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build: Move misc helpers to make/utility.mk.

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Rémi Bernon 2020-03-13 00:31:01 +01:00 • committed by Andrew Eikum
parent f0d1278458
commit 3d2a7a09af
2 changed files with 30 additions and 7 deletions
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28
make/utility.mk Normal file
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@ -0,0 +1,28 @@
empty =
space = $(empty) $(empty)
comma = ,
quote = '
double-quote = "
define newline
endef
escape = $(subst $(space),\$(space),$(subst $(double-quote),\$(double-quote),$(1)))
list-join = $(if $(2),$(3)$(subst $(space),$(1),$(strip $(2)))$(4))
list-quote = $(call list-join,$(quote)$(comma)$(quote),$(1),$(2)$(quote),$(quote)$(3))
list-double-quote = $(call list-join,$(double-quote)$(space)$(double-quote),$(1),$(2)$(double-quote),$(double-quote)$(3))
head = $(word 1,$(1))
tail = $(wordlist 2,$(words $(1)),$(1))
translate = $(if $(1),$(call translate,$(call tail,$(1)),$(call tail,$(2)),$$(subst $(call head,$(1)),$(call head,$(2)),$(3))),$(3))
reverse = $(if $(1),$(call reverse,$(call tail,$(1)) $(call head,$(1))))
[lower] := a b c d e f g h i j k l m n o p q r s t u v w x y z - .
[upper] := A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _ _
$(eval toupper = $(call translate,$([lower]),$([upper]),$$(1)))
$(eval tolower = $(call translate,$([upper]),$([lower]),$$(1)))