问题
Running R CMD check --as-cran
gives
Portable packages must use only ASCII characters in their R code,
except perhaps in comments.
Use \uxxxx escapes for other characters.
What are \uxxxx
, and more importantly, how can I convert non ASCII characters into them?
What I know so far
?iconv
is very informative, and looks powerful, but I see nothing of the form\u
- this python documentation indicates
\uxxxx
are
Character with 16-bit hex value xxxx (Unicode only)
Question
How can I convert non-ASCII characters into character representations of the form \uxxxx
Some examples c("¤", "£", "€", "¢", "¥", "₧", "ƒ")
回答1:
You have stri_escape_unicode
from stringi to escape unicode:
stringi::stri_escape_unicode(c("¤", "£", "€", "¢", "¥", "₧", "ƒ"))
## [1] "\\u00a4" "\\u00a3" "\\u20ac" "\\u00a2" "\\u00a5" "P" "\\u0192"
I have an addin based on that to remove non ascii characters between quotes in function here : https://github.com/dreamRs/prefixer
来源:https://stackoverflow.com/questions/60723970/convert-non-ascii-to-character-representations-beginning-with-backslash-u-u-i