Calculate The Hard Way

a simple arithmetic calculator, written in c++, implementing a lexer, a recursive decent ll(2) parser, and a visitor for compiling ast.

Usage

./PROG_NAME input.txt

input.txt:

pi = 3.1416
r = 123
area = pi * ( r * r )
area

(assuming that the excutable is named calc.exe)

> calc.exe input.txt
> 47529.264790

Name		Name	Last commit message	Last commit date
Latest commit History 12 Commits
ASTNode.cpp		ASTNode.cpp
ASTNode.h		ASTNode.h
ASTVisitor.cpp		ASTVisitor.cpp
ASTVisitor.h		ASTVisitor.h
CMakeLists.txt		CMakeLists.txt
EvalVisitor.cpp		EvalVisitor.cpp
EvalVisitor.h		EvalVisitor.h
LICENSE		LICENSE
Lexer.cpp		Lexer.cpp
Lexer.h		Lexer.h
Parser.cpp		Parser.cpp
Parser.h		Parser.h
PrintVisitor.cpp		PrintVisitor.cpp
PrintVisitor.h		PrintVisitor.h
example_input.txt		example_input.txt
grammar		grammar
main.cpp		main.cpp
readme.md		readme.md