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  1. vec = c("POP MUSIC",  "TOP THE POPS", "POPEYE", "MARY POPPINS") 
  2. grep("(?i)\\bPOPS?\\b", vec, value = TRUE)
Success #stdin #stdout 0.44s 22824KB
comments ()
stdin 
Standard input is empty
stdout 
[1] "POP MUSIC"    "TOP THE POPS"
https://ideone.com/A28Ucm
language:
R (R 3.5.2)
created:
9 years ago
visibility:
secret

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