mirror of https://github.com/python/cpython
142 lines
3.5 KiB
Python
142 lines
3.5 KiB
Python
from code import InteractiveConsole
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from functools import partial
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from typing import Iterable
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from unittest.mock import MagicMock
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from _pyrepl.console import Console, Event
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from _pyrepl.readline import ReadlineAlikeReader, ReadlineConfig
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from _pyrepl.simple_interact import _strip_final_indent
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def multiline_input(reader: ReadlineAlikeReader, namespace: dict | None = None):
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saved = reader.more_lines
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try:
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reader.more_lines = partial(more_lines, namespace=namespace)
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reader.ps1 = reader.ps2 = ">>>"
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reader.ps3 = reader.ps4 = "..."
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return reader.readline()
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finally:
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reader.more_lines = saved
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reader.paste_mode = False
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def more_lines(text: str, namespace: dict | None = None):
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if namespace is None:
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namespace = {}
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src = _strip_final_indent(text)
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console = InteractiveConsole(namespace, filename="<stdin>")
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try:
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code = console.compile(src, "<stdin>", "single")
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except (OverflowError, SyntaxError, ValueError):
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return False
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else:
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return code is None
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def code_to_events(code: str):
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for c in code:
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yield Event(evt="key", data=c, raw=bytearray(c.encode("utf-8")))
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def prepare_reader(console: Console, **kwargs):
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config = ReadlineConfig(readline_completer=None)
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reader = ReadlineAlikeReader(console=console, config=config)
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reader.more_lines = partial(more_lines, namespace=None)
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reader.paste_mode = True # Avoid extra indents
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def get_prompt(lineno, cursor_on_line) -> str:
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return ""
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reader.get_prompt = get_prompt # Remove prompt for easier calculations of (x, y)
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for key, val in kwargs.items():
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setattr(reader, key, val)
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return reader
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def prepare_console(events: Iterable[Event], **kwargs) -> MagicMock | Console:
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console = MagicMock()
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console.get_event.side_effect = events
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console.height = 100
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console.width = 80
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for key, val in kwargs.items():
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setattr(console, key, val)
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return console
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def handle_all_events(
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events, prepare_console=prepare_console, prepare_reader=prepare_reader
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):
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console = prepare_console(events)
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reader = prepare_reader(console)
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try:
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while True:
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reader.handle1()
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except StopIteration:
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pass
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return reader, console
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handle_events_narrow_console = partial(
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handle_all_events,
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prepare_console=partial(prepare_console, width=10),
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)
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class FakeConsole(Console):
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def __init__(self, events, encoding="utf-8"):
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self.events = iter(events)
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self.encoding = encoding
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self.screen = []
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self.height = 100
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self.width = 80
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def get_event(self, block: bool = True) -> Event | None:
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return next(self.events)
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def getpending(self) -> Event:
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return self.get_event(block=False)
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def getheightwidth(self) -> tuple[int, int]:
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return self.height, self.width
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def refresh(self, screen: list[str], xy: tuple[int, int]) -> None:
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pass
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def prepare(self) -> None:
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pass
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def restore(self) -> None:
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pass
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def move_cursor(self, x: int, y: int) -> None:
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pass
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def set_cursor_vis(self, visible: bool) -> None:
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pass
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def push_char(self, char: int | bytes) -> None:
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pass
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def beep(self) -> None:
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pass
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def clear(self) -> None:
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pass
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def finish(self) -> None:
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pass
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def flushoutput(self) -> None:
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pass
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def forgetinput(self) -> None:
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pass
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def wait(self) -> None:
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pass
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def repaint(self) -> None:
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pass
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