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  1. df <- data.frame(
  2.   "stat.mineBlock.minecraft.123456stone" = 1,
  3.   "stat.mineBlock.minecraft.DFHFFBSBwater2" = 2,
  4.   "stat.mineBlock.minecraft.DFHFFBSBwater3" = 3,
  5.   "stat.mineBlock.minecraft.DFHFFBSBstone4" = 4
  6. )
  7. grep("^stat\\.mineBlock\\.minecraft\\.[a-zA-Z0-9]*?stone[a-zA-Z0-9]*?", colnames(df), value=TRUE, ignore.case=T, perl=T)
Success #stdin #stdout 0.45s 22824KB
comments ()
stdin 
Standard input is empty
stdout 
[1] "stat.mineBlock.minecraft.123456stone"   
[2] "stat.mineBlock.minecraft.DFHFFBSBstone4"
https://ideone.com/gxX7h8
language:
R (R 3.5.2)
created:
9 years ago
visibility:
secret

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