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Rollup merge of #25282 - badboy:reference-macro-1, r=alexcrichton

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As mentioned in https://github.com/rust-lang/rust/issues/16676#issuecomment-100676326 this makes it a little bit more correct.

I'm a bit unsure whether or not it should be explained that the transcriber can be wrapped in parentheses or curly braces if necessary.
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Steve Klabnik 2015-05-11 23:24:18 -04:00
commit f8df5ea8a7
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@ -547,7 +547,7 @@ _name_ s that occur in its body. At the "current layer", they all must repeat
the same number of times, so ` ( $( $i:ident ),* ; $( $j:ident ),* ) => ( $(
($i,$j) ),* )` is valid if given the argument `(a,b,c ; d,e,f)`, but not
`(a,b,c ; d,e)`. The repetition walks through the choices at that layer in
lockstep, so the former input transcribes to `( (a,d), (b,e), (c,f) )`.
lockstep, so the former input transcribes to `(a,d), (b,e), (c,f)`.
Nested repetitions are allowed.