def __init__(self, **kwargs):
super().__init__(**kwargs)
if ON_WINDOWS:
winutils.enable_virtual_terminal_processing()
self._first_prompt = True
self.history = ThreadedHistory(PromptToolkitHistory())
self.prompter = PromptSession(history=self.history)
self.prompt_formatter = PTKPromptFormatter(self.prompter)
self.pt_completer = PromptToolkitCompleter(self.completer, self.ctx,
self)
self.key_bindings = load_xonsh_bindings()
# Store original `_history_matches` in case we need to restore it
self._history_matches_orig = self.prompter.default_buffer._history_matches
# This assumes that PromptToolkitShell is a singleton
events.on_ptk_create.fire(
prompter=self.prompter,
history=self.history,
completer=self.pt_completer,
bindings=self.key_bindings,
)
# Goes at the end, since _MergedKeyBindings objects do not have
# an add() function, which is necessary for on_ptk_create events
self.key_bindings = merge_key_bindings(
[self.key_bindings,
load_emacs_shift_selection_bindings()])
def __init__(self, **kwargs):
ptk_args = kwargs.pop("ptk_args", {})
super().__init__(**kwargs)
if ON_WINDOWS:
winutils.enable_virtual_terminal_processing()
self._first_prompt = True
self.history = ThreadedHistory(PromptToolkitHistory())
ptk_args.setdefault("history", self.history)
if not XSH.env.get("XONSH_COPY_ON_DELETE", False):
disable_copy_on_deletion()
if HAVE_SYS_CLIPBOARD:
ptk_args.setdefault("clipboard", PyperclipClipboard())
self.prompter: PromptSession = PromptSession(**ptk_args)
self.prompt_formatter = PTKPromptFormatter(self)
self.pt_completer = PromptToolkitCompleter(self.completer, self.ctx, self)
ptk_bindings = self.prompter.app.key_bindings
self.key_bindings = load_xonsh_bindings(ptk_bindings)
self._overrides_deprecation_warning_shown = False
# Store original `_history_matches` in case we need to restore it
self._history_matches_orig = self.prompter.default_buffer._history_matches
# This assumes that PromptToolkitShell is a singleton
events.on_ptk_create.fire(
prompter=self.prompter,
history=self.history,
completer=self.pt_completer,
bindings=self.key_bindings,
)
# Goes at the end, since _MergedKeyBindings objects do not have
# an add() function, which is necessary for on_ptk_create events
self.key_bindings = merge_key_bindings(
[self.key_bindings, load_emacs_shift_selection_bindings()]
)
def __init__(self, **kwargs):
super().__init__(**kwargs)
if ON_WINDOWS:
winutils.enable_virtual_terminal_processing()
self._first_prompt = True
self.history = ThreadedHistory(PromptToolkitHistory())
self.prompter = PromptSession(history=self.history)
self.pt_completer = PromptToolkitCompleter(self.completer, self.ctx, self)
self.key_bindings = KeyBindings()
load_xonsh_bindings(self.key_bindings)
# This assumes that PromptToolkit2Shell is a singleton
events.on_ptk_create.fire(
prompter=self.prompter,
history=self.history,
completer=self.pt_completer,
bindings=self.key_bindings,
)
def __init__(self, **kwargs):
super().__init__(**kwargs)
if ON_WINDOWS:
winutils.enable_virtual_terminal_processing()
self._first_prompt = True
self.history = ThreadedHistory(PromptToolkitHistory())
self.prompter = PromptSession(history=self.history)
self.pt_completer = PromptToolkitCompleter(self.completer, self.ctx, self)
self.key_bindings = KeyBindings()
load_xonsh_bindings(self.key_bindings)
# Store original `_history_matches` in case we need to restore it
self._history_matches_orig = self.prompter.default_buffer._history_matches
# This assumes that PromptToolkit2Shell is a singleton
events.on_ptk_create.fire(
prompter=self.prompter,
history=self.history,
completer=self.pt_completer,
bindings=self.key_bindings,
)
def __init__(self, **kwargs):
super().__init__(**kwargs)
if ON_WINDOWS:
winutils.enable_virtual_terminal_processing()
self._first_prompt = True
self.prompter = Prompter()
self.history = PromptToolkitHistory()
self.pt_completer = PromptToolkitCompleter(self.completer, self.ctx, self)
key_bindings_manager_args = {
'enable_auto_suggest_bindings': True,
'enable_search': True,
'enable_abort_and_exit_bindings': True,
}
self.key_bindings_manager = KeyBindingManager(**key_bindings_manager_args)
load_xonsh_bindings(self.key_bindings_manager)
# This assumes that PromptToolkitShell is a singleton
events.on_ptk_create.fire(
prompter=self.prompter,
history=self.history,
completer=self.pt_completer,
bindings=self.key_bindings_manager,
)
def __init__(self, **kwargs):
super().__init__(**kwargs)
if ON_WINDOWS:
winutils.enable_virtual_terminal_processing()
self._first_prompt = True
self.prompter = Prompter()
self.history = PromptToolkitHistory()
self.pt_completer = PromptToolkitCompleter(self.completer, self.ctx, self)
key_bindings_manager_args = {
'enable_auto_suggest_bindings': True,
'enable_search': True,
'enable_abort_and_exit_bindings': True,
}
self.key_bindings_manager = KeyBindingManager(**key_bindings_manager_args)
load_xonsh_bindings(self.key_bindings_manager)
# This assumes that PromptToolkitShell is a singleton
events.on_ptk_create.fire(
prompter=self.prompter,
history=self.history,
completer=self.pt_completer,
bindings=self.key_bindings_manager,
)
def __init__(self, **kwargs):
super().__init__(**kwargs)
if ON_WINDOWS:
winutils.enable_virtual_terminal_processing()
self._first_prompt = True
self.history = ThreadedHistory(PromptToolkitHistory())
self.prompter = PromptSession(history=self.history)
self.pt_completer = PromptToolkitCompleter(self.completer, self.ctx,
self)
self.key_bindings = merge_key_bindings(
[load_xonsh_bindings(),
load_emacs_shift_selection_bindings()])
# Store original `_history_matches` in case we need to restore it
self._history_matches_orig = self.prompter.default_buffer._history_matches
# This assumes that PromptToolkitShell is a singleton
events.on_ptk_create.fire(
prompter=self.prompter,
history=self.history,
completer=self.pt_completer,
bindings=self.key_bindings,
)
def setup_readline():
"""Sets up the readline module and completion suppression, if available."""
global RL_COMPLETION_SUPPRESS_APPEND, RL_LIB, RL_CAN_RESIZE, RL_STATE, readline, RL_COMPLETION_QUERY_ITEMS
if RL_COMPLETION_SUPPRESS_APPEND is not None:
return
for _rlmod_name in ("gnureadline", "readline"):
try:
readline = importlib.import_module(_rlmod_name)
sys.modules["readline"] = readline
except ImportError:
pass
else:
break
if readline is None:
print(
"""Skipping setup. Because no `readline` implementation available.
Please install a backend (`readline`, `prompt-toolkit`, etc) to use
`xonsh` interactively.
See https://github.com/xonsh/xonsh/issues/1170""")
return
import ctypes
import ctypes.util
uses_libedit = readline.__doc__ and "libedit" in readline.__doc__
readline.set_completer_delims(" \t\n")
# Cygwin seems to hang indefinitely when querying the readline lib
if (not ON_CYGWIN) and (not ON_MSYS) and (
not readline.__file__.endswith(".py")):
RL_LIB = lib = ctypes.cdll.LoadLibrary(readline.__file__)
try:
RL_COMPLETION_SUPPRESS_APPEND = ctypes.c_int.in_dll(
lib, "rl_completion_suppress_append")
except ValueError:
# not all versions of readline have this symbol, ie Macs sometimes
RL_COMPLETION_SUPPRESS_APPEND = None
try:
RL_COMPLETION_QUERY_ITEMS = ctypes.c_int.in_dll(
lib, "rl_completion_query_items")
except ValueError:
# not all versions of readline have this symbol, ie Macs sometimes
RL_COMPLETION_QUERY_ITEMS = None
try:
RL_STATE = ctypes.c_int.in_dll(lib, "rl_readline_state")
except Exception:
pass
RL_CAN_RESIZE = hasattr(lib, "rl_reset_screen_size")
env = XSH.env
# reads in history
readline.set_history_length(-1)
ReadlineHistoryAdder()
# sets up IPython-like history matching with up and down
readline.parse_and_bind('"\\e[B": history-search-forward')
readline.parse_and_bind('"\\e[A": history-search-backward')
# Setup Shift-Tab to indent
readline.parse_and_bind('"\\e[Z": "{0}"'.format(env.get("INDENT")))
# handle tab completion differences found in libedit readline compatibility
# as discussed at http://stackoverflow.com/a/7116997
if uses_libedit and ON_DARWIN:
readline.parse_and_bind("bind ^I rl_complete")
print(
"\n".join([
"",
"*" * 78,
"libedit detected - readline will not be well behaved, including but not limited to:",
" * crashes on tab completion",
" * incorrect history navigation",
" * corrupting long-lines",
" * failure to wrap or indent lines properly",
"",
"It is highly recommended that you install gnureadline, which is installable with:",
" xpip install gnureadline",
"*" * 78,
]),
file=sys.stderr,
)
else:
readline.parse_and_bind("tab: complete")
# try to load custom user settings
inputrc_name = os_environ.get("INPUTRC")
if inputrc_name is None:
if uses_libedit:
inputrc_name = ".editrc"
else:
inputrc_name = ".inputrc"
inputrc_name = os.path.join(os.path.expanduser("~"), inputrc_name)
if (not ON_WINDOWS) and (not os.path.isfile(inputrc_name)):
inputrc_name = "/etc/inputrc"
if ON_WINDOWS:
winutils.enable_virtual_terminal_processing()
if os.path.isfile(inputrc_name):
try:
readline.read_init_file(inputrc_name)
except Exception:
# this seems to fail with libedit
print_exception(
"xonsh: could not load readline default init file.")
# Protection against paste jacking (issue #1154)
# This must be set after the init file is loaded since read_init_file()
# automatically disables bracketed paste
# (https://github.com/python/cpython/pull/24108)
readline.parse_and_bind("set enable-bracketed-paste on")
# properly reset input typed before the first prompt
readline.set_startup_hook(carriage_return)
def _cmdloop(self, intro=None):
"""Repeatedly issue a prompt, accept input, parse an initial prefix
off the received input, and dispatch to action methods, passing them
the remainder of the line as argument.
This was forked from Lib/cmd.py from the Python standard library v3.4.3,
(C) Python Software Foundation, 2015.
"""
self.preloop()
try:
import readline
if self.use_rawinput and self.completekey:
self.old_completer = readline.get_completer()
readline.set_completer(self.complete)
readline.parse_and_bind(self.completekey + ": complete")
have_readline = True
except ImportError:
have_readline = False
try:
if intro is not None:
self.intro = intro
if self.intro:
self.stdout.write(str(self.intro) + "\n")
stop = None
while not stop:
line = None
exec_now = False
if len(self.cmdqueue) > 0:
line = self.cmdqueue.popleft()
exec_now = line.endswith("\n")
if self.use_rawinput and not exec_now:
inserter = (None if line is None else _insert_text_func(
line, readline))
if inserter is not None:
readline.set_pre_input_hook(inserter)
try:
line = self.singleline()
except EOFError:
if XSH.env.get("IGNOREEOF"):
self.stdout.write('Use "exit" to leave the shell.'
"\n")
line = ""
else:
line = "EOF"
if inserter is not None:
readline.set_pre_input_hook(None)
else:
self.print_color(self.prompt, file=self.stdout)
if line is not None:
os.write(self.stdin.fileno(), line.encode())
if not exec_now:
line = self.stdin.readline()
if len(line) == 0:
line = "EOF"
else:
line = line.rstrip("\r\n")
if have_readline and line != "EOF":
readline.add_history(line)
if not ON_WINDOWS:
# select() is not fully functional on windows
self._load_remaining_input_into_queue()
line = self.precmd(line)
stop = self.onecmd(line)
stop = self.postcmd(stop, line)
if ON_WINDOWS:
winutils.enable_virtual_terminal_processing()
self.postloop()
finally:
if self.use_rawinput and self.completekey:
try:
import readline
readline.set_completer(self.old_completer)
except ImportError:
pass
def setup_readline():
"""Sets up the readline module and completion suppression, if available."""
global RL_COMPLETION_SUPPRESS_APPEND, RL_LIB, RL_CAN_RESIZE, RL_STATE, readline, RL_COMPLETION_QUERY_ITEMS
if RL_COMPLETION_SUPPRESS_APPEND is not None:
return
for _rlmod_name in ("gnureadline", "readline"):
try:
readline = importlib.import_module(_rlmod_name)
sys.modules["readline"] = readline
except ImportError:
pass
else:
break
if readline is None:
print(
"""Skipping setup. Because no `readline` implementation available.
Please install a backend (`readline`, `prompt-toolkit`, etc) to use
`xonsh` interactively.
See https://github.com/xonsh/xonsh/issues/1170"""
)
return
import ctypes
import ctypes.util
uses_libedit = readline.__doc__ and "libedit" in readline.__doc__
readline.set_completer_delims(" \t\n")
# Cygwin seems to hang indefinitely when querying the readline lib
if (not ON_CYGWIN) and (not ON_MSYS) and (not readline.__file__.endswith(".py")):
RL_LIB = lib = ctypes.cdll.LoadLibrary(readline.__file__)
try:
RL_COMPLETION_SUPPRESS_APPEND = ctypes.c_int.in_dll(
lib, "rl_completion_suppress_append"
)
except ValueError:
# not all versions of readline have this symbol, ie Macs sometimes
RL_COMPLETION_SUPPRESS_APPEND = None
try:
RL_COMPLETION_QUERY_ITEMS = ctypes.c_int.in_dll(
lib, "rl_completion_query_items"
)
except ValueError:
# not all versions of readline have this symbol, ie Macs sometimes
RL_COMPLETION_QUERY_ITEMS = None
try:
RL_STATE = ctypes.c_int.in_dll(lib, "rl_readline_state")
except Exception:
pass
RL_CAN_RESIZE = hasattr(lib, "rl_reset_screen_size")
env = builtins.__xonsh__.env
# reads in history
readline.set_history_length(-1)
ReadlineHistoryAdder()
# sets up IPython-like history matching with up and down
readline.parse_and_bind('"\\e[B": history-search-forward')
readline.parse_and_bind('"\\e[A": history-search-backward')
# Setup Shift-Tab to indent
readline.parse_and_bind('"\\e[Z": "{0}"'.format(env.get("INDENT")))
# handle tab completion differences found in libedit readline compatibility
# as discussed at http://stackoverflow.com/a/7116997
if uses_libedit and ON_DARWIN:
readline.parse_and_bind("bind ^I rl_complete")
print(
"\n".join(
[
"",
"*" * 78,
"libedit detected - readline will not be well behaved, including but not limited to:",
" * crashes on tab completion",
" * incorrect history navigation",
" * corrupting long-lines",
" * failure to wrap or indent lines properly",
"",
"It is highly recommended that you install gnureadline, which is installable with:",
" xpip install gnureadline",
"*" * 78,
]
),
file=sys.stderr,
)
else:
readline.parse_and_bind("tab: complete")
# try to load custom user settings
inputrc_name = os_environ.get("INPUTRC")
if inputrc_name is None:
if uses_libedit:
inputrc_name = ".editrc"
else:
inputrc_name = ".inputrc"
inputrc_name = os.path.join(os.path.expanduser("~"), inputrc_name)
if (not ON_WINDOWS) and (not os.path.isfile(inputrc_name)):
inputrc_name = "/etc/inputrc"
if ON_WINDOWS:
winutils.enable_virtual_terminal_processing()
if os.path.isfile(inputrc_name):
try:
readline.read_init_file(inputrc_name)
except Exception:
# this seems to fail with libedit
print_exception("xonsh: could not load readline default init file.")
# properly reset input typed before the first prompt
readline.set_startup_hook(carriage_return)
def _cmdloop(self, intro=None):
"""Repeatedly issue a prompt, accept input, parse an initial prefix
off the received input, and dispatch to action methods, passing them
the remainder of the line as argument.
This was forked from Lib/cmd.py from the Python standard library v3.4.3,
(C) Python Software Foundation, 2015.
"""
self.preloop()
if self.use_rawinput and self.completekey:
try:
import readline
self.old_completer = readline.get_completer()
readline.set_completer(self.complete)
readline.parse_and_bind(self.completekey + ": complete")
have_readline = True
except ImportError:
have_readline = False
try:
if intro is not None:
self.intro = intro
if self.intro:
self.stdout.write(str(self.intro) + "\n")
stop = None
while not stop:
line = None
exec_now = False
if len(self.cmdqueue) > 0:
line = self.cmdqueue.popleft()
exec_now = line.endswith("\n")
if self.use_rawinput and not exec_now:
inserter = (
None if line is None else _insert_text_func(line, readline)
)
if inserter is not None:
readline.set_pre_input_hook(inserter)
try:
line = self.singleline()
except EOFError:
if builtins.__xonsh__.env.get("IGNOREEOF"):
self.stdout.write('Use "exit" to leave the shell.' "\n")
line = ""
else:
line = "EOF"
if inserter is not None:
readline.set_pre_input_hook(None)
else:
self.print_color(self.prompt, file=self.stdout)
if line is not None:
os.write(self.stdin.fileno(), line.encode())
if not exec_now:
line = self.stdin.readline()
if len(line) == 0:
line = "EOF"
else:
line = line.rstrip("\r\n")
if have_readline and line != "EOF":
readline.add_history(line)
if not ON_WINDOWS:
# select() is not fully functional on windows
self._load_remaining_input_into_queue()
line = self.precmd(line)
stop = self.onecmd(line)
stop = self.postcmd(stop, line)
if ON_WINDOWS:
winutils.enable_virtual_terminal_processing()
self.postloop()
finally:
if self.use_rawinput and self.completekey:
try:
import readline
readline.set_completer(self.old_completer)
except ImportError:
pass
