passing parsing errors to the outside

osaca/osaca.py

@@ -268,7 +268,7 @@ def inspect(args, output_file=sys.stdout):
     parser = get_asm_parser(arch)
     try:
         parsed_code = parser.parse_file(code)
-    except:
+    except Exception as e:
         # probably the wrong parser based on heuristic
         if args.arch is None:
             # change ISA and try again
@@ -277,8 +277,7 @@ def inspect(args, output_file=sys.stdout):
             parser = get_asm_parser(arch)
             parsed_code = parser.parse_file(code)
         else:
-            traceback.print_exc(file=sys.stderr)
-            sys.exit(1)
+            raise e
 
     # Reduce to marked kernel or chosen section and add semantics
     if args.lines:

osaca/parser/parser_AArch64.py

@@ -290,12 +290,10 @@ class ParserAArch64(BaseParser):
         if result is None:
             try:
                 result = self.parse_instruction(line)
-            except (pp.ParseException, KeyError):
-                print(
-                    '\n\n*-*-*-*-*-*-*-*-*-*-\n{}: {}\n*-*-*-*-*-*-*-*-*-*-\n\n'.format(
-                        line_number, line
-                    )
-                )
+            except (pp.ParseException, KeyError) as e:
+                raise e
+                raise ValueError(
+                    'Unable to parse {!r} on line {}'.format(line, line_number)) from e
             instruction_form[self.INSTRUCTION_ID] = result[self.INSTRUCTION_ID]
             instruction_form[self.OPERANDS_ID] = result[self.OPERANDS_ID]
             instruction_form[self.COMMENT_ID] = result[self.COMMENT_ID]