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  1. string99 <- c("Foo  /10", "Foo Bar 7 / 0", "FooBar 25 / 5", "I do 156 / ")
  2.  gsub("^([^\\d/]*)|[^[:alnum:][:space:]]","\\1,",string99, perl=TRUE)
Success #stdin #stdout 0.22s 39104KB
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[1] "Foo  ,,10"      "Foo Bar ,7 , 0" "FooBar ,25 , 5" "I do ,156 , "
https://ideone.com/1WQV05
language:
R (R 3.5.2)
created:
6 years ago
visibility:
secret

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