stri_unescape_unicode: Un-escape All Escape Sequences
Description
Un-escapes all known escape sequences
Usage
stri_unescape_unicode(str)
Arguments
|
character vector |
Details
Uses ICU facilities to un-escape Unicode character sequences.
The following ASCII standard escapes are recognized: \a, \b, \t, \n, \v, \?, \e, \f, \r, \", \', \\.
Moreover, the function understands the following ones: \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. We are working on that.
Value
Returns a character vector. If an escape sequence is ill-formed, 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')
## [1] "aą!2\n"