I found this in the documentation for syntax-class (Link to this section with
@secref["stxparse-attrs" #:doc '(lib "syntax/scribblings/syntax.scrbl")]):
------------
Consider the following code:
(define-syntax-class quark
(pattern (a b ...)))
(syntax-parse some-term
[(x (y:quark ...) ... z:quark)
some-code])
The syntax class quark exports two attributes: a at depth 0 and b at depth 1.
The syntax-parse pattern has three pattern variables: x at depth 0, y at depth
2, and z at depth 0. Since x and y are annotated with the quark syntax class,
the pattern also binds the following nested attributes: y.a at depth 2, y.b at
depth 3, z.a at depth 0, and z.b at depth 1.
---------------
Should it be “Since y and z are annotated with the quark syntax class”? Or am I
misunderstanding something?
Tim
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