Allow unquoted <>&| in atoms

Author: mkantor

README.md

@@ -51,7 +51,7 @@ data representation implied by the fact that a value is an atom (e.g. the atom
 `2` may be an integer in memory).
 
 Bare words not containing any
-[reserved character sequences](./src/language/parsing/atom.ts#L33-L57) are
+[reserved character sequences](./src/language/parsing/atom.ts#L33-L55) are
 atoms:
 
 ```

src/language/parsing/atom.ts

@@ -44,15 +44,13 @@ const atomComponentsRequiringQuotation = [
   singleLineCommentDelimiter,
   whitespace,
 
+  // Reserved to allow symbols like `=>` to not be conflated with atoms:
+  literal('='),
+
   // Reserved for future use:
   literal('['),
   literal(']'),
-  literal('<'),
-  literal('>'),
   literal('#'),
-  literal('&'),
-  literal('|'),
-  literal('='),
   literal(';'),
 ] as const