fork(2) download 
  1. text="Hi!stack overflow... is a popular website, I visit it every day."
  2. gsub("[[:space:]]*([[:punct:]]+)[[:space:]]*", " \\1 ", text)
Success #stdin #stdout 0.46s 79168KB
comments (?)
stdin 
Standard input is empty
stdout 
[1] "Hi ! stack overflow ... is a popular website , I visit it every day . "
https://ideone.com/ktj445
language:
R (R 3.5.2)
created:
9 years ago
visibility:
secret

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