Compile Time D Expression Parser?

[d coder]

>
> How different is what you want to do from CTFE?
> http://dlang.org/function.html


I do not want to evaluate the expression in the string at compile time. I
want to parse it at compile time and later at run time, I am required to
process the parse tree and evaluate it in a different fashion (using binary
decision diagrams).

In summary, I need CTFE to parse the expression and create a parse tree
from it. I think this requires a string mixin that takes the expression
string as input and outputs code that builds the corresponding parse tree.

Regards
- Puneet
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