[R] gsub issue with consecutive pattern finds

[Iago Giné Vázquez]

Hi all,

I tested next command:

gsub("([aeiouAEIOU])([aeiouAEIOU])", "\\1_\\2", "aerioue")

with the following output:

[1] "a_eri_ou_e"

So, there are two consecutive vowels where an underscore is not added.

May it be a bug? Is it expected (bug or not)? Is there any chance to get 
what I want (an underscore between each pair of consecutive vowels)?


Thank you!

Best regards,

Iago

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