Nothing
trimws <- function(x,left=TRUE,right=TRUE){
res <- x
old.locale <- Sys.getlocale("LC_CTYPE")
Sys.setlocale("LC_CTYPE","C")
if(left)
res <- sub('^\\s+', '',res)
if(right)
res <- sub('\\s+$', '',res)
Sys.setlocale("LC_CTYPE",old.locale)
res
}
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