Nothing
blanks <- function(n) sprintf(paste("%", round(n), "s", sep = ""), "")
stripBlanks <- function(strings){
## strips leading and trailing blanks
ans <- gsub("^ *(.*)", "\\1", strings)
notEmpty <- nchar(ans) > 0
ans[notEmpty] <- gsub(" *$", "", ans[notEmpty])
ans
}
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