sprintf <- function(fmt, ...) {
dots <- eval(substitute(alist(...)))
if (length(dots) == 0)
return(fmt)
base::sprintf(fmt, ...)
}
stopf <- function(fmt, ..., call. = FALSE) {
stop(sprintf(fmt, ...), call. = call.)
}
warningf <- function(fmt, ..., call. = FALSE, immediate. = FALSE) {
warning(sprintf(fmt, ...), call. = call., immediate. = immediate.)
}
messagef <- function(fmt, ..., appendLF = TRUE) {
message(sprintf(fmt, ...), appendLF = appendLF)
}
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