some changes in readme

README.md

@@ -5,6 +5,19 @@
 ## Описание
 **Argenta** — Python library for creating custom shells
 
+![prewiev](imgs/mock_app_preview.png)
+Пример внешнего вида TUI, написанного с помощью Argenta  
+Рекомендуемая библиотека для форматирования текста - [rich](https://github.com/Textualize/rich)  
+```python
+from argenta.app import App
+from rich.console import Console
+
+app = App(print_func=Console().print) # default: builtins.print
+
+# code...
+```
+
+
 ---
 
 # Установка

argenta/app/entity.py

@@ -7,7 +7,8 @@ from argenta.router import Router
 from argenta.router.defaults import system_router
 from argenta.command.exceptions import (UnprocessedInputFlagException,
                                         RepeatedInputFlagsException,
-                                  EmptyInputCommandException)
+                                        EmptyInputCommandException,
+                                        BaseInputCommandException)
 from argenta.app.exceptions import (InvalidRouterInstanceException,
                          InvalidDescriptionMessagePatternException,
                          NoRegisteredRoutersException,
@@ -79,9 +80,7 @@ class App:
 
             try:
                 input_command: InputCommand = InputCommand.parse(raw_command=raw_command)
-            except (UnprocessedInputFlagException,
-                    RepeatedInputFlagsException,
-                    EmptyInputCommandException) as error:
+            except BaseInputCommandException as error:
                 self.print_func(self.line_separate)
                 self._error_handler(error, raw_command)
                 self.print_func(self.line_separate)
@@ -240,17 +239,11 @@ class App:
             for command_handler in registered_router.get_command_handlers():
                 self.print_func(self._description_message_pattern.format(
                         command=command_handler.get_handled_command().get_trigger(),
-                        description=command_handler.get_handled_command().get_description()
-                    )
-                )
+                        description=command_handler.get_handled_command().get_description()))
             self.print_func(self.command_group_description_separate)
 
 
-    def _error_handler(self,
-                       error: UnprocessedInputFlagException |
-                              RepeatedInputFlagsException |
-                              EmptyInputCommandException,
-                       raw_command: str) -> None:
+    def _error_handler(self, error: BaseInputCommandException, raw_command: str) -> None:
         match error:
             case UnprocessedInputFlagException():
                 self._invalid_input_flags_handler(raw_command)

argenta/command/exceptions.py

@@ -1,12 +1,16 @@
 from argenta.command.flag.models import InputFlag, Flag
 
 
-class UnprocessedInputFlagException(Exception):
+class BaseInputCommandException(Exception):
+    pass
+
+
+class UnprocessedInputFlagException(BaseInputCommandException):
     def __str__(self):
         return "Unprocessed Input Flags"
 
 
-class RepeatedInputFlagsException(Exception):
+class RepeatedInputFlagsException(BaseInputCommandException):
     def __init__(self, flag: Flag | InputFlag):
         self.flag = flag
     def __str__(self):
@@ -14,6 +18,6 @@ class RepeatedInputFlagsException(Exception):
                 f"Duplicate flag was detected in the input: '{self.flag.get_string_entity()}'")
 
 
-class EmptyInputCommandException(Exception):
+class EmptyInputCommandException(BaseInputCommandException):
     def __str__(self):
         return "Input Command is empty"

mock/mock_app/handlers/routers.py

@@ -2,13 +2,13 @@ from pprint import pprint
 from rich.console import Console
 
 from argenta.command import Command
-from argenta.command.flag import Flags, InputFlags, Flag
+from argenta.command.flag import Flags, InputFlags
 from argenta.command.flag.defaults import PredeterminedFlags
 from argenta.router import Router
 from .handlers_implementation.help_command import help_command
 
 
-work_router: Router = Router(title='Work nts:')
+work_router: Router = Router(title='Work points:')
 work_router.set_invalid_input_flag_handler(lambda flag: print(f'Invalid input flag: {flag.get_string_entity()} {flag.get_value() if flag.get_value() else ''}'))
 
 settings_router: Router = Router(title='Settings points:')
@@ -22,14 +22,14 @@ def command_help():
     help_command()
 
 
-@work_router.command(Command(trigger='P', description='Start Solving', flags=Flags(PredeterminedFlags.HOST, PredeterminedFlags.PORT)))
+@work_router.command(Command(trigger='S', description='Start Solving', flags=Flags(PredeterminedFlags.HOST, PredeterminedFlags.PORT)))
 def command_start_solving(args: InputFlags):
     print('Solving...')
     pprint(args.get_flag('host'))
     #start_solving_command()
 
 
-@settings_router.command(Command(trigger='G', description='Update WordMath'))
+@settings_router.command(Command(trigger='U', description='Update WordMath'))
 def command_update():
     print('Command update')
 

mock/mock_app/main.py

@@ -9,7 +9,7 @@ app: App = App(prompt='[italic white bold]What do you want to do(enter number of
                line_separate=f'\n{"[bold green]-[/bold green][bold red]-[/bold red]"*25}\n',
                print_func=Console().print,
                command_group_description_separate='',
-               repeat_command_groups=True)
+               repeat_command_groups=False)
 
 
 def main():
@@ -24,13 +24,14 @@ def main():
     app.set_initial_message(initial_greeting)
     app.set_farewell_message(goodbye_message)
 
-    app.add_message_on_startup('--help for get helping\n\n')
+    app.add_message_on_startup('[b dim]Usage[/b dim]: [i]<command> <[green]flags[/green]>[/i]\n')
+    app.add_message_on_startup('[b dim]Help[/b dim]: [i]<command>[/i] [b red]--help[/b red]\n\n')
 
     app.set_invalid_input_flags_handler(lambda raw_command: print(f"Invalid input flags: {raw_command}"))
     app.set_unknown_command_handler(lambda command: print(f"Unknown command: {command.get_trigger()}"))
     app.set_repeated_input_flags_handler(lambda raw_command: print(f"Repeated input flags: {raw_command}"))
 
-    app.set_description_message_pattern('[bold red][{command}][/bold red] [blue]*=*=*[/blue] [bold yellow italic]{description}')
+    app.set_description_message_pattern('[bold red][{command}][/bold red] [blue dim]*=*=*[/blue dim] [bold yellow italic]{description}')
 
     app.start_polling()