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144 lines
3.2 KiB
Python
144 lines
3.2 KiB
Python
from __future__ import annotations
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from typing import TextIO
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from prompt_toolkit.cursor_shapes import CursorShape
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from prompt_toolkit.data_structures import Size
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from prompt_toolkit.styles import Attrs
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from .base import Output
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from .color_depth import ColorDepth
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from .flush_stdout import flush_stdout
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__all__ = ["PlainTextOutput"]
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class PlainTextOutput(Output):
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"""
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Output that won't include any ANSI escape sequences.
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Useful when stdout is not a terminal. Maybe stdout is redirected to a file.
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In this case, if `print_formatted_text` is used, for instance, we don't
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want to include formatting.
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(The code is mostly identical to `Vt100_Output`, but without the
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formatting.)
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"""
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def __init__(self, stdout: TextIO) -> None:
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assert all(hasattr(stdout, a) for a in ("write", "flush"))
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self.stdout: TextIO = stdout
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self._buffer: list[str] = []
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def fileno(self) -> int:
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"There is no sensible default for fileno()."
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return self.stdout.fileno()
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def encoding(self) -> str:
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return "utf-8"
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def write(self, data: str) -> None:
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self._buffer.append(data)
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def write_raw(self, data: str) -> None:
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self._buffer.append(data)
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def set_title(self, title: str) -> None:
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pass
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def clear_title(self) -> None:
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pass
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def flush(self) -> None:
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if not self._buffer:
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return
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data = "".join(self._buffer)
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self._buffer = []
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flush_stdout(self.stdout, data)
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def erase_screen(self) -> None:
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pass
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def enter_alternate_screen(self) -> None:
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pass
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def quit_alternate_screen(self) -> None:
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pass
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def enable_mouse_support(self) -> None:
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pass
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def disable_mouse_support(self) -> None:
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pass
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def erase_end_of_line(self) -> None:
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pass
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def erase_down(self) -> None:
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pass
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def reset_attributes(self) -> None:
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pass
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def set_attributes(self, attrs: Attrs, color_depth: ColorDepth) -> None:
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pass
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def disable_autowrap(self) -> None:
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pass
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def enable_autowrap(self) -> None:
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pass
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def cursor_goto(self, row: int = 0, column: int = 0) -> None:
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pass
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def cursor_up(self, amount: int) -> None:
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pass
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def cursor_down(self, amount: int) -> None:
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self._buffer.append("\n")
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def cursor_forward(self, amount: int) -> None:
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self._buffer.append(" " * amount)
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def cursor_backward(self, amount: int) -> None:
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pass
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def hide_cursor(self) -> None:
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pass
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def show_cursor(self) -> None:
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pass
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def set_cursor_shape(self, cursor_shape: CursorShape) -> None:
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pass
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def reset_cursor_shape(self) -> None:
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pass
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def ask_for_cpr(self) -> None:
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pass
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def bell(self) -> None:
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pass
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def enable_bracketed_paste(self) -> None:
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pass
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def disable_bracketed_paste(self) -> None:
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pass
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def scroll_buffer_to_prompt(self) -> None:
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pass
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def get_size(self) -> Size:
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return Size(rows=40, columns=80)
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def get_rows_below_cursor_position(self) -> int:
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return 8
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def get_default_color_depth(self) -> ColorDepth:
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return ColorDepth.DEPTH_1_BIT
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