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Forth and macros/code generation

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I want some colon definition, let's say

: mydef

to take some string parameter from stack, let's say

"something" (addr size)

and automatically generate a set of related words

something-a, something-b, etc.

That's the way, for instance, the DEFSTRUCT macro works in Lisp. Calling this:

(defstruct book 
title 
author 
subject 
book-id 
)

creates the book-title, book-author, ... functions.

My only idea for doing this in Forth is by generating the functions as a string then calling EVALUATE.

My questions:

* Is it an acceptable way of doing this? 

* Can I do this using Forth's interpretation/compilation semantics and related words?

* In general, is generating Forth code as string and evaluating it a bad programming practice (when postpone/immediate aren't of much help or leads to a difficult solution) ?

(I could't even nest a :noname inside a colon definition. The most recent version of GForth (0.79) offers the [: ;] words to enable creating unnamed definitions inside a definition.)

(I posted the same question in reddit/facebook groups, sorry if someone here already saw the same topic on those websites)

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Forth and macros/code generation danilomendoncaoliveira@gmail.com - 2018-04-03 08:09 -0700

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