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from __future__ import annotations
from functools import partial
from itertools import islice
from typing import (
Callable,
Iterable,
Iterator,
List,
Optional,
Sequence,
TypeVar,
Union,
)
import weechat
from slack.shared import WeechatCallbackReturnType, shared
T = TypeVar("T")
T2 = TypeVar("T2")
def get_callback_name(callback: Callable[..., WeechatCallbackReturnType]) -> str:
callback_id = f"{callback.__name__}-{id(callback)}"
shared.weechat_callbacks[callback_id] = callback
return callback_id
def with_color(color: Optional[str], string: str, reset_color: str = "reset"):
if color:
return f"{weechat.color(color)}{string}{weechat.color(reset_color)}"
else:
return string
# Escape chars that have special meaning to Slack. Note that we do not
# (and should not) perform full HTML entity-encoding here.
# See https://api.slack.com/reference/surfaces/formatting#escaping for details.
def htmlescape(text: str) -> str:
return text.replace("&", "&").replace("<", "<").replace(">", ">")
def unhtmlescape(text: str) -> str:
return text.replace("<", "<").replace(">", ">").replace("&", "&")
# From https://github.com/more-itertools/more-itertools/blob/v10.1.0/more_itertools/recipes.py#L93-L106
def take(n: int, iterable: Iterable[T]) -> List[T]:
"""Return first *n* items of the iterable as a list.
>>> take(3, range(10))
[0, 1, 2]
If there are fewer than *n* items in the iterable, all of them are
returned.
>>> take(10, range(3))
[0, 1, 2]
"""
return list(islice(iterable, n))
# Modified from https://github.com/more-itertools/more-itertools/blob/v10.1.0/more_itertools/more.py#L149-L181
def chunked(iterable: Iterable[T], n: int, strict: bool = False) -> Iterator[List[T]]:
"""Break *iterable* into lists of length *n*:
>>> list(chunked([1, 2, 3, 4, 5, 6], 3))
[[1, 2, 3], [4, 5, 6]]
The last yielded list will have fewer than *n* elements
if the length of *iterable* is not divisible by *n*:
>>> list(chunked([1, 2, 3, 4, 5, 6, 7, 8], 3))
[[1, 2, 3], [4, 5, 6], [7, 8]]
To use a fill-in value instead, see the :func:`grouper` recipe.
"""
return iter(partial(take, n, iter(iterable)), [])
# From https://stackoverflow.com/a/5921708
def intersperse(lst: Sequence[Union[T, T2]], item: T2) -> List[Union[T, T2]]:
"""Inserts item between each item in lst"""
result: List[Union[T, T2]] = [item] * (len(lst) * 2 - 1)
result[0::2] = lst
return result
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