Function builtin_trimws 

fn builtin_trimws(
    args: &[RValue],
    named: &[(String, RValue)],
) -> Result<RValue, RError>

Remove leading and/or trailing whitespace from strings.

@param x character vector to trim @param which character scalar: “both”, “left”, or “right” (default “both”) @param whitespace character scalar: regex pattern of whitespace characters to trim (default "[ \\t\\r\\n]") @return character vector with whitespace removed