stri_unescape_unicode {stringi} | R Documentation |
Un-escape All Escape Sequences
Description
Un-escapes all known escape sequences.
Usage
stri_unescape_unicode(str)
Arguments
str |
character vector |
Details
Uses ICU's facilities to un-escape Unicode character sequences.
The following escape sequences are recognized:
\a
, \b
, \t
, \n
, \v
, \?
,
\e
, \f
, \r
, \"
, \'
, \\
,
\uXXXX
(4 hex digits),
\UXXXXXXXX
(8 hex digits),
\xXX
(1-2 hex digits),
\ooo
(1-3 octal digits),
\cX
(control-X; X is masked with 0x1F).
For \xXX
and \ooo
, beware of non-valid UTF-8 byte sequences.
Note that some versions of R on Windows cannot handle
characters defined with \UXXXXXXXX
.
Value
Returns a character vector.
If an escape sequence is ill-formed,
the result will be NA
and a warning will be given.
Author(s)
Marek Gagolewski and other contributors
See Also
The official online manual of stringi at https://stringi.gagolewski.com/
Gagolewski M., stringi: Fast and portable character string processing in R, Journal of Statistical Software 103(2), 2022, 1-59, doi:10.18637/jss.v103.i02
Other escape:
stri_escape_unicode()
Examples
stri_unescape_unicode('a\\u0105!\\u0032\\n')