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  1. x <- c('marisa monte', 'dru hill', '2pac', 'rã¶yksopp', 'cafã© del mar', 'maria bethã¢nia')
  2. grep("[^a-zA-Z0-9[:space:]]", x)
Success #stdin #stdout 0.27s 38904KB
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[1] 4 5 6
https://ideone.com/T3IbcK
language:
R (R 3.5.2)
created:
3 years ago
visibility:
secret

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