fork(3) download 
  1. text_1 <- c('Olá, meu nome é Stack OverFlow. Sou um site de programação para
  2.         entusiastas e profissionais')
  3.  
  4. library(stringr)
  5.  
  6. str_extract_all(text_1, 
  7.                 regex(pattern = 'f.*', 
  8.                 ignore_case = TRUE, 
  9.                 dotall = TRUE))
Success #stdin #stdout 0.22s 190400KB
comments (?)
stdin 
Standard input is empty
stdout 
[[1]]
[1] "Flow. Sou um site de programação para\n        entusiastas e profissionais"
https://ideone.com/ztj9Gv
language:
R (R 3.5.2)
created:
5 years ago
visibility:
public

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