Grammar for parser for subset of Ocaml as a part of Nomos (https://www.cs.cmu.edu/~janh/projects/02_nomos/) project. This grammar will be inputted to the Menhir parser generator (http://gallium.inria.fr/~fpottier/menhir/) which will output a parser in Ocaml. The AST generated will be traversed and its structure will be outputted on stdout.

The instructions for installing opam are available on the opam installation page. Please install the latest version of opam.

To configure opam for the first time and install the latest version of OCaml, please run the following (skip if you have already configured opam)

$ opam init

$ opam install menhir          

To build the parser, run make from the current directory.

To run the parser, run ./main.native. Then type your input as a single line and press Ctrl-D to indicate the end of your input. The expressions currently supported by the parser are:

• values such as booleans and integers
• if-then-else statements
• let-in statements
• basic binary operations such as +, -, *, /
• list declaration separated by commas or as x::xs