X-Git-Url: https://projects.mako.cc/source/harrypotter-wikipedia-cdsw/blobdiff_plain/ce5c13c094d659125fe85d59b9bc0e4c2bf40072..3248892a26a9f80a1a8d6ef5da9ad89a26ca03df:/win_unicode_console/readline_hook.py

diff --git a/win_unicode_console/readline_hook.py b/win_unicode_console/readline_hook.py
deleted file mode 100644
index 7946784..0000000
--- a/win_unicode_console/readline_hook.py
+++ /dev/null
@@ -1,106 +0,0 @@
-
-import sys, traceback
-from ctypes import pythonapi, cdll, c_size_t, c_char_p, c_void_p, cast, CFUNCTYPE, POINTER, addressof
-
-PyMem_Malloc = pythonapi.PyMem_Malloc
-PyMem_Malloc.restype = c_size_t
-PyMem_Malloc.argtypes = [c_size_t]
-
-strncpy = cdll.msvcrt.strncpy
-strncpy.restype = c_char_p
-strncpy.argtypes = [c_char_p, c_char_p, c_size_t]
-
-HOOKFUNC = CFUNCTYPE(c_char_p, c_void_p, c_void_p, c_char_p)
-
-PyOS_ReadlineFunctionPointer = c_void_p.in_dll(pythonapi, "PyOS_ReadlineFunctionPointer")
-
-
-def new_zero_terminated_string(b):
-	p = PyMem_Malloc(len(b) + 1)
-	strncpy(cast(p, c_char_p), b, len(b) + 1)
-	return p
-
-
-class ReadlineHookManager:
-	def __init__(self):
-		self.readline_wrapper_ref = HOOKFUNC(self.readline_wrapper)
-		self.address = c_void_p.from_address(addressof(self.readline_wrapper_ref)).value
-		self.original_address = PyOS_ReadlineFunctionPointer.value
-		self.readline_hook = None
-	
-	def readline_wrapper(self, stdin, stdout, prompt):
-		try:
-			try:
-				if sys.stdin.encoding != sys.stdout.encoding:
-					raise ValueError("sys.stdin.encoding != sys.stdout.encoding, readline hook doesn't know, which one to use to decode prompt")
-				
-			except ValueError:
-				traceback.print_exc(file=sys.stderr)
-				try:
-					prompt = prompt.decode("utf-8")
-				except UnicodeDecodeError:
-					prompt = ""
-				
-			else:
-				prompt = prompt.decode(sys.stdout.encoding)
-			
-			try:
-				line = self.readline_hook(prompt)
-			except KeyboardInterrupt:
-				return 0
-			else:
-				return new_zero_terminated_string(line.encode(sys.stdin.encoding))
-			
-		except:
-			print("Intenal win_unicode_console error", file=sys.stderr)
-			traceback.print_exc(file=sys.stderr)
-			return new_zero_terminated_string(b"\n")
-	
-	def install_hook(self, hook):
-		self.readline_hook = hook
-		PyOS_ReadlineFunctionPointer.value = self.address
-	
-	def restore_original(self):
-		self.readline_hook = None
-		PyOS_ReadlineFunctionPointer.value = self.original_address
-
-
-def readline(prompt):
-	sys.stdout.write(prompt)
-	sys.stdout.flush()
-	return sys.stdin.readline()
-
-
-class PyReadlineManager:
-	def __init__(self):
-		self.original_codepage = pyreadline.unicode_helper.pyreadline_codepage
-	
-	def set_codepage(self, codepage):
-		pyreadline.unicode_helper.pyreadline_codepage = codepage
-	
-	def restore_original(self):
-		self.set_codepage(self.original_codepage)
-
-try:
-	import pyreadline.unicode_helper
-except ImportError:
-	pyreadline = None
-else:
-	pyreadline_manager = PyReadlineManager()
-
-manager = ReadlineHookManager()
-
-
-def enable(*, use_pyreadline=True):
-	if use_pyreadline and pyreadline:
-		pyreadline_manager.set_codepage(sys.stdin.encoding)
-			# pyreadline assumes that encoding of all sys.stdio objects is the same
-	else:
-		manager.install_hook(readline)
-
-def disable():
-	if pyreadline:
-		pyreadline_manager.restore_original()
-	
-	manager.restore_original()
-