Equation.Parser

.net 5 Simple string Equation parser in .net 5 using the following rules

• Parsing multiple pharentesis 4 + (5 - ( 4 + 6))
• Multiplication and division are performed before addition or substraction 4 + (9 * 5) + (4 / 2)
  • Given the following equation: (54 * 210 + 6) / 2 + 4 * 2, the process is as follows:
  • (54 * 210 + 6) / 2 + 4 * 2 = (11340 + 6) / 2 + 4 * 2
  • 11346 / 2 + 4 * 2 = 5673 + 4 * 2
  • 5673 + 8 = 5681
  • Multiplication and division operations happen before any addition or substraction, and actions within pharentesis take prevalence.

Sample test cases

There are several test cases that cover common scenarions that can be used with this library:

[TestCase("7 + 5 + (6 * 4 + (7 + 7 + 9) + (5 + 7) + 9) + (9 * 7 + 6 * 8)", 191)]
[TestCase("7 + (5 + (9 + 4) * (8 * 8 + 2 + 6 + 8) * (5 * 5) * 5 * 9)", 1170012)]
[TestCase("5 * 7 + 6 + (7 * 4 + (7 + 2 + 8 + 5) * 8 * 6 * (3 * 4 * 9 * 5)) + 9", 570318)]
[TestCase("(7 * 5 + 7 + (6 * 5) + 3 + 5) + 4 * 2 + ((5 + 2) + 5 * (6 + 7 + 4 * 8 * 6) + (8 * 4) + 5 * (2 + 5 * 8 + 6 + 2 * 8))", 1472)]
[TestCase("3 / 2 / 2 * 6 * 6 - 9", 18)]
[TestCase("(1 - 3) / (6 - 7) * 100", 200)]

Installation

dotnet add package Equation.Parser.Library --version 1.1.0