tree fd5f1498cea9637e843307e7739ffdd3e3db20b6
parent 75b0316f6aef26729c8ea3d9055cdaf29425bf51
author John Kessenich <cepheus@frii.com> 1468097457 -0600
committer John Kessenich <cepheus@frii.com> 1468097591 -0600

Front-end: Fix known crashes by early exit on error (issue #29, issue #34, issue #35).

Added -C option to request cascading errors.  By default, will exit early,
to avoid all error-recovery-based crashes.

This works by simulating end-of-file in input on first error, so no
need for exception handling, or stack unwinding, or any complex error
checking/handling to get out of the stack.