R/trimspaces.R

In vlulla/vlutils: Common utilities that I find useful

trimspaces <-
function (x, which = c("both", "left", "right"), whitespace = "[ \t\r\n]") 
{
    which <- match.arg(which)
    mysub <- function(re, x) sub(re, "", x, perl = TRUE)
    switch(which, left = mysub(paste0("^", whitespace, "+"), 
        x), right = mysub(paste0(whitespace, "+$"), x), both = mysub(paste0(whitespace, 
        "+$"), mysub(paste0("^", whitespace, "+"), x)))
}