Clean up some stuff in scanner, try and fail to get quil working

justfile

@@ -0,0 +1,2 @@
+repl: # start a repl
+	clj -X clojure.core.server/start-server :name repl :port 5555 :accept clojure.core.server/repl :server-daemon false

project.clj

@@ -4,7 +4,8 @@
   :license {:name "EPL-2.0 OR GPL-2.0-or-later WITH Classpath-exception-2.0"
             :url "https://www.eclipse.org/legal/epl-2.0/"}
   :dependencies [[org.clojure/clojure "1.11.1"]
-                 [babashka/fs "0.1.6"]]
+                 [babashka/fs "0.1.6"]
+                 [quil "4.0.0-SNAPSHOT"]]
   :plugins [[lein-cljfmt "0.8.0"]]
   :repl-options {:init-ns ludus.core}
   :main ludus.core

src/ludus/prelude.clj

@@ -1,7 +1,9 @@
 (ns ludus.prelude
   (:require
     [ludus.data :as data]
-    [ludus.show :as show]))
+    [ludus.show :as show]
+    [ludus.draw :as d]
+    ))
 
 ;; TODO: make eq, and, or special forms that short-circuit
 ;; Right now, they evaluate all their args
@@ -81,7 +83,6 @@
 (def sleep- {:name "sleep"
              ::data/type ::data/clj
              :body (fn [ms] (Thread/sleep ms))})
-
 (def conj- {:name "conj"
   ::data/type ::data/clj
   :body conj})
@@ -94,6 +95,10 @@
   ::data/type ::data/clj
   :body get})
 
+(def draw {:name "draw"
+  ::data/type ::data/clj
+  :body d/draw})
+
 (def prelude {"eq" eq
               "add" add
               "print" print-
@@ -112,4 +117,5 @@
               "assoc" assoc-
               "conj" conj-
               "get" get-
+              "draw" draw
               })

src/ludus/scanner.clj

@@ -20,7 +20,7 @@
    "match" ::token/match ;; impl
    "nil" ::token/nil ;; impl
    "ns" ::token/ns ;; impl
-   "panic!" ::token/panic ;; impl
+   ;; "panic!" ::token/panic ;; impl (should be a function)
    "recur" ::token/recur ;; impl
    "ref" ::token/ref ;; impl
    "then" ::token/then ;; impl
@@ -29,17 +29,17 @@
 
    ;; actor model/concurrency
    "receive" ::token/receive
-   "self" ::token/self ;; maybe not necessary?
+   ;;"self" ::token/self ;; maybe not necessary?: self() is a function
-   "send" ::token/send
+   ;;"send" ::token/send ;; not necessary: send(pid, message) is a function
    "spawn" ::token/spawn
-   "to" ::token/to
+   ;;"to" ::token/to ;; not necessary if send is a function
    ;; type system
-   "data" ::token/data
+   ;; "data" ::token/data ;; we are going to tear out datatypes for now: see if dynamism works for us
    ;; others
-   "repeat" ::token/repeat ;; syntax sugar over "loop"
+   "repeat" ::token/repeat ;; syntax sugar over "loop": still unclear what this syntax could be
    "test" ::token/test
    "when" ::token/when
-   "module" ::token/module
+   ;; "module" ::token/module ;; not necessary if we don't have datatypes
    })
 
 (defn- new-scanner
@@ -107,7 +107,7 @@
 (defn- whitespace? [c]
   (or (= c \space) (= c \tab)))
 
-;; TODO: update terminators:
+;; TODO: update token terminators:
 ;;	remove: \|
 ;; add: \>
 ;; research others
@@ -251,7 +251,7 @@
       \- (cond
            (= next \>) (add-token (advance scanner) ::token/rarrow)
            (digit? next) (add-number char scanner)
-           :else (add-error scanner (str "Expected -> or negative number. Got " char next)))
+           :else (add-error scanner (str "Expected -> or negative number after `-`. Got `" char next "`")))
 
       ;; at current we're not using this
       ;; <-
@@ -331,3 +331,5 @@
          :errors (::errors scanner)})
       (recur (-> scanner (scan-token) (next-token))))))
 
+(scan "2 :three true nil")
+