add support for parse_mode selection in all module APIs and update modules to respect these changes

main.py

@@ -40,6 +40,7 @@ class ModuleV1:
     # set environmental variables
     def set_env(self):
         self.RESPONSE = ""
+        self.FORMAT = ""
 
     def set_predefine(self):
         try:
@@ -55,11 +56,11 @@ class ModuleV1:
         self.MESSAGE = msg
         try:
             exec(self.code)
-            return self.RESPONSE
+            return self.RESPONSE, self.FORMAT
         except Exception as e:
             print(f"[ERROR] module v1: module \"{self.path}\" ({self.alias}) raised exception \"{e}\"")
             print(f"[ERROR] module v1: traceback:\ntraceback.format_exc()")
-            return ""
+            return "", None
 
 
 class ModuleV2:
@@ -78,7 +79,7 @@ class ModuleV2:
         except Exception as e:
             print(f"[ERROR] module v2: module \"{self.path}\" ({self.alias}) raised exception \"{e}\"")
             print(f"[ERROR] module v2: traceback:\ntraceback.format_exc()")
-            return None
+            return None, None
 
 
 # module control unit
@@ -190,21 +191,22 @@ def queue_processor():
                 # modules are used in here
                 for mod in mcu.modules:
                     if mod.enabled:
-                        if mod.version == 1 or mod.version == 2:
-                            response = mod.process(msg)
+                        if mod.version in [1, 2]:
+                            response, formatting = mod.process(msg)
 
                             if response:
-                                '''
-                                # protecting output
-                                symbols_to_escape = ['[', ']', '(', ')', '~', '`', '>', '#', '+', '-', '=', '|', '{', '}', '.', '!']
-                                for symbol in symbols_to_escape:
-                                    response = response.replace(symbol, f"\\{symbol}")
-                                '''
+                                if formatting == None:
+                                    updater.bot.send_message(chat_id=msg.chat.id, text=response,
+                                                             disable_web_page_preview=True)
+                                    print(f"Responded using module {mod.path} ({mod.alias}) with text: {response}")
+                                    break
 
-                                updater.bot.send_message(chat_id=msg.chat.id, text=response,
-                                                         disable_web_page_preview=True)
-                                print(f"Responded using module {mod.path} ({mod.alias}) with text: {response}")
-                                break
+                                elif formatting in ["Markdown", "MarkdownV2", "HTML"]:
+                                    updater.bot.send_message(chat_id=msg.chat.id, text=response,
+                                            disable_web_page_preview=True,
+                                            parse_mode=formatting)
+                                    print(f"Responded using module {mod.path} ({mod.alias}) with text (using {formatting}): {response}")
+                                    break
 
                 del message_queue[0]