skip bad files

[ggrothendieck]

When reading many real world files at once there may be some bad files that read_csv can't handle. It would be convenient if there were some way to tell it to skip bad files.

[hadley]

Since there are many different things you might want to do when there's a failure, we consider this out of scope for readr and instead recommend you handle with purrr or similar, e.g. https://r4ds.hadley.nz/iteration.html#handling-failures.