GetSubdirectories.h

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get_subdirectories(){ Name)
  set(Name)
  file(GLOB LS *)
  
  # continue process only if there is some file to process
  if (LS)
    foreach(FILENAME ${LS})
      if(IS_DIRECTORY ${FILENAME} AND EXISTS ${FILENAME}/CMakeLists.txt)
  get_directory_name(${FILENAME} DIRNAME)
  # ignore .svn
  if (NOT ${DIRNAME} STREQUAL ".svn")
      set(${Name} ${${Name}} ${DIRNAME})
  endif()
      endif()
    endforeach()

    # create the copy of Name list
    set(NameSorted)
    foreach(filename ${Name})
      string(TOLOWER "${filename}" filenameLower)
      # build a new variable (map) to associate the key filenameLower to the real filename
      set("map_${filenameLower}" "${filename}")
      # add the key to a specific list
      set(NameSorted ${NameSorted} "${filenameLower}")
    endforeach()

    # sort the key list (all lowercase)
    list(SORT NameSorted)
    
    foreach(filenameLower ${NameSorted})    
      # get the filename from the lower case name
      set(Name ${map_${filenameLower}})
    endforeach()  
  endif()
  
end(){)