#
# Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
# All rights reserved.
# This component and the accompanying materials are made available
# under the terms of the License "Eclipse Public License v1.0"
# which accompanies this distribution, and is available
# at the URL "http://www.eclipse.org/legal/epl-v10.html".
#
# Initial Contributors:
# Nokia Corporation - initial contribution.
#
# Contributors:
#
# Description:
# operators for boolean logic, including a case
# sensitive equality operator
#
define not
$(if $1,,1)
endef
define xor
$(and $(or $1,$2),$(call not,$1,$2))
endef
define equal
$(if $(1:$(2)=),,$(if $(2:$(1)=),,1))
endef
define equal_debug
$(info equal $1 $2 )$(if $(1:$(2)=),,$(if $(2:$(1)=),,1))
endef
# $(call isoneof,fred, alice bob james fred joe) # returns 1
define isoneof
$(if $2,$(or $(call equal,$1,$(word 1,$2)),$(call isoneof,$(1),$(wordlist 2,$(words $(2)),$(2)))),)
endef
define isoneof_debug
$(info one:$1 LIST: $2 nextCAR: $(word 1,$2) nextCDR: $(wordlist 2,$(words $2),$2))$(if $2,$(or $(call equal,$1,$(word 1,$2)),$(call isoneof,$(1),$(wordlist 2,$(words $(2)),$(2)))),)
endef
#testboolean::
# @echo -e "(call equal,dll,dll) : $(call equal,dll,dll)"
# @echo -e "(call equal,,dll) : $(call equal,,dll)"
# @echo -e "(call equal,thingdllthing,dll) : $(call equal,thingdllthing,dll)"
# @echo -e "(call equal,dll,thingdllthing) : $(call equal,dll,thingdllthing)"
# @echo -e "(call equal,dll,) : $(call equal,dll,)"
# @echo -e "(call equal,,) : $(call equal,,)"
# @echo -e "(call equal,dlldlldll,dll) : $(call equal,dlldlldll,dll)"
# @echo -e "(call equal,dll,dlldlldll) : $(call equal,dll,dlldlldll)"
# @echo ""
# @echo -e '(call isoneof,fred, nobby cheery fred detritus ) : $(call isoneof,fred, nobby cheery fred detritus) '
# @echo -e '(call isoneof,nobby, cheery fred carrot angiur) : $(call isoneof,nobby, cheery fred carrot angiur) '
# @echo -e '(call isoneof,vimes,vetinari) : $(call isoneof,vimes,vetinari) '
# @echo -e '(call isoneof,vetinari,) : $(call isoneof,vetinari,) '
# @echo -e '(call isoneof,vetinari,vetinari) : $(call isoneof,vetinari,vetinari) '