feat: рабочая версия дебаггера

скорее всего конкретно в TUI ничего уже меняться не будет

src/dbg_tui.py

@@ -1,10 +1,10 @@
 from dpdebugger import Debugger
 from dataclasses import dataclass
+from typing import cast
 import math
 import py_cui
 import py_cui.keys
-import re
-import shlex
+from collections import deque
 
 @dataclass
 class SourceLines:
@@ -57,6 +57,9 @@ class DebuggerUI:
                                                      row_span=1
                                                      )
         self.prompt_panel.add_key_command(py_cui.keys.KEY_ENTER, self._process_prompt)
+        self.history_index = 0
+        self.prompt_panel.add_key_command(py_cui.keys.KEY_UP_ARROW, self._history_up)
+        self.prompt_panel.add_key_command(py_cui.keys.KEY_DOWN_ARROW, self._history_down)
         self.terminal_panel = self.master.add_text_block("Debugger Console",
                                                           2, 0,
                                                           initial_text="to exit type in \"exit\""
@@ -66,16 +69,27 @@ class DebuggerUI:
                 py_cui.keys.KEY_ENTER,
                 lambda: self.master.move_focus(self.prompt_panel)
                 )
+        self.commands_history: deque[str] = deque(maxlen=10)
         self._display_source_lines()
 
     def _process_prompt(self):
         user_input = self.prompt_panel.get()
+        self.prompt_panel.clear()
         if user_input == "exit":
             exit()
-        self.prompt_panel.clear()
+        if user_input == "clear":
+            self.terminal_panel.clear()
+            return
+        if user_input.strip() == "":
+            if len(self.commands_history) < 1:
+                return
+            user_input = self.commands_history[0]
+        self.history_index = 0
+        self.commands_history.appendleft("")
         dbg_output = self.dbg.do_command(user_input.split())
         self.terminal_panel.write(dbg_output)
         self._display_source_lines()
+        self.commands_history[0] = user_input
 
     def _display_source_lines(self):
         active_line = self.dbg.get_current_source_line_number()
@@ -99,6 +113,20 @@ class DebuggerUI:
                     )
         self.source_panel.set_text("\n".join(lines_with_linenos))
 
+    def _history_up(self):
+        if len(self.commands_history) == 0:
+            return
+        self.history_index += 1
+        self.history_index %= len(self.commands_history)
+        self.prompt_panel.set_text(self.commands_history[self.history_index])
+
+    def _history_down(self):
+        if len(self.commands_history) == 0:
+            return
+        self.history_index -= 1
+        self.history_index %= len(self.commands_history)
+        self.prompt_panel.set_text(self.commands_history[self.history_index])
+
 def main(debugger: Debugger, srcfile: str):
     root = py_cui.PyCUI(3, 1)
     root.set_title("Stupid DP32 debugger")