Removed the Requirement to Install Python and NodeJS (Now Bundled with Borealis)
This commit is contained in:
489
Dependencies/Python/Lib/_pyrepl/commands.py
vendored
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489
Dependencies/Python/Lib/_pyrepl/commands.py
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# Copyright 2000-2010 Michael Hudson-Doyle <micahel@gmail.com>
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# Antonio Cuni
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# Armin Rigo
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#
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# All Rights Reserved
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#
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#
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# Permission to use, copy, modify, and distribute this software and
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# its documentation for any purpose is hereby granted without fee,
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# provided that the above copyright notice appear in all copies and
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# that both that copyright notice and this permission notice appear in
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# supporting documentation.
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#
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# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO
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# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL,
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# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
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# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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from __future__ import annotations
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import os
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# Categories of actions:
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# killing
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# yanking
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# motion
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# editing
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# history
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# finishing
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# [completion]
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# types
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if False:
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from .historical_reader import HistoricalReader
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class Command:
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finish: bool = False
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kills_digit_arg: bool = True
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def __init__(
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self, reader: HistoricalReader, event_name: str, event: list[str]
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) -> None:
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# Reader should really be "any reader" but there's too much usage of
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# HistoricalReader methods and fields in the code below for us to
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# refactor at the moment.
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self.reader = reader
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self.event = event
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self.event_name = event_name
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def do(self) -> None:
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pass
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class KillCommand(Command):
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def kill_range(self, start: int, end: int) -> None:
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if start == end:
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return
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r = self.reader
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b = r.buffer
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text = b[start:end]
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del b[start:end]
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if is_kill(r.last_command):
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if start < r.pos:
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r.kill_ring[-1] = text + r.kill_ring[-1]
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else:
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r.kill_ring[-1] = r.kill_ring[-1] + text
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else:
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r.kill_ring.append(text)
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r.pos = start
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r.dirty = True
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class YankCommand(Command):
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pass
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class MotionCommand(Command):
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pass
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class EditCommand(Command):
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pass
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class FinishCommand(Command):
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finish = True
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pass
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def is_kill(command: type[Command] | None) -> bool:
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return command is not None and issubclass(command, KillCommand)
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def is_yank(command: type[Command] | None) -> bool:
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return command is not None and issubclass(command, YankCommand)
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# etc
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class digit_arg(Command):
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kills_digit_arg = False
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def do(self) -> None:
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r = self.reader
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c = self.event[-1]
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if c == "-":
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if r.arg is not None:
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r.arg = -r.arg
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else:
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r.arg = -1
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else:
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d = int(c)
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if r.arg is None:
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r.arg = d
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else:
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if r.arg < 0:
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r.arg = 10 * r.arg - d
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else:
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r.arg = 10 * r.arg + d
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r.dirty = True
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class clear_screen(Command):
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def do(self) -> None:
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r = self.reader
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r.console.clear()
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r.dirty = True
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class refresh(Command):
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def do(self) -> None:
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self.reader.dirty = True
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class repaint(Command):
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def do(self) -> None:
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self.reader.dirty = True
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self.reader.console.repaint()
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class kill_line(KillCommand):
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def do(self) -> None:
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r = self.reader
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b = r.buffer
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eol = r.eol()
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for c in b[r.pos : eol]:
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if not c.isspace():
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self.kill_range(r.pos, eol)
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return
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else:
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self.kill_range(r.pos, eol + 1)
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class unix_line_discard(KillCommand):
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def do(self) -> None:
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r = self.reader
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self.kill_range(r.bol(), r.pos)
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class unix_word_rubout(KillCommand):
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def do(self) -> None:
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r = self.reader
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for i in range(r.get_arg()):
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self.kill_range(r.bow(), r.pos)
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class kill_word(KillCommand):
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def do(self) -> None:
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r = self.reader
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for i in range(r.get_arg()):
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self.kill_range(r.pos, r.eow())
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class backward_kill_word(KillCommand):
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def do(self) -> None:
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r = self.reader
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for i in range(r.get_arg()):
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self.kill_range(r.bow(), r.pos)
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class yank(YankCommand):
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def do(self) -> None:
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r = self.reader
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if not r.kill_ring:
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r.error("nothing to yank")
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return
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r.insert(r.kill_ring[-1])
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class yank_pop(YankCommand):
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def do(self) -> None:
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r = self.reader
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b = r.buffer
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if not r.kill_ring:
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r.error("nothing to yank")
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return
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if not is_yank(r.last_command):
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r.error("previous command was not a yank")
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return
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repl = len(r.kill_ring[-1])
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r.kill_ring.insert(0, r.kill_ring.pop())
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t = r.kill_ring[-1]
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b[r.pos - repl : r.pos] = t
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r.pos = r.pos - repl + len(t)
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r.dirty = True
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class interrupt(FinishCommand):
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def do(self) -> None:
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import signal
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self.reader.console.finish()
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self.reader.finish()
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os.kill(os.getpid(), signal.SIGINT)
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class ctrl_c(Command):
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def do(self) -> None:
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self.reader.console.finish()
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self.reader.finish()
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raise KeyboardInterrupt
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class suspend(Command):
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def do(self) -> None:
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import signal
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r = self.reader
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p = r.pos
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r.console.finish()
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os.kill(os.getpid(), signal.SIGSTOP)
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## this should probably be done
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## in a handler for SIGCONT?
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r.console.prepare()
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r.pos = p
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# r.posxy = 0, 0 # XXX this is invalid
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r.dirty = True
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r.console.screen = []
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class up(MotionCommand):
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def do(self) -> None:
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r = self.reader
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for _ in range(r.get_arg()):
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x, y = r.pos2xy()
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new_y = y - 1
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if r.bol() == 0:
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if r.historyi > 0:
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r.select_item(r.historyi - 1)
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return
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r.pos = 0
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r.error("start of buffer")
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return
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if (
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x
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> (
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new_x := r.max_column(new_y)
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) # we're past the end of the previous line
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or x == r.max_column(y)
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and any(
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not i.isspace() for i in r.buffer[r.bol() :]
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) # move between eols
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):
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x = new_x
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r.setpos_from_xy(x, new_y)
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class down(MotionCommand):
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def do(self) -> None:
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r = self.reader
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b = r.buffer
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for _ in range(r.get_arg()):
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x, y = r.pos2xy()
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new_y = y + 1
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if r.eol() == len(b):
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if r.historyi < len(r.history):
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r.select_item(r.historyi + 1)
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r.pos = r.eol(0)
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return
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r.pos = len(b)
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r.error("end of buffer")
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return
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if (
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x
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> (
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new_x := r.max_column(new_y)
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) # we're past the end of the previous line
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or x == r.max_column(y)
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and any(
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not i.isspace() for i in r.buffer[r.bol() :]
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) # move between eols
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):
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x = new_x
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r.setpos_from_xy(x, new_y)
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class left(MotionCommand):
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def do(self) -> None:
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r = self.reader
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for _ in range(r.get_arg()):
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p = r.pos - 1
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if p >= 0:
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r.pos = p
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else:
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self.reader.error("start of buffer")
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class right(MotionCommand):
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def do(self) -> None:
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r = self.reader
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b = r.buffer
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for _ in range(r.get_arg()):
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p = r.pos + 1
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if p <= len(b):
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r.pos = p
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else:
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self.reader.error("end of buffer")
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class beginning_of_line(MotionCommand):
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def do(self) -> None:
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self.reader.pos = self.reader.bol()
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class end_of_line(MotionCommand):
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def do(self) -> None:
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self.reader.pos = self.reader.eol()
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class home(MotionCommand):
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def do(self) -> None:
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self.reader.pos = 0
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class end(MotionCommand):
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def do(self) -> None:
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self.reader.pos = len(self.reader.buffer)
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class forward_word(MotionCommand):
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def do(self) -> None:
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r = self.reader
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for i in range(r.get_arg()):
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r.pos = r.eow()
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class backward_word(MotionCommand):
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def do(self) -> None:
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r = self.reader
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for i in range(r.get_arg()):
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r.pos = r.bow()
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class self_insert(EditCommand):
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def do(self) -> None:
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r = self.reader
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text = self.event * r.get_arg()
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r.insert(text)
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class insert_nl(EditCommand):
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def do(self) -> None:
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r = self.reader
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r.insert("\n" * r.get_arg())
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class transpose_characters(EditCommand):
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def do(self) -> None:
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r = self.reader
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b = r.buffer
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s = r.pos - 1
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if s < 0:
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r.error("cannot transpose at start of buffer")
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else:
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if s == len(b):
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s -= 1
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t = min(s + r.get_arg(), len(b) - 1)
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c = b[s]
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del b[s]
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b.insert(t, c)
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r.pos = t
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r.dirty = True
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class backspace(EditCommand):
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def do(self) -> None:
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r = self.reader
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b = r.buffer
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for i in range(r.get_arg()):
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if r.pos > 0:
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r.pos -= 1
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del b[r.pos]
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r.dirty = True
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else:
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self.reader.error("can't backspace at start")
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class delete(EditCommand):
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def do(self) -> None:
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r = self.reader
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b = r.buffer
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if (
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r.pos == 0
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and len(b) == 0 # this is something of a hack
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and self.event[-1] == "\004"
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):
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r.update_screen()
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r.console.finish()
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raise EOFError
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for i in range(r.get_arg()):
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if r.pos != len(b):
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del b[r.pos]
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r.dirty = True
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else:
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self.reader.error("end of buffer")
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class accept(FinishCommand):
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def do(self) -> None:
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pass
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class help(Command):
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def do(self) -> None:
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import _sitebuiltins
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with self.reader.suspend():
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self.reader.msg = _sitebuiltins._Helper()() # type: ignore[assignment, call-arg]
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class invalid_key(Command):
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def do(self) -> None:
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pending = self.reader.console.getpending()
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s = "".join(self.event) + pending.data
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self.reader.error("`%r' not bound" % s)
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class invalid_command(Command):
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def do(self) -> None:
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s = self.event_name
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self.reader.error("command `%s' not known" % s)
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class show_history(Command):
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def do(self) -> None:
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from .pager import get_pager
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from site import gethistoryfile
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history = os.linesep.join(self.reader.history[:])
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self.reader.console.restore()
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pager = get_pager()
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pager(history, gethistoryfile())
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self.reader.console.prepare()
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# We need to copy over the state so that it's consistent between
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# console and reader, and console does not overwrite/append stuff
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self.reader.console.screen = self.reader.screen.copy()
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self.reader.console.posxy = self.reader.cxy
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class paste_mode(Command):
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def do(self) -> None:
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self.reader.paste_mode = not self.reader.paste_mode
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self.reader.dirty = True
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class enable_bracketed_paste(Command):
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def do(self) -> None:
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self.reader.paste_mode = True
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self.reader.in_bracketed_paste = True
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class disable_bracketed_paste(Command):
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def do(self) -> None:
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self.reader.paste_mode = False
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self.reader.in_bracketed_paste = False
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self.reader.dirty = True
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Block a user