[英]Set locale to system default UTF-8
When running R inside rApache, the locale is inherited from the Apache webserver, and therefore Sys.getlocale()
is always equal to "C"
. 在rApache中运行R时,语言环境继承自Apache Web服务器,因此Sys.getlocale()
始终等于"C"
。 I would like my web application to use UTF8
, so I use: 我希望我的Web应用程序使用UTF8
,所以我使用:
Sys.setlocale("LC_ALL", 'en_US.UTF-8')
However this doesn't work on machines that do not have this locale available: 但是,这不适用于没有此区域设置的计算机:
1: Setting LC_CTYPE failed, using "C"
2: Setting LC_COLLATE failed, using "C"
3: Setting LC_TIME failed, using "C"
4: Setting LC_MESSAGES failed, using "C"
5: Setting LC_MONETARY failed, using “C”
Is there any way to use Sys.setlocale
to set the locale to the system default UTF-8
? 有没有办法使用Sys.setlocale
将语言环境设置为系统默认的UTF-8
? Ie something that would also work on Windows or a German Linux? 即在Windows或德语Linux上也可以使用的东西?
Answering my own question: On Ubuntu the default LANG
is defined in /etc/default/locale
: 回答我自己的问题:在Ubuntu上,默认的LANG
在/etc/default/locale
定义:
jeroen@dev:~⟫ cat /etc/default/locale
# Created by cloud-init v. 0.7.7 on Wed, 29 Jun 2016 11:02:51 +0000
LANG="en_US.UTF-8"
So in R we could do something like: 所以在R中我们可以做类似的事情:
readRenviron("/etc/default/locale")
LANG <- Sys.getenv("LANG")
if(nchar(LANG))
Sys.setlocale("LC_ALL", LANG)
Apache also has a line in /etc/apache2/envvars
that can be uncommented to enable this. Apache在/etc/apache2/envvars
中也有一行可以取消注释以启用它。
尝试这个:
Sys.setlocale(category = "LC_ALL", locale = "English_United States.1252")
I guess you need to make a check for the OS. 我想你需要检查操作系统。 The locale names differ by OS, see the examples at the help file. 区域设置名称因操作系统而异,请参阅帮助文件中的示例。
?Sys.getlocale()
Examples
Sys.getlocale()
Sys.getlocale("LC_TIME")
## Not run:
Sys.setlocale("LC_TIME", "de") # Solaris: details are OS-dependent
Sys.setlocale("LC_TIME", "de_DE.utf8") # Modern Linux etc.
Sys.setlocale("LC_TIME", "de_DE.UTF-8") # ditto
Sys.setlocale("LC_TIME", "de_DE") # OS X, in UTF-8
Sys.setlocale("LC_TIME", "German") # Windows
## End(Not run)
Sys.getlocale("LC_PAPER") # may or may not be set
## Not run:
Sys.setlocale("LC_COLLATE", "C") # turn off locale-specific sorting,
# usually, but not on all platforms
## End(Not run)
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