It seemed like most of your question was about creating the name
identifier for the `define`. I focused on (and hopefully answered) that
part. But I didn't pick up on what you said the error message was:
>> attempts to use with-syntax* also fail with errors like "modified-rst:
>> unbound identifier in module (in phase 1, transformer environment)".
So, this part isn't about `magic-name`. It's about `modified-rst`
in your second clause:
(define-syntax (named-query stx)
(syntax-case stx (name-line)
[(_ (name-line (_ 0) (_ "name") magic-name))
(with-syntax ([name (string->symbol (syntax->datum #'magic-name))])
#'(define name
(lambda () (void))))]
[(_ (name-line (_ 0) (_ "name") magic-name) . rst)
(with-syntax ([name (string->symbol (syntax->datum #'magic-name))]
[modified-rst (cons (datum->syntax #'rst always-true-line)
#'rst)])
#'(define name
(lambda () (query . modified-rst))))]))
A few things:
1. The invocation you mentioned:
>> The macro invocation will look something like this:
>>
>> (named-query
>> (name-line (offset 0) (name-type "name") "tga-image"))
doesn't seem to match that second clause? So I'm not sure how that
invocation is giving you that error message. Is it actually some other
invocation example?
2. I don't see where `always-true-line` comes from. Where is that
defined? What kind of values will it have?
3. Could you say more about what you're trying to do here?
`(cons (datum->syntax #'rst always-true-line) #'rst)`
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