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  1. library(stringr)
  2. x <- c( "15 Aguascalientes - Ent. Cd. de Los Niños                             AGS", "3   Aguascalientes - Zacatecas                                       MEX-045")
  3. matches <- str_match(x, "^(\\d+)\\s+(.*?)\\s+(\\S+)$")[,-1]
  4. matches
Success #stdin #stdout 0.25s 42396KB
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stdin 
Standard input is empty
stdout 
     [,1] [,2]                                     [,3]     
[1,] "15" "Aguascalientes - Ent. Cd. de Los Niños" "AGS"    
[2,] "3"  "Aguascalientes - Zacatecas"             "MEX-045"
https://ideone.com/DTdXTz
language:
R (R 3.5.2)
created:
5 years ago
visibility:
secret

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