* Adds a stub executable to cabal file for checking docs
* [WIP] Adds check-exercises executable
A program that checks that the exercises in Programming Cryptol actual work when
executed against an Cryptol REPL. Instead of using \begin{Verbatim}, we use
\begin{REPL} in both the exercise and the answer, which is rendered the same but
gets checked by this program.
This is a WIP -- we still need to do a number of things, including (but not
limited to):
* Move the "REPL" macro out of CrashCourse.tex and into some including latex
file
* Change many of the "Verbatim"s into "REPL"s to test if this approach works in
general
* Several updates
* Moves REPL command definitions into main latex file
* Generalizes repl commands
* Several improvements:
* documentation of CheckExercises.hs
* factoring out addReplData, addReplin, addReplout, nextLine functions
* took the IO out of P monad (shouldn't have been there)
* worked on annotating repls for many exercises/examples in crash course
* Adds a README for check-exercises
* Uses cryptol's -e option to detect errors
* updates ProgrammingCryptol.pdf
* Fixes main function
After changing to use the -e option to detect errors, I used cabal v2-exec which
apparently does not rebuild anything, but I thought it did. This just fixes the
code so it builds again.
