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add meta designator to macro reference #27528

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Merged
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Aug 5, 2015
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add meta designator to macro reference #27528

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5 changes: 3 additions & 2 deletions src/doc/reference.md
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Expand Up @@ -538,8 +538,9 @@ balanced, but they are otherwise not special.
In the matcher, `$` _name_ `:` _designator_ matches the nonterminal in the Rust
syntax named by _designator_. Valid designators are `item`, `block`, `stmt`,
`pat`, `expr`, `ty` (type), `ident`, `path`, `tt` (either side of the `=>`
in macro rules). In the transcriber, the designator is already known, and so
only the name of a matched nonterminal comes after the dollar sign.
in macro rules), and `meta` (contents of an attribute). In the transcriber, the
designator is already known, and so only the name of a matched nonterminal comes
after the dollar sign.

In both the matcher and transcriber, the Kleene star-like operator indicates
repetition. The Kleene star operator consists of `$` and parentheses, optionally
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