expression-evaluator | Expression Evaluator is built for C # .NET | Interpreter library

expression-evaluator is a C# library typically used in Utilities, Interpreter applications. expression-evaluator has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

This is a project written in C# that will, given a math, string or boolean expression, evaluate it using a built-in Language Template called EE Expressions. Language Templates are what the Expression Evaluator uses when defining math, string, and boolean operators like '+', '-', '||', and so on. EE Expressions is influenced by Python syntax by default, but the operations are fully customizable. Using this Language Template you can hook into operator events before and after they're evaluated or evaluate the expression yourself with custom logic. For example, if you have an expression in C# like '1 > 2', it will return 'False', with a type of Boolean. You can hook into the '>' operator with the following methods: OnBeforeOperatorExpressionSolved (before the expression is solved), OnAfterOperatorExpressionSolved (after the expression is solved), SolveOperatorExpression (override the default behaviour and solve it yourself). You can also customize the operator to use 'greater-than' as an operator instead of '>', so that '1 greater-than 2' will return 'False' too. If any kind of error happens, the error is returned and the values are null. The result you get back after a call to Evaluate is a class called ExpressionResult that contains the value, variable type, and error, if any. Please see Usage for examples.