Add note to `groups.yml`

docs/src/reference/groups.yml

@@ -1,3 +1,6 @@
+# This is responsible for the fact that certain math functions are grouped
+# together into one documentation page although they are not part of any scope.
+
 - name: variants
   display: Variants
   functions: ["serif", "sans", "frak", "mono", "bb", "cal"]

src/syntax/mod.rs

@@ -10,9 +10,14 @@ mod reparser;
 mod source;
 mod span;
 
-pub use self::kind::*;
-pub use self::lexer::*;
-pub use self::node::*;
-pub use self::parser::*;
-pub use self::source::*;
-pub use self::span::*;
+pub use self::kind::SyntaxKind;
+pub use self::lexer::{is_ident, is_newline};
+pub use self::node::{ErrorPos, LinkedChildren, LinkedNode, SyntaxNode};
+pub use self::parser::{parse, parse_code};
+pub use self::source::{Source, SourceId};
+pub use self::span::{Span, Spanned};
+
+pub(crate) use self::lexer::{is_id_continue, is_id_start};
+
+use self::lexer::{split_newlines, LexMode, Lexer};
+use self::parser::{reparse_block, reparse_markup};