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Fix up macro grammar

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Fixes #25623
This commit is contained in:
Steve Klabnik 2015-06-09 15:26:51 -04:00
parent 7b0f2af27f
commit 6bddfc9650
1 changed files with 2 additions and 1 deletions
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3
src/doc/grammar.md
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@ -281,7 +281,8 @@ type_path_tail : '<' type_expr [ ',' type_expr ] + '>'
## Macros
```antlr
expr_macro_rules : "macro_rules" '!' ident '(' macro_rule * ')' ;
expr_macro_rules : "macro_rules" '!' ident '(' macro_rule * ')' ';'
| "macro_rules" '!' ident '{' macro_rule * '}' ;
macro_rule : '(' matcher * ')' "=>" '(' transcriber * ')' ';' ;
matcher : '(' matcher * ')' | '[' matcher * ']'
| '{' matcher * '}' | '$' ident ':' ident