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tools: Support string upper/lower case in make

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Implement UPPER_CASE/LOWER_CASE function in pure make, usage:
```
UPPER = $(call UPPER_CASE,$(xxx))
```

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
This commit is contained in:
Huang Qi 2023-06-02 17:34:53 +08:00 committed by Alan Carvalho de Assis
parent 59450bf9a9
commit 4c9e11d559
1 changed files with 11 additions and 0 deletions
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11
tools/Config.mk
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@ -683,3 +683,14 @@ ifeq ($(CONFIG_CYGWIN_WINTOOL),y)
else
CONVERT_PATH = $1
endif
# Upper/Lower case string, add the `UL` prefix to private function
ULPOP = $(wordlist 3,$(words $(1)),$(1))
ULSUB = $(subst $(word 1,$(1)),$(word 2,$(1)),$(2))
ULMAP = $(if $(1),$(call ULSUB,$(1),$(call ULMAP,$(call ULPOP,$(1)),$(2))),$(2))
UPPERMAP = a A b B c C d D e E f F g G h H i I j J k K l L m M n N o O p P q Q r R s S t T u U v V w W x X y Y z Z
LOWERMAP = A a B b C c D d E e F f G g H h I i J j K k L l M m N n O o P p Q q R r S s T t U u V v W w X x Y y Z z
UPPER_CASE = $(call ULMAP,$(UPPERMAP),$(1))
LOWER_CASE = $(call ULMAP,$(LOWERMAP),$(1))