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  1. char_vec <- c("A","A B","123?")
  2. append <- "_APPEND"
  3. gsub("([[:alpha:]])", paste0("\\1", append), char_vec)
  4.  
  5.  
Success #stdin #stdout 0.22s 60752KB
comments (?)
stdin 
Standard input is empty
stdout 
[1] "A_APPEND"          "A_APPEND B_APPEND" "123?"
https://ideone.com/ERWJSg
language:
R (R 3.5.2)
created:
7 years ago
visibility:
secret

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