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I need to create a very simple scripting language, as an evolution of a macro language (where placeholders were present and were exchanged for the realdata) which is based essentially on statements that need to be executed in order. I need to support nesting of statements and maybe possibly if conditions.

I think I need a parser to properly detect the statements

For example one statement could be:

Input("Message"=#Clipboard())

In this case, I would need to execute the #Clipboard() statement first and then the #Input.

Any suggestion of what's the approach for it? I guess I need to contruct a tree and execute it. Thanks.

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  • I would suggest reading msdn.microsoft.com/en-us/magazine/cc136756.aspx . Commented Oct 29, 2010 at 5:10
  • Who is the end user of the macro Language? Commented Oct 29, 2010 at 16:16
  • What about embedding another language within the c#. Is the emphasis on allowing none coding savvied people to run simple scripts or is it running code on the fly? Commented Oct 29, 2010 at 16:21
  • The end user is not technically savvy. I need to create a simple high level language with very basic functionalities. I don't want to user to have to write C# code or compile it on the fly. Basically it's a matter of creating a series of statements and execute them. The problem is with statement nesting. Commented Nov 10, 2010 at 7:32

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See my answer to a similar question here:

Basically, you parse your string using Postfix Notation.

Also, if you are going to use something more complex, look into building a Recursive Descent Parser. Eric White's blog has a great set of articles on the topic.

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