Split string based on alternating character in R

Question

I\'m trying to figure out an efficient way to go about splitting a string like

\"111110000011110000111000\"

into a vector

[1] \         


        

Answer 1

Another approach in case, using mapply:

x="111110000011110000111000"

with(rle(strsplit(x,'')[[1]]), 
     mapply(function(u,v) paste0(rep(v,u), collapse=''), lengths, values))
#[1] "11111" "00000" "1111"  "0000"  "111"   "000"