Most files suffered major changes

- Less ambiguous syntax
- Better parser (Chumsky only does tokenization now)
- Tidy(|ier) error handling
- Facade for simplified embedding
- External code grouped in (fairly) self-contained Systems
- Dynamic action dispatch
- Many STL additions

examples/calculator/main.orc

@@ -1,14 +1,15 @@
-import std::(proc::*, to_float, to_string, io::(readline, print))
+import std::(proc::*, to_float, to_string, panic, str::char_at)
 
-export main := do{
+export const main := do{
   cps print "left operand: ";
-  cps data = readline;
+  cps data = readln;
   let a = to_float data;
   cps print "operator: ";
-  cps op = readline;
-  cps print ("you selected \"" ++ op ++ "\"\n");
+  cps op = readln;
+  let op = char_at op 0;
+  cps println ("you selected \"" ++ op ++ "\"");
   cps print "right operand: ";
-  cps data = readline;
+  cps data = readln;
   let b = to_float data;
   let result = (
     if op == "+" then a + b
@@ -17,6 +18,6 @@ export main := do{
     else if op == "/" then a / b
     else (panic "Unsupported operation")
   );
-  cps print ("Result: " ++ to_string result ++ "\n");
+  cps println ("Result: " ++ to_string result);
   0
-}
+}

examples/hello-world/main.orc

@@ -1,3 +1,5 @@
-import std::io::print
-
-main := print "Hello, world!\n" "goodbye"
+const main := (
+  println "Hello, world!"
+    "success"
+)
+-- main := "Hello, World!\n"

examples/list-processing/main.orc

@@ -1,6 +1,6 @@
-import std::(proc::*, io::print, to_string)
+import std::(proc::*, to_string)
 
-export main := do{
+export const main := do{
   let foo = list::new[1, 2, 3, 4, 5, 6];
   let bar = list::map foo n => n * 2;
   let sum = bar
@@ -8,6 +8,6 @@ export main := do{
     |> list::take 3
     |> list::reduce (\a.\b. a + b)
     |> option::unwrap;
-  cps print $ to_string sum ++ "\n";
+  cps println $ to_string sum;
   0
-}
+}

examples/maps/main.orc

@@ -1,6 +1,6 @@
-import std::(proc::*, io::print, to_string)
+import std::(proc::*, to_string)
 
-export main := do{
+export const main := do{
   let foo = map::new[
     "foo" = 1,
     "bar" = 2,
@@ -9,6 +9,6 @@ export main := do{
   ];
   let num = map::get foo "bar"
     |> option::unwrap;
-  cps print (to_string num ++ "\n");
+  cps println $ to_string num;
   0
-}
+}