## calling handlers
recoverHandler <- function(condition) {
string1 <- function(what) if(length(what) > 1) paste(what[[1]], "...") else what
message("Recover being started from a condition of class \"",
string1(class(condition)), "\":\n", conditionMessage(condition),
"\nCalled from: ", string1(deparse(conditionCall(condition))))
recover()
}