add meta
designator to macro reference
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1 changed files with 3 additions and 2 deletions
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@ -538,8 +538,9 @@ balanced, but they are otherwise not special.
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In the matcher, `$` _name_ `:` _designator_ matches the nonterminal in the Rust
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In the matcher, `$` _name_ `:` _designator_ matches the nonterminal in the Rust
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syntax named by _designator_. Valid designators are `item`, `block`, `stmt`,
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syntax named by _designator_. Valid designators are `item`, `block`, `stmt`,
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`pat`, `expr`, `ty` (type), `ident`, `path`, `tt` (either side of the `=>`
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`pat`, `expr`, `ty` (type), `ident`, `path`, `tt` (either side of the `=>`
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in macro rules). In the transcriber, the designator is already known, and so
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in macro rules), and `meta` (contents of an attribute). In the transcriber, the
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only the name of a matched nonterminal comes after the dollar sign.
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designator is already known, and so only the name of a matched nonterminal comes
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after the dollar sign.
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In both the matcher and transcriber, the Kleene star-like operator indicates
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In both the matcher and transcriber, the Kleene star-like operator indicates
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repetition. The Kleene star operator consists of `$` and parentheses, optionally
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repetition. The Kleene star operator consists of `$` and parentheses, optionally
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