parse_arguments.cmake

#
# parse_arguments() taken from
# http://www.itk.org/Wiki/CMakeMacroParseArguments
# 
# 
#
macro(parse_arguments prefix arg_names option_names)
  set(DEFAULT_ARGS)
  foreach(arg_name ${arg_names})    
    set(${prefix}_${arg_name})
  endforeach()
  foreach(option ${option_names})
    set(${prefix}_${option} FALSE)
  endforeach()

  set(current_arg_name DEFAULT_ARGS)
  set(current_arg_list)
  foreach(arg ${ARGN})            
    set(larg_names ${arg_names})    
    list(FIND larg_names "${arg}" is_arg_name)                   
    if (is_arg_name GREATER -1)
      set(${prefix}_${current_arg_name} ${current_arg_list})
      set(current_arg_name ${arg})
      set(current_arg_list)
    else()
      set(loption_names ${option_names})    
      list(FIND loption_names "${arg}" is_option)            
      if(is_option GREATER -1)
        set(${prefix}_${arg} TRUE)
      else()
        set(current_arg_list ${current_arg_list} ${arg})
      endif()
    endif()
  endforeach()
  set(${prefix}_${current_arg_name} ${current_arg_list})
endmacro()