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  1. s <- c("3 T1F ROHITE01WMILWI16", "3 T1F ROHITE01WMILwI16", "3 T1F ROHITE01WMIL.I16", "1234", "aaaa", "T1F ROHITH01WMILWI16")
  2. grep("^([0-9 A-Z]*[A-Z][0-9 A-Z]*[0-9][0-9 A-Z]*|[0-9 A-Z]*[0-9][0-9 A-Z]*[A-Z][0-9 A-Z]*)$", s, value=TRUE)
Success #stdin #stdout 0.47s 79168KB
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[1] "3 T1F ROHITE01WMILWI16" "T1F ROHITH01WMILWI16"
https://ideone.com/BZaJVx
language:
R (R 3.5.2)
created:
9 years ago
visibility:
secret

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