fix comment in lexer.md (#491)

FantasqueX · web-flow · commit e2c14a9712a2 · 2025-09-13T12:59:13.000+08:00
diff --git a/src/docs/learn/parser_in_rust/lexer.md b/src/docs/learn/parser_in_rust/lexer.md
@@ -305,7 +305,7 @@ Tokenizing keywords will just be matching the identifier from above.
 
 ```rust
 fn match_keyword(&self, ident: &str) -> Kind {
-    // all keywords are 1 <= length <= 10
+    // all keywords are 1 < length <= 10
     if ident.len() == 1 || ident.len() > 10 {
         return Kind::Identifier;
     }

Original file line number	Diff line number	Diff line change
`@@ -305,7 +305,7 @@ Tokenizing keywords will just be matching the identifier from above.`
`305`	`305`
`306`	`306`	```rust
`307`	`307`	`fn match_keyword(&self, ident: &str) -> Kind {`
`308`		`- // all keywords are 1 <= length <= 10`
	`308`	`+ // all keywords are 1 < length <= 10`
`309`	`309`	`if ident.len() == 1 \|\| ident.len() > 10 {`
`310`	`310`	`return Kind::Identifier;`
`311`	`311`	`}`