Add grammar rule for XID_Start and XID_Continue

ehuss · ehuss · commit 1c6587084c2d · 2025-04-10T14:31:56.000-07:00
These were defined in prose below, but defining them here allows us to
easily refer and link to them.
diff --git a/src/identifiers.md b/src/identifiers.md
@@ -7,6 +7,10 @@ r[ident.syntax]
 > &nbsp;&nbsp; &nbsp;&nbsp; XID_Start XID_Continue<sup>\*</sup>\
 > &nbsp;&nbsp; | `_` XID_Continue<sup>+</sup>
 >
+> XID_Start : \<`XID_Start` defined by Unicode\>
+>
+> XID_Continue : \<`XID_Continue` defined by Unicode\>
+>
 > RAW_IDENTIFIER : `r#` IDENTIFIER_OR_KEYWORD <sub>*except `crate`, `self`, `super`, `Self`*</sub>
 >
 > NON_KEYWORD_IDENTIFIER : IDENTIFIER_OR_KEYWORD <sub>*except a [strict] or [reserved] keyword*</sub>

Original file line number	Diff line number	Diff line change
`@@ -7,6 +7,10 @@ r[ident.syntax]`
`7`	`7`	`>       XID_Start XID_Continue<sup>\*</sup>\`
`8`	`8`	>    \| `_` XID_Continue<sup>+</sup>
`9`	`9`	`>`
	`10`	+> XID_Start : \<`XID_Start` defined by Unicode\>
	`11`	`+>`
	`12`	+> XID_Continue : \<`XID_Continue` defined by Unicode\>
	`13`	`+>`
`10`	`14`	> RAW_IDENTIFIER : `r#` IDENTIFIER_OR_KEYWORD <sub>except `crate`, `self`, `super`, `Self`</sub>
`11`	`15`	`>`
`12`	`16`	`> NON_KEYWORD_IDENTIFIER : IDENTIFIER_OR_KEYWORD <sub>except a [strict] or [reserved] keyword</sub>`