redid the parser, patched up the project too.

src/parse/enum_parser.rs

@@ -0,0 +1,26 @@
+#[macro_export]
+macro_rules! enum_parser {
+    ($p:path | $m:tt) => {
+        {
+            ::chumsky::prelude::filter_map(|s, l| {
+                if let $p(x) = l { Ok(x) }
+                else { Err(::chumsky::prelude::Simple::custom(s, $m))}
+            })
+        }
+    };
+    ($p:path >> $q:path; $i:ident) => {
+        {
+            use $p as srcpath;
+            use $q as tgtpath;
+            enum_parser!(srcpath::$i | (concat!("Expected ", stringify!($i)))).map(tgtpath::$i)
+        } 
+    };
+    ($p:path >> $q:path; $($i:ident),+) => {
+        {
+            ::chumsky::prelude::choice((
+                $( enum_parser!($p >> $q; $i) ),+
+            ))
+        }
+    };
+    ($p:path) => { enum_parser!($p | (concat!("Expected ", stringify!($p)))) };
+}