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+# do-with-in
+
+This is a set of Rust packages that provides a basic form of use-site metaprogramming via staging for proc\_macros.
+
+## What?
+
+In its simplest form, you can wrap the invocation of some other proc\_macro with `do_with_in!` in order to do metaprogramming during the invocation of the thing - that is, in the input itself - using a fairly basic language. We don't have true unquote-splicing, as that is more or less impossible in Rust.
+
+But ultimately, this package was made to allow for a specific kind of refactoring in my [fantasy cpu emulator](https://github.com/flaviusb/fantasy-cpu-emulator) that I could not achieve otherwise. Hopefully this will prove useful to other people as well.
+
+## Maybe an example?
+
+...
+