Converting expression to Parse tree using C or C# Code

Question

Hi, I want to make a C or C# code that will be used to convert from some expressiont to do some work such as like Addition or sub.

Answer 1

Lexing and Parsing is an entire sub-discipline of Computer Science - you're not going to get a complete solution that you can just pick up and drop into place.

If you want to use C, check out Flex and Bison, two tools that will help you create a working parser.

If you want to use C#, try Antlr.

If you're willing consider other .NET solutions, try FsLex and FsYacc which work with F# to create a parser that works from any .NET language.

Answer 2

I suspect this doesn't answer your question, but it is technically an answer for the question as you described it.

Expression<Func<int, int, int>> addition = (x, y) => x + y;

addition now holds your expression tree, which you can interrogate to your heart's content.