If users of your `named-query` macro will supply the name as an
identifier -- an unquoted symbol like some-name in this example:
(named-query (name-line (_ 0) (_ "name") some-name))
Then what your macro needs to do with the pattern variable is... just
use it -- as is -- in the template. (It is already a piece of syntax
that could be a valid identifier. You're all set.)
If the idea is that users will supply the name as a string like
"some-name", then yes your macro would need to do the
(string->symbol (syntax->datum #'magic-name))
thing you already have -- but *also* convert that result back to syntax:
(datum->syntax #'magic-name
(string->symbol (syntax->datum #'magic-name)))
p.s. That (datum->syntax _ (string->symbol (syntax->datum _))) triplet
has an equivalent handy shortcut -- `format-id`:
(format-id #'magic-name "~a" #'magic-name)
p.p.s. I had similar questions before and wrote this:
<https://www.greghendershott.com/fear-of-macros/pattern-matching.html>
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