Initial commit - fix problems & refactor code

core/parse_evaluate.py

@@ -0,0 +1,29 @@
+from core.parser.parse_expression import parseExpression
+from core.evaluator.naively_evaluate import naivelyEvaluate
+from core.exceptions import error
+
+from core.environment import ENV
+
+from traceback import print_exception
+
+def parseEvaluate(source: str, *, load: bool = False) -> str:
+    results: list[str] = []
+    s = source
+    while s:
+        try:
+            expr, s = parseExpression(s)
+            value = naivelyEvaluate(expr, ENV, True)
+            results.append(repr(value))
+        except error as e:
+            # Unwrap nested causes so that the original error message is shown
+            cause = e
+            while cause.__cause__ and isinstance(cause.__cause__, error):
+                cause = cause.__cause__
+            print(cause)
+            break
+        except KeyboardInterrupt:
+            return "interrupted\n"
+        except Exception as exc:
+            print_exception(exc)
+            break
+    return ' '.join(results)