Source code for emoji_data.utils

import sys
from typing import Iterable, Iterator, Tuple, Union

if sys.version_info < (3, 9):  # pragma: no cover
    import importlib_resources  # type: ignore[import-not-found]
else:  # pragma: no cover
    import importlib.resources as importlib_resources


__all__ = ["emoji_data_lines", "code_points_to_string", "code_point_to_regex"]




def emoji_data_lines(data_file: str) -> Iterator[Tuple[str, str]]:
    ft = importlib_resources.files(__package__).joinpath("data").joinpath(data_file)
    for line in ft.read_text("utf-8").splitlines():
        line = line.strip()
        if not line or line[0] in "#;":
            continue
        parts = [s.strip() for s in line.split("#", 1)]
        content = parts[0]
        try:
            comment = parts[1]
        except IndexError:
            comment = ""
        yield content, comment





def code_points_to_string(code_points: Union[int, str, Iterable[Union[int, str]]]) -> str:
    if isinstance(code_points, str):
        return "".join(chr(int(s, 16)) for s in code_points.split())
    if isinstance(code_points, Iterable):
        return "".join(chr(int(n, 16)) if isinstance(n, str) else chr(n) for n in code_points)
    return chr(code_points)





def code_point_to_regex(code_point: int) -> str:
    return rf"\U{code_point:08X}" if code_point > 0xFFFF else rf"\u{code_point:04X}"