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  1. a <- c("I need             only                <5                         white-spaces   removed")
  2. # c("Iwant", "only", "<5", "white-spacesremoved")
  3. strsplit(gsub("(?<=\\S)\\s{1,4}(?=\\S)", "", a, perl=TRUE), "\\s+")
Success #stdin #stdout 0.2s 39480KB
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[[1]]
[1] "Ineed"               "only"                "<5"                 
[4] "white-spacesremoved"
https://ideone.com/tNbQlj
language:
R (R 3.5.2)
created:
5 years ago
visibility:
secret

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