Program Specification:

Build a hash table using chaining as the collision resolution technique. Insertions into the hash table will correspond to declarations of variables and values in a program, searches will be requests for the value of a variable. Some variables will be local and have a narrow scope while some variables will be global.

The program will take input from a file, another program written in the omnipotent programming language BORG $($Bionicly Omnipotent Resistance Grinders$)$ and generate output from this program.

The BORG language has the following commands $($keywords$)$:

START$-$FINISH blocks. Indicating different scopes.

COM $-$ Single line comments: Text should be ignored if on the same line

VAR varName $$ Variable Declaration, adds $$varName$$ to the hash table.

variable $=$ expression $$ Assignment statements, ie GEORGE $=122.$ Find GEORGE in the hash table and assign $122$ to it$.$

$++-$ increment operator, syntax: VARIABLE $++$

$---$ decrement operator, syntax: VARIABLE $--$

expressions, expressions are limited to unary and binary arithmetic, or variable names

supported operators: $+-/*\%^($plus$,$ minus, divide, multiple, modulo, exponent$)$

PRINT $$ syntax PRINT expression. If the expression is a variable, and this variable is not in scope, then an error message indicating unknown variable x at line number y$.$ The value printed if there is a variable in scope should be the variable with the closest scope.

Errors $$ other than the print statements, our interpreter will not be responsible for detecting errors, syntax errors should be disregarded if encountered, assume that the source file is correct.

Our hash function: sum the ordinal values of the characters of the variable multiplied by their position in the string $(1-$indexing$),$ then taking the modulo by TABLESIZE.

The variable ABC $=(65*1+66*2+67*3)\%$ TABLESIZE

All tokens are separated by one space or a new line.

Output: for this assignment, run your interpreter on this sample source program as well as a program of your own, and turn it the output from both, as well as the source code from your BORG program as well as source code of the assignment and its executable.

Example Submission:

BorgInterpretor.cpp

HelloWorld.txt

output.txt $($or as a comment in the cpp file$)$

I need to make this in C$++.$ All other CHegg solutions are incompleted or in Java. I want to make sure I can have this in the file:

COM HERE IS OUR FIRST BORG PROGRAM

COM WHAT A ROBUST LANGUAGE IT IS

START

VAR BORAMIR $=25$

VAR LEGOLAS $=101$

PRINT BORAMIR

BORAMIR$++$

PRINT LEGOLAS

PRINT GANDALF

PRINT BORAMIR $*2$

COM

COM NESTED BLOCK

COM

START

VAR GANDALF $=49$

PRINT GANDALF

PRINT BORAMIR

FINISH

PRINT GANDALF

START

LEGOLAS $=1000$

PRINT LEGOLAS

LEGOLAS $--$

PRINT LEGOLAS

FINISH

and output the correct choices.Input

COM HERE IS OUR FIRST BORG PROGRAM

COM WHAT A ROBUST LANGUAGE IT IS

START

VAR BORAMIR $=25$

VAR LEGOLAS $=101$

PRINT BORAMIR

BORAMIR IS $25$

BORAMIR $++$

PRINT LEGOLAS

LEGOLAS IS $101$

PRINT GANDALF

GANDALF IS UNDEFINED

PRINT BORAMIR $*2$

BOARAMIR $*2$ IS $52$

COM

COM NESTED BLOCK

COM

START

VAR GANDALF $=49$

PRINT GANDALF

GANDALF IS $49$

PRINT BORAMIR

BORAMIR IS $26$

FINISH

PRINT GANDALF

GANDALF IS UNDEFINED

START

LEGOLAS $=1000$

PRINT LEGOLAS

LEGOLAS IS $1000$

FINISH

PRINT LEGOLAS

LEGOLAS IS $1000$

LEGOLAS $-$:

PRINT LEGOLAS

LEGOLAS IS $999$