tons of suggested fixes from alen

it/main.py

@@ -1,25 +1,13 @@
+#!/usr/bin/env python3
 # it, a shITtier version of ed
 import importlib
 import sys
 
-oldinput = input
-
-def input(*args):
-	message = args[0] if len(args) > 0 else ""
-	while 1:
-		try:
-			user_input = str(oldinput(message))
-		except KeyboardInterrupt:
-			pass
-		except EOFError:
-			sys.exit(0)
-	return user_input
-
 def parsecommand(command):
 	casesensitive = True
-	escapes = ["\\"]
-	quotes = ["'", '"']
-	spaces = [" ", "\t"]
+	escapes = {"\\"}
+	quotes = {"'", '"'}
+	spaces = {" ", "\t"}
 
 	command = command.strip()
 
@@ -27,48 +15,56 @@ def parsecommand(command):
 	word = ""
 	parsed_command = []
 
+	# copied from other project. mystery code. works though
 	for i in range(len(command)):
-		if (command[i] in quotes) and inQuotes == 0\
-				and (i == 0 \
-				or (i > 0 and not(command[i-1] in escapes))):
+		if ((command[i] in quotes)
+				and inQuotes == 0
+				and (i == 0 
+					or (i > 0 and not(command[i-1] in escapes)))):
 			inQuotes = command[i]
 
-		elif command[i] == inQuotes \
-				and (i > 0 and not(command[i-1] in escapes)):
+		elif (command[i] == inQuotes
+				and (i > 0 and not(command[i-1] in escapes))):
 			inQuotes = 0
 
-		elif command[i] in space and inQuotes == 0\
-				and (i > 0 and not(command[i-1] in escapes)):
+		elif (command[i] in spaces and inQuotes == 0
+				and (i > 0 and not(command[i-1] in escapes))):
 			parsed_command += [word]
 			word = ""
 
-		elif command[i] != "\\" or (i == len(command) - 1) \
-				or not(command[i+1] in space + quotes):
+		elif (command[i] != "\\" or (i == len(command) - 1)
+				or not(command[i+1] in spaces + quotes)):
 			word += command[i]
 
 	parsed_command += [word]
-	if parsed_command == ['']: return []
-	return parsed_command
+	return [] if parsed_command == [''] else parsed_command
 
-class buffer: # all the information about the current file
-	content = []
-	dot = -1
-	filename = ""
-	saved = 0
+class Buffer: # all the information about the current file
+	def __init__(self):
+		self.content = [] # content of the file
+		self.dot = 0 # where we are in the file
+		self.filename = "" # name of where we'll save the file
+		self.saved = 1 # bool that says whether or not we have saved the file
 
-def main(argc, argv):
-	file = buffer()
+def main():
+	buffer = Buffer()
 	modules = {}
 	while True:
-		command = parsecommand(input())
-		if(command == []):
+		try:
+			command = parsecommand(input())
+		except KeyboardInterrupt: # bastard behavior from ed
+			pass
+		except EOFError:
+			break
+		if command == []:
 			continue
 		try:
 			modules[command[0]] = importlib.import_module(command[0])
 		except ModuleNotFoundError as err:
 			print(err)
 		else:
-			file = modules[command[0]].main(len(command), command, file)
+			buffer = modules[command[0]].main(buffer, command)
+	return 0
 
 if __name__ == "__main__":
-	return main(len(sys.argv), sys.argv)
+	sys.exit(main())