740 lines
24 KiB
Python
740 lines
24 KiB
Python
|
from enum import IntEnum
|
||
|
|
from functools import lru_cache
|
||
|
|
from itertools import filterfalse
|
||
|
|
from logging import getLogger
|
||
|
|
from operator import attrgetter
|
||
|
|
from typing import (
|
||
|
|
TYPE_CHECKING,
|
||
|
|
Dict,
|
||
|
|
Iterable,
|
||
|
|
List,
|
||
|
|
NamedTuple,
|
||
|
|
Optional,
|
||
|
|
Sequence,
|
||
|
|
Tuple,
|
||
|
|
Type,
|
||
|
|
Union,
|
||
|
|
)
|
||
|
|
|
||
|
|
from .cells import (
|
||
|
|
_is_single_cell_widths,
|
||
|
|
cached_cell_len,
|
||
|
|
cell_len,
|
||
|
|
get_character_cell_size,
|
||
|
|
set_cell_size,
|
||
|
|
)
|
||
|
|
from .repr import Result, rich_repr
|
||
|
|
from .style import Style
|
||
|
|
|
||
|
|
if TYPE_CHECKING:
|
||
|
|
from .console import Console, ConsoleOptions, RenderResult
|
||
|
|
|
||
|
|
log = getLogger("rich")
|
||
|
|
|
||
|
|
|
||
|
|
class ControlType(IntEnum):
|
||
|
|
"""Non-printable control codes which typically translate to ANSI codes."""
|
||
|
|
|
||
|
|
BELL = 1
|
||
|
|
CARRIAGE_RETURN = 2
|
||
|
|
HOME = 3
|
||
|
|
CLEAR = 4
|
||
|
|
SHOW_CURSOR = 5
|
||
|
|
HIDE_CURSOR = 6
|
||
|
|
ENABLE_ALT_SCREEN = 7
|
||
|
|
DISABLE_ALT_SCREEN = 8
|
||
|
|
CURSOR_UP = 9
|
||
|
|
CURSOR_DOWN = 10
|
||
|
|
CURSOR_FORWARD = 11
|
||
|
|
CURSOR_BACKWARD = 12
|
||
|
|
CURSOR_MOVE_TO_COLUMN = 13
|
||
|
|
CURSOR_MOVE_TO = 14
|
||
|
|
ERASE_IN_LINE = 15
|
||
|
|
SET_WINDOW_TITLE = 16
|
||
|
|
|
||
|
|
|
||
|
|
ControlCode = Union[
|
||
|
|
Tuple[ControlType],
|
||
|
|
Tuple[ControlType, Union[int, str]],
|
||
|
|
Tuple[ControlType, int, int],
|
||
|
|
]
|
||
|
|
|
||
|
|
|
||
|
|
@rich_repr()
|
||
|
|
class Segment(NamedTuple):
|
||
|
|
"""A piece of text with associated style. Segments are produced by the Console render process and
|
||
|
|
are ultimately converted in to strings to be written to the terminal.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
text (str): A piece of text.
|
||
|
|
style (:class:`~rich.style.Style`, optional): An optional style to apply to the text.
|
||
|
|
control (Tuple[ControlCode], optional): Optional sequence of control codes.
|
||
|
|
|
||
|
|
Attributes:
|
||
|
|
cell_length (int): The cell length of this Segment.
|
||
|
|
"""
|
||
|
|
|
||
|
|
text: str
|
||
|
|
style: Optional[Style] = None
|
||
|
|
control: Optional[Sequence[ControlCode]] = None
|
||
|
|
|
||
|
|
@property
|
||
|
|
def cell_length(self) -> int:
|
||
|
|
"""The number of terminal cells required to display self.text.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
int: A number of cells.
|
||
|
|
"""
|
||
|
|
text, _style, control = self
|
||
|
|
return 0 if control else cell_len(text)
|
||
|
|
|
||
|
|
def __rich_repr__(self) -> Result:
|
||
|
|
yield self.text
|
||
|
|
if self.control is None:
|
||
|
|
if self.style is not None:
|
||
|
|
yield self.style
|
||
|
|
else:
|
||
|
|
yield self.style
|
||
|
|
yield self.control
|
||
|
|
|
||
|
|
def __bool__(self) -> bool:
|
||
|
|
"""Check if the segment contains text."""
|
||
|
|
return bool(self.text)
|
||
|
|
|
||
|
|
@property
|
||
|
|
def is_control(self) -> bool:
|
||
|
|
"""Check if the segment contains control codes."""
|
||
|
|
return self.control is not None
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
@lru_cache(1024 * 16)
|
||
|
|
def _split_cells(cls, segment: "Segment", cut: int) -> Tuple["Segment", "Segment"]:
|
||
|
|
|
||
|
|
text, style, control = segment
|
||
|
|
_Segment = Segment
|
||
|
|
|
||
|
|
cell_length = segment.cell_length
|
||
|
|
if cut >= cell_length:
|
||
|
|
return segment, _Segment("", style, control)
|
||
|
|
|
||
|
|
cell_size = get_character_cell_size
|
||
|
|
|
||
|
|
pos = int((cut / cell_length) * (len(text) - 1))
|
||
|
|
|
||
|
|
before = text[:pos]
|
||
|
|
cell_pos = cell_len(before)
|
||
|
|
if cell_pos == cut:
|
||
|
|
return (
|
||
|
|
_Segment(before, style, control),
|
||
|
|
_Segment(text[pos:], style, control),
|
||
|
|
)
|
||
|
|
while pos < len(text):
|
||
|
|
char = text[pos]
|
||
|
|
pos += 1
|
||
|
|
cell_pos += cell_size(char)
|
||
|
|
before = text[:pos]
|
||
|
|
if cell_pos == cut:
|
||
|
|
return (
|
||
|
|
_Segment(before, style, control),
|
||
|
|
_Segment(text[pos:], style, control),
|
||
|
|
)
|
||
|
|
if cell_pos > cut:
|
||
|
|
return (
|
||
|
|
_Segment(before[: pos - 1] + " ", style, control),
|
||
|
|
_Segment(" " + text[pos:], style, control),
|
||
|
|
)
|
||
|
|
|
||
|
|
raise AssertionError("Will never reach here")
|
||
|
|
|
||
|
|
def split_cells(self, cut: int) -> Tuple["Segment", "Segment"]:
|
||
|
|
"""Split segment in to two segments at the specified column.
|
||
|
|
|
||
|
|
If the cut point falls in the middle of a 2-cell wide character then it is replaced
|
||
|
|
by two spaces, to preserve the display width of the parent segment.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
Tuple[Segment, Segment]: Two segments.
|
||
|
|
"""
|
||
|
|
text, style, control = self
|
||
|
|
|
||
|
|
if _is_single_cell_widths(text):
|
||
|
|
# Fast path with all 1 cell characters
|
||
|
|
if cut >= len(text):
|
||
|
|
return self, Segment("", style, control)
|
||
|
|
return (
|
||
|
|
Segment(text[:cut], style, control),
|
||
|
|
Segment(text[cut:], style, control),
|
||
|
|
)
|
||
|
|
|
||
|
|
return self._split_cells(self, cut)
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def line(cls) -> "Segment":
|
||
|
|
"""Make a new line segment."""
|
||
|
|
return cls("\n")
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def apply_style(
|
||
|
|
cls,
|
||
|
|
segments: Iterable["Segment"],
|
||
|
|
style: Optional[Style] = None,
|
||
|
|
post_style: Optional[Style] = None,
|
||
|
|
) -> Iterable["Segment"]:
|
||
|
|
"""Apply style(s) to an iterable of segments.
|
||
|
|
|
||
|
|
Returns an iterable of segments where the style is replaced by ``style + segment.style + post_style``.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
segments (Iterable[Segment]): Segments to process.
|
||
|
|
style (Style, optional): Base style. Defaults to None.
|
||
|
|
post_style (Style, optional): Style to apply on top of segment style. Defaults to None.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
Iterable[Segments]: A new iterable of segments (possibly the same iterable).
|
||
|
|
"""
|
||
|
|
result_segments = segments
|
||
|
|
if style:
|
||
|
|
apply = style.__add__
|
||
|
|
result_segments = (
|
||
|
|
cls(text, None if control else apply(_style), control)
|
||
|
|
for text, _style, control in result_segments
|
||
|
|
)
|
||
|
|
if post_style:
|
||
|
|
result_segments = (
|
||
|
|
cls(
|
||
|
|
text,
|
||
|
|
(
|
||
|
|
None
|
||
|
|
if control
|
||
|
|
else (_style + post_style if _style else post_style)
|
||
|
|
),
|
||
|
|
control,
|
||
|
|
)
|
||
|
|
for text, _style, control in result_segments
|
||
|
|
)
|
||
|
|
return result_segments
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def filter_control(
|
||
|
|
cls, segments: Iterable["Segment"], is_control: bool = False
|
||
|
|
) -> Iterable["Segment"]:
|
||
|
|
"""Filter segments by ``is_control`` attribute.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
segments (Iterable[Segment]): An iterable of Segment instances.
|
||
|
|
is_control (bool, optional): is_control flag to match in search.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
Iterable[Segment]: And iterable of Segment instances.
|
||
|
|
|
||
|
|
"""
|
||
|
|
if is_control:
|
||
|
|
return filter(attrgetter("control"), segments)
|
||
|
|
else:
|
||
|
|
return filterfalse(attrgetter("control"), segments)
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def split_lines(cls, segments: Iterable["Segment"]) -> Iterable[List["Segment"]]:
|
||
|
|
"""Split a sequence of segments in to a list of lines.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
segments (Iterable[Segment]): Segments potentially containing line feeds.
|
||
|
|
|
||
|
|
Yields:
|
||
|
|
Iterable[List[Segment]]: Iterable of segment lists, one per line.
|
||
|
|
"""
|
||
|
|
line: List[Segment] = []
|
||
|
|
append = line.append
|
||
|
|
|
||
|
|
for segment in segments:
|
||
|
|
if "\n" in segment.text and not segment.control:
|
||
|
|
text, style, _ = segment
|
||
|
|
while text:
|
||
|
|
_text, new_line, text = text.partition("\n")
|
||
|
|
if _text:
|
||
|
|
append(cls(_text, style))
|
||
|
|
if new_line:
|
||
|
|
yield line
|
||
|
|
line = []
|
||
|
|
append = line.append
|
||
|
|
else:
|
||
|
|
append(segment)
|
||
|
|
if line:
|
||
|
|
yield line
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def split_and_crop_lines(
|
||
|
|
cls,
|
||
|
|
segments: Iterable["Segment"],
|
||
|
|
length: int,
|
||
|
|
style: Optional[Style] = None,
|
||
|
|
pad: bool = True,
|
||
|
|
include_new_lines: bool = True,
|
||
|
|
) -> Iterable[List["Segment"]]:
|
||
|
|
"""Split segments in to lines, and crop lines greater than a given length.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
segments (Iterable[Segment]): An iterable of segments, probably
|
||
|
|
generated from console.render.
|
||
|
|
length (int): Desired line length.
|
||
|
|
style (Style, optional): Style to use for any padding.
|
||
|
|
pad (bool): Enable padding of lines that are less than `length`.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
Iterable[List[Segment]]: An iterable of lines of segments.
|
||
|
|
"""
|
||
|
|
line: List[Segment] = []
|
||
|
|
append = line.append
|
||
|
|
|
||
|
|
adjust_line_length = cls.adjust_line_length
|
||
|
|
new_line_segment = cls("\n")
|
||
|
|
|
||
|
|
for segment in segments:
|
||
|
|
if "\n" in segment.text and not segment.control:
|
||
|
|
text, segment_style, _ = segment
|
||
|
|
while text:
|
||
|
|
_text, new_line, text = text.partition("\n")
|
||
|
|
if _text:
|
||
|
|
append(cls(_text, segment_style))
|
||
|
|
if new_line:
|
||
|
|
cropped_line = adjust_line_length(
|
||
|
|
line, length, style=style, pad=pad
|
||
|
|
)
|
||
|
|
if include_new_lines:
|
||
|
|
cropped_line.append(new_line_segment)
|
||
|
|
yield cropped_line
|
||
|
|
line.clear()
|
||
|
|
else:
|
||
|
|
append(segment)
|
||
|
|
if line:
|
||
|
|
yield adjust_line_length(line, length, style=style, pad=pad)
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def adjust_line_length(
|
||
|
|
cls,
|
||
|
|
line: List["Segment"],
|
||
|
|
length: int,
|
||
|
|
style: Optional[Style] = None,
|
||
|
|
pad: bool = True,
|
||
|
|
) -> List["Segment"]:
|
||
|
|
"""Adjust a line to a given width (cropping or padding as required).
|
||
|
|
|
||
|
|
Args:
|
||
|
|
segments (Iterable[Segment]): A list of segments in a single line.
|
||
|
|
length (int): The desired width of the line.
|
||
|
|
style (Style, optional): The style of padding if used (space on the end). Defaults to None.
|
||
|
|
pad (bool, optional): Pad lines with spaces if they are shorter than `length`. Defaults to True.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
List[Segment]: A line of segments with the desired length.
|
||
|
|
"""
|
||
|
|
line_length = sum(segment.cell_length for segment in line)
|
||
|
|
new_line: List[Segment]
|
||
|
|
|
||
|
|
if line_length < length:
|
||
|
|
if pad:
|
||
|
|
new_line = line + [cls(" " * (length - line_length), style)]
|
||
|
|
else:
|
||
|
|
new_line = line[:]
|
||
|
|
elif line_length > length:
|
||
|
|
new_line = []
|
||
|
|
append = new_line.append
|
||
|
|
line_length = 0
|
||
|
|
for segment in line:
|
||
|
|
segment_length = segment.cell_length
|
||
|
|
if line_length + segment_length < length or segment.control:
|
||
|
|
append(segment)
|
||
|
|
line_length += segment_length
|
||
|
|
else:
|
||
|
|
text, segment_style, _ = segment
|
||
|
|
text = set_cell_size(text, length - line_length)
|
||
|
|
append(cls(text, segment_style))
|
||
|
|
break
|
||
|
|
else:
|
||
|
|
new_line = line[:]
|
||
|
|
return new_line
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def get_line_length(cls, line: List["Segment"]) -> int:
|
||
|
|
"""Get the length of list of segments.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
line (List[Segment]): A line encoded as a list of Segments (assumes no '\\\\n' characters),
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
int: The length of the line.
|
||
|
|
"""
|
||
|
|
_cell_len = cell_len
|
||
|
|
return sum(_cell_len(text) for text, style, control in line if not control)
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def get_shape(cls, lines: List[List["Segment"]]) -> Tuple[int, int]:
|
||
|
|
"""Get the shape (enclosing rectangle) of a list of lines.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
lines (List[List[Segment]]): A list of lines (no '\\\\n' characters).
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
Tuple[int, int]: Width and height in characters.
|
||
|
|
"""
|
||
|
|
get_line_length = cls.get_line_length
|
||
|
|
max_width = max(get_line_length(line) for line in lines) if lines else 0
|
||
|
|
return (max_width, len(lines))
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def set_shape(
|
||
|
|
cls,
|
||
|
|
lines: List[List["Segment"]],
|
||
|
|
width: int,
|
||
|
|
height: Optional[int] = None,
|
||
|
|
style: Optional[Style] = None,
|
||
|
|
new_lines: bool = False,
|
||
|
|
) -> List[List["Segment"]]:
|
||
|
|
"""Set the shape of a list of lines (enclosing rectangle).
|
||
|
|
|
||
|
|
Args:
|
||
|
|
lines (List[List[Segment]]): A list of lines.
|
||
|
|
width (int): Desired width.
|
||
|
|
height (int, optional): Desired height or None for no change.
|
||
|
|
style (Style, optional): Style of any padding added.
|
||
|
|
new_lines (bool, optional): Padded lines should include "\n". Defaults to False.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
List[List[Segment]]: New list of lines.
|
||
|
|
"""
|
||
|
|
_height = height or len(lines)
|
||
|
|
|
||
|
|
blank = (
|
||
|
|
[cls(" " * width + "\n", style)] if new_lines else [cls(" " * width, style)]
|
||
|
|
)
|
||
|
|
|
||
|
|
adjust_line_length = cls.adjust_line_length
|
||
|
|
shaped_lines = lines[:_height]
|
||
|
|
shaped_lines[:] = [
|
||
|
|
adjust_line_length(line, width, style=style) for line in lines
|
||
|
|
]
|
||
|
|
if len(shaped_lines) < _height:
|
||
|
|
shaped_lines.extend([blank] * (_height - len(shaped_lines)))
|
||
|
|
return shaped_lines
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def align_top(
|
||
|
|
cls: Type["Segment"],
|
||
|
|
lines: List[List["Segment"]],
|
||
|
|
width: int,
|
||
|
|
height: int,
|
||
|
|
style: Style,
|
||
|
|
new_lines: bool = False,
|
||
|
|
) -> List[List["Segment"]]:
|
||
|
|
"""Aligns lines to top (adds extra lines to bottom as required).
|
||
|
|
|
||
|
|
Args:
|
||
|
|
lines (List[List[Segment]]): A list of lines.
|
||
|
|
width (int): Desired width.
|
||
|
|
height (int, optional): Desired height or None for no change.
|
||
|
|
style (Style): Style of any padding added.
|
||
|
|
new_lines (bool, optional): Padded lines should include "\n". Defaults to False.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
List[List[Segment]]: New list of lines.
|
||
|
|
"""
|
||
|
|
extra_lines = height - len(lines)
|
||
|
|
if not extra_lines:
|
||
|
|
return lines[:]
|
||
|
|
lines = lines[:height]
|
||
|
|
blank = cls(" " * width + "\n", style) if new_lines else cls(" " * width, style)
|
||
|
|
lines = lines + [[blank]] * extra_lines
|
||
|
|
return lines
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def align_bottom(
|
||
|
|
cls: Type["Segment"],
|
||
|
|
lines: List[List["Segment"]],
|
||
|
|
width: int,
|
||
|
|
height: int,
|
||
|
|
style: Style,
|
||
|
|
new_lines: bool = False,
|
||
|
|
) -> List[List["Segment"]]:
|
||
|
|
"""Aligns render to bottom (adds extra lines above as required).
|
||
|
|
|
||
|
|
Args:
|
||
|
|
lines (List[List[Segment]]): A list of lines.
|
||
|
|
width (int): Desired width.
|
||
|
|
height (int, optional): Desired height or None for no change.
|
||
|
|
style (Style): Style of any padding added. Defaults to None.
|
||
|
|
new_lines (bool, optional): Padded lines should include "\n". Defaults to False.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
List[List[Segment]]: New list of lines.
|
||
|
|
"""
|
||
|
|
extra_lines = height - len(lines)
|
||
|
|
if not extra_lines:
|
||
|
|
return lines[:]
|
||
|
|
lines = lines[:height]
|
||
|
|
blank = cls(" " * width + "\n", style) if new_lines else cls(" " * width, style)
|
||
|
|
lines = [[blank]] * extra_lines + lines
|
||
|
|
return lines
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def align_middle(
|
||
|
|
cls: Type["Segment"],
|
||
|
|
lines: List[List["Segment"]],
|
||
|
|
width: int,
|
||
|
|
height: int,
|
||
|
|
style: Style,
|
||
|
|
new_lines: bool = False,
|
||
|
|
) -> List[List["Segment"]]:
|
||
|
|
"""Aligns lines to middle (adds extra lines to above and below as required).
|
||
|
|
|
||
|
|
Args:
|
||
|
|
lines (List[List[Segment]]): A list of lines.
|
||
|
|
width (int): Desired width.
|
||
|
|
height (int, optional): Desired height or None for no change.
|
||
|
|
style (Style): Style of any padding added.
|
||
|
|
new_lines (bool, optional): Padded lines should include "\n". Defaults to False.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
List[List[Segment]]: New list of lines.
|
||
|
|
"""
|
||
|
|
extra_lines = height - len(lines)
|
||
|
|
if not extra_lines:
|
||
|
|
return lines[:]
|
||
|
|
lines = lines[:height]
|
||
|
|
blank = cls(" " * width + "\n", style) if new_lines else cls(" " * width, style)
|
||
|
|
top_lines = extra_lines // 2
|
||
|
|
bottom_lines = extra_lines - top_lines
|
||
|
|
lines = [[blank]] * top_lines + lines + [[blank]] * bottom_lines
|
||
|
|
return lines
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def simplify(cls, segments: Iterable["Segment"]) -> Iterable["Segment"]:
|
||
|
|
"""Simplify an iterable of segments by combining contiguous segments with the same style.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
segments (Iterable[Segment]): An iterable of segments.
|
||
|
|
|
||
|
|
Returns:
|
||
|
|
Iterable[Segment]: A possibly smaller iterable of segments that will render the same way.
|
||
|
|
"""
|
||
|
|
iter_segments = iter(segments)
|
||
|
|
try:
|
||
|
|
last_segment = next(iter_segments)
|
||
|
|
except StopIteration:
|
||
|
|
return
|
||
|
|
|
||
|
|
_Segment = Segment
|
||
|
|
for segment in iter_segments:
|
||
|
|
if last_segment.style == segment.style and not segment.control:
|
||
|
|
last_segment = _Segment(
|
||
|
|
last_segment.text + segment.text, last_segment.style
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
yield last_segment
|
||
|
|
last_segment = segment
|
||
|
|
yield last_segment
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def strip_links(cls, segments: Iterable["Segment"]) -> Iterable["Segment"]:
|
||
|
|
"""Remove all links from an iterable of styles.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
segments (Iterable[Segment]): An iterable segments.
|
||
|
|
|
||
|
|
Yields:
|
||
|
|
Segment: Segments with link removed.
|
||
|
|
"""
|
||
|
|
for segment in segments:
|
||
|
|
if segment.control or segment.style is None:
|
||
|
|
yield segment
|
||
|
|
else:
|
||
|
|
text, style, _control = segment
|
||
|
|
yield cls(text, style.update_link(None) if style else None)
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def strip_styles(cls, segments: Iterable["Segment"]) -> Iterable["Segment"]:
|
||
|
|
"""Remove all styles from an iterable of segments.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
segments (Iterable[Segment]): An iterable segments.
|
||
|
|
|
||
|
|
Yields:
|
||
|
|
Segment: Segments with styles replace with None
|
||
|
|
"""
|
||
|
|
for text, _style, control in segments:
|
||
|
|
yield cls(text, None, control)
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def remove_color(cls, segments: Iterable["Segment"]) -> Iterable["Segment"]:
|
||
|
|
"""Remove all color from an iterable of segments.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
segments (Iterable[Segment]): An iterable segments.
|
||
|
|
|
||
|
|
Yields:
|
||
|
|
Segment: Segments with colorless style.
|
||
|
|
"""
|
||
|
|
|
||
|
|
cache: Dict[Style, Style] = {}
|
||
|
|
for text, style, control in segments:
|
||
|
|
if style:
|
||
|
|
colorless_style = cache.get(style)
|
||
|
|
if colorless_style is None:
|
||
|
|
colorless_style = style.without_color
|
||
|
|
cache[style] = colorless_style
|
||
|
|
yield cls(text, colorless_style, control)
|
||
|
|
else:
|
||
|
|
yield cls(text, None, control)
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def divide(
|
||
|
|
cls, segments: Iterable["Segment"], cuts: Iterable[int]
|
||
|
|
) -> Iterable[List["Segment"]]:
|
||
|
|
"""Divides an iterable of segments in to portions.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
cuts (Iterable[int]): Cell positions where to divide.
|
||
|
|
|
||
|
|
Yields:
|
||
|
|
[Iterable[List[Segment]]]: An iterable of Segments in List.
|
||
|
|
"""
|
||
|
|
split_segments: List["Segment"] = []
|
||
|
|
add_segment = split_segments.append
|
||
|
|
|
||
|
|
iter_cuts = iter(cuts)
|
||
|
|
|
||
|
|
while True:
|
||
|
|
cut = next(iter_cuts, -1)
|
||
|
|
if cut == -1:
|
||
|
|
return []
|
||
|
|
if cut != 0:
|
||
|
|
break
|
||
|
|
yield []
|
||
|
|
pos = 0
|
||
|
|
|
||
|
|
segments_clear = split_segments.clear
|
||
|
|
segments_copy = split_segments.copy
|
||
|
|
|
||
|
|
_cell_len = cached_cell_len
|
||
|
|
for segment in segments:
|
||
|
|
text, _style, control = segment
|
||
|
|
while text:
|
||
|
|
end_pos = pos if control else pos + _cell_len(text)
|
||
|
|
if end_pos < cut:
|
||
|
|
add_segment(segment)
|
||
|
|
pos = end_pos
|
||
|
|
break
|
||
|
|
|
||
|
|
if end_pos == cut:
|
||
|
|
add_segment(segment)
|
||
|
|
yield segments_copy()
|
||
|
|
segments_clear()
|
||
|
|
pos = end_pos
|
||
|
|
|
||
|
|
cut = next(iter_cuts, -1)
|
||
|
|
if cut == -1:
|
||
|
|
if split_segments:
|
||
|
|
yield segments_copy()
|
||
|
|
return
|
||
|
|
|
||
|
|
break
|
||
|
|
|
||
|
|
else:
|
||
|
|
before, segment = segment.split_cells(cut - pos)
|
||
|
|
text, _style, control = segment
|
||
|
|
add_segment(before)
|
||
|
|
yield segments_copy()
|
||
|
|
segments_clear()
|
||
|
|
pos = cut
|
||
|
|
|
||
|
|
cut = next(iter_cuts, -1)
|
||
|
|
if cut == -1:
|
||
|
|
if split_segments:
|
||
|
|
yield segments_copy()
|
||
|
|
return
|
||
|
|
|
||
|
|
yield segments_copy()
|
||
|
|
|
||
|
|
|
||
|
|
class Segments:
|
||
|
|
"""A simple renderable to render an iterable of segments. This class may be useful if
|
||
|
|
you want to print segments outside of a __rich_console__ method.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
segments (Iterable[Segment]): An iterable of segments.
|
||
|
|
new_lines (bool, optional): Add new lines between segments. Defaults to False.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, segments: Iterable[Segment], new_lines: bool = False) -> None:
|
||
|
|
self.segments = list(segments)
|
||
|
|
self.new_lines = new_lines
|
||
|
|
|
||
|
|
def __rich_console__(
|
||
|
|
self, console: "Console", options: "ConsoleOptions"
|
||
|
|
) -> "RenderResult":
|
||
|
|
if self.new_lines:
|
||
|
|
line = Segment.line()
|
||
|
|
for segment in self.segments:
|
||
|
|
yield segment
|
||
|
|
yield line
|
||
|
|
else:
|
||
|
|
yield from self.segments
|
||
|
|
|
||
|
|
|
||
|
|
class SegmentLines:
|
||
|
|
def __init__(self, lines: Iterable[List[Segment]], new_lines: bool = False) -> None:
|
||
|
|
"""A simple renderable containing a number of lines of segments. May be used as an intermediate
|
||
|
|
in rendering process.
|
||
|
|
|
||
|
|
Args:
|
||
|
|
lines (Iterable[List[Segment]]): Lists of segments forming lines.
|
||
|
|
new_lines (bool, optional): Insert new lines after each line. Defaults to False.
|
||
|
|
"""
|
||
|
|
self.lines = list(lines)
|
||
|
|
self.new_lines = new_lines
|
||
|
|
|
||
|
|
def __rich_console__(
|
||
|
|
self, console: "Console", options: "ConsoleOptions"
|
||
|
|
) -> "RenderResult":
|
||
|
|
if self.new_lines:
|
||
|
|
new_line = Segment.line()
|
||
|
|
for line in self.lines:
|
||
|
|
yield from line
|
||
|
|
yield new_line
|
||
|
|
else:
|
||
|
|
for line in self.lines:
|
||
|
|
yield from line
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__": # pragma: no cover
|
||
|
|
from pip._vendor.rich.console import Console
|
||
|
|
from pip._vendor.rich.syntax import Syntax
|
||
|
|
from pip._vendor.rich.text import Text
|
||
|
|
|
||
|
|
code = """from rich.console import Console
|
||
|
|
console = Console()
|
||
|
|
text = Text.from_markup("Hello, [bold magenta]World[/]!")
|
||
|
|
console.print(text)"""
|
||
|
|
|
||
|
|
text = Text.from_markup("Hello, [bold magenta]World[/]!")
|
||
|
|
|
||
|
|
console = Console()
|
||
|
|
|
||
|
|
console.rule("rich.Segment")
|
||
|
|
console.print(
|
||
|
|
"A Segment is the last step in the Rich render process before generating text with ANSI codes."
|
||
|
|
)
|
||
|
|
console.print("\nConsider the following code:\n")
|
||
|
|
console.print(Syntax(code, "python", line_numbers=True))
|
||
|
|
console.print()
|
||
|
|
console.print(
|
||
|
|
"When you call [b]print()[/b], Rich [i]renders[/i] the object in to the following:\n"
|
||
|
|
)
|
||
|
|
fragments = list(console.render(text))
|
||
|
|
console.print(fragments)
|
||
|
|
console.print()
|
||
|
|
console.print("The Segments are then processed to produce the following output:\n")
|
||
|
|
console.print(text)
|
||
|
|
console.print(
|
||
|
|
"\nYou will only need to know this if you are implementing your own Rich renderables."
|
||
|
|
)
|