grammar BasicMath;

/*
 * Parser Rules
 */

compileUnit
	:	EOF
	;

/*
 * Lexer Rules
 */

OPERATION : (PLUS|MINUS|DIVIDE|MULTIPLY);

MULTIPLY : '*';
DIVIDE : '/';
MINUS : '-';
PLUS : '+';

WS : ' ' -> channel(HIDDEN);

INTEGERLITERAL : (PLUS|MINUS)? ('0'..'9')+ ( ('e' | 'E') INTEGERLITERAL)* ('#' | '&')?;

NUMBERLITERAL : ('0'..'9')+;

expression : (NUMBERLITERAL WS? OPERATOR WS? NUMBERLITERAL)+;

compileUnit : expression EOF;

Origin

1980s: from the name of Robert Bork (1927–2012), an American judge whose nomination to the US Supreme Court (1987) was rejected following unfavorable publicity for his allegedly extreme views.

lineLabel : (ambiguousIdentifier ':' WS) | lineNumber;

lineNumber : (INTEGERLITERAL WS);

block : lineLabel? blockStmt (NEWLINE+ WS? blockStmt)* NEWLINE*;

block : lineLabel? blockStmt (NEWLINE+ lineLabel? WS? blockStmt)* NEWLINE*;

        private IParseTree Parse(string code, out TokenStreamRewriter outRewriter)
        {
            var input = new AntlrInputStream(code);
            var lexer = new VBALexer(input);
            var tokens = new CommonTokenStream(lexer);
            var parser = new VBAParser(tokens);
            outRewriter = new TokenStreamRewriter(tokens);

            var result = parser.startRule();
            return result;
        }

    class Program
    {
        static void Main(string[] args)
        {
            var lexer = new BasicMathLexer(new AntlrInputStream("6 + 4"));
            var tokens = new CommonTokenStream(lexer);
            var parser = new BasicMathParser(tokens);

            BasicMathParser.CompileUnitContext idk = parser.compileUnit;

        }
    }

    static class ExtensionMethods
    {
        public static string RemoveAll(this string me, char charToRemove)
        {
            for(int i = 0; i < me.Length; i++)
            {
                if (me[i] == charToRemove)
                {
                    me = me.Remove(i, 1);
                }
            }
            return me;
        }
    }

    enum Operators
    {
        Addition, Subtraction, Multiplication, Division
    }

    class Project
    {
        static Operators getNextOperator(string equation, ref int currentIndex)

3>RegAsm : error RA0000: Unable to locate input assembly 'C:\Users\Hosch250\Documents\Visual Studio 2013\Projects\Rubberduck\RetailCoder.VBE\bin\Debug64\Rubberduck.dll' or one of its dependencies.
3>C:\Program Files (x86)\MSBuild\12.0\bin\Microsoft.Common.CurrentVersion.targets(1131,5): error MSB3073: The command "if Debug64 == Debug64 (
3>C:\Program Files (x86)\MSBuild\12.0\bin\Microsoft.Common.CurrentVersion.targets(1131,5): error MSB3073:     c:\windows\microsoft.net\framework64\v4.0.30319\regasm.exe "C:\Users\Hosch250\Documents\Visual Studio 2013\Projects\Rubberduck\RetailCoder.VBE\bin\…