feat: Implement booleans (Kawaii/Cringe)

examples/booleans.fem

@@ -0,0 +1,12 @@
+my_bool is Kawaii
+
+Femboy Feminine my_bool Femboycore
+    UwU Boy "It's Kawaii!"
+Periodt
+
+Femboy Feminine Cringe Femboycore
+    UwU Boy "This won't print."
+Periodt
+Androgyny Femboycore
+    UwU Boy "This will print."
+Periodt

src/interpreter.py

@@ -26,6 +26,9 @@ class Interpreter:
     def visit_String(self, node):
         return node.value
 
+    def visit_Boolean(self, node):
+        return node.value
+
     def visit_BinOp(self, node):
         left_val = self.visit(node.left)
         right_val = self.visit(node.right)

src/parser.py

@@ -11,6 +11,11 @@ class String(AST):
         self.token = token
         self.value = token.value
 
+class Boolean(AST):
+    def __init__(self, token):
+        self.token = token
+        self.value = token.value
+
 class BinOp(AST):
     def __init__(self, left, op, right):
         self.left = left
@@ -240,8 +245,10 @@ class Parser:
             if self.peek_next_token().type == 'LPAREN': # Assuming '(' is the next token for a function call
                 return self.parse_function_call(token)
             return Variable(token)
+        elif token.type == 'KAWAII' or token.type == 'CRINGE':
+            return Boolean(token)
         else:
-            raise Exception(f"Expected integer, string or identifier, got {token.type}")
+            raise Exception(f"Expected integer, string, boolean or identifier, got {token.type}")
 
     def term(self):
         node = self.factor()