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# Parse arguments passed to a function into several lists separated by
# upper-case identifiers and options that do not have an associated list e.g.:
#
# SET(arguments
# hello OPTION3 world
# LIST3 foo bar
# OPTION2
# LIST1 fuz baz
# )
# PARSE_ARGUMENTS(ARG "LIST1;LIST2;LIST3" "OPTION1;OPTION2;OPTION3" ${arguments})
#
# results in 7 distinct variables:
# * ARG_DEFAULT_ARGS: hello;world
# * ARG_LIST1: fuz;baz
# * ARG_LIST2:
# * ARG_LIST3: foo;bar
# * ARG_OPTION1: FALSE
# * ARG_OPTION2: TRUE
# * ARG_OPTION3: TRUE
#
# taken from http://www.cmake.org/Wiki/CMakeMacroParseArguments
MACRO(PARSE_ARGUMENTS prefix arg_names option_names)
SET(DEFAULT_ARGS)
FOREACH(arg_name ${arg_names})
SET(${prefix}_${arg_name})
ENDFOREACH(arg_name)
FOREACH(option ${option_names})
SET(${prefix}_${option} FALSE)
ENDFOREACH(option)
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 (is_arg_name GREATER -1)
SET(loption_names ${option_names})
LIST(FIND loption_names "${arg}" is_option)
IF (is_option GREATER -1)
SET(${prefix}_${arg} TRUE)
ELSE (is_option GREATER -1)
SET(current_arg_list ${current_arg_list} ${arg})
ENDIF (is_option GREATER -1)
ENDIF (is_arg_name GREATER -1)
ENDFOREACH(arg)
SET(${prefix}_${current_arg_name} ${current_arg_list})
ENDMACRO(PARSE_ARGUMENTS)
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