Split Character String Using Only Last Delimiter in r

Question

I have a character variable that I would like to split into 2 variables based on a \"-\" delimiter, however, I would only like to split based on the last delimiter as there

Answer 1

Using unglue you would do :

# install.packages("unglue")
library(unglue)
df <- data.frame(input = c("foo - bar","hey-now-man","say-now-girl","fine-now"))
unglue_unnest(df, input, "{output1}{=\\s*-\\s*}{output2=[^-]+}", remove = FALSE)
#>          input output1 output2
#> 1    foo - bar     foo     bar
#> 2  hey-now-man hey-now     man
#> 3 say-now-girl say-now    girl
#> 4     fine-now    fine     now

^{Created on 2019-11-06 by the reprex package (v0.3.0)}