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  1. text="stack overflow... is a popular website."
  2. gsub("[[:space:]]*(\\.+)[[:space:]]*", " \\1 ", text)
Success #stdin #stdout 0.46s 79168KB
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stdin 
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stdout 
[1] "stack overflow ... is a popular website . "
https://ideone.com/j29XPF
language:
R (R 3.5.2)
created:
9 years ago
visibility:
secret

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