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  1. x <- c("1.8 20v 150cv turbo", "1.6 8v 102cv", "1.6 v8 102cv", "1.6 3-p", "ro 35i 3.0 24v 306cv", "polo 1.8 turbo")
  2. regmatches(x, gregexpr("\\bv?\\d+(?:\\.\\d+)?(?:c?v?|i)(?!\\S)", x, perl=TRUE))
Success #stdin #stdout 0.2s 178496KB
comments (?)
stdin 
Standard input is empty
stdout 
[[1]]
[1] "1.8"   "20v"   "150cv"

[[2]]
[1] "1.6"   "8v"    "102cv"

[[3]]
[1] "1.6"   "v8"    "102cv"

[[4]]
[1] "1.6"

[[5]]
[1] "35i"   "3.0"   "24v"   "306cv"

[[6]]
[1] "1.8"
https://ideone.com/5EyMxF
language:
R (R 3.5.2)
created:
8 years ago
visibility:
secret

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