79 lines
2 KiB
Python
79 lines
2 KiB
Python
from __future__ import annotations
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from abc import ABCMeta, abstractmethod
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from typing import TYPE_CHECKING
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from prompt_toolkit.formatted_text import AnyFormattedText
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if TYPE_CHECKING:
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from .python_input import PythonInput
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__all__ = ["PromptStyle", "IPythonPrompt", "ClassicPrompt"]
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class PromptStyle(metaclass=ABCMeta):
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"""
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Base class for all prompts.
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"""
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@abstractmethod
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def in_prompt(self) -> AnyFormattedText:
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"Return the input tokens."
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return []
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@abstractmethod
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def in2_prompt(self, width: int) -> AnyFormattedText:
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"""
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Tokens for every following input line.
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:param width: The available width. This is coming from the width taken
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by `in_prompt`.
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"""
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return []
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@abstractmethod
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def out_prompt(self) -> AnyFormattedText:
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"Return the output tokens."
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return []
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class IPythonPrompt(PromptStyle):
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"""
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A prompt resembling the IPython prompt.
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"""
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def __init__(self, python_input: PythonInput) -> None:
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self.python_input = python_input
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def in_prompt(self) -> AnyFormattedText:
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return [
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("class:in", "In ["),
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("class:in.number", f"{self.python_input.current_statement_index}"),
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("class:in", "]: "),
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]
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def in2_prompt(self, width: int) -> AnyFormattedText:
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return [("class:in", "...: ".rjust(width))]
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def out_prompt(self) -> AnyFormattedText:
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return [
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("class:out", "Out["),
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("class:out.number", f"{self.python_input.current_statement_index}"),
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("class:out", "]:"),
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("", " "),
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]
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class ClassicPrompt(PromptStyle):
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"""
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The classic Python prompt.
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"""
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def in_prompt(self) -> AnyFormattedText:
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return [("class:prompt", ">>> ")]
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def in2_prompt(self, width: int) -> AnyFormattedText:
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return [("class:prompt.dots", "...")]
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def out_prompt(self) -> AnyFormattedText:
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return []
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