Compiler final project

My MiniLisp interpreter for compiler final project at NCU

Compilation

Enter make build in the shell to compile the source code and link the object files; it will generate the binary interpreter into bin directory.

Execution

Enter bin/interpreter to execute the MiniLisp interpreter.

Prerequisites

1. bison ((GNU Bison) 3.5.1)
2. flex (2.6.4)
3. gcc

Mechanism of the miniLisp interpreter

First, it only interpretes little Lisp expression; it doesn't even support function definition / declaration and function call.
Second, there is no an actual type system. It only pushes integers to a stack and boolean values to another stack (if my memory is still fine). Apparently, something like union can help align the objects.

These are the design issues originating from my bad C programming skill at the time developing the interpreter.

Internally, it works with a stack structure to handle expressoin evaluation. AST is not constucted. The interpreter just parses the source code and performs the specified behavior directly with the compiled C code within the interpreter itself.