518 lines
9.6 KiB
Python
518 lines
9.6 KiB
Python
import sys
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from typing import TYPE_CHECKING, Iterable, List
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if sys.version_info >= (3, 8):
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from typing import Literal
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else:
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from pip._vendor.typing_extensions import Literal # pragma: no cover
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from ._loop import loop_last
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if TYPE_CHECKING:
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from pip._vendor.rich.console import ConsoleOptions
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class Box:
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"""Defines characters to render boxes.
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┌─┬┐ top
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│ ││ head
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├─┼┤ head_row
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│ ││ mid
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├─┼┤ row
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├─┼┤ foot_row
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│ ││ foot
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└─┴┘ bottom
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Args:
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box (str): Characters making up box.
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ascii (bool, optional): True if this box uses ascii characters only. Default is False.
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"""
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def __init__(self, box: str, *, ascii: bool = False) -> None:
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self._box = box
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self.ascii = ascii
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line1, line2, line3, line4, line5, line6, line7, line8 = box.splitlines()
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# top
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self.top_left, self.top, self.top_divider, self.top_right = iter(line1)
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# head
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self.head_left, _, self.head_vertical, self.head_right = iter(line2)
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# head_row
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(
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self.head_row_left,
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self.head_row_horizontal,
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self.head_row_cross,
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self.head_row_right,
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) = iter(line3)
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# mid
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self.mid_left, _, self.mid_vertical, self.mid_right = iter(line4)
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# row
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self.row_left, self.row_horizontal, self.row_cross, self.row_right = iter(line5)
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# foot_row
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(
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self.foot_row_left,
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self.foot_row_horizontal,
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self.foot_row_cross,
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self.foot_row_right,
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) = iter(line6)
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# foot
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self.foot_left, _, self.foot_vertical, self.foot_right = iter(line7)
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# bottom
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self.bottom_left, self.bottom, self.bottom_divider, self.bottom_right = iter(
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line8
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)
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def __repr__(self) -> str:
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return "Box(...)"
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def __str__(self) -> str:
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return self._box
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def substitute(self, options: "ConsoleOptions", safe: bool = True) -> "Box":
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"""Substitute this box for another if it won't render due to platform issues.
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Args:
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options (ConsoleOptions): Console options used in rendering.
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safe (bool, optional): Substitute this for another Box if there are known problems
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displaying on the platform (currently only relevant on Windows). Default is True.
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Returns:
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Box: A different Box or the same Box.
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"""
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box = self
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if options.legacy_windows and safe:
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box = LEGACY_WINDOWS_SUBSTITUTIONS.get(box, box)
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if options.ascii_only and not box.ascii:
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box = ASCII
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return box
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def get_plain_headed_box(self) -> "Box":
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"""If this box uses special characters for the borders of the header, then
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return the equivalent box that does not.
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Returns:
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Box: The most similar Box that doesn't use header-specific box characters.
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If the current Box already satisfies this criterion, then it's returned.
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"""
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return PLAIN_HEADED_SUBSTITUTIONS.get(self, self)
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def get_top(self, widths: Iterable[int]) -> str:
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"""Get the top of a simple box.
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Args:
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widths (List[int]): Widths of columns.
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Returns:
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str: A string of box characters.
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"""
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parts: List[str] = []
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append = parts.append
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append(self.top_left)
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for last, width in loop_last(widths):
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append(self.top * width)
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if not last:
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append(self.top_divider)
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append(self.top_right)
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return "".join(parts)
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def get_row(
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self,
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widths: Iterable[int],
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level: Literal["head", "row", "foot", "mid"] = "row",
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edge: bool = True,
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) -> str:
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"""Get the top of a simple box.
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Args:
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width (List[int]): Widths of columns.
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Returns:
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str: A string of box characters.
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"""
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if level == "head":
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left = self.head_row_left
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horizontal = self.head_row_horizontal
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cross = self.head_row_cross
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right = self.head_row_right
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elif level == "row":
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left = self.row_left
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horizontal = self.row_horizontal
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cross = self.row_cross
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right = self.row_right
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elif level == "mid":
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left = self.mid_left
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horizontal = " "
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cross = self.mid_vertical
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right = self.mid_right
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elif level == "foot":
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left = self.foot_row_left
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horizontal = self.foot_row_horizontal
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cross = self.foot_row_cross
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right = self.foot_row_right
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else:
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raise ValueError("level must be 'head', 'row' or 'foot'")
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parts: List[str] = []
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append = parts.append
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if edge:
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append(left)
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for last, width in loop_last(widths):
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append(horizontal * width)
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if not last:
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append(cross)
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if edge:
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append(right)
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return "".join(parts)
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def get_bottom(self, widths: Iterable[int]) -> str:
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"""Get the bottom of a simple box.
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Args:
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widths (List[int]): Widths of columns.
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Returns:
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str: A string of box characters.
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"""
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parts: List[str] = []
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append = parts.append
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append(self.bottom_left)
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for last, width in loop_last(widths):
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append(self.bottom * width)
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if not last:
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append(self.bottom_divider)
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append(self.bottom_right)
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return "".join(parts)
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ASCII: Box = Box(
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"""\
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+--+
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|-+|
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|-+|
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|-+|
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+--+
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""",
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ascii=True,
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)
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ASCII2: Box = Box(
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"""\
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+-++
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+-++
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+-++
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+-++
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+-++
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""",
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ascii=True,
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)
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ASCII_DOUBLE_HEAD: Box = Box(
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"""\
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+-++
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+=++
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+-++
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+-++
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+-++
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""",
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ascii=True,
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)
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SQUARE: Box = Box(
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"""\
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┌─┬┐
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│ ││
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├─┼┤
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│ ││
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├─┼┤
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├─┼┤
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│ ││
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└─┴┘
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"""
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)
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SQUARE_DOUBLE_HEAD: Box = Box(
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"""\
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┌─┬┐
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│ ││
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╞═╪╡
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│ ││
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├─┼┤
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├─┼┤
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│ ││
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└─┴┘
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"""
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)
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MINIMAL: Box = Box(
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"""\
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╷
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│
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╶─┼╴
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│
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╶─┼╴
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╶─┼╴
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│
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╵
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"""
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)
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MINIMAL_HEAVY_HEAD: Box = Box(
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"""\
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╷
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│
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╺━┿╸
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│
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╶─┼╴
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╶─┼╴
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│
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╵
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"""
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)
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MINIMAL_DOUBLE_HEAD: Box = Box(
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"""\
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╷
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│
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═╪
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│
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─┼
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─┼
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│
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╵
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"""
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)
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SIMPLE: Box = Box(
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"""\
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──
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──
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"""
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)
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SIMPLE_HEAD: Box = Box(
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"""\
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──
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"""
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)
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SIMPLE_HEAVY: Box = Box(
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"""\
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━━
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━━
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"""
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)
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HORIZONTALS: Box = Box(
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"""\
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──
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──
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──
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──
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──
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"""
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)
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ROUNDED: Box = Box(
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"""\
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╭─┬╮
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│ ││
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├─┼┤
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│ ││
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├─┼┤
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├─┼┤
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│ ││
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╰─┴╯
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"""
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)
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HEAVY: Box = Box(
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"""\
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┏━┳┓
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┃ ┃┃
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┣━╋┫
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┃ ┃┃
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┣━╋┫
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┣━╋┫
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┃ ┃┃
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┗━┻┛
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"""
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)
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HEAVY_EDGE: Box = Box(
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"""\
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┏━┯┓
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┃ │┃
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┠─┼┨
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┃ │┃
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┠─┼┨
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┠─┼┨
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┃ │┃
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┗━┷┛
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"""
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)
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HEAVY_HEAD: Box = Box(
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"""\
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┏━┳┓
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┃ ┃┃
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┡━╇┩
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│ ││
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├─┼┤
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├─┼┤
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│ ││
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└─┴┘
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"""
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)
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DOUBLE: Box = Box(
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"""\
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╔═╦╗
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║ ║║
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╠═╬╣
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║ ║║
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╠═╬╣
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╠═╬╣
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║ ║║
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╚═╩╝
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"""
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)
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DOUBLE_EDGE: Box = Box(
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"""\
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╔═╤╗
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║ │║
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╟─┼╢
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║ │║
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╟─┼╢
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╟─┼╢
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║ │║
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╚═╧╝
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"""
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)
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MARKDOWN: Box = Box(
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"""\
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|-||
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|-||
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|-||
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""",
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ascii=True,
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)
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# Map Boxes that don't render with raster fonts on to equivalent that do
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LEGACY_WINDOWS_SUBSTITUTIONS = {
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ROUNDED: SQUARE,
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MINIMAL_HEAVY_HEAD: MINIMAL,
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SIMPLE_HEAVY: SIMPLE,
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HEAVY: SQUARE,
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HEAVY_EDGE: SQUARE,
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HEAVY_HEAD: SQUARE,
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}
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# Map headed boxes to their headerless equivalents
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PLAIN_HEADED_SUBSTITUTIONS = {
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HEAVY_HEAD: SQUARE,
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SQUARE_DOUBLE_HEAD: SQUARE,
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MINIMAL_DOUBLE_HEAD: MINIMAL,
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MINIMAL_HEAVY_HEAD: MINIMAL,
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ASCII_DOUBLE_HEAD: ASCII2,
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}
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if __name__ == "__main__": # pragma: no cover
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from pip._vendor.rich.columns import Columns
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from pip._vendor.rich.panel import Panel
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from . import box as box
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from .console import Console
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from .table import Table
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from .text import Text
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console = Console(record=True)
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BOXES = [
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"ASCII",
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"ASCII2",
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"ASCII_DOUBLE_HEAD",
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"SQUARE",
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"SQUARE_DOUBLE_HEAD",
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"MINIMAL",
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"MINIMAL_HEAVY_HEAD",
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"MINIMAL_DOUBLE_HEAD",
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"SIMPLE",
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"SIMPLE_HEAD",
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"SIMPLE_HEAVY",
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"HORIZONTALS",
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"ROUNDED",
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"HEAVY",
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"HEAVY_EDGE",
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"HEAVY_HEAD",
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"DOUBLE",
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"DOUBLE_EDGE",
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"MARKDOWN",
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]
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console.print(Panel("[bold green]Box Constants", style="green"), justify="center")
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console.print()
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columns = Columns(expand=True, padding=2)
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for box_name in sorted(BOXES):
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table = Table(
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show_footer=True, style="dim", border_style="not dim", expand=True
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)
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table.add_column("Header 1", "Footer 1")
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table.add_column("Header 2", "Footer 2")
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table.add_row("Cell", "Cell")
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table.add_row("Cell", "Cell")
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table.box = getattr(box, box_name)
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table.title = Text(f"box.{box_name}", style="magenta")
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columns.add_renderable(table)
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console.print(columns)
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# console.save_html("box.html", inline_styles=True)
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