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platform_build/common/strings.mk

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to-upper and to-lower move to strings.mk So that config.mk can use these functions. Test: builds Change-Id: I6634226cbed56c34977803ff9c75b8d481c21c34
2018-09-22 07:39:37 +08:00
#
# Copyright (C) 2018 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
###########################################################
## Convert to lower case without requiring a shell, which isn't cacheable.
##
## $(1): string
###########################################################
to-lower=$(subst A,a,$(subst B,b,$(subst C,c,$(subst D,d,$(subst E,e,$(subst F,f,$(subst G,g,$(subst H,h,$(subst I,i,$(subst J,j,$(subst K,k,$(subst L,l,$(subst M,m,$(subst N,n,$(subst O,o,$(subst P,p,$(subst Q,q,$(subst R,r,$(subst S,s,$(subst T,t,$(subst U,u,$(subst V,v,$(subst W,w,$(subst X,x,$(subst Y,y,$(subst Z,z,$1))))))))))))))))))))))))))
###########################################################
## Convert to upper case without requiring a shell, which isn't cacheable.
##
## $(1): string
###########################################################
to-upper=$(subst a,A,$(subst b,B,$(subst c,C,$(subst d,D,$(subst e,E,$(subst f,F,$(subst g,G,$(subst h,H,$(subst i,I,$(subst j,J,$(subst k,K,$(subst l,L,$(subst m,M,$(subst n,N,$(subst o,O,$(subst p,P,$(subst q,Q,$(subst r,R,$(subst s,S,$(subst t,T,$(subst u,U,$(subst v,V,$(subst w,W,$(subst x,X,$(subst y,Y,$(subst z,Z,$1))))))))))))))))))))))))))
Change use of sanity-check to "test". Makes comment line more clear what the code does. Update language to comply with Android's inclusive language guidance See https://source.android.com/setup/contribute/respectful-code for reference BUG=162536543 Change-Id: Ie9694d987e57670874e4708c55ad40da518d672b
2020-07-31 06:11:54 +08:00
# Test to-lower and to-upper
to-upper and to-lower move to strings.mk So that config.mk can use these functions. Test: builds Change-Id: I6634226cbed56c34977803ff9c75b8d481c21c34
2018-09-22 07:39:37 +08:00
lower := abcdefghijklmnopqrstuvwxyz-_
upper := ABCDEFGHIJKLMNOPQRSTUVWXYZ-_
ifneq ($(lower),$(call to-lower,$(upper)))
$(error to-lower sanity check failure)
endif
ifneq ($(upper),$(call to-upper,$(lower)))
$(error to-upper sanity check failure)
endif
lower :=
upper :=
Move a few more string functions to strings.mk So they can be used in product.mk Bug: 80410283 Test: make Change-Id: Ic94754f6b48a3281ca1dd8c195a3410b543eb366
2018-10-03 20:10:54 +08:00
###########################################################
## Returns true if $(1) and $(2) are equal. Returns
## the empty string if they are not equal.
###########################################################
define streq
$(strip $(if $(strip $(1)),\
$(if $(strip $(2)),\
$(if $(filter-out __,_$(subst $(strip $(1)),,$(strip $(2)))$(subst $(strip $(2)),,$(strip $(1)))_),,true), \
),\
$(if $(strip $(2)),\
,\
true)\
))
endef
###########################################################
## Convert "a b c" into "a:b:c"
###########################################################
define normalize-path-list
$(subst $(space),:,$(strip $(1)))
endef
###########################################################
## Convert "a b c" into "a,b,c"
###########################################################
define normalize-comma-list
$(subst $(space),$(comma),$(strip $(1)))
endef
###########################################################
## Read the word out of a colon-separated list of words.
## This has the same behavior as the built-in function
## $(word n,str).
##
## The individual words may not contain spaces.
##
## $(1): 1 based index
## $(2): value of the form a:b:c...
###########################################################
define word-colon
$(word $(1),$(subst :,$(space),$(2)))
endef
###########################################################
strings.mk: Allow empty RHS values for inputs of collapse-pairs This CL is to make the function collapse-pairs(), which is applied to lists of "property=value" pairs, allow empty properties (i.e. lines of the form "empty.prop="). Currently, the function only allows empty properties at the end (see https://android-review.googlesource.com/c/platform/build/+/722908). So empty properties in the middle result in broken property files (e.g. "a=b c= d=e" is transformed to "a=b c=d=e", in which the property "c", which originally has no value, is interpreted as having the value "d=e", whereas the property "d", which originally has the value "e", is missing from the resulting property file). This CL revises the function so as to keep empty properties in the middle as is (e.g. it returns "a=b c= d=e" for the above example), while preserving the behavior for well-formed lists like "a=b c= d e = f". Bug: 152379493 Test: make Change-Id: I35faeaedc3bc42e56e01201baf7ea6805a610439
2020-04-01 04:07:24 +08:00
## Convert "a=b c= d e = f = g h=" into "a=b c=d e= f=g h="
Move a few more string functions to strings.mk So they can be used in product.mk Bug: 80410283 Test: make Change-Id: Ic94754f6b48a3281ca1dd8c195a3410b543eb366
2018-10-03 20:10:54 +08:00
##
## $(1): list to collapse
## $(2): if set, separator word; usually "=", ":", or ":="
## Defaults to "=" if not set.
###########################################################
define collapse-pairs
strings.mk: Allow empty RHS values for inputs of collapse-pairs This CL is to make the function collapse-pairs(), which is applied to lists of "property=value" pairs, allow empty properties (i.e. lines of the form "empty.prop="). Currently, the function only allows empty properties at the end (see https://android-review.googlesource.com/c/platform/build/+/722908). So empty properties in the middle result in broken property files (e.g. "a=b c= d=e" is transformed to "a=b c=d=e", in which the property "c", which originally has no value, is interpreted as having the value "d=e", whereas the property "d", which originally has the value "e", is missing from the resulting property file). This CL revises the function so as to keep empty properties in the middle as is (e.g. it returns "a=b c= d=e" for the above example), while preserving the behavior for well-formed lists like "a=b c= d e = f". Bug: 152379493 Test: make Change-Id: I35faeaedc3bc42e56e01201baf7ea6805a610439
2020-04-01 04:07:24 +08:00
$(strip \
Move a few more string functions to strings.mk So they can be used in product.mk Bug: 80410283 Test: make Change-Id: Ic94754f6b48a3281ca1dd8c195a3410b543eb366
2018-10-03 20:10:54 +08:00
$(eval _cpSEP := $(strip $(if $(2),$(2),=)))\
strings.mk: Allow empty RHS values for inputs of collapse-pairs This CL is to make the function collapse-pairs(), which is applied to lists of "property=value" pairs, allow empty properties (i.e. lines of the form "empty.prop="). Currently, the function only allows empty properties at the end (see https://android-review.googlesource.com/c/platform/build/+/722908). So empty properties in the middle result in broken property files (e.g. "a=b c= d=e" is transformed to "a=b c=d=e", in which the property "c", which originally has no value, is interpreted as having the value "d=e", whereas the property "d", which originally has the value "e", is missing from the resulting property file). This CL revises the function so as to keep empty properties in the middle as is (e.g. it returns "a=b c= d=e" for the above example), while preserving the behavior for well-formed lists like "a=b c= d e = f". Bug: 152379493 Test: make Change-Id: I35faeaedc3bc42e56e01201baf7ea6805a610439
2020-04-01 04:07:24 +08:00
$(eval _cpLHS :=)\
$(eval _cpRET :=)\
$(foreach w,$(subst $(space)$(_cpSEP),$(_cpSEP),$(strip \
$(subst $(_cpSEP),$(space)$(_cpSEP)$(space),$(1)))),\
$(if $(findstring $(_cpSEP),$(w)),\
$(eval _cpRET += $(_cpLHS))$(eval _cpLHS := $(w)),\
$(eval _cpRET += $(_cpLHS)$(w))$(eval _cpLHS :=)))\
$(if $(_cpLHS),$(_cpRET)$(space)$(_cpLHS),$(_cpRET))\
$(eval _cpSEP :=)\
$(eval _cpLHS :=)\
$(eval _cpRET :=))
Move a few more string functions to strings.mk So they can be used in product.mk Bug: 80410283 Test: make Change-Id: Ic94754f6b48a3281ca1dd8c195a3410b543eb366
2018-10-03 20:10:54 +08:00
endef
strings.mk: Allow empty RHS values for inputs of collapse-pairs This CL is to make the function collapse-pairs(), which is applied to lists of "property=value" pairs, allow empty properties (i.e. lines of the form "empty.prop="). Currently, the function only allows empty properties at the end (see https://android-review.googlesource.com/c/platform/build/+/722908). So empty properties in the middle result in broken property files (e.g. "a=b c= d=e" is transformed to "a=b c=d=e", in which the property "c", which originally has no value, is interpreted as having the value "d=e", whereas the property "d", which originally has the value "e", is missing from the resulting property file). This CL revises the function so as to keep empty properties in the middle as is (e.g. it returns "a=b c= d=e" for the above example), while preserving the behavior for well-formed lists like "a=b c= d e = f". Bug: 152379493 Test: make Change-Id: I35faeaedc3bc42e56e01201baf7ea6805a610439
2020-04-01 04:07:24 +08:00
# Sanity check for collapse-pairs.
ifneq (a=b c=d e= f=g h=,$(call collapse-pairs,a=b c= d e = f = g h=))
$(error collapse-pairs sanity check failure)
endif
ifneq (a:=b c:=d e:=f g:=h,$(call collapse-pairs,a:=b c:= d e :=f g := h,:=))
$(error collapse-pairs sanity check failure)
endif
Move a few more string functions to strings.mk So they can be used in product.mk Bug: 80410283 Test: make Change-Id: Ic94754f6b48a3281ca1dd8c195a3410b543eb366
2018-10-03 20:10:54 +08:00
###########################################################
## Given a list of pairs, if multiple pairs have the same
## first components, keep only the first pair.
##
## $(1): list of pairs
## $(2): the separator word, such as ":", "=", etc.
define uniq-pairs-by-first-component
$(eval _upbfc_fc_set :=)\
$(strip $(foreach w,$(1), $(eval _first := $(word 1,$(subst $(2),$(space),$(w))))\
$(if $(filter $(_upbfc_fc_set),$(_first)),,$(w)\
$(eval _upbfc_fc_set += $(_first)))))\
$(eval _upbfc_fc_set :=)\
$(eval _first:=)
endef