Escapes all Unicode (not ASCII-printable) code points.
Usage
stri_escape_unicode(str)
Arguments
str
character vector
Value
Returns a character vector.
Details
For non-printable and certain special (well-known,
see also Rman page Quotes)
ASCII characters the following
(also recognized in R) convention is used.
We get \a, \b, \t, \n, \v,
\f, \r, ", ', \\
or either {\uXXXX} (4 hex digits) or {\UXXXXXXXX} (8 hex digits)
otherwise.
As usual, any input string is converted to Unicode
before executing the escape process.