diff --git a/package.json b/package.json
index 095ff81..4eeda31 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ludus/ludus-js-pure",
-  "version": "0.1.0-alpha.7.6",
+  "version": "0.1.0-alpha.7.7",
   "description": "A Ludus interpreter in a pure JS function.",
   "main": "target/js/ludus.js",
   "directories": {},
diff --git a/src/ludus/error.cljc b/src/ludus/error.cljc
index 548087d..22f2cf4 100644
--- a/src/ludus/error.cljc
+++ b/src/ludus/error.cljc
@@ -6,6 +6,8 @@
      			the_line (nth lines (dec line))]
  			the_line))
 
+(string/split-lines "abcd")
+
 (defn get-underline [source {:keys [line start lexeme]} prefix]
  	(let [lines (string/split-lines source)
       		lines-before (subvec lines 0 (dec line))
@@ -37,3 +39,4 @@
   		(str "Ludus panicked on line " line ":\n" (get-line source {:line line}) "\n" message)
   		(str "Ludus panicked!\n" message)
   		))
+
diff --git a/src/ludus/grammar.cljc b/src/ludus/grammar.cljc
index 92d24cc..2290430 100644
--- a/src/ludus/grammar.cljc
+++ b/src/ludus/grammar.cljc
@@ -58,11 +58,11 @@
                                 	 (quiet :rbrace)
                                  	])
 
-(defp struct-pattern group order-1 [(quiet :startstruct)
-                                   	(quiet (zero+ separator))
-                                   	(zero+ dict-pattern-entry)
-                                   	(quiet :rbrace)
-                                   	])
+; (defp struct-pattern group order-1 [(quiet :startstruct)
+;                                    	(quiet (zero+ separator))
+;                                    	(zero+ dict-pattern-entry)
+;                                    	(quiet :rbrace)
+;                                    	])
 
 (defp guard order-0 [(quiet :if) simple])
 
@@ -75,7 +75,7 @@
                            :else 
                            tuple-pattern 
                            dict-pattern 
-                           struct-pattern 
+                           ;struct-pattern 
                            list-pattern])
 
 (defp match-clause group weak-order [pattern (maybe guard) (quiet :rarrow) expression])
@@ -141,14 +141,15 @@
 
 (defp pair group order-0 [:keyword non-binding])
 
+;; "struct-term" and "struct-entry" are necessary for nses
 (defp struct-term flat choice [:word pair])
 
 (defp struct-entry order-1 [struct-term separators])
 
-(defp struct-literal group order-1 [(quiet :startstruct)
-                                   	(quiet (zero+ separator))
-                                   	(zero+ struct-entry)
-                                   	(quiet :rbrace)])
+; (defp struct-literal group order-1 [(quiet :startstruct)
+;                                    	(quiet (zero+ separator))
+;                                    	(zero+ struct-entry)
+;                                    	(quiet :rbrace)])
 
 (defp dict-term flat choice [splat :word pair])
 
@@ -230,7 +231,8 @@
 
 (defp repeat-expr group order-1 [(quiet :repeat) (choice :times [:word :number]) block])
 
-(defp collection flat choice [struct-literal dict list-literal set-literal tuple])
+(defp collection flat choice [;struct-literal 
+                              dict list-literal set-literal tuple])
 
 (defp simple flat choice [literal collection synthetic recur-call lambda])
 
diff --git a/src/ludus/interpreter.cljc b/src/ludus/interpreter.cljc
index 516d69b..6b8b470 100644
--- a/src/ludus/interpreter.cljc
+++ b/src/ludus/interpreter.cljc
@@ -442,7 +442,7 @@
               (throw (ex-info (str "Struct error: no member at " kw) {:ast kw}))))
           (get map kw))))))
 
-(defn- call-fn [lfn args ctx]
+(defn- call-fn [lfn args ctx from]
   ;(println "Calling function " (:name lfn))
   (cond
     (= ::data/partial (first args))
@@ -452,7 +452,8 @@
              (call-fn
                lfn
                (into [::data/tuple] (replace {::data/placeholder arg} (rest args)))
-               ctx))}
+               ctx
+               from))}
 
     (= (::data/type lfn) ::data/clj) (apply (:body lfn) (next args))
 
@@ -492,7 +493,7 @@
                   (interpret-ast body fn-ctx)))
               (recur (first clauses) (rest clauses))))
 
-          (throw (ex-info (str "Match Error: No match found for " (show/show args) " in function " (:name lfn)) {:ast (:ast lfn)})))))
+          (throw (ex-info (str "Match Error: No match found for " (show/show args) " in function " (:name lfn)) {:ast from})))))
 
     (keyword? lfn)
     (if (= 2 (count args))
@@ -531,7 +532,7 @@
             (throw (ex-info (str "Namespace error: no member " (:value curr) " in ns " (::data/name prev-value)) {:ast curr}))
             (throw (ex-info (str "Struct error: no member " (:value curr)) {:ast curr}))))
         (get prev-value (first data)))
-      (call-fn prev-value (interpret-args data ctx) ctx))))
+      (call-fn prev-value (interpret-args data ctx) ctx curr))))
 
 (defn- interpret-synthetic [ast ctx]
   ;;(println "interpreting synthetic " ast)
@@ -606,7 +607,7 @@
   (let [data (:data ast)
         root (interpret-ast (first data) ctx)
         fns (rest data)]
-    (reduce #(call-fn (interpret-ast %2 ctx) [::data/tuple %1] ctx) root fns)))
+    (reduce #(call-fn (interpret-ast %2 ctx) [::data/tuple %1] ctx ast) root fns)))
 
 (defn- map-values [f]
   (map (fn [kv]
@@ -773,9 +774,9 @@
       :pair (let [data (:data member) k (-> data first :data first) v (second data)]
               (assoc struct k (interpret-ast v ctx))))))
 
-(defn- interpret-struct [ast ctx]
-  (let [members (:data ast)]
-    (assoc (reduce (struct-term ctx) {} members) ::data/struct true)))
+; (defn- interpret-struct [ast ctx]
+;   (let [members (:data ast)]
+;     (assoc (reduce (struct-term ctx) {} members) ::data/struct true)))
 
 (defn- ns-term [ctx]
   (fn [ns member]
@@ -882,8 +883,8 @@
 
     :dict (interpret-dict ast ctx)
 
-    :struct-literal
-    (interpret-struct ast ctx)
+    ; :struct-literal
+    ; (interpret-struct ast ctx)
 
     (throw (ex-info (str "Unknown AST node type " (get ast :type :err) " on line " (get-in ast [:token :line])) {:ast ast}))))
 
diff --git a/src/ludus/node.cljc b/src/ludus/node.cljc
index 163e2ef..a1708b3 100644
--- a/src/ludus/node.cljc
+++ b/src/ludus/node.cljc
@@ -33,7 +33,9 @@
 (defn run [source]
  	(let [user_scanned (s/scan source)
       		user_tokens (:tokens user_scanned)
+        _ (println "Tokens: " user_tokens)
       		user_parsed (p/apply-parser g/script user_tokens)
+        _ (println "Ast: " (i/prettify-ast user_parsed))
       		user_result (i/interpret-safe source user_parsed {})
       		result_str (show/show user_result)
       		post_scanned (s/scan pre/postlude)
@@ -57,3 +59,4 @@
      	(clean-out clj_result)
      	)
    	))
+
diff --git a/src/ludus/prelude.ld b/src/ludus/prelude.ld
index 0abb743..e3e62f9 100644
--- a/src/ludus/prelude.ld
+++ b/src/ludus/prelude.ld
@@ -920,7 +920,7 @@ fn assert! {
 
 & some basic colors
 &&& TODO: add colors
-let colors = @{
+let colors = #{
 	:white (255, 255, 255, 255)
 	:light_gray (150, 150, 150, 255)
 	:dark_gray (50, 50, 50, 255)
diff --git a/src/ludus/scanner.cljc b/src/ludus/scanner.cljc
index c273907..b0a9fde 100644
--- a/src/ludus/scanner.cljc
+++ b/src/ludus/scanner.cljc
@@ -281,10 +281,10 @@
            (add-token (advance scanner) :startset)
            (add-error scanner (str "Expected beginning of set: ${. Got " char next)))
 
-      ;; struct @{
-      \@ (if (= next \{)
-           (add-token (advance scanner) :startstruct)
-           (add-error scanner (str "Expected beginning of struct: @{. Got " char next)))
+      ;; struct @{: Deleted from the language in December 2023
+      ; \@ (if (= next \{)
+      ;      (add-token (advance scanner) :startstruct)
+      ;      (add-error scanner (str "Expected beginning of struct: @{. Got " char next)))
 
       ;; placeholders
       ;; there's a flat _, and then ignored words
diff --git a/target/repl-port b/target/repl-port
new file mode 100644
index 0000000..8dbb69f
--- /dev/null
+++ b/target/repl-port
@@ -0,0 +1 @@
+51500
\ No newline at end of file