mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-27 05:10:41 +00:00
81 lines
3.1 KiB
CMake
81 lines
3.1 KiB
CMake
# Copied from http://www.itk.org/Wiki/CMakeMacroParseArguments under
|
|
# http://creativecommons.org/licenses/by/2.5/.
|
|
#
|
|
# The PARSE_ARGUMENTS macro will take the arguments of another macro and define
|
|
# several variables. The first argument to PARSE_ARGUMENTS is a prefix to put on
|
|
# all variables it creates. The second argument is a list of names, and the
|
|
# third argument is a list of options. Both of these lists should be quoted. The
|
|
# rest of PARSE_ARGUMENTS are arguments from another macro to be parsed.
|
|
#
|
|
# PARSE_ARGUMENTS(prefix arg_names options arg1 arg2...)
|
|
#
|
|
# For each item in options, PARSE_ARGUMENTS will create a variable with that
|
|
# name, prefixed with prefix_. So, for example, if prefix is MY_MACRO and
|
|
# options is OPTION1;OPTION2, then PARSE_ARGUMENTS will create the variables
|
|
# MY_MACRO_OPTION1 and MY_MACRO_OPTION2. These variables will be set to true if
|
|
# the option exists in the command line or false otherwise.
|
|
#
|
|
#For each item in arg_names, PARSE_ARGUMENTS will create a variable with that
|
|
#name, prefixed with prefix_. Each variable will be filled with the arguments
|
|
#that occur after the given arg_name is encountered up to the next arg_name or
|
|
#the end of the arguments. All options are removed from these
|
|
#lists. PARSE_ARGUMENTS also creates a prefix_DEFAULT_ARGS variable containing
|
|
#the list of all arguments up to the first arg_name encountered.
|
|
#
|
|
#Here is a simple, albeit impractical, example of using PARSE_ARGUMENTS that
|
|
#demonstrates its behavior.
|
|
#
|
|
# SET(arguments
|
|
# hello OPTION3 world
|
|
# LIST3 foo bar
|
|
# OPTION2
|
|
# LIST1 fuz baz
|
|
# )
|
|
#
|
|
# PARSE_ARGUMENTS(ARG "LIST1;LIST2;LIST3" "OPTION1;OPTION2;OPTION3" ${arguments})
|
|
#
|
|
# PARSE_ARGUMENTS creates 7 variables and sets them as follows:
|
|
# ARG_DEFAULT_ARGS: hello;world
|
|
# ARG_LIST1: fuz;baz
|
|
# ARG_LIST2:
|
|
# ARG_LIST3: foo;bar
|
|
# ARG_OPTION1: FALSE
|
|
# ARG_OPTION2: TRUE
|
|
# ARG_OPTION3: TRUE
|
|
#
|
|
# If you don't have any options, use an empty string in its place.
|
|
# PARSE_ARGUMENTS(ARG "LIST1;LIST2;LIST3" "" ${arguments})
|
|
# Likewise if you have no lists.
|
|
# PARSE_ARGUMENTS(ARG "" "OPTION1;OPTION2;OPTION3" ${arguments})
|
|
|
|
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)
|