makefile truncate string
Removes leading and trailing whitespace from string and replaces each internal sequence of one or more whitespace characters with a single space. Thus, ' $(strip a b c ) ' results in ' a b c '. The function strip can be very useful when u, You can try something like: MY_VAR := $(firstword $(subst :, ,$(MY_VAR)). Note this requires that "cccccc" does not contain whitespace., Well, it can be done, but it's pretty messy to implement by hand. The easiest thing to do is to get the GNU Make Standard Library, which has a ..., No need to put double quotes around VAR1 and VAR2. And you need to use export if you want to put VAR1 and VAR2 above all:, I can't think of a good way to drop two characters offhand but you can use the fact that : isn't legal in a Windows file path/name and do ..., The last shell expansion of shell variable FOO must be escaped ( $$ ). And if you want to suppress the echo of the recipe, put the @ at the ..., I would probably do this: foo := $(shell git describe --always --abbrev=6 | cut -c 1-6).,This seems to work: XILINX_PATH = $(shell which xst | sed 's%bin-/lin-(64-)*/xst%%'). Note that the * really ought to be ? for the sake of tidiness, but I'm having ... , # Retrieves a host part of the given string (without port). # Param: # 1. String to parse in form 'host[:port]'. host = $(firstword $(subst :, ,$1)) ...,Functions allow you to do text processing in the makefile to compute the files to .... in a conditional to test for the presence of a specific substring in a given string.
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 makefile truncate string 相關參考資料
GNU make: Text Functions
Removes leading and trailing whitespace from string and replaces each internal sequence of one or more whitespace characters with a single space. Thus, ' $(strip a b c ) ' results in ' a ... https://www.gnu.org How to trim a string in makefile? - Stack Overflow
You can try something like: MY_VAR := $(firstword $(subst :, ,$(MY_VAR)). Note this requires that "cccccc" does not contain whitespace. https://stackoverflow.com Makefile: return first two characters of a string - Stack Overflow
Well, it can be done, but it's pretty messy to implement by hand. The easiest thing to do is to get the GNU Make Standard Library, which has a ... https://stackoverflow.com Bash - String manipulation in Makefile - Stack Overflow
No need to put double quotes around VAR1 and VAR2. And you need to use export if you want to put VAR1 and VAR2 above all: https://stackoverflow.com Remove first two chars from string in makefile? - Stack Overflow
I can't think of a good way to drop two characters offhand but you can use the fact that : isn't legal in a Windows file path/name and do ... https://stackoverflow.com How to remove substring in makefile - Stack Overflow
The last shell expansion of shell variable FOO must be escaped ( $$ ). And if you want to suppress the echo of the recipe, put the @ at the ... https://stackoverflow.com Extract substring of 6 characters using gnu make - Stack Overflow
I would probably do this: foo := $(shell git describe --always --abbrev=6 | cut -c 1-6). https://stackoverflow.com Cutting a string after occurrence of sub-string in a Makefile ...
This seems to work: XILINX_PATH = $(shell which xst | sed 's%bin-/lin-(64-)*/xst%%'). Note that the * really ought to be ? for the sake of tidiness, but I'm having ... https://stackoverflow.com How do I split a string in make? - Stack Overflow
# Retrieves a host part of the given string (without port). # Param: # 1. String to parse in form 'host[:port]'. host = $(firstword $(subst :, ,$1)) ... https://stackoverflow.com GNU make - Functions for Transforming Text
Functions allow you to do text processing in the makefile to compute the files to .... in a conditional to test for the presence of a specific substring in a given string. https://ftp.gnu.org |