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  1. str1 <- "I don't know 'how' to remove these ' things"
  2. gsub("\\b'\\b(*SKIP)(*F)|'", "", str1, perl=TRUE)
Success #stdin #stdout 0.47s 79168KB
comments (?)
stdin 
Standard input is empty
stdout 
[1] "I don't know how to remove these  things"
https://ideone.com/q9h7RW
language:
R (R 3.5.2)
created:
9 years ago
visibility:
secret

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