Unicode normalization functions are available in the stringi package on CRAN.
library(stringi)
nfd = stri_trans_nfd(str)
nfc = stri_trans_nfc(str)
nfkd = stri_trans_nfkc(str)
nfkc = stri_trans_nfkd(str)- Requires: stringi 0.2-2
- Docs: http://docs.rexamine.com/R-man/stringi/stri_trans_nf.html