From 203f521084f0175fce398251b695aab83f43fa06 Mon Sep 17 00:00:00 2001
From: Chris <Christopher.Happe@uni-duesseldorf.de>
Date: Fri, 13 Nov 2020 11:24:30 +0100
Subject: [PATCH] Jupyter Error mit sys.exit() behoben
---
info4/kapitel-8/Interpreter/interpreter.py | 41 ++++++++++++----------
1 file changed, 22 insertions(+), 19 deletions(-)
diff --git a/info4/kapitel-8/Interpreter/interpreter.py b/info4/kapitel-8/Interpreter/interpreter.py
index b02139c..ff765c5 100644
--- a/info4/kapitel-8/Interpreter/interpreter.py
+++ b/info4/kapitel-8/Interpreter/interpreter.py
@@ -42,7 +42,7 @@ class ErrorHandler:
print("Variable " + k + ": " + str(v))
user_input = input("Drücke ENTER zum Fotfahren oder schreibe EXIT zum Beenden:")
if user_input.lower() == 'exit':
- sys.exit(0)
+ raise KeyboardInterrupt
def process_assignment(value_list, forbidden_identifiers, identifier_token_1):
@@ -239,21 +239,24 @@ def next_nonempty_token(current_function, expected_token):
def interpret(program):
- global error_handler, lex, values
- lex = lexer.Lexer(regex_to_token, program)
- error_handler = ErrorHandler(program)
- values = {}
- forbidden_identifiers = []
- current_token = next_token()
- while current_token is not None:
- current_token, values = process_program(values, forbidden_identifiers, current_token)
- if current_token is not None:
- if not current_token.k == 'SEMICOLON':
- error_handler.handle_error("Semicolon erwartet")
- current_token = next_token()
- if current_token is None:
- error_handler.handle_error("Semikolons werden nur zur Trennung und nicht zum " +
- "Abschluss von Programmen verwendet")
- if "x0" in values:
- return values.get("x0")
- return 0
+ try:
+ global error_handler, lex, values
+ lex = lexer.Lexer(regex_to_token, program)
+ error_handler = ErrorHandler(program)
+ values = {}
+ forbidden_identifiers = []
+ current_token = next_token()
+ while current_token is not None:
+ current_token, values = process_program(values, forbidden_identifiers, current_token)
+ if current_token is not None:
+ if not current_token.k == 'SEMICOLON':
+ error_handler.handle_error("Semicolon erwartet")
+ current_token = next_token()
+ if current_token is None:
+ error_handler.handle_error("Semikolons werden nur zur Trennung und nicht zum " +
+ "Abschluss von Programmen verwendet")
+ if "x0" in values:
+ return values.get("x0")
+ return 0
+ except KeyboardInterrupt:
+ return -1
--
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