Update macros-by-example.md

correct syntax '_MacroRulesDef_' NOTE: I tried to use round and square brackets. It seems that only curly brackets are allowed.
rust-lang · Mar 5, 2024 · d5b9d76 · d5b9d76
1 parent 1afcfd9
commit d5b9d76
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/src/macros-by-example.md b/src/macros-by-example.md
@@ -5,9 +5,7 @@
 > &nbsp;&nbsp; `macro_rules` `!` [IDENTIFIER] _MacroRulesDef_
 >
 > _MacroRulesDef_ :\
-> &nbsp;&nbsp; &nbsp;&nbsp; `(` _MacroRules_ `)` `;`\
-> &nbsp;&nbsp; | `[` _MacroRules_ `]` `;`\
-> &nbsp;&nbsp; | `{` _MacroRules_ `}`
+> &nbsp;&nbsp; `{` _MacroRules_ `}`
 >
 > _MacroRules_ :\
 > &nbsp;&nbsp; _MacroRule_ ( `;` _MacroRule_ )<sup>\*</sup> `;`<sup>?</sup>