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import inspect |
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import os |
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import sys |
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import threading |
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import zlib |
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from abc import ABC, abstractmethod |
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from dataclasses import dataclass, field |
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from datetime import datetime |
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from functools import wraps |
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from getpass import getpass |
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from html import escape |
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from inspect import isclass |
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from itertools import islice |
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from math import ceil |
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from time import monotonic |
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from types import FrameType, ModuleType, TracebackType |
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from typing import ( |
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IO, |
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TYPE_CHECKING, |
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Any, |
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Callable, |
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Dict, |
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Iterable, |
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List, |
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Mapping, |
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NamedTuple, |
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Optional, |
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TextIO, |
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Tuple, |
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Type, |
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Union, |
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cast, |
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) |
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|
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from rich._null_file import NULL_FILE |
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|
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if sys.version_info >= (3, 8): |
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from typing import Literal, Protocol, runtime_checkable |
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else: |
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from typing_extensions import ( |
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Literal, |
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Protocol, |
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runtime_checkable, |
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) |
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|
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from . import errors, themes |
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from ._emoji_replace import _emoji_replace |
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from ._export_format import CONSOLE_HTML_FORMAT, CONSOLE_SVG_FORMAT |
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from ._fileno import get_fileno |
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from ._log_render import FormatTimeCallable, LogRender |
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from .align import Align, AlignMethod |
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from .color import ColorSystem, blend_rgb |
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from .control import Control |
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from .emoji import EmojiVariant |
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from .highlighter import NullHighlighter, ReprHighlighter |
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from .markup import render as render_markup |
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from .measure import Measurement, measure_renderables |
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from .pager import Pager, SystemPager |
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from .pretty import Pretty, is_expandable |
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from .protocol import rich_cast |
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from .region import Region |
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from .scope import render_scope |
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from .screen import Screen |
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from .segment import Segment |
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from .style import Style, StyleType |
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from .styled import Styled |
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from .terminal_theme import DEFAULT_TERMINAL_THEME, SVG_EXPORT_THEME, TerminalTheme |
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from .text import Text, TextType |
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from .theme import Theme, ThemeStack |
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|
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if TYPE_CHECKING: |
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from ._windows import WindowsConsoleFeatures |
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from .live import Live |
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from .status import Status |
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|
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JUPYTER_DEFAULT_COLUMNS = 115 |
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JUPYTER_DEFAULT_LINES = 100 |
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WINDOWS = sys.platform == "win32" |
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|
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HighlighterType = Callable[[Union[str, "Text"]], "Text"] |
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JustifyMethod = Literal["default", "left", "center", "right", "full"] |
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OverflowMethod = Literal["fold", "crop", "ellipsis", "ignore"] |
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|
|
|
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class NoChange: |
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pass |
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|
|
|
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NO_CHANGE = NoChange() |
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|
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try: |
|
_STDIN_FILENO = sys.__stdin__.fileno() |
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except Exception: |
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_STDIN_FILENO = 0 |
|
try: |
|
_STDOUT_FILENO = sys.__stdout__.fileno() |
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except Exception: |
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_STDOUT_FILENO = 1 |
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try: |
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_STDERR_FILENO = sys.__stderr__.fileno() |
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except Exception: |
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_STDERR_FILENO = 2 |
|
|
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_STD_STREAMS = (_STDIN_FILENO, _STDOUT_FILENO, _STDERR_FILENO) |
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_STD_STREAMS_OUTPUT = (_STDOUT_FILENO, _STDERR_FILENO) |
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|
|
|
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_TERM_COLORS = { |
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"kitty": ColorSystem.EIGHT_BIT, |
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"256color": ColorSystem.EIGHT_BIT, |
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"16color": ColorSystem.STANDARD, |
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} |
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|
|
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class ConsoleDimensions(NamedTuple): |
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"""Size of the terminal.""" |
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|
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width: int |
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"""The width of the console in 'cells'.""" |
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height: int |
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"""The height of the console in lines.""" |
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|
|
|
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@dataclass |
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class ConsoleOptions: |
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"""Options for __rich_console__ method.""" |
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|
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size: ConsoleDimensions |
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"""Size of console.""" |
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legacy_windows: bool |
|
"""legacy_windows: flag for legacy windows.""" |
|
min_width: int |
|
"""Minimum width of renderable.""" |
|
max_width: int |
|
"""Maximum width of renderable.""" |
|
is_terminal: bool |
|
"""True if the target is a terminal, otherwise False.""" |
|
encoding: str |
|
"""Encoding of terminal.""" |
|
max_height: int |
|
"""Height of container (starts as terminal)""" |
|
justify: Optional[JustifyMethod] = None |
|
"""Justify value override for renderable.""" |
|
overflow: Optional[OverflowMethod] = None |
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"""Overflow value override for renderable.""" |
|
no_wrap: Optional[bool] = False |
|
"""Disable wrapping for text.""" |
|
highlight: Optional[bool] = None |
|
"""Highlight override for render_str.""" |
|
markup: Optional[bool] = None |
|
"""Enable markup when rendering strings.""" |
|
height: Optional[int] = None |
|
|
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@property |
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def ascii_only(self) -> bool: |
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"""Check if renderables should use ascii only.""" |
|
return not self.encoding.startswith("utf") |
|
|
|
def copy(self) -> "ConsoleOptions": |
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"""Return a copy of the options. |
|
|
|
Returns: |
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ConsoleOptions: a copy of self. |
|
""" |
|
options: ConsoleOptions = ConsoleOptions.__new__(ConsoleOptions) |
|
options.__dict__ = self.__dict__.copy() |
|
return options |
|
|
|
def update( |
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self, |
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*, |
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width: Union[int, NoChange] = NO_CHANGE, |
|
min_width: Union[int, NoChange] = NO_CHANGE, |
|
max_width: Union[int, NoChange] = NO_CHANGE, |
|
justify: Union[Optional[JustifyMethod], NoChange] = NO_CHANGE, |
|
overflow: Union[Optional[OverflowMethod], NoChange] = NO_CHANGE, |
|
no_wrap: Union[Optional[bool], NoChange] = NO_CHANGE, |
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highlight: Union[Optional[bool], NoChange] = NO_CHANGE, |
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markup: Union[Optional[bool], NoChange] = NO_CHANGE, |
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height: Union[Optional[int], NoChange] = NO_CHANGE, |
|
) -> "ConsoleOptions": |
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"""Update values, return a copy.""" |
|
options = self.copy() |
|
if not isinstance(width, NoChange): |
|
options.min_width = options.max_width = max(0, width) |
|
if not isinstance(min_width, NoChange): |
|
options.min_width = min_width |
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if not isinstance(max_width, NoChange): |
|
options.max_width = max_width |
|
if not isinstance(justify, NoChange): |
|
options.justify = justify |
|
if not isinstance(overflow, NoChange): |
|
options.overflow = overflow |
|
if not isinstance(no_wrap, NoChange): |
|
options.no_wrap = no_wrap |
|
if not isinstance(highlight, NoChange): |
|
options.highlight = highlight |
|
if not isinstance(markup, NoChange): |
|
options.markup = markup |
|
if not isinstance(height, NoChange): |
|
if height is not None: |
|
options.max_height = height |
|
options.height = None if height is None else max(0, height) |
|
return options |
|
|
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def update_width(self, width: int) -> "ConsoleOptions": |
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"""Update just the width, return a copy. |
|
|
|
Args: |
|
width (int): New width (sets both min_width and max_width) |
|
|
|
Returns: |
|
~ConsoleOptions: New console options instance. |
|
""" |
|
options = self.copy() |
|
options.min_width = options.max_width = max(0, width) |
|
return options |
|
|
|
def update_height(self, height: int) -> "ConsoleOptions": |
|
"""Update the height, and return a copy. |
|
|
|
Args: |
|
height (int): New height |
|
|
|
Returns: |
|
~ConsoleOptions: New Console options instance. |
|
""" |
|
options = self.copy() |
|
options.max_height = options.height = height |
|
return options |
|
|
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def reset_height(self) -> "ConsoleOptions": |
|
"""Return a copy of the options with height set to ``None``. |
|
|
|
Returns: |
|
~ConsoleOptions: New console options instance. |
|
""" |
|
options = self.copy() |
|
options.height = None |
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return options |
|
|
|
def update_dimensions(self, width: int, height: int) -> "ConsoleOptions": |
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"""Update the width and height, and return a copy. |
|
|
|
Args: |
|
width (int): New width (sets both min_width and max_width). |
|
height (int): New height. |
|
|
|
Returns: |
|
~ConsoleOptions: New console options instance. |
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""" |
|
options = self.copy() |
|
options.min_width = options.max_width = max(0, width) |
|
options.height = options.max_height = height |
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return options |
|
|
|
|
|
@runtime_checkable |
|
class RichCast(Protocol): |
|
"""An object that may be 'cast' to a console renderable.""" |
|
|
|
def __rich__( |
|
self, |
|
) -> Union["ConsoleRenderable", "RichCast", str]: |
|
... |
|
|
|
|
|
@runtime_checkable |
|
class ConsoleRenderable(Protocol): |
|
"""An object that supports the console protocol.""" |
|
|
|
def __rich_console__( |
|
self, console: "Console", options: "ConsoleOptions" |
|
) -> "RenderResult": |
|
... |
|
|
|
|
|
|
|
RenderableType = Union[ConsoleRenderable, RichCast, str] |
|
"""A string or any object that may be rendered by Rich.""" |
|
|
|
|
|
RenderResult = Iterable[Union[RenderableType, Segment]] |
|
|
|
_null_highlighter = NullHighlighter() |
|
|
|
|
|
class CaptureError(Exception): |
|
"""An error in the Capture context manager.""" |
|
|
|
|
|
class NewLine: |
|
"""A renderable to generate new line(s)""" |
|
|
|
def __init__(self, count: int = 1) -> None: |
|
self.count = count |
|
|
|
def __rich_console__( |
|
self, console: "Console", options: "ConsoleOptions" |
|
) -> Iterable[Segment]: |
|
yield Segment("\n" * self.count) |
|
|
|
|
|
class ScreenUpdate: |
|
"""Render a list of lines at a given offset.""" |
|
|
|
def __init__(self, lines: List[List[Segment]], x: int, y: int) -> None: |
|
self._lines = lines |
|
self.x = x |
|
self.y = y |
|
|
|
def __rich_console__( |
|
self, console: "Console", options: ConsoleOptions |
|
) -> RenderResult: |
|
x = self.x |
|
move_to = Control.move_to |
|
for offset, line in enumerate(self._lines, self.y): |
|
yield move_to(x, offset) |
|
yield from line |
|
|
|
|
|
class Capture: |
|
"""Context manager to capture the result of printing to the console. |
|
See :meth:`~rich.console.Console.capture` for how to use. |
|
|
|
Args: |
|
console (Console): A console instance to capture output. |
|
""" |
|
|
|
def __init__(self, console: "Console") -> None: |
|
self._console = console |
|
self._result: Optional[str] = None |
|
|
|
def __enter__(self) -> "Capture": |
|
self._console.begin_capture() |
|
return self |
|
|
|
def __exit__( |
|
self, |
|
exc_type: Optional[Type[BaseException]], |
|
exc_val: Optional[BaseException], |
|
exc_tb: Optional[TracebackType], |
|
) -> None: |
|
self._result = self._console.end_capture() |
|
|
|
def get(self) -> str: |
|
"""Get the result of the capture.""" |
|
if self._result is None: |
|
raise CaptureError( |
|
"Capture result is not available until context manager exits." |
|
) |
|
return self._result |
|
|
|
|
|
class ThemeContext: |
|
"""A context manager to use a temporary theme. See :meth:`~rich.console.Console.use_theme` for usage.""" |
|
|
|
def __init__(self, console: "Console", theme: Theme, inherit: bool = True) -> None: |
|
self.console = console |
|
self.theme = theme |
|
self.inherit = inherit |
|
|
|
def __enter__(self) -> "ThemeContext": |
|
self.console.push_theme(self.theme) |
|
return self |
|
|
|
def __exit__( |
|
self, |
|
exc_type: Optional[Type[BaseException]], |
|
exc_val: Optional[BaseException], |
|
exc_tb: Optional[TracebackType], |
|
) -> None: |
|
self.console.pop_theme() |
|
|
|
|
|
class PagerContext: |
|
"""A context manager that 'pages' content. See :meth:`~rich.console.Console.pager` for usage.""" |
|
|
|
def __init__( |
|
self, |
|
console: "Console", |
|
pager: Optional[Pager] = None, |
|
styles: bool = False, |
|
links: bool = False, |
|
) -> None: |
|
self._console = console |
|
self.pager = SystemPager() if pager is None else pager |
|
self.styles = styles |
|
self.links = links |
|
|
|
def __enter__(self) -> "PagerContext": |
|
self._console._enter_buffer() |
|
return self |
|
|
|
def __exit__( |
|
self, |
|
exc_type: Optional[Type[BaseException]], |
|
exc_val: Optional[BaseException], |
|
exc_tb: Optional[TracebackType], |
|
) -> None: |
|
if exc_type is None: |
|
with self._console._lock: |
|
buffer: List[Segment] = self._console._buffer[:] |
|
del self._console._buffer[:] |
|
segments: Iterable[Segment] = buffer |
|
if not self.styles: |
|
segments = Segment.strip_styles(segments) |
|
elif not self.links: |
|
segments = Segment.strip_links(segments) |
|
content = self._console._render_buffer(segments) |
|
self.pager.show(content) |
|
self._console._exit_buffer() |
|
|
|
|
|
class ScreenContext: |
|
"""A context manager that enables an alternative screen. See :meth:`~rich.console.Console.screen` for usage.""" |
|
|
|
def __init__( |
|
self, console: "Console", hide_cursor: bool, style: StyleType = "" |
|
) -> None: |
|
self.console = console |
|
self.hide_cursor = hide_cursor |
|
self.screen = Screen(style=style) |
|
self._changed = False |
|
|
|
def update( |
|
self, *renderables: RenderableType, style: Optional[StyleType] = None |
|
) -> None: |
|
"""Update the screen. |
|
|
|
Args: |
|
renderable (RenderableType, optional): Optional renderable to replace current renderable, |
|
or None for no change. Defaults to None. |
|
style: (Style, optional): Replacement style, or None for no change. Defaults to None. |
|
""" |
|
if renderables: |
|
self.screen.renderable = ( |
|
Group(*renderables) if len(renderables) > 1 else renderables[0] |
|
) |
|
if style is not None: |
|
self.screen.style = style |
|
self.console.print(self.screen, end="") |
|
|
|
def __enter__(self) -> "ScreenContext": |
|
self._changed = self.console.set_alt_screen(True) |
|
if self._changed and self.hide_cursor: |
|
self.console.show_cursor(False) |
|
return self |
|
|
|
def __exit__( |
|
self, |
|
exc_type: Optional[Type[BaseException]], |
|
exc_val: Optional[BaseException], |
|
exc_tb: Optional[TracebackType], |
|
) -> None: |
|
if self._changed: |
|
self.console.set_alt_screen(False) |
|
if self.hide_cursor: |
|
self.console.show_cursor(True) |
|
|
|
|
|
class Group: |
|
"""Takes a group of renderables and returns a renderable object that renders the group. |
|
|
|
Args: |
|
renderables (Iterable[RenderableType]): An iterable of renderable objects. |
|
fit (bool, optional): Fit dimension of group to contents, or fill available space. Defaults to True. |
|
""" |
|
|
|
def __init__(self, *renderables: "RenderableType", fit: bool = True) -> None: |
|
self._renderables = renderables |
|
self.fit = fit |
|
self._render: Optional[List[RenderableType]] = None |
|
|
|
@property |
|
def renderables(self) -> List["RenderableType"]: |
|
if self._render is None: |
|
self._render = list(self._renderables) |
|
return self._render |
|
|
|
def __rich_measure__( |
|
self, console: "Console", options: "ConsoleOptions" |
|
) -> "Measurement": |
|
if self.fit: |
|
return measure_renderables(console, options, self.renderables) |
|
else: |
|
return Measurement(options.max_width, options.max_width) |
|
|
|
def __rich_console__( |
|
self, console: "Console", options: "ConsoleOptions" |
|
) -> RenderResult: |
|
yield from self.renderables |
|
|
|
|
|
def group(fit: bool = True) -> Callable[..., Callable[..., Group]]: |
|
"""A decorator that turns an iterable of renderables in to a group. |
|
|
|
Args: |
|
fit (bool, optional): Fit dimension of group to contents, or fill available space. Defaults to True. |
|
""" |
|
|
|
def decorator( |
|
method: Callable[..., Iterable[RenderableType]] |
|
) -> Callable[..., Group]: |
|
"""Convert a method that returns an iterable of renderables in to a Group.""" |
|
|
|
@wraps(method) |
|
def _replace(*args: Any, **kwargs: Any) -> Group: |
|
renderables = method(*args, **kwargs) |
|
return Group(*renderables, fit=fit) |
|
|
|
return _replace |
|
|
|
return decorator |
|
|
|
|
|
def _is_jupyter() -> bool: |
|
"""Check if we're running in a Jupyter notebook.""" |
|
try: |
|
get_ipython |
|
except NameError: |
|
return False |
|
ipython = get_ipython() |
|
shell = ipython.__class__.__name__ |
|
if ( |
|
"google.colab" in str(ipython.__class__) |
|
or os.getenv("DATABRICKS_RUNTIME_VERSION") |
|
or shell == "ZMQInteractiveShell" |
|
): |
|
return True |
|
elif shell == "TerminalInteractiveShell": |
|
return False |
|
else: |
|
return False |
|
|
|
|
|
COLOR_SYSTEMS = { |
|
"standard": ColorSystem.STANDARD, |
|
"256": ColorSystem.EIGHT_BIT, |
|
"truecolor": ColorSystem.TRUECOLOR, |
|
"windows": ColorSystem.WINDOWS, |
|
} |
|
|
|
_COLOR_SYSTEMS_NAMES = {system: name for name, system in COLOR_SYSTEMS.items()} |
|
|
|
|
|
@dataclass |
|
class ConsoleThreadLocals(threading.local): |
|
"""Thread local values for Console context.""" |
|
|
|
theme_stack: ThemeStack |
|
buffer: List[Segment] = field(default_factory=list) |
|
buffer_index: int = 0 |
|
|
|
|
|
class RenderHook(ABC): |
|
"""Provides hooks in to the render process.""" |
|
|
|
@abstractmethod |
|
def process_renderables( |
|
self, renderables: List[ConsoleRenderable] |
|
) -> List[ConsoleRenderable]: |
|
"""Called with a list of objects to render. |
|
|
|
This method can return a new list of renderables, or modify and return the same list. |
|
|
|
Args: |
|
renderables (List[ConsoleRenderable]): A number of renderable objects. |
|
|
|
Returns: |
|
List[ConsoleRenderable]: A replacement list of renderables. |
|
""" |
|
|
|
|
|
_windows_console_features: Optional["WindowsConsoleFeatures"] = None |
|
|
|
|
|
def get_windows_console_features() -> "WindowsConsoleFeatures": |
|
global _windows_console_features |
|
if _windows_console_features is not None: |
|
return _windows_console_features |
|
from ._windows import get_windows_console_features |
|
|
|
_windows_console_features = get_windows_console_features() |
|
return _windows_console_features |
|
|
|
|
|
def detect_legacy_windows() -> bool: |
|
"""Detect legacy Windows.""" |
|
return WINDOWS and not get_windows_console_features().vt |
|
|
|
|
|
class Console: |
|
"""A high level console interface. |
|
|
|
Args: |
|
color_system (str, optional): The color system supported by your terminal, |
|
either ``"standard"``, ``"256"`` or ``"truecolor"``. Leave as ``"auto"`` to autodetect. |
|
force_terminal (Optional[bool], optional): Enable/disable terminal control codes, or None to auto-detect terminal. Defaults to None. |
|
force_jupyter (Optional[bool], optional): Enable/disable Jupyter rendering, or None to auto-detect Jupyter. Defaults to None. |
|
force_interactive (Optional[bool], optional): Enable/disable interactive mode, or None to auto detect. Defaults to None. |
|
soft_wrap (Optional[bool], optional): Set soft wrap default on print method. Defaults to False. |
|
theme (Theme, optional): An optional style theme object, or ``None`` for default theme. |
|
stderr (bool, optional): Use stderr rather than stdout if ``file`` is not specified. Defaults to False. |
|
file (IO, optional): A file object where the console should write to. Defaults to stdout. |
|
quiet (bool, Optional): Boolean to suppress all output. Defaults to False. |
|
width (int, optional): The width of the terminal. Leave as default to auto-detect width. |
|
height (int, optional): The height of the terminal. Leave as default to auto-detect height. |
|
style (StyleType, optional): Style to apply to all output, or None for no style. Defaults to None. |
|
no_color (Optional[bool], optional): Enabled no color mode, or None to auto detect. Defaults to None. |
|
tab_size (int, optional): Number of spaces used to replace a tab character. Defaults to 8. |
|
record (bool, optional): Boolean to enable recording of terminal output, |
|
required to call :meth:`export_html`, :meth:`export_svg`, and :meth:`export_text`. Defaults to False. |
|
markup (bool, optional): Boolean to enable :ref:`console_markup`. Defaults to True. |
|
emoji (bool, optional): Enable emoji code. Defaults to True. |
|
emoji_variant (str, optional): Optional emoji variant, either "text" or "emoji". Defaults to None. |
|
highlight (bool, optional): Enable automatic highlighting. Defaults to True. |
|
log_time (bool, optional): Boolean to enable logging of time by :meth:`log` methods. Defaults to True. |
|
log_path (bool, optional): Boolean to enable the logging of the caller by :meth:`log`. Defaults to True. |
|
log_time_format (Union[str, TimeFormatterCallable], optional): If ``log_time`` is enabled, either string for strftime or callable that formats the time. Defaults to "[%X] ". |
|
highlighter (HighlighterType, optional): Default highlighter. |
|
legacy_windows (bool, optional): Enable legacy Windows mode, or ``None`` to auto detect. Defaults to ``None``. |
|
safe_box (bool, optional): Restrict box options that don't render on legacy Windows. |
|
get_datetime (Callable[[], datetime], optional): Callable that gets the current time as a datetime.datetime object (used by Console.log), |
|
or None for datetime.now. |
|
get_time (Callable[[], time], optional): Callable that gets the current time in seconds, default uses time.monotonic. |
|
""" |
|
|
|
_environ: Mapping[str, str] = os.environ |
|
|
|
def __init__( |
|
self, |
|
*, |
|
color_system: Optional[ |
|
Literal["auto", "standard", "256", "truecolor", "windows"] |
|
] = "auto", |
|
force_terminal: Optional[bool] = None, |
|
force_jupyter: Optional[bool] = None, |
|
force_interactive: Optional[bool] = None, |
|
soft_wrap: bool = False, |
|
theme: Optional[Theme] = None, |
|
stderr: bool = False, |
|
file: Optional[IO[str]] = None, |
|
quiet: bool = False, |
|
width: Optional[int] = None, |
|
height: Optional[int] = None, |
|
style: Optional[StyleType] = None, |
|
no_color: Optional[bool] = None, |
|
tab_size: int = 8, |
|
record: bool = False, |
|
markup: bool = True, |
|
emoji: bool = True, |
|
emoji_variant: Optional[EmojiVariant] = None, |
|
highlight: bool = True, |
|
log_time: bool = True, |
|
log_path: bool = True, |
|
log_time_format: Union[str, FormatTimeCallable] = "[%X]", |
|
highlighter: Optional["HighlighterType"] = ReprHighlighter(), |
|
legacy_windows: Optional[bool] = None, |
|
safe_box: bool = True, |
|
get_datetime: Optional[Callable[[], datetime]] = None, |
|
get_time: Optional[Callable[[], float]] = None, |
|
_environ: Optional[Mapping[str, str]] = None, |
|
): |
|
|
|
if _environ is not None: |
|
self._environ = _environ |
|
|
|
self.is_jupyter = _is_jupyter() if force_jupyter is None else force_jupyter |
|
if self.is_jupyter: |
|
if width is None: |
|
jupyter_columns = self._environ.get("JUPYTER_COLUMNS") |
|
if jupyter_columns is not None and jupyter_columns.isdigit(): |
|
width = int(jupyter_columns) |
|
else: |
|
width = JUPYTER_DEFAULT_COLUMNS |
|
if height is None: |
|
jupyter_lines = self._environ.get("JUPYTER_LINES") |
|
if jupyter_lines is not None and jupyter_lines.isdigit(): |
|
height = int(jupyter_lines) |
|
else: |
|
height = JUPYTER_DEFAULT_LINES |
|
|
|
self.tab_size = tab_size |
|
self.record = record |
|
self._markup = markup |
|
self._emoji = emoji |
|
self._emoji_variant: Optional[EmojiVariant] = emoji_variant |
|
self._highlight = highlight |
|
self.legacy_windows: bool = ( |
|
(detect_legacy_windows() and not self.is_jupyter) |
|
if legacy_windows is None |
|
else legacy_windows |
|
) |
|
|
|
if width is None: |
|
columns = self._environ.get("COLUMNS") |
|
if columns is not None and columns.isdigit(): |
|
width = int(columns) - self.legacy_windows |
|
if height is None: |
|
lines = self._environ.get("LINES") |
|
if lines is not None and lines.isdigit(): |
|
height = int(lines) |
|
|
|
self.soft_wrap = soft_wrap |
|
self._width = width |
|
self._height = height |
|
|
|
self._color_system: Optional[ColorSystem] |
|
|
|
self._force_terminal = None |
|
if force_terminal is not None: |
|
self._force_terminal = force_terminal |
|
|
|
self._file = file |
|
self.quiet = quiet |
|
self.stderr = stderr |
|
|
|
if color_system is None: |
|
self._color_system = None |
|
elif color_system == "auto": |
|
self._color_system = self._detect_color_system() |
|
else: |
|
self._color_system = COLOR_SYSTEMS[color_system] |
|
|
|
self._lock = threading.RLock() |
|
self._log_render = LogRender( |
|
show_time=log_time, |
|
show_path=log_path, |
|
time_format=log_time_format, |
|
) |
|
self.highlighter: HighlighterType = highlighter or _null_highlighter |
|
self.safe_box = safe_box |
|
self.get_datetime = get_datetime or datetime.now |
|
self.get_time = get_time or monotonic |
|
self.style = style |
|
self.no_color = ( |
|
no_color if no_color is not None else "NO_COLOR" in self._environ |
|
) |
|
self.is_interactive = ( |
|
(self.is_terminal and not self.is_dumb_terminal) |
|
if force_interactive is None |
|
else force_interactive |
|
) |
|
|
|
self._record_buffer_lock = threading.RLock() |
|
self._thread_locals = ConsoleThreadLocals( |
|
theme_stack=ThemeStack(themes.DEFAULT if theme is None else theme) |
|
) |
|
self._record_buffer: List[Segment] = [] |
|
self._render_hooks: List[RenderHook] = [] |
|
self._live: Optional["Live"] = None |
|
self._is_alt_screen = False |
|
|
|
def __repr__(self) -> str: |
|
return f"<console width={self.width} {self._color_system!s}>" |
|
|
|
@property |
|
def file(self) -> IO[str]: |
|
"""Get the file object to write to.""" |
|
file = self._file or (sys.stderr if self.stderr else sys.stdout) |
|
file = getattr(file, "rich_proxied_file", file) |
|
if file is None: |
|
file = NULL_FILE |
|
return file |
|
|
|
@file.setter |
|
def file(self, new_file: IO[str]) -> None: |
|
"""Set a new file object.""" |
|
self._file = new_file |
|
|
|
@property |
|
def _buffer(self) -> List[Segment]: |
|
"""Get a thread local buffer.""" |
|
return self._thread_locals.buffer |
|
|
|
@property |
|
def _buffer_index(self) -> int: |
|
"""Get a thread local buffer.""" |
|
return self._thread_locals.buffer_index |
|
|
|
@_buffer_index.setter |
|
def _buffer_index(self, value: int) -> None: |
|
self._thread_locals.buffer_index = value |
|
|
|
@property |
|
def _theme_stack(self) -> ThemeStack: |
|
"""Get the thread local theme stack.""" |
|
return self._thread_locals.theme_stack |
|
|
|
def _detect_color_system(self) -> Optional[ColorSystem]: |
|
"""Detect color system from env vars.""" |
|
if self.is_jupyter: |
|
return ColorSystem.TRUECOLOR |
|
if not self.is_terminal or self.is_dumb_terminal: |
|
return None |
|
if WINDOWS: |
|
if self.legacy_windows: |
|
return ColorSystem.WINDOWS |
|
windows_console_features = get_windows_console_features() |
|
return ( |
|
ColorSystem.TRUECOLOR |
|
if windows_console_features.truecolor |
|
else ColorSystem.EIGHT_BIT |
|
) |
|
else: |
|
color_term = self._environ.get("COLORTERM", "").strip().lower() |
|
if color_term in ("truecolor", "24bit"): |
|
return ColorSystem.TRUECOLOR |
|
term = self._environ.get("TERM", "").strip().lower() |
|
_term_name, _hyphen, colors = term.rpartition("-") |
|
color_system = _TERM_COLORS.get(colors, ColorSystem.STANDARD) |
|
return color_system |
|
|
|
def _enter_buffer(self) -> None: |
|
"""Enter in to a buffer context, and buffer all output.""" |
|
self._buffer_index += 1 |
|
|
|
def _exit_buffer(self) -> None: |
|
"""Leave buffer context, and render content if required.""" |
|
self._buffer_index -= 1 |
|
self._check_buffer() |
|
|
|
def set_live(self, live: "Live") -> None: |
|
"""Set Live instance. Used by Live context manager. |
|
|
|
Args: |
|
live (Live): Live instance using this Console. |
|
|
|
Raises: |
|
errors.LiveError: If this Console has a Live context currently active. |
|
""" |
|
with self._lock: |
|
if self._live is not None: |
|
raise errors.LiveError("Only one live display may be active at once") |
|
self._live = live |
|
|
|
def clear_live(self) -> None: |
|
"""Clear the Live instance.""" |
|
with self._lock: |
|
self._live = None |
|
|
|
def push_render_hook(self, hook: RenderHook) -> None: |
|
"""Add a new render hook to the stack. |
|
|
|
Args: |
|
hook (RenderHook): Render hook instance. |
|
""" |
|
with self._lock: |
|
self._render_hooks.append(hook) |
|
|
|
def pop_render_hook(self) -> None: |
|
"""Pop the last renderhook from the stack.""" |
|
with self._lock: |
|
self._render_hooks.pop() |
|
|
|
def __enter__(self) -> "Console": |
|
"""Own context manager to enter buffer context.""" |
|
self._enter_buffer() |
|
return self |
|
|
|
def __exit__(self, exc_type: Any, exc_value: Any, traceback: Any) -> None: |
|
"""Exit buffer context.""" |
|
self._exit_buffer() |
|
|
|
def begin_capture(self) -> None: |
|
"""Begin capturing console output. Call :meth:`end_capture` to exit capture mode and return output.""" |
|
self._enter_buffer() |
|
|
|
def end_capture(self) -> str: |
|
"""End capture mode and return captured string. |
|
|
|
Returns: |
|
str: Console output. |
|
""" |
|
render_result = self._render_buffer(self._buffer) |
|
del self._buffer[:] |
|
self._exit_buffer() |
|
return render_result |
|
|
|
def push_theme(self, theme: Theme, *, inherit: bool = True) -> None: |
|
"""Push a new theme on to the top of the stack, replacing the styles from the previous theme. |
|
Generally speaking, you should call :meth:`~rich.console.Console.use_theme` to get a context manager, rather |
|
than calling this method directly. |
|
|
|
Args: |
|
theme (Theme): A theme instance. |
|
inherit (bool, optional): Inherit existing styles. Defaults to True. |
|
""" |
|
self._theme_stack.push_theme(theme, inherit=inherit) |
|
|
|
def pop_theme(self) -> None: |
|
"""Remove theme from top of stack, restoring previous theme.""" |
|
self._theme_stack.pop_theme() |
|
|
|
def use_theme(self, theme: Theme, *, inherit: bool = True) -> ThemeContext: |
|
"""Use a different theme for the duration of the context manager. |
|
|
|
Args: |
|
theme (Theme): Theme instance to user. |
|
inherit (bool, optional): Inherit existing console styles. Defaults to True. |
|
|
|
Returns: |
|
ThemeContext: [description] |
|
""" |
|
return ThemeContext(self, theme, inherit) |
|
|
|
@property |
|
def color_system(self) -> Optional[str]: |
|
"""Get color system string. |
|
|
|
Returns: |
|
Optional[str]: "standard", "256" or "truecolor". |
|
""" |
|
|
|
if self._color_system is not None: |
|
return _COLOR_SYSTEMS_NAMES[self._color_system] |
|
else: |
|
return None |
|
|
|
@property |
|
def encoding(self) -> str: |
|
"""Get the encoding of the console file, e.g. ``"utf-8"``. |
|
|
|
Returns: |
|
str: A standard encoding string. |
|
""" |
|
return (getattr(self.file, "encoding", "utf-8") or "utf-8").lower() |
|
|
|
@property |
|
def is_terminal(self) -> bool: |
|
"""Check if the console is writing to a terminal. |
|
|
|
Returns: |
|
bool: True if the console writing to a device capable of |
|
understanding terminal codes, otherwise False. |
|
""" |
|
if self._force_terminal is not None: |
|
return self._force_terminal |
|
|
|
if hasattr(sys.stdin, "__module__") and sys.stdin.__module__.startswith( |
|
"idlelib" |
|
): |
|
|
|
return False |
|
|
|
if self.is_jupyter: |
|
|
|
return False |
|
|
|
|
|
force_color = self._environ.get("FORCE_COLOR") |
|
if force_color is not None: |
|
self._force_terminal = True |
|
return True |
|
|
|
isatty: Optional[Callable[[], bool]] = getattr(self.file, "isatty", None) |
|
try: |
|
return False if isatty is None else isatty() |
|
except ValueError: |
|
|
|
|
|
|
|
return False |
|
|
|
@property |
|
def is_dumb_terminal(self) -> bool: |
|
"""Detect dumb terminal. |
|
|
|
Returns: |
|
bool: True if writing to a dumb terminal, otherwise False. |
|
|
|
""" |
|
_term = self._environ.get("TERM", "") |
|
is_dumb = _term.lower() in ("dumb", "unknown") |
|
return self.is_terminal and is_dumb |
|
|
|
@property |
|
def options(self) -> ConsoleOptions: |
|
"""Get default console options.""" |
|
return ConsoleOptions( |
|
max_height=self.size.height, |
|
size=self.size, |
|
legacy_windows=self.legacy_windows, |
|
min_width=1, |
|
max_width=self.width, |
|
encoding=self.encoding, |
|
is_terminal=self.is_terminal, |
|
) |
|
|
|
@property |
|
def size(self) -> ConsoleDimensions: |
|
"""Get the size of the console. |
|
|
|
Returns: |
|
ConsoleDimensions: A named tuple containing the dimensions. |
|
""" |
|
|
|
if self._width is not None and self._height is not None: |
|
return ConsoleDimensions(self._width - self.legacy_windows, self._height) |
|
|
|
if self.is_dumb_terminal: |
|
return ConsoleDimensions(80, 25) |
|
|
|
width: Optional[int] = None |
|
height: Optional[int] = None |
|
|
|
if WINDOWS: |
|
try: |
|
width, height = os.get_terminal_size() |
|
except (AttributeError, ValueError, OSError): |
|
pass |
|
else: |
|
for file_descriptor in _STD_STREAMS: |
|
try: |
|
width, height = os.get_terminal_size(file_descriptor) |
|
except (AttributeError, ValueError, OSError): |
|
pass |
|
else: |
|
break |
|
|
|
columns = self._environ.get("COLUMNS") |
|
if columns is not None and columns.isdigit(): |
|
width = int(columns) |
|
lines = self._environ.get("LINES") |
|
if lines is not None and lines.isdigit(): |
|
height = int(lines) |
|
|
|
|
|
width = width or 80 |
|
height = height or 25 |
|
return ConsoleDimensions( |
|
width - self.legacy_windows if self._width is None else self._width, |
|
height if self._height is None else self._height, |
|
) |
|
|
|
@size.setter |
|
def size(self, new_size: Tuple[int, int]) -> None: |
|
"""Set a new size for the terminal. |
|
|
|
Args: |
|
new_size (Tuple[int, int]): New width and height. |
|
""" |
|
width, height = new_size |
|
self._width = width |
|
self._height = height |
|
|
|
@property |
|
def width(self) -> int: |
|
"""Get the width of the console. |
|
|
|
Returns: |
|
int: The width (in characters) of the console. |
|
""" |
|
return self.size.width |
|
|
|
@width.setter |
|
def width(self, width: int) -> None: |
|
"""Set width. |
|
|
|
Args: |
|
width (int): New width. |
|
""" |
|
self._width = width |
|
|
|
@property |
|
def height(self) -> int: |
|
"""Get the height of the console. |
|
|
|
Returns: |
|
int: The height (in lines) of the console. |
|
""" |
|
return self.size.height |
|
|
|
@height.setter |
|
def height(self, height: int) -> None: |
|
"""Set height. |
|
|
|
Args: |
|
height (int): new height. |
|
""" |
|
self._height = height |
|
|
|
def bell(self) -> None: |
|
"""Play a 'bell' sound (if supported by the terminal).""" |
|
self.control(Control.bell()) |
|
|
|
def capture(self) -> Capture: |
|
"""A context manager to *capture* the result of print() or log() in a string, |
|
rather than writing it to the console. |
|
|
|
Example: |
|
>>> from rich.console import Console |
|
>>> console = Console() |
|
>>> with console.capture() as capture: |
|
... console.print("[bold magenta]Hello World[/]") |
|
>>> print(capture.get()) |
|
|
|
Returns: |
|
Capture: Context manager with disables writing to the terminal. |
|
""" |
|
capture = Capture(self) |
|
return capture |
|
|
|
def pager( |
|
self, pager: Optional[Pager] = None, styles: bool = False, links: bool = False |
|
) -> PagerContext: |
|
"""A context manager to display anything printed within a "pager". The pager application |
|
is defined by the system and will typically support at least pressing a key to scroll. |
|
|
|
Args: |
|
pager (Pager, optional): A pager object, or None to use :class:`~rich.pager.SystemPager`. Defaults to None. |
|
styles (bool, optional): Show styles in pager. Defaults to False. |
|
links (bool, optional): Show links in pager. Defaults to False. |
|
|
|
Example: |
|
>>> from rich.console import Console |
|
>>> from rich.__main__ import make_test_card |
|
>>> console = Console() |
|
>>> with console.pager(): |
|
console.print(make_test_card()) |
|
|
|
Returns: |
|
PagerContext: A context manager. |
|
""" |
|
return PagerContext(self, pager=pager, styles=styles, links=links) |
|
|
|
def line(self, count: int = 1) -> None: |
|
"""Write new line(s). |
|
|
|
Args: |
|
count (int, optional): Number of new lines. Defaults to 1. |
|
""" |
|
|
|
assert count >= 0, "count must be >= 0" |
|
self.print(NewLine(count)) |
|
|
|
def clear(self, home: bool = True) -> None: |
|
"""Clear the screen. |
|
|
|
Args: |
|
home (bool, optional): Also move the cursor to 'home' position. Defaults to True. |
|
""" |
|
if home: |
|
self.control(Control.clear(), Control.home()) |
|
else: |
|
self.control(Control.clear()) |
|
|
|
def status( |
|
self, |
|
status: RenderableType, |
|
*, |
|
spinner: str = "dots", |
|
spinner_style: StyleType = "status.spinner", |
|
speed: float = 1.0, |
|
refresh_per_second: float = 12.5, |
|
) -> "Status": |
|
"""Display a status and spinner. |
|
|
|
Args: |
|
status (RenderableType): A status renderable (str or Text typically). |
|
spinner (str, optional): Name of spinner animation (see python -m rich.spinner). Defaults to "dots". |
|
spinner_style (StyleType, optional): Style of spinner. Defaults to "status.spinner". |
|
speed (float, optional): Speed factor for spinner animation. Defaults to 1.0. |
|
refresh_per_second (float, optional): Number of refreshes per second. Defaults to 12.5. |
|
|
|
Returns: |
|
Status: A Status object that may be used as a context manager. |
|
""" |
|
from .status import Status |
|
|
|
status_renderable = Status( |
|
status, |
|
console=self, |
|
spinner=spinner, |
|
spinner_style=spinner_style, |
|
speed=speed, |
|
refresh_per_second=refresh_per_second, |
|
) |
|
return status_renderable |
|
|
|
def show_cursor(self, show: bool = True) -> bool: |
|
"""Show or hide the cursor. |
|
|
|
Args: |
|
show (bool, optional): Set visibility of the cursor. |
|
""" |
|
if self.is_terminal: |
|
self.control(Control.show_cursor(show)) |
|
return True |
|
return False |
|
|
|
def set_alt_screen(self, enable: bool = True) -> bool: |
|
"""Enables alternative screen mode. |
|
|
|
Note, if you enable this mode, you should ensure that is disabled before |
|
the application exits. See :meth:`~rich.Console.screen` for a context manager |
|
that handles this for you. |
|
|
|
Args: |
|
enable (bool, optional): Enable (True) or disable (False) alternate screen. Defaults to True. |
|
|
|
Returns: |
|
bool: True if the control codes were written. |
|
|
|
""" |
|
changed = False |
|
if self.is_terminal and not self.legacy_windows: |
|
self.control(Control.alt_screen(enable)) |
|
changed = True |
|
self._is_alt_screen = enable |
|
return changed |
|
|
|
@property |
|
def is_alt_screen(self) -> bool: |
|
"""Check if the alt screen was enabled. |
|
|
|
Returns: |
|
bool: True if the alt screen was enabled, otherwise False. |
|
""" |
|
return self._is_alt_screen |
|
|
|
def set_window_title(self, title: str) -> bool: |
|
"""Set the title of the console terminal window. |
|
|
|
Warning: There is no means within Rich of "resetting" the window title to its |
|
previous value, meaning the title you set will persist even after your application |
|
exits. |
|
|
|
``fish`` shell resets the window title before and after each command by default, |
|
negating this issue. Windows Terminal and command prompt will also reset the title for you. |
|
Most other shells and terminals, however, do not do this. |
|
|
|
Some terminals may require configuration changes before you can set the title. |
|
Some terminals may not support setting the title at all. |
|
|
|
Other software (including the terminal itself, the shell, custom prompts, plugins, etc.) |
|
may also set the terminal window title. This could result in whatever value you write |
|
using this method being overwritten. |
|
|
|
Args: |
|
title (str): The new title of the terminal window. |
|
|
|
Returns: |
|
bool: True if the control code to change the terminal title was |
|
written, otherwise False. Note that a return value of True |
|
does not guarantee that the window title has actually changed, |
|
since the feature may be unsupported/disabled in some terminals. |
|
""" |
|
if self.is_terminal: |
|
self.control(Control.title(title)) |
|
return True |
|
return False |
|
|
|
def screen( |
|
self, hide_cursor: bool = True, style: Optional[StyleType] = None |
|
) -> "ScreenContext": |
|
"""Context manager to enable and disable 'alternative screen' mode. |
|
|
|
Args: |
|
hide_cursor (bool, optional): Also hide the cursor. Defaults to False. |
|
style (Style, optional): Optional style for screen. Defaults to None. |
|
|
|
Returns: |
|
~ScreenContext: Context which enables alternate screen on enter, and disables it on exit. |
|
""" |
|
return ScreenContext(self, hide_cursor=hide_cursor, style=style or "") |
|
|
|
def measure( |
|
self, renderable: RenderableType, *, options: Optional[ConsoleOptions] = None |
|
) -> Measurement: |
|
"""Measure a renderable. Returns a :class:`~rich.measure.Measurement` object which contains |
|
information regarding the number of characters required to print the renderable. |
|
|
|
Args: |
|
renderable (RenderableType): Any renderable or string. |
|
options (Optional[ConsoleOptions], optional): Options to use when measuring, or None |
|
to use default options. Defaults to None. |
|
|
|
Returns: |
|
Measurement: A measurement of the renderable. |
|
""" |
|
measurement = Measurement.get(self, options or self.options, renderable) |
|
return measurement |
|
|
|
def render( |
|
self, renderable: RenderableType, options: Optional[ConsoleOptions] = None |
|
) -> Iterable[Segment]: |
|
"""Render an object in to an iterable of `Segment` instances. |
|
|
|
This method contains the logic for rendering objects with the console protocol. |
|
You are unlikely to need to use it directly, unless you are extending the library. |
|
|
|
Args: |
|
renderable (RenderableType): An object supporting the console protocol, or |
|
an object that may be converted to a string. |
|
options (ConsoleOptions, optional): An options object, or None to use self.options. Defaults to None. |
|
|
|
Returns: |
|
Iterable[Segment]: An iterable of segments that may be rendered. |
|
""" |
|
|
|
_options = options or self.options |
|
if _options.max_width < 1: |
|
|
|
return |
|
render_iterable: RenderResult |
|
|
|
renderable = rich_cast(renderable) |
|
if hasattr(renderable, "__rich_console__") and not isclass(renderable): |
|
render_iterable = renderable.__rich_console__(self, _options) |
|
elif isinstance(renderable, str): |
|
text_renderable = self.render_str( |
|
renderable, highlight=_options.highlight, markup=_options.markup |
|
) |
|
render_iterable = text_renderable.__rich_console__(self, _options) |
|
else: |
|
raise errors.NotRenderableError( |
|
f"Unable to render {renderable!r}; " |
|
"A str, Segment or object with __rich_console__ method is required" |
|
) |
|
|
|
try: |
|
iter_render = iter(render_iterable) |
|
except TypeError: |
|
raise errors.NotRenderableError( |
|
f"object {render_iterable!r} is not renderable" |
|
) |
|
_Segment = Segment |
|
_options = _options.reset_height() |
|
for render_output in iter_render: |
|
if isinstance(render_output, _Segment): |
|
yield render_output |
|
else: |
|
yield from self.render(render_output, _options) |
|
|
|
def render_lines( |
|
self, |
|
renderable: RenderableType, |
|
options: Optional[ConsoleOptions] = None, |
|
*, |
|
style: Optional[Style] = None, |
|
pad: bool = True, |
|
new_lines: bool = False, |
|
) -> List[List[Segment]]: |
|
"""Render objects in to a list of lines. |
|
|
|
The output of render_lines is useful when further formatting of rendered console text |
|
is required, such as the Panel class which draws a border around any renderable object. |
|
|
|
Args: |
|
renderable (RenderableType): Any object renderable in the console. |
|
options (Optional[ConsoleOptions], optional): Console options, or None to use self.options. Default to ``None``. |
|
style (Style, optional): Optional style to apply to renderables. Defaults to ``None``. |
|
pad (bool, optional): Pad lines shorter than render width. Defaults to ``True``. |
|
new_lines (bool, optional): Include "\n" characters at end of lines. |
|
|
|
Returns: |
|
List[List[Segment]]: A list of lines, where a line is a list of Segment objects. |
|
""" |
|
with self._lock: |
|
render_options = options or self.options |
|
_rendered = self.render(renderable, render_options) |
|
if style: |
|
_rendered = Segment.apply_style(_rendered, style) |
|
|
|
render_height = render_options.height |
|
if render_height is not None: |
|
render_height = max(0, render_height) |
|
|
|
lines = list( |
|
islice( |
|
Segment.split_and_crop_lines( |
|
_rendered, |
|
render_options.max_width, |
|
include_new_lines=new_lines, |
|
pad=pad, |
|
style=style, |
|
), |
|
None, |
|
render_height, |
|
) |
|
) |
|
if render_options.height is not None: |
|
extra_lines = render_options.height - len(lines) |
|
if extra_lines > 0: |
|
pad_line = [ |
|
( |
|
[ |
|
Segment(" " * render_options.max_width, style), |
|
Segment("\n"), |
|
] |
|
if new_lines |
|
else [Segment(" " * render_options.max_width, style)] |
|
) |
|
] |
|
lines.extend(pad_line * extra_lines) |
|
|
|
return lines |
|
|
|
def render_str( |
|
self, |
|
text: str, |
|
*, |
|
style: Union[str, Style] = "", |
|
justify: Optional[JustifyMethod] = None, |
|
overflow: Optional[OverflowMethod] = None, |
|
emoji: Optional[bool] = None, |
|
markup: Optional[bool] = None, |
|
highlight: Optional[bool] = None, |
|
highlighter: Optional[HighlighterType] = None, |
|
) -> "Text": |
|
"""Convert a string to a Text instance. This is called automatically if |
|
you print or log a string. |
|
|
|
Args: |
|
text (str): Text to render. |
|
style (Union[str, Style], optional): Style to apply to rendered text. |
|
justify (str, optional): Justify method: "default", "left", "center", "full", or "right". Defaults to ``None``. |
|
overflow (str, optional): Overflow method: "crop", "fold", or "ellipsis". Defaults to ``None``. |
|
emoji (Optional[bool], optional): Enable emoji, or ``None`` to use Console default. |
|
markup (Optional[bool], optional): Enable markup, or ``None`` to use Console default. |
|
highlight (Optional[bool], optional): Enable highlighting, or ``None`` to use Console default. |
|
highlighter (HighlighterType, optional): Optional highlighter to apply. |
|
Returns: |
|
ConsoleRenderable: Renderable object. |
|
|
|
""" |
|
emoji_enabled = emoji or (emoji is None and self._emoji) |
|
markup_enabled = markup or (markup is None and self._markup) |
|
highlight_enabled = highlight or (highlight is None and self._highlight) |
|
|
|
if markup_enabled: |
|
rich_text = render_markup( |
|
text, |
|
style=style, |
|
emoji=emoji_enabled, |
|
emoji_variant=self._emoji_variant, |
|
) |
|
rich_text.justify = justify |
|
rich_text.overflow = overflow |
|
else: |
|
rich_text = Text( |
|
( |
|
_emoji_replace(text, default_variant=self._emoji_variant) |
|
if emoji_enabled |
|
else text |
|
), |
|
justify=justify, |
|
overflow=overflow, |
|
style=style, |
|
) |
|
|
|
_highlighter = (highlighter or self.highlighter) if highlight_enabled else None |
|
if _highlighter is not None: |
|
highlight_text = _highlighter(str(rich_text)) |
|
highlight_text.copy_styles(rich_text) |
|
return highlight_text |
|
|
|
return rich_text |
|
|
|
def get_style( |
|
self, name: Union[str, Style], *, default: Optional[Union[Style, str]] = None |
|
) -> Style: |
|
"""Get a Style instance by its theme name or parse a definition. |
|
|
|
Args: |
|
name (str): The name of a style or a style definition. |
|
|
|
Returns: |
|
Style: A Style object. |
|
|
|
Raises: |
|
MissingStyle: If no style could be parsed from name. |
|
|
|
""" |
|
if isinstance(name, Style): |
|
return name |
|
|
|
try: |
|
style = self._theme_stack.get(name) |
|
if style is None: |
|
style = Style.parse(name) |
|
return style.copy() if style.link else style |
|
except errors.StyleSyntaxError as error: |
|
if default is not None: |
|
return self.get_style(default) |
|
raise errors.MissingStyle( |
|
f"Failed to get style {name!r}; {error}" |
|
) from None |
|
|
|
def _collect_renderables( |
|
self, |
|
objects: Iterable[Any], |
|
sep: str, |
|
end: str, |
|
*, |
|
justify: Optional[JustifyMethod] = None, |
|
emoji: Optional[bool] = None, |
|
markup: Optional[bool] = None, |
|
highlight: Optional[bool] = None, |
|
) -> List[ConsoleRenderable]: |
|
"""Combine a number of renderables and text into one renderable. |
|
|
|
Args: |
|
objects (Iterable[Any]): Anything that Rich can render. |
|
sep (str): String to write between print data. |
|
end (str): String to write at end of print data. |
|
justify (str, optional): One of "left", "right", "center", or "full". Defaults to ``None``. |
|
emoji (Optional[bool], optional): Enable emoji code, or ``None`` to use console default. |
|
markup (Optional[bool], optional): Enable markup, or ``None`` to use console default. |
|
highlight (Optional[bool], optional): Enable automatic highlighting, or ``None`` to use console default. |
|
|
|
Returns: |
|
List[ConsoleRenderable]: A list of things to render. |
|
""" |
|
renderables: List[ConsoleRenderable] = [] |
|
_append = renderables.append |
|
text: List[Text] = [] |
|
append_text = text.append |
|
|
|
append = _append |
|
if justify in ("left", "center", "right"): |
|
|
|
def align_append(renderable: RenderableType) -> None: |
|
_append(Align(renderable, cast(AlignMethod, justify))) |
|
|
|
append = align_append |
|
|
|
_highlighter: HighlighterType = _null_highlighter |
|
if highlight or (highlight is None and self._highlight): |
|
_highlighter = self.highlighter |
|
|
|
def check_text() -> None: |
|
if text: |
|
sep_text = Text(sep, justify=justify, end=end) |
|
append(sep_text.join(text)) |
|
text.clear() |
|
|
|
for renderable in objects: |
|
renderable = rich_cast(renderable) |
|
if isinstance(renderable, str): |
|
append_text( |
|
self.render_str( |
|
renderable, |
|
emoji=emoji, |
|
markup=markup, |
|
highlight=highlight, |
|
highlighter=_highlighter, |
|
) |
|
) |
|
elif isinstance(renderable, Text): |
|
append_text(renderable) |
|
elif isinstance(renderable, ConsoleRenderable): |
|
check_text() |
|
append(renderable) |
|
elif is_expandable(renderable): |
|
check_text() |
|
append(Pretty(renderable, highlighter=_highlighter)) |
|
else: |
|
append_text(_highlighter(str(renderable))) |
|
|
|
check_text() |
|
|
|
if self.style is not None: |
|
style = self.get_style(self.style) |
|
renderables = [Styled(renderable, style) for renderable in renderables] |
|
|
|
return renderables |
|
|
|
def rule( |
|
self, |
|
title: TextType = "", |
|
*, |
|
characters: str = "─", |
|
style: Union[str, Style] = "rule.line", |
|
align: AlignMethod = "center", |
|
) -> None: |
|
"""Draw a line with optional centered title. |
|
|
|
Args: |
|
title (str, optional): Text to render over the rule. Defaults to "". |
|
characters (str, optional): Character(s) to form the line. Defaults to "─". |
|
style (str, optional): Style of line. Defaults to "rule.line". |
|
align (str, optional): How to align the title, one of "left", "center", or "right". Defaults to "center". |
|
""" |
|
from .rule import Rule |
|
|
|
rule = Rule(title=title, characters=characters, style=style, align=align) |
|
self.print(rule) |
|
|
|
def control(self, *control: Control) -> None: |
|
"""Insert non-printing control codes. |
|
|
|
Args: |
|
control_codes (str): Control codes, such as those that may move the cursor. |
|
""" |
|
if not self.is_dumb_terminal: |
|
with self: |
|
self._buffer.extend(_control.segment for _control in control) |
|
|
|
def out( |
|
self, |
|
*objects: Any, |
|
sep: str = " ", |
|
end: str = "\n", |
|
style: Optional[Union[str, Style]] = None, |
|
highlight: Optional[bool] = None, |
|
) -> None: |
|
"""Output to the terminal. This is a low-level way of writing to the terminal which unlike |
|
:meth:`~rich.console.Console.print` won't pretty print, wrap text, or apply markup, but will |
|
optionally apply highlighting and a basic style. |
|
|
|
Args: |
|
sep (str, optional): String to write between print data. Defaults to " ". |
|
end (str, optional): String to write at end of print data. Defaults to "\\\\n". |
|
style (Union[str, Style], optional): A style to apply to output. Defaults to None. |
|
highlight (Optional[bool], optional): Enable automatic highlighting, or ``None`` to use |
|
console default. Defaults to ``None``. |
|
""" |
|
raw_output: str = sep.join(str(_object) for _object in objects) |
|
self.print( |
|
raw_output, |
|
style=style, |
|
highlight=highlight, |
|
emoji=False, |
|
markup=False, |
|
no_wrap=True, |
|
overflow="ignore", |
|
crop=False, |
|
end=end, |
|
) |
|
|
|
def print( |
|
self, |
|
*objects: Any, |
|
sep: str = " ", |
|
end: str = "\n", |
|
style: Optional[Union[str, Style]] = None, |
|
justify: Optional[JustifyMethod] = None, |
|
overflow: Optional[OverflowMethod] = None, |
|
no_wrap: Optional[bool] = None, |
|
emoji: Optional[bool] = None, |
|
markup: Optional[bool] = None, |
|
highlight: Optional[bool] = None, |
|
width: Optional[int] = None, |
|
height: Optional[int] = None, |
|
crop: bool = True, |
|
soft_wrap: Optional[bool] = None, |
|
new_line_start: bool = False, |
|
) -> None: |
|
"""Print to the console. |
|
|
|
Args: |
|
objects (positional args): Objects to log to the terminal. |
|
sep (str, optional): String to write between print data. Defaults to " ". |
|
end (str, optional): String to write at end of print data. Defaults to "\\\\n". |
|
style (Union[str, Style], optional): A style to apply to output. Defaults to None. |
|
justify (str, optional): Justify method: "default", "left", "right", "center", or "full". Defaults to ``None``. |
|
overflow (str, optional): Overflow method: "ignore", "crop", "fold", or "ellipsis". Defaults to None. |
|
no_wrap (Optional[bool], optional): Disable word wrapping. Defaults to None. |
|
emoji (Optional[bool], optional): Enable emoji code, or ``None`` to use console default. Defaults to ``None``. |
|
markup (Optional[bool], optional): Enable markup, or ``None`` to use console default. Defaults to ``None``. |
|
highlight (Optional[bool], optional): Enable automatic highlighting, or ``None`` to use console default. Defaults to ``None``. |
|
width (Optional[int], optional): Width of output, or ``None`` to auto-detect. Defaults to ``None``. |
|
crop (Optional[bool], optional): Crop output to width of terminal. Defaults to True. |
|
soft_wrap (bool, optional): Enable soft wrap mode which disables word wrapping and cropping of text or ``None`` for |
|
Console default. Defaults to ``None``. |
|
new_line_start (bool, False): Insert a new line at the start if the output contains more than one line. Defaults to ``False``. |
|
""" |
|
if not objects: |
|
objects = (NewLine(),) |
|
|
|
if soft_wrap is None: |
|
soft_wrap = self.soft_wrap |
|
if soft_wrap: |
|
if no_wrap is None: |
|
no_wrap = True |
|
if overflow is None: |
|
overflow = "ignore" |
|
crop = False |
|
render_hooks = self._render_hooks[:] |
|
with self: |
|
renderables = self._collect_renderables( |
|
objects, |
|
sep, |
|
end, |
|
justify=justify, |
|
emoji=emoji, |
|
markup=markup, |
|
highlight=highlight, |
|
) |
|
for hook in render_hooks: |
|
renderables = hook.process_renderables(renderables) |
|
render_options = self.options.update( |
|
justify=justify, |
|
overflow=overflow, |
|
width=min(width, self.width) if width is not None else NO_CHANGE, |
|
height=height, |
|
no_wrap=no_wrap, |
|
markup=markup, |
|
highlight=highlight, |
|
) |
|
|
|
new_segments: List[Segment] = [] |
|
extend = new_segments.extend |
|
render = self.render |
|
if style is None: |
|
for renderable in renderables: |
|
extend(render(renderable, render_options)) |
|
else: |
|
for renderable in renderables: |
|
extend( |
|
Segment.apply_style( |
|
render(renderable, render_options), self.get_style(style) |
|
) |
|
) |
|
if new_line_start: |
|
if ( |
|
len("".join(segment.text for segment in new_segments).splitlines()) |
|
> 1 |
|
): |
|
new_segments.insert(0, Segment.line()) |
|
if crop: |
|
buffer_extend = self._buffer.extend |
|
for line in Segment.split_and_crop_lines( |
|
new_segments, self.width, pad=False |
|
): |
|
buffer_extend(line) |
|
else: |
|
self._buffer.extend(new_segments) |
|
|
|
def print_json( |
|
self, |
|
json: Optional[str] = None, |
|
*, |
|
data: Any = None, |
|
indent: Union[None, int, str] = 2, |
|
highlight: bool = True, |
|
skip_keys: bool = False, |
|
ensure_ascii: bool = False, |
|
check_circular: bool = True, |
|
allow_nan: bool = True, |
|
default: Optional[Callable[[Any], Any]] = None, |
|
sort_keys: bool = False, |
|
) -> None: |
|
"""Pretty prints JSON. Output will be valid JSON. |
|
|
|
Args: |
|
json (Optional[str]): A string containing JSON. |
|
data (Any): If json is not supplied, then encode this data. |
|
indent (Union[None, int, str], optional): Number of spaces to indent. Defaults to 2. |
|
highlight (bool, optional): Enable highlighting of output: Defaults to True. |
|
skip_keys (bool, optional): Skip keys not of a basic type. Defaults to False. |
|
ensure_ascii (bool, optional): Escape all non-ascii characters. Defaults to False. |
|
check_circular (bool, optional): Check for circular references. Defaults to True. |
|
allow_nan (bool, optional): Allow NaN and Infinity values. Defaults to True. |
|
default (Callable, optional): A callable that converts values that can not be encoded |
|
in to something that can be JSON encoded. Defaults to None. |
|
sort_keys (bool, optional): Sort dictionary keys. Defaults to False. |
|
""" |
|
from rich.json import JSON |
|
|
|
if json is None: |
|
json_renderable = JSON.from_data( |
|
data, |
|
indent=indent, |
|
highlight=highlight, |
|
skip_keys=skip_keys, |
|
ensure_ascii=ensure_ascii, |
|
check_circular=check_circular, |
|
allow_nan=allow_nan, |
|
default=default, |
|
sort_keys=sort_keys, |
|
) |
|
else: |
|
if not isinstance(json, str): |
|
raise TypeError( |
|
f"json must be str. Did you mean print_json(data={json!r}) ?" |
|
) |
|
json_renderable = JSON( |
|
json, |
|
indent=indent, |
|
highlight=highlight, |
|
skip_keys=skip_keys, |
|
ensure_ascii=ensure_ascii, |
|
check_circular=check_circular, |
|
allow_nan=allow_nan, |
|
default=default, |
|
sort_keys=sort_keys, |
|
) |
|
self.print(json_renderable, soft_wrap=True) |
|
|
|
def update_screen( |
|
self, |
|
renderable: RenderableType, |
|
*, |
|
region: Optional[Region] = None, |
|
options: Optional[ConsoleOptions] = None, |
|
) -> None: |
|
"""Update the screen at a given offset. |
|
|
|
Args: |
|
renderable (RenderableType): A Rich renderable. |
|
region (Region, optional): Region of screen to update, or None for entire screen. Defaults to None. |
|
x (int, optional): x offset. Defaults to 0. |
|
y (int, optional): y offset. Defaults to 0. |
|
|
|
Raises: |
|
errors.NoAltScreen: If the Console isn't in alt screen mode. |
|
|
|
""" |
|
if not self.is_alt_screen: |
|
raise errors.NoAltScreen("Alt screen must be enabled to call update_screen") |
|
render_options = options or self.options |
|
if region is None: |
|
x = y = 0 |
|
render_options = render_options.update_dimensions( |
|
render_options.max_width, render_options.height or self.height |
|
) |
|
else: |
|
x, y, width, height = region |
|
render_options = render_options.update_dimensions(width, height) |
|
|
|
lines = self.render_lines(renderable, options=render_options) |
|
self.update_screen_lines(lines, x, y) |
|
|
|
def update_screen_lines( |
|
self, lines: List[List[Segment]], x: int = 0, y: int = 0 |
|
) -> None: |
|
"""Update lines of the screen at a given offset. |
|
|
|
Args: |
|
lines (List[List[Segment]]): Rendered lines (as produced by :meth:`~rich.Console.render_lines`). |
|
x (int, optional): x offset (column no). Defaults to 0. |
|
y (int, optional): y offset (column no). Defaults to 0. |
|
|
|
Raises: |
|
errors.NoAltScreen: If the Console isn't in alt screen mode. |
|
""" |
|
if not self.is_alt_screen: |
|
raise errors.NoAltScreen("Alt screen must be enabled to call update_screen") |
|
screen_update = ScreenUpdate(lines, x, y) |
|
segments = self.render(screen_update) |
|
self._buffer.extend(segments) |
|
self._check_buffer() |
|
|
|
def print_exception( |
|
self, |
|
*, |
|
width: Optional[int] = 100, |
|
extra_lines: int = 3, |
|
theme: Optional[str] = None, |
|
word_wrap: bool = False, |
|
show_locals: bool = False, |
|
suppress: Iterable[Union[str, ModuleType]] = (), |
|
max_frames: int = 100, |
|
) -> None: |
|
"""Prints a rich render of the last exception and traceback. |
|
|
|
Args: |
|
width (Optional[int], optional): Number of characters used to render code. Defaults to 100. |
|
extra_lines (int, optional): Additional lines of code to render. Defaults to 3. |
|
theme (str, optional): Override pygments theme used in traceback |
|
word_wrap (bool, optional): Enable word wrapping of long lines. Defaults to False. |
|
show_locals (bool, optional): Enable display of local variables. Defaults to False. |
|
suppress (Iterable[Union[str, ModuleType]]): Optional sequence of modules or paths to exclude from traceback. |
|
max_frames (int): Maximum number of frames to show in a traceback, 0 for no maximum. Defaults to 100. |
|
""" |
|
from .traceback import Traceback |
|
|
|
traceback = Traceback( |
|
width=width, |
|
extra_lines=extra_lines, |
|
theme=theme, |
|
word_wrap=word_wrap, |
|
show_locals=show_locals, |
|
suppress=suppress, |
|
max_frames=max_frames, |
|
) |
|
self.print(traceback) |
|
|
|
@staticmethod |
|
def _caller_frame_info( |
|
offset: int, |
|
currentframe: Callable[[], Optional[FrameType]] = inspect.currentframe, |
|
) -> Tuple[str, int, Dict[str, Any]]: |
|
"""Get caller frame information. |
|
|
|
Args: |
|
offset (int): the caller offset within the current frame stack. |
|
currentframe (Callable[[], Optional[FrameType]], optional): the callable to use to |
|
retrieve the current frame. Defaults to ``inspect.currentframe``. |
|
|
|
Returns: |
|
Tuple[str, int, Dict[str, Any]]: A tuple containing the filename, the line number and |
|
the dictionary of local variables associated with the caller frame. |
|
|
|
Raises: |
|
RuntimeError: If the stack offset is invalid. |
|
""" |
|
|
|
offset += 1 |
|
|
|
frame = currentframe() |
|
if frame is not None: |
|
|
|
while offset and frame is not None: |
|
frame = frame.f_back |
|
offset -= 1 |
|
assert frame is not None |
|
return frame.f_code.co_filename, frame.f_lineno, frame.f_locals |
|
else: |
|
|
|
frame_info = inspect.stack()[offset] |
|
return frame_info.filename, frame_info.lineno, frame_info.frame.f_locals |
|
|
|
def log( |
|
self, |
|
*objects: Any, |
|
sep: str = " ", |
|
end: str = "\n", |
|
style: Optional[Union[str, Style]] = None, |
|
justify: Optional[JustifyMethod] = None, |
|
emoji: Optional[bool] = None, |
|
markup: Optional[bool] = None, |
|
highlight: Optional[bool] = None, |
|
log_locals: bool = False, |
|
_stack_offset: int = 1, |
|
) -> None: |
|
"""Log rich content to the terminal. |
|
|
|
Args: |
|
objects (positional args): Objects to log to the terminal. |
|
sep (str, optional): String to write between print data. Defaults to " ". |
|
end (str, optional): String to write at end of print data. Defaults to "\\\\n". |
|
style (Union[str, Style], optional): A style to apply to output. Defaults to None. |
|
justify (str, optional): One of "left", "right", "center", or "full". Defaults to ``None``. |
|
emoji (Optional[bool], optional): Enable emoji code, or ``None`` to use console default. Defaults to None. |
|
markup (Optional[bool], optional): Enable markup, or ``None`` to use console default. Defaults to None. |
|
highlight (Optional[bool], optional): Enable automatic highlighting, or ``None`` to use console default. Defaults to None. |
|
log_locals (bool, optional): Boolean to enable logging of locals where ``log()`` |
|
was called. Defaults to False. |
|
_stack_offset (int, optional): Offset of caller from end of call stack. Defaults to 1. |
|
""" |
|
if not objects: |
|
objects = (NewLine(),) |
|
|
|
render_hooks = self._render_hooks[:] |
|
|
|
with self: |
|
renderables = self._collect_renderables( |
|
objects, |
|
sep, |
|
end, |
|
justify=justify, |
|
emoji=emoji, |
|
markup=markup, |
|
highlight=highlight, |
|
) |
|
if style is not None: |
|
renderables = [Styled(renderable, style) for renderable in renderables] |
|
|
|
filename, line_no, locals = self._caller_frame_info(_stack_offset) |
|
link_path = None if filename.startswith("<") else os.path.abspath(filename) |
|
path = filename.rpartition(os.sep)[-1] |
|
if log_locals: |
|
locals_map = { |
|
key: value |
|
for key, value in locals.items() |
|
if not key.startswith("__") |
|
} |
|
renderables.append(render_scope(locals_map, title="[i]locals")) |
|
|
|
renderables = [ |
|
self._log_render( |
|
self, |
|
renderables, |
|
log_time=self.get_datetime(), |
|
path=path, |
|
line_no=line_no, |
|
link_path=link_path, |
|
) |
|
] |
|
for hook in render_hooks: |
|
renderables = hook.process_renderables(renderables) |
|
new_segments: List[Segment] = [] |
|
extend = new_segments.extend |
|
render = self.render |
|
render_options = self.options |
|
for renderable in renderables: |
|
extend(render(renderable, render_options)) |
|
buffer_extend = self._buffer.extend |
|
for line in Segment.split_and_crop_lines( |
|
new_segments, self.width, pad=False |
|
): |
|
buffer_extend(line) |
|
|
|
def on_broken_pipe(self) -> None: |
|
"""This function is called when a `BrokenPipeError` is raised. |
|
|
|
This can occur when piping Textual output in Linux and macOS. |
|
The default implementation is to exit the app, but you could implement |
|
this method in a subclass to change the behavior. |
|
|
|
See https://docs.python.org/3/library/signal.html#note-on-sigpipe for details. |
|
""" |
|
self.quiet = True |
|
devnull = os.open(os.devnull, os.O_WRONLY) |
|
os.dup2(devnull, sys.stdout.fileno()) |
|
raise SystemExit(1) |
|
|
|
def _check_buffer(self) -> None: |
|
"""Check if the buffer may be rendered. Render it if it can (e.g. Console.quiet is False) |
|
Rendering is supported on Windows, Unix and Jupyter environments. For |
|
legacy Windows consoles, the win32 API is called directly. |
|
This method will also record what it renders if recording is enabled via Console.record. |
|
""" |
|
if self.quiet: |
|
del self._buffer[:] |
|
return |
|
|
|
try: |
|
self._write_buffer() |
|
except BrokenPipeError: |
|
self.on_broken_pipe() |
|
|
|
def _write_buffer(self) -> None: |
|
"""Write the buffer to the output file.""" |
|
|
|
with self._lock: |
|
if self.record and not self._buffer_index: |
|
with self._record_buffer_lock: |
|
self._record_buffer.extend(self._buffer[:]) |
|
|
|
if self._buffer_index == 0: |
|
if self.is_jupyter: |
|
from .jupyter import display |
|
|
|
display(self._buffer, self._render_buffer(self._buffer[:])) |
|
del self._buffer[:] |
|
else: |
|
if WINDOWS: |
|
use_legacy_windows_render = False |
|
if self.legacy_windows: |
|
fileno = get_fileno(self.file) |
|
if fileno is not None: |
|
use_legacy_windows_render = ( |
|
fileno in _STD_STREAMS_OUTPUT |
|
) |
|
|
|
if use_legacy_windows_render: |
|
from rich._win32_console import LegacyWindowsTerm |
|
from rich._windows_renderer import legacy_windows_render |
|
|
|
buffer = self._buffer[:] |
|
if self.no_color and self._color_system: |
|
buffer = list(Segment.remove_color(buffer)) |
|
|
|
legacy_windows_render(buffer, LegacyWindowsTerm(self.file)) |
|
else: |
|
|
|
text = self._render_buffer(self._buffer[:]) |
|
|
|
|
|
|
|
write = self.file.write |
|
|
|
MAX_WRITE = 32 * 1024 // 4 |
|
try: |
|
if len(text) <= MAX_WRITE: |
|
write(text) |
|
else: |
|
batch: List[str] = [] |
|
batch_append = batch.append |
|
size = 0 |
|
for line in text.splitlines(True): |
|
if size + len(line) > MAX_WRITE and batch: |
|
write("".join(batch)) |
|
batch.clear() |
|
size = 0 |
|
batch_append(line) |
|
size += len(line) |
|
if batch: |
|
write("".join(batch)) |
|
batch.clear() |
|
except UnicodeEncodeError as error: |
|
error.reason = f"{error.reason}\n*** You may need to add PYTHONIOENCODING=utf-8 to your environment ***" |
|
raise |
|
else: |
|
text = self._render_buffer(self._buffer[:]) |
|
try: |
|
self.file.write(text) |
|
except UnicodeEncodeError as error: |
|
error.reason = f"{error.reason}\n*** You may need to add PYTHONIOENCODING=utf-8 to your environment ***" |
|
raise |
|
|
|
self.file.flush() |
|
del self._buffer[:] |
|
|
|
def _render_buffer(self, buffer: Iterable[Segment]) -> str: |
|
"""Render buffered output, and clear buffer.""" |
|
output: List[str] = [] |
|
append = output.append |
|
color_system = self._color_system |
|
legacy_windows = self.legacy_windows |
|
not_terminal = not self.is_terminal |
|
if self.no_color and color_system: |
|
buffer = Segment.remove_color(buffer) |
|
for text, style, control in buffer: |
|
if style: |
|
append( |
|
style.render( |
|
text, |
|
color_system=color_system, |
|
legacy_windows=legacy_windows, |
|
) |
|
) |
|
elif not (not_terminal and control): |
|
append(text) |
|
|
|
rendered = "".join(output) |
|
return rendered |
|
|
|
def input( |
|
self, |
|
prompt: TextType = "", |
|
*, |
|
markup: bool = True, |
|
emoji: bool = True, |
|
password: bool = False, |
|
stream: Optional[TextIO] = None, |
|
) -> str: |
|
"""Displays a prompt and waits for input from the user. The prompt may contain color / style. |
|
|
|
It works in the same way as Python's builtin :func:`input` function and provides elaborate line editing and history features if Python's builtin :mod:`readline` module is previously loaded. |
|
|
|
Args: |
|
prompt (Union[str, Text]): Text to render in the prompt. |
|
markup (bool, optional): Enable console markup (requires a str prompt). Defaults to True. |
|
emoji (bool, optional): Enable emoji (requires a str prompt). Defaults to True. |
|
password: (bool, optional): Hide typed text. Defaults to False. |
|
stream: (TextIO, optional): Optional file to read input from (rather than stdin). Defaults to None. |
|
|
|
Returns: |
|
str: Text read from stdin. |
|
""" |
|
if prompt: |
|
self.print(prompt, markup=markup, emoji=emoji, end="") |
|
if password: |
|
result = getpass("", stream=stream) |
|
else: |
|
if stream: |
|
result = stream.readline() |
|
else: |
|
result = input() |
|
return result |
|
|
|
def export_text(self, *, clear: bool = True, styles: bool = False) -> str: |
|
"""Generate text from console contents (requires record=True argument in constructor). |
|
|
|
Args: |
|
clear (bool, optional): Clear record buffer after exporting. Defaults to ``True``. |
|
styles (bool, optional): If ``True``, ansi escape codes will be included. ``False`` for plain text. |
|
Defaults to ``False``. |
|
|
|
Returns: |
|
str: String containing console contents. |
|
|
|
""" |
|
assert ( |
|
self.record |
|
), "To export console contents set record=True in the constructor or instance" |
|
|
|
with self._record_buffer_lock: |
|
if styles: |
|
text = "".join( |
|
(style.render(text) if style else text) |
|
for text, style, _ in self._record_buffer |
|
) |
|
else: |
|
text = "".join( |
|
segment.text |
|
for segment in self._record_buffer |
|
if not segment.control |
|
) |
|
if clear: |
|
del self._record_buffer[:] |
|
return text |
|
|
|
def save_text(self, path: str, *, clear: bool = True, styles: bool = False) -> None: |
|
"""Generate text from console and save to a given location (requires record=True argument in constructor). |
|
|
|
Args: |
|
path (str): Path to write text files. |
|
clear (bool, optional): Clear record buffer after exporting. Defaults to ``True``. |
|
styles (bool, optional): If ``True``, ansi style codes will be included. ``False`` for plain text. |
|
Defaults to ``False``. |
|
|
|
""" |
|
text = self.export_text(clear=clear, styles=styles) |
|
with open(path, "w", encoding="utf-8") as write_file: |
|
write_file.write(text) |
|
|
|
def export_html( |
|
self, |
|
*, |
|
theme: Optional[TerminalTheme] = None, |
|
clear: bool = True, |
|
code_format: Optional[str] = None, |
|
inline_styles: bool = False, |
|
) -> str: |
|
"""Generate HTML from console contents (requires record=True argument in constructor). |
|
|
|
Args: |
|
theme (TerminalTheme, optional): TerminalTheme object containing console colors. |
|
clear (bool, optional): Clear record buffer after exporting. Defaults to ``True``. |
|
code_format (str, optional): Format string to render HTML. In addition to '{foreground}', |
|
'{background}', and '{code}', should contain '{stylesheet}' if inline_styles is ``False``. |
|
inline_styles (bool, optional): If ``True`` styles will be inlined in to spans, which makes files |
|
larger but easier to cut and paste markup. If ``False``, styles will be embedded in a style tag. |
|
Defaults to False. |
|
|
|
Returns: |
|
str: String containing console contents as HTML. |
|
""" |
|
assert ( |
|
self.record |
|
), "To export console contents set record=True in the constructor or instance" |
|
fragments: List[str] = [] |
|
append = fragments.append |
|
_theme = theme or DEFAULT_TERMINAL_THEME |
|
stylesheet = "" |
|
|
|
render_code_format = CONSOLE_HTML_FORMAT if code_format is None else code_format |
|
|
|
with self._record_buffer_lock: |
|
if inline_styles: |
|
for text, style, _ in Segment.filter_control( |
|
Segment.simplify(self._record_buffer) |
|
): |
|
text = escape(text) |
|
if style: |
|
rule = style.get_html_style(_theme) |
|
if style.link: |
|
text = f'<a href="{style.link}">{text}</a>' |
|
text = f'<span style="{rule}">{text}</span>' if rule else text |
|
append(text) |
|
else: |
|
styles: Dict[str, int] = {} |
|
for text, style, _ in Segment.filter_control( |
|
Segment.simplify(self._record_buffer) |
|
): |
|
text = escape(text) |
|
if style: |
|
rule = style.get_html_style(_theme) |
|
style_number = styles.setdefault(rule, len(styles) + 1) |
|
if style.link: |
|
text = f'<a class="r{style_number}" href="{style.link}">{text}</a>' |
|
else: |
|
text = f'<span class="r{style_number}">{text}</span>' |
|
append(text) |
|
stylesheet_rules: List[str] = [] |
|
stylesheet_append = stylesheet_rules.append |
|
for style_rule, style_number in styles.items(): |
|
if style_rule: |
|
stylesheet_append(f".r{style_number} {{{style_rule}}}") |
|
stylesheet = "\n".join(stylesheet_rules) |
|
|
|
rendered_code = render_code_format.format( |
|
code="".join(fragments), |
|
stylesheet=stylesheet, |
|
foreground=_theme.foreground_color.hex, |
|
background=_theme.background_color.hex, |
|
) |
|
if clear: |
|
del self._record_buffer[:] |
|
return rendered_code |
|
|
|
def save_html( |
|
self, |
|
path: str, |
|
*, |
|
theme: Optional[TerminalTheme] = None, |
|
clear: bool = True, |
|
code_format: str = CONSOLE_HTML_FORMAT, |
|
inline_styles: bool = False, |
|
) -> None: |
|
"""Generate HTML from console contents and write to a file (requires record=True argument in constructor). |
|
|
|
Args: |
|
path (str): Path to write html file. |
|
theme (TerminalTheme, optional): TerminalTheme object containing console colors. |
|
clear (bool, optional): Clear record buffer after exporting. Defaults to ``True``. |
|
code_format (str, optional): Format string to render HTML. In addition to '{foreground}', |
|
'{background}', and '{code}', should contain '{stylesheet}' if inline_styles is ``False``. |
|
inline_styles (bool, optional): If ``True`` styles will be inlined in to spans, which makes files |
|
larger but easier to cut and paste markup. If ``False``, styles will be embedded in a style tag. |
|
Defaults to False. |
|
|
|
""" |
|
html = self.export_html( |
|
theme=theme, |
|
clear=clear, |
|
code_format=code_format, |
|
inline_styles=inline_styles, |
|
) |
|
with open(path, "w", encoding="utf-8") as write_file: |
|
write_file.write(html) |
|
|
|
def export_svg( |
|
self, |
|
*, |
|
title: str = "Rich", |
|
theme: Optional[TerminalTheme] = None, |
|
clear: bool = True, |
|
code_format: str = CONSOLE_SVG_FORMAT, |
|
font_aspect_ratio: float = 0.61, |
|
unique_id: Optional[str] = None, |
|
) -> str: |
|
""" |
|
Generate an SVG from the console contents (requires record=True in Console constructor). |
|
|
|
Args: |
|
title (str, optional): The title of the tab in the output image |
|
theme (TerminalTheme, optional): The ``TerminalTheme`` object to use to style the terminal |
|
clear (bool, optional): Clear record buffer after exporting. Defaults to ``True`` |
|
code_format (str, optional): Format string used to generate the SVG. Rich will inject a number of variables |
|
into the string in order to form the final SVG output. The default template used and the variables |
|
injected by Rich can be found by inspecting the ``console.CONSOLE_SVG_FORMAT`` variable. |
|
font_aspect_ratio (float, optional): The width to height ratio of the font used in the ``code_format`` |
|
string. Defaults to 0.61, which is the width to height ratio of Fira Code (the default font). |
|
If you aren't specifying a different font inside ``code_format``, you probably don't need this. |
|
unique_id (str, optional): unique id that is used as the prefix for various elements (CSS styles, node |
|
ids). If not set, this defaults to a computed value based on the recorded content. |
|
""" |
|
|
|
from rich.cells import cell_len |
|
|
|
style_cache: Dict[Style, str] = {} |
|
|
|
def get_svg_style(style: Style) -> str: |
|
"""Convert a Style to CSS rules for SVG.""" |
|
if style in style_cache: |
|
return style_cache[style] |
|
css_rules = [] |
|
color = ( |
|
_theme.foreground_color |
|
if (style.color is None or style.color.is_default) |
|
else style.color.get_truecolor(_theme) |
|
) |
|
bgcolor = ( |
|
_theme.background_color |
|
if (style.bgcolor is None or style.bgcolor.is_default) |
|
else style.bgcolor.get_truecolor(_theme) |
|
) |
|
if style.reverse: |
|
color, bgcolor = bgcolor, color |
|
if style.dim: |
|
color = blend_rgb(color, bgcolor, 0.4) |
|
css_rules.append(f"fill: {color.hex}") |
|
if style.bold: |
|
css_rules.append("font-weight: bold") |
|
if style.italic: |
|
css_rules.append("font-style: italic;") |
|
if style.underline: |
|
css_rules.append("text-decoration: underline;") |
|
if style.strike: |
|
css_rules.append("text-decoration: line-through;") |
|
|
|
css = ";".join(css_rules) |
|
style_cache[style] = css |
|
return css |
|
|
|
_theme = theme or SVG_EXPORT_THEME |
|
|
|
width = self.width |
|
char_height = 20 |
|
char_width = char_height * font_aspect_ratio |
|
line_height = char_height * 1.22 |
|
|
|
margin_top = 1 |
|
margin_right = 1 |
|
margin_bottom = 1 |
|
margin_left = 1 |
|
|
|
padding_top = 40 |
|
padding_right = 8 |
|
padding_bottom = 8 |
|
padding_left = 8 |
|
|
|
padding_width = padding_left + padding_right |
|
padding_height = padding_top + padding_bottom |
|
margin_width = margin_left + margin_right |
|
margin_height = margin_top + margin_bottom |
|
|
|
text_backgrounds: List[str] = [] |
|
text_group: List[str] = [] |
|
classes: Dict[str, int] = {} |
|
style_no = 1 |
|
|
|
def escape_text(text: str) -> str: |
|
"""HTML escape text and replace spaces with nbsp.""" |
|
return escape(text).replace(" ", " ") |
|
|
|
def make_tag( |
|
name: str, content: Optional[str] = None, **attribs: object |
|
) -> str: |
|
"""Make a tag from name, content, and attributes.""" |
|
|
|
def stringify(value: object) -> str: |
|
if isinstance(value, (float)): |
|
return format(value, "g") |
|
return str(value) |
|
|
|
tag_attribs = " ".join( |
|
f'{k.lstrip("_").replace("_", "-")}="{stringify(v)}"' |
|
for k, v in attribs.items() |
|
) |
|
return ( |
|
f"<{name} {tag_attribs}>{content}</{name}>" |
|
if content |
|
else f"<{name} {tag_attribs}/>" |
|
) |
|
|
|
with self._record_buffer_lock: |
|
segments = list(Segment.filter_control(self._record_buffer)) |
|
if clear: |
|
self._record_buffer.clear() |
|
|
|
if unique_id is None: |
|
unique_id = "terminal-" + str( |
|
zlib.adler32( |
|
("".join(repr(segment) for segment in segments)).encode( |
|
"utf-8", |
|
"ignore", |
|
) |
|
+ title.encode("utf-8", "ignore") |
|
) |
|
) |
|
y = 0 |
|
for y, line in enumerate(Segment.split_and_crop_lines(segments, length=width)): |
|
x = 0 |
|
for text, style, _control in line: |
|
style = style or Style() |
|
rules = get_svg_style(style) |
|
if rules not in classes: |
|
classes[rules] = style_no |
|
style_no += 1 |
|
class_name = f"r{classes[rules]}" |
|
|
|
if style.reverse: |
|
has_background = True |
|
background = ( |
|
_theme.foreground_color.hex |
|
if style.color is None |
|
else style.color.get_truecolor(_theme).hex |
|
) |
|
else: |
|
bgcolor = style.bgcolor |
|
has_background = bgcolor is not None and not bgcolor.is_default |
|
background = ( |
|
_theme.background_color.hex |
|
if style.bgcolor is None |
|
else style.bgcolor.get_truecolor(_theme).hex |
|
) |
|
|
|
text_length = cell_len(text) |
|
if has_background: |
|
text_backgrounds.append( |
|
make_tag( |
|
"rect", |
|
fill=background, |
|
x=x * char_width, |
|
y=y * line_height + 1.5, |
|
width=char_width * text_length, |
|
height=line_height + 0.25, |
|
shape_rendering="crispEdges", |
|
) |
|
) |
|
|
|
if text != " " * len(text): |
|
text_group.append( |
|
make_tag( |
|
"text", |
|
escape_text(text), |
|
_class=f"{unique_id}-{class_name}", |
|
x=x * char_width, |
|
y=y * line_height + char_height, |
|
textLength=char_width * len(text), |
|
clip_path=f"url(#{unique_id}-line-{y})", |
|
) |
|
) |
|
x += cell_len(text) |
|
|
|
line_offsets = [line_no * line_height + 1.5 for line_no in range(y)] |
|
lines = "\n".join( |
|
f"""<clipPath id="{unique_id}-line-{line_no}"> |
|
{make_tag("rect", x=0, y=offset, width=char_width * width, height=line_height + 0.25)} |
|
</clipPath>""" |
|
for line_no, offset in enumerate(line_offsets) |
|
) |
|
|
|
styles = "\n".join( |
|
f".{unique_id}-r{rule_no} {{ {css} }}" for css, rule_no in classes.items() |
|
) |
|
backgrounds = "".join(text_backgrounds) |
|
matrix = "".join(text_group) |
|
|
|
terminal_width = ceil(width * char_width + padding_width) |
|
terminal_height = (y + 1) * line_height + padding_height |
|
chrome = make_tag( |
|
"rect", |
|
fill=_theme.background_color.hex, |
|
stroke="rgba(255,255,255,0.35)", |
|
stroke_width="1", |
|
x=margin_left, |
|
y=margin_top, |
|
width=terminal_width, |
|
height=terminal_height, |
|
rx=8, |
|
) |
|
|
|
title_color = _theme.foreground_color.hex |
|
if title: |
|
chrome += make_tag( |
|
"text", |
|
escape_text(title), |
|
_class=f"{unique_id}-title", |
|
fill=title_color, |
|
text_anchor="middle", |
|
x=terminal_width // 2, |
|
y=margin_top + char_height + 6, |
|
) |
|
chrome += f""" |
|
<g transform="translate(26,22)"> |
|
<circle cx="0" cy="0" r="7" fill="#ff5f57"/> |
|
<circle cx="22" cy="0" r="7" fill="#febc2e"/> |
|
<circle cx="44" cy="0" r="7" fill="#28c840"/> |
|
</g> |
|
""" |
|
|
|
svg = code_format.format( |
|
unique_id=unique_id, |
|
char_width=char_width, |
|
char_height=char_height, |
|
line_height=line_height, |
|
terminal_width=char_width * width - 1, |
|
terminal_height=(y + 1) * line_height - 1, |
|
width=terminal_width + margin_width, |
|
height=terminal_height + margin_height, |
|
terminal_x=margin_left + padding_left, |
|
terminal_y=margin_top + padding_top, |
|
styles=styles, |
|
chrome=chrome, |
|
backgrounds=backgrounds, |
|
matrix=matrix, |
|
lines=lines, |
|
) |
|
return svg |
|
|
|
def save_svg( |
|
self, |
|
path: str, |
|
*, |
|
title: str = "Rich", |
|
theme: Optional[TerminalTheme] = None, |
|
clear: bool = True, |
|
code_format: str = CONSOLE_SVG_FORMAT, |
|
font_aspect_ratio: float = 0.61, |
|
unique_id: Optional[str] = None, |
|
) -> None: |
|
"""Generate an SVG file from the console contents (requires record=True in Console constructor). |
|
|
|
Args: |
|
path (str): The path to write the SVG to. |
|
title (str, optional): The title of the tab in the output image |
|
theme (TerminalTheme, optional): The ``TerminalTheme`` object to use to style the terminal |
|
clear (bool, optional): Clear record buffer after exporting. Defaults to ``True`` |
|
code_format (str, optional): Format string used to generate the SVG. Rich will inject a number of variables |
|
into the string in order to form the final SVG output. The default template used and the variables |
|
injected by Rich can be found by inspecting the ``console.CONSOLE_SVG_FORMAT`` variable. |
|
font_aspect_ratio (float, optional): The width to height ratio of the font used in the ``code_format`` |
|
string. Defaults to 0.61, which is the width to height ratio of Fira Code (the default font). |
|
If you aren't specifying a different font inside ``code_format``, you probably don't need this. |
|
unique_id (str, optional): unique id that is used as the prefix for various elements (CSS styles, node |
|
ids). If not set, this defaults to a computed value based on the recorded content. |
|
""" |
|
svg = self.export_svg( |
|
title=title, |
|
theme=theme, |
|
clear=clear, |
|
code_format=code_format, |
|
font_aspect_ratio=font_aspect_ratio, |
|
unique_id=unique_id, |
|
) |
|
with open(path, "w", encoding="utf-8") as write_file: |
|
write_file.write(svg) |
|
|
|
|
|
def _svg_hash(svg_main_code: str) -> str: |
|
"""Returns a unique hash for the given SVG main code. |
|
|
|
Args: |
|
svg_main_code (str): The content we're going to inject in the SVG envelope. |
|
|
|
Returns: |
|
str: a hash of the given content |
|
""" |
|
return str(zlib.adler32(svg_main_code.encode())) |
|
|
|
|
|
if __name__ == "__main__": |
|
console = Console(record=True) |
|
|
|
console.log( |
|
"JSONRPC [i]request[/i]", |
|
5, |
|
1.3, |
|
True, |
|
False, |
|
None, |
|
{ |
|
"jsonrpc": "2.0", |
|
"method": "subtract", |
|
"params": {"minuend": 42, "subtrahend": 23}, |
|
"id": 3, |
|
}, |
|
) |
|
|
|
console.log("Hello, World!", "{'a': 1}", repr(console)) |
|
|
|
console.print( |
|
{ |
|
"name": None, |
|
"empty": [], |
|
"quiz": { |
|
"sport": { |
|
"answered": True, |
|
"q1": { |
|
"question": "Which one is correct team name in NBA?", |
|
"options": [ |
|
"New York Bulls", |
|
"Los Angeles Kings", |
|
"Golden State Warriors", |
|
"Huston Rocket", |
|
], |
|
"answer": "Huston Rocket", |
|
}, |
|
}, |
|
"maths": { |
|
"answered": False, |
|
"q1": { |
|
"question": "5 + 7 = ?", |
|
"options": [10, 11, 12, 13], |
|
"answer": 12, |
|
}, |
|
"q2": { |
|
"question": "12 - 8 = ?", |
|
"options": [1, 2, 3, 4], |
|
"answer": 4, |
|
}, |
|
}, |
|
}, |
|
} |
|
) |
|
|