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  1. text <- "This is some text::stuff. Look, there's some::more. And here::is some more."
  2. m <- gregexpr("[[:alnum:]]+(?=::)", text, perl=TRUE)
  3. unlist(regmatches(text, m))
Success #stdin #stdout 0.27s 39444KB
comments (?)
stdin 
Standard input is empty
stdout 
[1] "text" "some" "here"
https://ideone.com/1l7P83
language:
R (R 3.5.2)
created:
3 years ago
visibility:
secret

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