> The only issue is converting our mountain of code that uses the old syntax
> (more than 40,000 lines, if you can believe it).
I would suggest keeping the old syntax too via {~or #:blend {~and blend-stx
blend}}, but making it log a warning when (attribute blend-stx) is true,
printing (syntax-source blend-stx) and (syntax-line blend-stx) and
(syntax-column blend-stx).
That will make it way easier to convert your old source. With a good backup and
a daring mood, you could even feed that to sed to make the change automatically
:) .
There was a talk by Jack Firth at racket-con about the idea of integrating
warnings to macros, and automatically suggesting or applying fixes. This seems
to be a good use-case for the idea.
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