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-rw-r--r--src/prompt_toolkit/output/plain_text.py141
1 files changed, 141 insertions, 0 deletions
diff --git a/src/prompt_toolkit/output/plain_text.py b/src/prompt_toolkit/output/plain_text.py
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+++ b/src/prompt_toolkit/output/plain_text.py
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+from typing import List, TextIO
+
+from prompt_toolkit.cursor_shapes import CursorShape
+from prompt_toolkit.data_structures import Size
+from prompt_toolkit.styles import Attrs
+
+from .base import Output
+from .color_depth import ColorDepth
+from .flush_stdout import flush_stdout
+
+__all__ = ["PlainTextOutput"]
+
+
+class PlainTextOutput(Output):
+ """
+ Output that won't include any ANSI escape sequences.
+
+ Useful when stdout is not a terminal. Maybe stdout is redirected to a file.
+ In this case, if `print_formatted_text` is used, for instance, we don't
+ want to include formatting.
+
+ (The code is mostly identical to `Vt100_Output`, but without the
+ formatting.)
+ """
+
+ def __init__(self, stdout: TextIO) -> None:
+ assert all(hasattr(stdout, a) for a in ("write", "flush"))
+
+ self.stdout: TextIO = stdout
+ self._buffer: List[str] = []
+
+ def fileno(self) -> int:
+ "There is no sensible default for fileno()."
+ return self.stdout.fileno()
+
+ def encoding(self) -> str:
+ return "utf-8"
+
+ def write(self, data: str) -> None:
+ self._buffer.append(data)
+
+ def write_raw(self, data: str) -> None:
+ self._buffer.append(data)
+
+ def set_title(self, title: str) -> None:
+ pass
+
+ def clear_title(self) -> None:
+ pass
+
+ def flush(self) -> None:
+ if not self._buffer:
+ return
+
+ data = "".join(self._buffer)
+ self._buffer = []
+ flush_stdout(self.stdout, data)
+
+ def erase_screen(self) -> None:
+ pass
+
+ def enter_alternate_screen(self) -> None:
+ pass
+
+ def quit_alternate_screen(self) -> None:
+ pass
+
+ def enable_mouse_support(self) -> None:
+ pass
+
+ def disable_mouse_support(self) -> None:
+ pass
+
+ def erase_end_of_line(self) -> None:
+ pass
+
+ def erase_down(self) -> None:
+ pass
+
+ def reset_attributes(self) -> None:
+ pass
+
+ def set_attributes(self, attrs: Attrs, color_depth: ColorDepth) -> None:
+ pass
+
+ def disable_autowrap(self) -> None:
+ pass
+
+ def enable_autowrap(self) -> None:
+ pass
+
+ def cursor_goto(self, row: int = 0, column: int = 0) -> None:
+ pass
+
+ def cursor_up(self, amount: int) -> None:
+ pass
+
+ def cursor_down(self, amount: int) -> None:
+ self._buffer.append("\n")
+
+ def cursor_forward(self, amount: int) -> None:
+ self._buffer.append(" " * amount)
+
+ def cursor_backward(self, amount: int) -> None:
+ pass
+
+ def hide_cursor(self) -> None:
+ pass
+
+ def show_cursor(self) -> None:
+ pass
+
+ def set_cursor_shape(self, cursor_shape: CursorShape) -> None:
+ pass
+
+ def reset_cursor_shape(self) -> None:
+ pass
+
+ def ask_for_cpr(self) -> None:
+ pass
+
+ def bell(self) -> None:
+ pass
+
+ def enable_bracketed_paste(self) -> None:
+ pass
+
+ def disable_bracketed_paste(self) -> None:
+ pass
+
+ def scroll_buffer_to_prompt(self) -> None:
+ pass
+
+ def get_size(self) -> Size:
+ return Size(rows=40, columns=80)
+
+ def get_rows_below_cursor_position(self) -> int:
+ return 8
+
+ def get_default_color_depth(self) -> ColorDepth:
+ return ColorDepth.DEPTH_1_BIT