Simple math parser

The Math Parser is a simple C# library that allows you to evaluate mathematical expressions containing basic operators and parentheses.

Features

• Supports operations:

  • Addition: +
  • Subtraction: -
  • Multiplication: *
  • Division: /
  • Equality: =
  • Inequality: !=
  • Modulus (remainder): %
• Handles expressions with multiple levels of parentheses.
• Follows the standard operator precedence rules (multiplication/division before addition/subtraction).
• Provides error handling for invalid expressions or divide by zero scenarios.

Usage

Using the parser in your C# code is straightforward. Here's an example:

using ExprParser;

string expression = "24+8-(2*(12-6)-3)+14/2-(13+2*5)";

try
{
    Parser parser = new Parser();
    int result = parser.Evaluate(expression);
    Console.WriteLine("Result: " + result);
}
catch (Exception ex)
{
    Console.WriteLine("Error: " + ex.Message);
}

Error Handling

The parser provides robust error handling for various scenarios, including:

• Argument Exception: If the input expression contains syntax errors or unsupported characters, a parser will be thrown with the appropriate error message.
• DivideByZero Exception: If the expression involves division by zero, a parser will be thrown with an error message indicating the divide by zero scenario.

Ensure that you wrap the evaluation code in a try-catch block to handle exceptions gracefully.

Limitations

• The parser currently supports only basic mathematical operations (+, -, *, /, %) and parentheses. It does not support advanced functions, trigonometry, logarithms, etc.
• The parser assumes correct syntax and does not perform extensive validation or error recovery.