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  1. X <- "I'm not that good at regex yet, but am getting better!"
  2. strsplit(X, "[[:space:]]|(?=(?![',])[[:punct:]])", perl=TRUE)
Success #stdin #stdout 0.22s 39252KB
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[[1]]
 [1] "I'm"     "not"     "that"    "good"    "at"      "regex"   "yet,"   
 [8] "but"     "am"      "getting" "better"  "!"
https://ideone.com/gVEp0q
language:
R (R 3.5.2)
created:
6 years ago
visibility:
secret

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