I've been programming a long time, and the programs I see, when they run out of memory, attempt to clean up and exit, i.e. fail gracefully. I can't remember the last time I saw one actually attempt...

I know Perl's "Marpa" Earley parser has very good error reporting. But I can't find in its documentation or via Googling whether it has error recovery. For instance, most C/C++ compilers have err...