Description Usage Format References See Also Examples
Backreferences for replacement operations. These are used by replacement
functions such as sub
and
stri_replace_first_regex
, and by the stringi
and stringr
match functions such as
stri_match_first_regex
.
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An object of class regex
(inherits from character
) of length 1.
http://www.regular-expressions.info/backref.html and http://www.rexegg.com/regex-capture.html
capture
, for creating capture groups that can be
referred to.
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