Interpreter for non-negative arithmetic

This interpreter allows you to write code that performs addition, multiplication, order of operations, parenthesis, function definition and function calling with arguments for non-negative integers

Syntax

Every program must:

• Must define MAIN()
• DEF MAIN { A(1) } ; //valid main function
• DEF A x { x+1 } ; //valid function with parameter
• FUNCTION NAMES ARE UPPER CASE
• parameters are lower case
• 1.0,2.1,-3 are invalid numbers
• minus, division are invalid operations
• Functions being called must be defined
• Interpreter can detect infinite left and right recursion and prints DIVERGENCE to stdout

How do I run it?

Dependencies

• Javacc (Put in same file as Interpreter.jj)
• Java

Steps

1. Create interpreter: javacc-6.0/bin/javacc Interpreter.jj
2. Compile java classes: javac *.java
3. Run test files: java Interpreter < tests/validFiles.txt
4. Your code just got interpreted and if its valid, the result will be displayed!