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  1. x <- c("string", "string.", "string. and other")
  2. grepl("^[^.]*\\.?$", x)
Success #stdin #stdout 0.22s 39180KB
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Standard input is empty
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[1]  TRUE  TRUE FALSE
https://ideone.com/FSUF5K
language:
R (R 3.5.2)
created:
4 years ago
visibility:
secret

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