[BUG] Colors break if there's an `<` in the repr

[MicaelJarniac]

• [x] I've checked docs and closed issues for possible solutions.
• [x] I can't find my issue in the FAQ.

Describe the bug

If there's a < (less than) char in the repr of an object, the colors of other components that use <> break after it.

from rich.pretty import pprint

class A:
    def __init__(self, a=None):
        self.a = a

    def __repr__(self):
        return f"A(a={self.a!r}, b=<B>)"

pprint(A())
pprint(A("<"))
pprint(A(">"))
pprint(A("x"))

For example, if I have a dataclass or an attrs class with more than one enum attribute, the color of subsequent ones break when pretty printing.

from dataclasses import dataclass
from enum import Enum, auto

import attrs
from rich.pretty import pprint

class MyEnum(Enum):
    ONE = auto()

@attrs.define  # or @dataclass
class MyClass:
    first: MyEnum | None = None
    second: MyEnum | None = None

pprint(MyClass())
pprint(MyClass(first=MyEnum.ONE))
pprint(MyClass(second=MyEnum.ONE))
pprint(MyClass(first=MyEnum.ONE, second=MyEnum.ONE))

On the terminal:

On Jupyter:

Platform

Click to expand

Operating System: Manjaro Linux KDE Plasma Version: 5.27.5 KDE Frameworks Version: 5.106.0 Qt Version: 5.15.9 Kernel Version: 6.1.31-2-MANJARO (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 5800H with Radeon Graphics Memory: 13.5 GiB of RAM Graphics Processor: AMD Radeon Graphics Manufacturer: LENOVO Product Name: 82MJ System Version: IdeaPad Gaming 3 15ACH6 Shell: Zsh with Zsh for Humans and Tmux Terminal: VS Code's built-in terminal If you're using Rich in a terminal: ``` python -m rich.diagnose pip freeze | grep rich ```

`python -m rich.diagnose`

``` ❯ python -m rich.diagnose ╭────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── ──────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ │ A high level console interface. │ │ │ │ ╭────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ │ │ │ │ │ │ ╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯ │ │ │ │ color_system = 'truecolor' │ │ encoding = 'utf-8' │ │ file = <_io.TextIOWrapper name='' mode='w' encoding='utf-8'> │ │ height = 18 │ │ is_alt_screen = False │ │ is_dumb_terminal = False │ │ is_interactive = True │ │ is_jupyter = False │ │ is_terminal = True │ │ legacy_windows = False │ │ no_color = False │ │ options = ConsoleOptions(size=ConsoleDimensions(width=271, height=18), legacy_windows=False, min_width=1, max_width=271, is_terminal=True, encoding='utf-8', max_height=18, justify=None, overflow=None, no_wrap=False, highlight=None, markup=None, height=None) │ │ quiet = False │ │ record = False │ │ safe_box = True │ │ size = ConsoleDimensions(width=271, height=18) │ │ soft_wrap = False │ │ stderr = False │ │ style = None │ │ tab_size = 8 │ │ width = 271 │ ╰────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯ ╭─── ────╮ │ Windows features available. │ │ │ │ ╭───────────────────────────────────────────────────╮ │ │ │ WindowsConsoleFeatures(vt=False, truecolor=False) │ │ │ ╰───────────────────────────────────────────────────╯ │ │ │ │ truecolor = False │ │ vt = False │ ╰───────────────────────────────────────────────────────╯ ╭───────────────────────────────────────────────────────────────────────────────────────────────────────────────── Environment Variables ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮ │ {'TERM': 'tmux-256color', 'COLORTERM': 'truecolor', 'CLICOLOR': None, 'NO_COLOR': None, 'TERM_PROGRAM': 'tmux', 'COLUMNS': None, 'LINES': None, 'JUPYTER_COLUMNS': None, 'JUPYTER_LINES': None, 'JPY_PARENT_PID': None, 'VSCODE_VERBOSE_LOGGING': None} │ ╰─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯ platform="Linux" ```

``` ❯ pip freeze | grep rich rich==13.4.2 ❯ pip freeze | grep attrs attrs==23.1.0 ``` If you're using Rich in a Jupyter Notebook, run the following snippet in a cell and paste the output in your bug report. ```python from rich.diagnose import report report() ```

Report

``` ╭────────────────────── ──────────────────────╮ │ A high level console interface. │ │ │ │ ╭────────────────────────────────────────────────────────────────────────╮ │ │ │ │ │ │ ╰────────────────────────────────────────────────────────────────────────╯ │ │ │ │ color_system = 'truecolor' │ │ encoding = 'utf-8' │ │ file = │ │ height = 100 │ │ is_alt_screen = False │ │ is_dumb_terminal = False │ │ is_interactive = False │ │ is_jupyter = True │ │ is_terminal = False │ │ legacy_windows = False │ │ no_color = False │ │ options = ConsoleOptions( │ │ size=ConsoleDimensions(width=115, height=100), │ │ legacy_windows=False, │ │ min_width=1, │ │ max_width=115, │ │ is_terminal=False, │ │ encoding='utf-8', │ │ max_height=100, │ │ justify=None, │ │ overflow=None, │ │ no_wrap=False, │ │ highlight=None, │ │ markup=None, │ │ height=None │ │ ) │ │ quiet = False │ │ record = False │ │ safe_box = True │ │ size = ConsoleDimensions(width=115, height=100) │ │ soft_wrap = False │ │ stderr = False │ │ style = None │ │ tab_size = 8 │ │ width = 115 │ ╰────────────────────────────────────────────────────────────────────────────╯ ╭─── ────╮ │ Windows features available. │ │ │ │ ╭───────────────────────────────────────────────────╮ │ │ │ WindowsConsoleFeatures(vt=False, truecolor=False) │ │ │ ╰───────────────────────────────────────────────────╯ │ │ │ │ truecolor = False │ │ vt = False │ ╰───────────────────────────────────────────────────────╯ ╭────── Environment Variables ───────╮ │ { │ │ 'TERM': 'xterm-color', │ │ 'COLORTERM': 'truecolor', │ │ 'CLICOLOR': '1', │ │ 'NO_COLOR': None, │ │ 'TERM_PROGRAM': 'tmux', │ │ 'COLUMNS': None, │ │ 'LINES': None, │ │ 'JUPYTER_COLUMNS': None, │ │ 'JUPYTER_LINES': None, │ │ 'JPY_PARENT_PID': None, │ │ 'VSCODE_VERBOSE_LOGGING': None │ │ } │ ╰────────────────────────────────────╯ platform="Linux" ```

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PS. You might want to check the FAQ if you haven't done so already.

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[trag1c]

Same thing happens on macOS Ventura 13.4.1 with iTerm2. Doesn't seem like it's platform-dependent but @MicaelJarniac asked me to check :D

[MicaelJarniac]

I've simplified the example a lot, and came to this:

from rich.pretty import pprint

class A:
    def __init__(self, a=None):
        self.a = a

    def __repr__(self) -> str:
        return f"A(a={repr(self.a)}, b=<B>)"

pprint(A())
pprint(A("<"))
pprint(A(">"))
pprint(A("x"))

[MicaelJarniac]

I suspect the bug is in this line: https://github.com/Textualize/rich/blob/aca9467ec6a482b3bed1ba7d2e3de72271c5f817/rich/highlighter.py#L85

[MicaelJarniac]

from rich.pretty import pprint

class A:
    def __init__(self, a=None):
        self.a = a

    def __repr__(self) -> str:
        return f"A(a={self.a!r}, b=1.23, c=None, d=(1, 2))"

pprint([A("<"), A(">")])