能不能写一个可以在linux使用的类nano编辑器
我来为你创建一个简单的类nano文本编辑器。这个编辑器将使用Python编写,具有基本的文本编辑功能。
#!/usr/bin/env python3
"""
SimpleNano - 一个简单的类nano文本编辑器
作者: AI Assistant
"""
import curses
import os
import sys
class SimpleNano:
def __init__(self, filename=None):
self.filename = filename
self.content = []
self.cursor_y = 0
self.cursor_x = 0
self.scroll_y = 0
self.status_msg = ""
self.modified = False
self.search_term = ""
if filename and os.path.exists(filename):
try:
with open(filename, 'r', encoding='utf-8') as f:
self.content = f.read().splitlines()
if not self.content:
self.content = [""]
except Exception as e:
self.content = [""]
self.status_msg = f"Error loading file: {e}"
else:
self.content = [""]
def save_file(self):
if not self.filename:
self.filename = self.prompt_input("Save as: ")
if not self.filename:
return False
try:
with open(self.filename, 'w', encoding='utf-8') as f:
f.write('\n'.join(self.content))
self.modified = False
self.status_msg = f"File saved: {self.filename}"
return True
except Exception as e:
self.status_msg = f"Error saving file: {e}"
return False
def prompt_input(self, prompt):
curses.echo()
self.stdscr.addstr(curses.LINES - 1, 0, prompt + " " * (curses.COLS - len(prompt) - 1))
self.stdscr.refresh()
input_str = ""
while True:
ch = self.stdscr.getch()
if ch == ord('\n'):
break
elif ch == 27: # ESC
input_str = ""
break
elif ch == curses.KEY_BACKSPACE or ch == 127:
if input_str:
input_str = input_str[:-1]
y, x = self.stdscr.getyx()
self.stdscr.addstr(y, x-1, " ")
self.stdscr.move(y, x-1)
else:
input_str += chr(ch)
curses.noecho()
return input_str
def draw_screen(self):
self.stdscr.clear()
&nbs