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  1. txt <- c("a ~ b c d*e !r x",
  2.          "a ~ b c",
  3.          "a ~ b c d1 !r y",
  4.          "a ~ b c D !r z",
  5.          "a~b c d*e!r z")
  6. gsub("^[^~]+~\\s*|\\s*!r\\b.*", "", txt)
Success #stdin #stdout 0.31s 39028KB
comments (?)
stdin 
Standard input is empty
stdout 
[1] "b c d*e" "b c"     "b c d1"  "b c D"   "b c d*e"
https://ideone.com/4BfQem
language:
R (R 3.5.2)
created:
7 years ago
visibility:
public

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