add backward compat for backward glyph

changelog.md

@@ -11,7 +11,7 @@ This version is not yet released. If you are reading this on the website, then t
 - Add data definition methods
 - Stabilize subscripted [`random ⚂`](https://uiua.org/docs/random)
 - Signature comments can now use a `$` rather than a `?` to automatically label arguments and outputs
-- Change [`backward ˜`](https://uiua.org/docs/backward)'s glyph back. `¨` will continue to work and will be formatted as `˜`.
+- Change [`backward ˜`](https://uiua.org/docs/backward)'s glyph back. `𝄈` will continue to work and will be formatted as `˜`.
   - This glyph has much better font support
 - Add sided subscripts for [`reach 𝄐`](https://uiua.org/docs/reach)
 - Add the [`# External!`](https://www.uiua.org/tutorial/documentation#external) semantic comment to mark functions that are provided via Rust code

src/lex.rs

@@ -962,7 +962,7 @@ impl<'a> Lexer<'a> {
                 // Backwards compatibility
                 "∶" => self.end(Primitive::Flip, start),
                 "⮌" => self.end(Primitive::Orient, start),
-                "¨" => self.end(Primitive::Backward, start),
+                "¨" | "𝄈" => self.end(Primitive::Backward, start),
                 "⍛" => self.end(Primitive::Obverse, start),
                 "◫" => {
                     self.end(Primitive::Stencil, start);